[PATCH 00/23] ARM: OMAP2+: PRCM cleanups towards 3.19 / part2

[PATCH 00/23] ARM: OMAP2+: PRCM cleanups towards 3.19 / part2

[Tero Kristo]

Hi,

Yet another PRCM cleanup set, towards making PRCM a separate driver.
This set is most likely too late for 3.19, but hopefully it can make
it to 3.20. Couple of related clock patches are also within this set,
as some of the clock support code is now obsolete. Most important
things this set does, is to separate the PRCM driver initializations
under their own parts, and split the control module init under its
own driver file also. This set still does not introduce regmap support
for PRCM, as I am not too sure whether it should be done at all.
It seems we can implement all the clock / vcvp / etc. support rather
neatly just with using iomaps.

Testing done:

am335x-evm: boot
am335x-sk: boot
am3517-evm: boot
am43xx-gpevm: boot
beaglebone-black: boot
beaglebone: boot
dra7xx-evm: boot
omap5-evm: boot
omap3-beagle: boot, suspend (ret), suspend (off) (UART wakeup seems broken on 3.18-rc1 btw)
omap4-panda-es: boot

Testing branch pushed here:
tree: https://github.com/t-kristo/linux-pm.git
branch: for-v3.19/prcm-cleanup-part2

This is based on top of Tony's omap-for-v3.19/prcm.

-Tero

[PATCH 00/23] ARM: OMAP2+: PRCM cleanups towards 3.19 / part2

[Tero Kristo]

Hi,

Yet another PRCM cleanup set, towards making PRCM a separate driver.
This set is most likely too late for 3.19, but hopefully it can make
it to 3.20. Couple of related clock patches are also within this set,
as some of the clock support code is now obsolete. Most important
things this set does, is to separate the PRCM driver initializations
under their own parts, and split the control module init under its
own driver file also. This set still does not introduce regmap support
for PRCM, as I am not too sure whether it should be done at all.
It seems we can implement all the clock / vcvp / etc. support rather
neatly just with using iomaps.

Testing done:

am335x-evm: boot
am335x-sk: boot
am3517-evm: boot
am43xx-gpevm: boot
beaglebone-black: boot
beaglebone: boot
dra7xx-evm: boot
omap5-evm: boot
omap3-beagle: boot, suspend (ret), suspend (off) (UART wakeup seems broken on 3.18-rc1 btw)
omap4-panda-es: boot

Testing branch pushed here:
tree: https://github.com/t-kristo/linux-pm.git
branch: for-v3.19/prcm-cleanup-part2

This is based on top of Tony's omap-for-v3.19/prcm.

-Tero

[PATCH 01/23] ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

[Tero Kristo]

Splits the clock provider init out of the PRM driver and moves it to
clock driver. This is needed so that once the PRCM drivers are separated,
they can logically just access the clock driver not needing to go through
common PRM code. This would be wrong in the case of control module for
example.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/clock.c       |   67 +++++++++++++++++++++++++++++++------
 arch/arm/mach-omap2/clock.h       |    4 +--
 arch/arm/mach-omap2/prcm-common.h |    2 ++
 arch/arm/mach-omap2/prm_common.c  |   34 +------------------
 4 files changed, 61 insertions(+), 46 deletions(-)

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index ff2eb66..2e8b868 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -24,6 +24,7 @@
 #include <linux/io.h>
 #include <linux/bitops.h>
 #include <linux/clk-private.h>
+#include <linux/of_address.h>
 #include <asm/cpu.h>
 
 #include <trace/events/power.h>
@@ -73,32 +74,76 @@ struct ti_clk_features ti_clk_features;
 static bool clkdm_control = true;
 
 static LIST_HEAD(clk_hw_omap_clocks);
-void __iomem *clk_memmaps[CLK_MAX_MEMMAPS];
+static void __iomem *clk_memmaps[CLK_MAX_MEMMAPS];
+
+static void clk_memmap_writel(u32 val, void __iomem *reg)
+{
+	struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
+
+	writel_relaxed(val, clk_memmaps[r->index] + r->offset);
+}
+
+static u32 clk_memmap_readl(void __iomem *reg)
+{
+	struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
+
+	return readl_relaxed(clk_memmaps[r->index] + r->offset);
+}
 
 void omap2_clk_writel(u32 val, struct clk_hw_omap *clk, void __iomem *reg)
 {
-	if (clk->flags & MEMMAP_ADDRESSING) {
-		struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
-		writel_relaxed(val, clk_memmaps[r->index] + r->offset);
-	} else {
+	if (clk->flags & MEMMAP_ADDRESSING)
+		clk_memmap_writel(val, reg);
+	else
 		writel_relaxed(val, reg);
-	}
 }
 
 u32 omap2_clk_readl(struct clk_hw_omap *clk, void __iomem *reg)
 {
 	u32 val;
 
-	if (clk->flags & MEMMAP_ADDRESSING) {
-		struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
-		val = readl_relaxed(clk_memmaps[r->index] + r->offset);
-	} else {
+	if (clk->flags & MEMMAP_ADDRESSING)
+		val = clk_memmap_readl(reg);
+	else
 		val = readl_relaxed(reg);
-	}
 
 	return val;
 }
 
+static struct ti_clk_ll_ops omap_clk_ll_ops = {
+	.clk_readl = clk_memmap_readl,
+	.clk_writel = clk_memmap_writel,
+};
+
+/**
+ * omap2_clk_provider_init - initialize a clock provider
+ * @match_table: DT device table to match for devices to init
+ *
+ * Initializes a clock provider module (CM/PRM etc.), allocating the
+ * memory mapping, allocating the mapping index and initializing the
+ * low level driver infrastructure. Returns 0 in success, -ENOMEM in
+ * failure.
+ */
+int __init omap2_clk_provider_init(const struct of_device_id *match_table)
+{
+	struct device_node *np;
+	void __iomem *mem;
+	static int memmap_index;
+
+	ti_clk_ll_ops = &omap_clk_ll_ops;
+
+	for_each_matching_node(np, match_table) {
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+		clk_memmaps[memmap_index] = mem;
+		ti_dt_clk_init_provider(np, memmap_index);
+		memmap_index++;
+	}
+
+	return 0;
+}
+
 /*
  * OMAP2+ specific clock functions
  */
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 4592a27..8f6a0fb 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -267,8 +267,6 @@ extern const struct clksel_rate div_1_3_rates[];
 extern const struct clksel_rate div_1_4_rates[];
 extern const struct clksel_rate div31_1to31_rates[];
 
-extern void __iomem *clk_memmaps[];
-
 extern int am33xx_clk_init(void);
 
 extern int omap2_clkops_enable_clkdm(struct clk_hw *hw);
@@ -276,5 +274,7 @@ extern void omap2_clkops_disable_clkdm(struct clk_hw *hw);
 
 extern void omap_clocks_register(struct omap_clk *oclks, int cnt);
 
+int __init omap2_clk_provider_init(const struct of_device_id *match_table);
+
 void __init ti_clk_init_features(void);
 #endif
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index a8e4b58..22afef0 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -517,6 +517,8 @@ struct omap_prcm_irq_setup {
 	.priority = _priority				\
 	}
 
+struct of_device_id;
+
 extern void omap_prcm_irq_cleanup(void);
 extern int omap_prcm_register_chain_handler(
 	struct omap_prcm_irq_setup *irq_setup);
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 779940c..9f736d2 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -590,41 +590,9 @@ static const struct of_device_id omap_prcm_dt_match_table[] = {
 	{ }
 };
 
-static struct clk_hw_omap memmap_dummy_ck = {
-	.flags = MEMMAP_ADDRESSING,
-};
-
-static u32 prm_clk_readl(void __iomem *reg)
-{
-	return omap2_clk_readl(&memmap_dummy_ck, reg);
-}
-
-static void prm_clk_writel(u32 val, void __iomem *reg)
-{
-	omap2_clk_writel(val, &memmap_dummy_ck, reg);
-}
-
-static struct ti_clk_ll_ops omap_clk_ll_ops = {
-	.clk_readl = prm_clk_readl,
-	.clk_writel = prm_clk_writel,
-};
-
 int __init of_prcm_init(void)
 {
-	struct device_node *np;
-	void __iomem *mem;
-	int memmap_index = 0;
-
-	ti_clk_ll_ops = &omap_clk_ll_ops;
-
-	for_each_matching_node(np, omap_prcm_dt_match_table) {
-		mem = of_iomap(np, 0);
-		clk_memmaps[memmap_index] = mem;
-		ti_dt_clk_init_provider(np, memmap_index);
-		memmap_index++;
-	}
-
-	return 0;
+	return omap2_clk_provider_init(omap_prcm_dt_match_table);
 }
 
 static int __init prm_late_init(void)
-- 
1.7.9.5

[PATCH 01/23] ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

[Tero Kristo]

Splits the clock provider init out of the PRM driver and moves it to
clock driver. This is needed so that once the PRCM drivers are separated,
they can logically just access the clock driver not needing to go through
common PRM code. This would be wrong in the case of control module for
example.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/clock.c       |   67 +++++++++++++++++++++++++++++++------
 arch/arm/mach-omap2/clock.h       |    4 +--
 arch/arm/mach-omap2/prcm-common.h |    2 ++
 arch/arm/mach-omap2/prm_common.c  |   34 +------------------
 4 files changed, 61 insertions(+), 46 deletions(-)

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index ff2eb66..2e8b868 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -24,6 +24,7 @@
 #include <linux/io.h>
 #include <linux/bitops.h>
 #include <linux/clk-private.h>
+#include <linux/of_address.h>
 #include <asm/cpu.h>
 
 #include <trace/events/power.h>
@@ -73,32 +74,76 @@ struct ti_clk_features ti_clk_features;
 static bool clkdm_control = true;
 
 static LIST_HEAD(clk_hw_omap_clocks);
-void __iomem *clk_memmaps[CLK_MAX_MEMMAPS];
+static void __iomem *clk_memmaps[CLK_MAX_MEMMAPS];
+
+static void clk_memmap_writel(u32 val, void __iomem *reg)
+{
+	struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
+
+	writel_relaxed(val, clk_memmaps[r->index] + r->offset);
+}
+
+static u32 clk_memmap_readl(void __iomem *reg)
+{
+	struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
+
+	return readl_relaxed(clk_memmaps[r->index] + r->offset);
+}
 
 void omap2_clk_writel(u32 val, struct clk_hw_omap *clk, void __iomem *reg)
 {
-	if (clk->flags & MEMMAP_ADDRESSING) {
-		struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
-		writel_relaxed(val, clk_memmaps[r->index] + r->offset);
-	} else {
+	if (clk->flags & MEMMAP_ADDRESSING)
+		clk_memmap_writel(val, reg);
+	else
 		writel_relaxed(val, reg);
-	}
 }
 
 u32 omap2_clk_readl(struct clk_hw_omap *clk, void __iomem *reg)
 {
 	u32 val;
 
-	if (clk->flags & MEMMAP_ADDRESSING) {
-		struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
-		val = readl_relaxed(clk_memmaps[r->index] + r->offset);
-	} else {
+	if (clk->flags & MEMMAP_ADDRESSING)
+		val = clk_memmap_readl(reg);
+	else
 		val = readl_relaxed(reg);
-	}
 
 	return val;
 }
 
+static struct ti_clk_ll_ops omap_clk_ll_ops = {
+	.clk_readl = clk_memmap_readl,
+	.clk_writel = clk_memmap_writel,
+};
+
+/**
+ * omap2_clk_provider_init - initialize a clock provider
+ * @match_table: DT device table to match for devices to init
+ *
+ * Initializes a clock provider module (CM/PRM etc.), allocating the
+ * memory mapping, allocating the mapping index and initializing the
+ * low level driver infrastructure. Returns 0 in success, -ENOMEM in
+ * failure.
+ */
+int __init omap2_clk_provider_init(const struct of_device_id *match_table)
+{
+	struct device_node *np;
+	void __iomem *mem;
+	static int memmap_index;
+
+	ti_clk_ll_ops = &omap_clk_ll_ops;
+
+	for_each_matching_node(np, match_table) {
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+		clk_memmaps[memmap_index] = mem;
+		ti_dt_clk_init_provider(np, memmap_index);
+		memmap_index++;
+	}
+
+	return 0;
+}
+
 /*
  * OMAP2+ specific clock functions
  */
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 4592a27..8f6a0fb 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -267,8 +267,6 @@ extern const struct clksel_rate div_1_3_rates[];
 extern const struct clksel_rate div_1_4_rates[];
 extern const struct clksel_rate div31_1to31_rates[];
 
-extern void __iomem *clk_memmaps[];
-
 extern int am33xx_clk_init(void);
 
 extern int omap2_clkops_enable_clkdm(struct clk_hw *hw);
@@ -276,5 +274,7 @@ extern void omap2_clkops_disable_clkdm(struct clk_hw *hw);
 
 extern void omap_clocks_register(struct omap_clk *oclks, int cnt);
 
+int __init omap2_clk_provider_init(const struct of_device_id *match_table);
+
 void __init ti_clk_init_features(void);
 #endif
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index a8e4b58..22afef0 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -517,6 +517,8 @@ struct omap_prcm_irq_setup {
 	.priority = _priority				\
 	}
 
+struct of_device_id;
+
 extern void omap_prcm_irq_cleanup(void);
 extern int omap_prcm_register_chain_handler(
 	struct omap_prcm_irq_setup *irq_setup);
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 779940c..9f736d2 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -590,41 +590,9 @@ static const struct of_device_id omap_prcm_dt_match_table[] = {
 	{ }
 };
 
-static struct clk_hw_omap memmap_dummy_ck = {
-	.flags = MEMMAP_ADDRESSING,
-};
-
-static u32 prm_clk_readl(void __iomem *reg)
-{
-	return omap2_clk_readl(&memmap_dummy_ck, reg);
-}
-
-static void prm_clk_writel(u32 val, void __iomem *reg)
-{
-	omap2_clk_writel(val, &memmap_dummy_ck, reg);
-}
-
-static struct ti_clk_ll_ops omap_clk_ll_ops = {
-	.clk_readl = prm_clk_readl,
-	.clk_writel = prm_clk_writel,
-};
-
 int __init of_prcm_init(void)
 {
-	struct device_node *np;
-	void __iomem *mem;
-	int memmap_index = 0;
-
-	ti_clk_ll_ops = &omap_clk_ll_ops;
-
-	for_each_matching_node(np, omap_prcm_dt_match_table) {
-		mem = of_iomap(np, 0);
-		clk_memmaps[memmap_index] = mem;
-		ti_dt_clk_init_provider(np, memmap_index);
-		memmap_index++;
-	}
-
-	return 0;
+	return omap2_clk_provider_init(omap_prcm_dt_match_table);
 }
 
 static int __init prm_late_init(void)
-- 
1.7.9.5

[PATCH 02/23] ARM: OMAP2+: PRCM: rename of_prcm_init to omap_prcm_init

[Tero Kristo]

This avoids conflicts in the global namespace, and is more descriptive
of the purpose anyway.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/io.c         |    2 +-
 arch/arm/mach-omap2/prm.h        |    2 +-
 arch/arm/mach-omap2/prm_common.c |    8 +++++++-
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 4fc8383..4f269be 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -731,7 +731,7 @@ int __init omap_clk_init(void)
 
 	ti_clk_init_features();
 
-	ret = of_prcm_init();
+	ret = omap_prcm_init();
 	if (ret)
 		return ret;
 
diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index 77752e4..a38eaeb 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -19,7 +19,7 @@
 extern void __iomem *prm_base;
 extern u16 prm_features;
 extern void omap2_set_globals_prm(void __iomem *prm);
-int of_prcm_init(void);
+int omap_prcm_init(void);
 # endif
 
 /*
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 9f736d2..f155aaf 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -590,7 +590,13 @@ static const struct of_device_id omap_prcm_dt_match_table[] = {
 	{ }
 };
 
-int __init of_prcm_init(void)
+/**
+ * omap_prcm_init - low level init for the PRCM drivers
+ *
+ * Initializes the low level clock infrastructure for PRCM drivers.
+ * Returns 0 in success, negative error value in failure.
+ */
+int __init omap_prcm_init(void)
 {
 	return omap2_clk_provider_init(omap_prcm_dt_match_table);
 }
-- 
1.7.9.5

[PATCH 02/23] ARM: OMAP2+: PRCM: rename of_prcm_init to omap_prcm_init

[Tero Kristo]

This avoids conflicts in the global namespace, and is more descriptive
of the purpose anyway.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/io.c         |    2 +-
 arch/arm/mach-omap2/prm.h        |    2 +-
 arch/arm/mach-omap2/prm_common.c |    8 +++++++-
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 4fc8383..4f269be 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -731,7 +731,7 @@ int __init omap_clk_init(void)
 
 	ti_clk_init_features();
 
-	ret = of_prcm_init();
+	ret = omap_prcm_init();
 	if (ret)
 		return ret;
 
diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index 77752e4..a38eaeb 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -19,7 +19,7 @@
 extern void __iomem *prm_base;
 extern u16 prm_features;
 extern void omap2_set_globals_prm(void __iomem *prm);
-int of_prcm_init(void);
+int omap_prcm_init(void);
 # endif
 
 /*
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 9f736d2..f155aaf 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -590,7 +590,13 @@ static const struct of_device_id omap_prcm_dt_match_table[] = {
 	{ }
 };
 
-int __init of_prcm_init(void)
+/**
+ * omap_prcm_init - low level init for the PRCM drivers
+ *
+ * Initializes the low level clock infrastructure for PRCM drivers.
+ * Returns 0 in success, negative error value in failure.
+ */
+int __init omap_prcm_init(void)
 {
 	return omap2_clk_provider_init(omap_prcm_dt_match_table);
 }
-- 
1.7.9.5

[PATCH 03/23] ARM: OMAP2+: PRCM: split PRCM module init to their own driver files

[Tero Kristo]

Splits the clock related provider module inits under their own driver files.
Previously this was done for all modules under the common PRM driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/cm.h         |    1 +
 arch/arm/mach-omap2/cm_common.c  |   24 ++++++++++++++++++++++++
 arch/arm/mach-omap2/control.c    |   20 ++++++++++++++++++++
 arch/arm/mach-omap2/control.h    |    1 +
 arch/arm/mach-omap2/io.c         |    4 ++++
 arch/arm/mach-omap2/prm_common.c |   20 ++++++++------------
 6 files changed, 58 insertions(+), 12 deletions(-)

diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h
index 6222e87..748ac33 100644
--- a/arch/arm/mach-omap2/cm.h
+++ b/arch/arm/mach-omap2/cm.h
@@ -70,6 +70,7 @@ int omap_cm_module_enable(u8 mode, u8 part, u16 inst, u16 clkctrl_offs);
 int omap_cm_module_disable(u8 part, u16 inst, u16 clkctrl_offs);
 extern int cm_register(struct cm_ll_data *cld);
 extern int cm_unregister(struct cm_ll_data *cld);
+int omap_cm_init(void);
 
 # endif
 
diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
index 8fe02fce..f0a44aa 100644
--- a/arch/arm/mach-omap2/cm_common.c
+++ b/arch/arm/mach-omap2/cm_common.c
@@ -15,10 +15,12 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/bug.h>
+#include <linux/of.h>
 
 #include "cm2xxx.h"
 #include "cm3xxx.h"
 #include "cm44xx.h"
+#include "clock.h"
 
 /*
  * cm_ll_data: function pointers to SoC-specific implementations of
@@ -212,3 +214,25 @@ int cm_unregister(struct cm_ll_data *cld)
 
 	return 0;
 }
+
+static struct of_device_id omap_cm_dt_match_table[] = {
+	{ .compatible = "ti,omap3-cm" },
+	{ .compatible = "ti,omap4-cm1" },
+	{ .compatible = "ti,omap4-cm2" },
+	{ .compatible = "ti,omap5-cm-core-aon" },
+	{ .compatible = "ti,omap5-cm-core" },
+	{ .compatible = "ti,dra7-cm-core-aon" },
+	{ .compatible = "ti,dra7-cm-core" },
+	{ }
+};
+
+/**
+ * omap_cm_init - low level init for the CM drivers
+ *
+ * Initializes the low level clock infrastructure for CM drivers.
+ * Returns 0 in success, negative error value in failure.
+ */
+int __init omap_cm_init(void)
+{
+	return omap2_clk_provider_init(omap_cm_dt_match_table);
+}
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index da041b4..a53341f 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -25,6 +25,7 @@
 #include "sdrc.h"
 #include "pm.h"
 #include "control.h"
+#include "clock.h"
 
 /* Used by omap3_ctrl_save_padconf() */
 #define START_PADCONF_SAVE		0x2
@@ -611,3 +612,22 @@ void __init omap3_ctrl_init(void)
 	omap3_ctrl_setup_d2d_padconf();
 }
 #endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */
+
+static struct of_device_id omap_scrm_dt_match_table[] = {
+	{ .compatible = "ti,am3-scrm" },
+	{ .compatible = "ti,am4-scrm" },
+	{ .compatible = "ti,omap2-scrm" },
+	{ .compatible = "ti,omap3-scrm" },
+	{ }
+};
+
+/**
+ * omap_control_init - low level init for the control driver
+ *
+ * Initializes the low level clock infrastructure for control driver.
+ * Returns 0 in success, negative error value in failure.
+ */
+int __init omap_control_init(void)
+{
+	return omap2_clk_provider_init(omap_scrm_dt_match_table);
+}
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index a3c0133..8a9d97d7 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -456,6 +456,7 @@ extern void omap_ctrl_write_dsp_boot_mode(u8 bootmode);
 extern void omap3630_ctrl_disable_rta(void);
 extern int omap3_ctrl_save_padconf(void);
 void omap3_ctrl_init(void);
+int omap_control_init(void);
 extern void omap2_set_globals_control(void __iomem *ctrl,
 				      void __iomem *ctrl_pad);
 #else
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 4f269be..ec2ace0 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -731,6 +731,10 @@ int __init omap_clk_init(void)
 
 	ti_clk_init_features();
 
+	ret = omap_control_init();
+	if (ret)
+		return ret;
+
 	ret = omap_prcm_init();
 	if (ret)
 		return ret;
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index f155aaf..52746ea 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -35,6 +35,7 @@
 #include "prm44xx.h"
 #include "common.h"
 #include "clock.h"
+#include "cm.h"
 
 /*
  * OMAP_PRCM_MAX_NR_PENDING_REG: maximum number of PRM_IRQ*_MPU regs
@@ -568,25 +569,14 @@ int prm_unregister(struct prm_ll_data *pld)
 
 static const struct of_device_id omap_prcm_dt_match_table[] = {
 	{ .compatible = "ti,am3-prcm" },
-	{ .compatible = "ti,am3-scrm" },
 	{ .compatible = "ti,am4-prcm" },
-	{ .compatible = "ti,am4-scrm" },
 	{ .compatible = "ti,omap2-prcm" },
-	{ .compatible = "ti,omap2-scrm" },
 	{ .compatible = "ti,omap3-prm" },
-	{ .compatible = "ti,omap3-cm" },
-	{ .compatible = "ti,omap3-scrm" },
-	{ .compatible = "ti,omap4-cm1" },
 	{ .compatible = "ti,omap4-prm" },
-	{ .compatible = "ti,omap4-cm2" },
 	{ .compatible = "ti,omap4-scrm" },
 	{ .compatible = "ti,omap5-prm" },
-	{ .compatible = "ti,omap5-cm-core-aon" },
 	{ .compatible = "ti,omap5-scrm" },
-	{ .compatible = "ti,omap5-cm-core" },
 	{ .compatible = "ti,dra7-prm" },
-	{ .compatible = "ti,dra7-cm-core-aon" },
-	{ .compatible = "ti,dra7-cm-core" },
 	{ }
 };
 
@@ -598,7 +588,13 @@ static const struct of_device_id omap_prcm_dt_match_table[] = {
  */
 int __init omap_prcm_init(void)
 {
-	return omap2_clk_provider_init(omap_prcm_dt_match_table);
+	int ret;
+
+	ret = omap2_clk_provider_init(omap_prcm_dt_match_table);
+	if (ret)
+		return ret;
+
+	return omap_cm_init();
 }
 
 static int __init prm_late_init(void)
-- 
1.7.9.5

[PATCH 03/23] ARM: OMAP2+: PRCM: split PRCM module init to their own driver files

[Tero Kristo]

Splits the clock related provider module inits under their own driver files.
Previously this was done for all modules under the common PRM driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/cm.h         |    1 +
 arch/arm/mach-omap2/cm_common.c  |   24 ++++++++++++++++++++++++
 arch/arm/mach-omap2/control.c    |   20 ++++++++++++++++++++
 arch/arm/mach-omap2/control.h    |    1 +
 arch/arm/mach-omap2/io.c         |    4 ++++
 arch/arm/mach-omap2/prm_common.c |   20 ++++++++------------
 6 files changed, 58 insertions(+), 12 deletions(-)

diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h
index 6222e87..748ac33 100644
--- a/arch/arm/mach-omap2/cm.h
+++ b/arch/arm/mach-omap2/cm.h
@@ -70,6 +70,7 @@ int omap_cm_module_enable(u8 mode, u8 part, u16 inst, u16 clkctrl_offs);
 int omap_cm_module_disable(u8 part, u16 inst, u16 clkctrl_offs);
 extern int cm_register(struct cm_ll_data *cld);
 extern int cm_unregister(struct cm_ll_data *cld);
+int omap_cm_init(void);
 
 # endif
 
diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
index 8fe02fce..f0a44aa 100644
--- a/arch/arm/mach-omap2/cm_common.c
+++ b/arch/arm/mach-omap2/cm_common.c
@@ -15,10 +15,12 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/bug.h>
+#include <linux/of.h>
 
 #include "cm2xxx.h"
 #include "cm3xxx.h"
 #include "cm44xx.h"
+#include "clock.h"
 
 /*
  * cm_ll_data: function pointers to SoC-specific implementations of
@@ -212,3 +214,25 @@ int cm_unregister(struct cm_ll_data *cld)
 
 	return 0;
 }
+
+static struct of_device_id omap_cm_dt_match_table[] = {
+	{ .compatible = "ti,omap3-cm" },
+	{ .compatible = "ti,omap4-cm1" },
+	{ .compatible = "ti,omap4-cm2" },
+	{ .compatible = "ti,omap5-cm-core-aon" },
+	{ .compatible = "ti,omap5-cm-core" },
+	{ .compatible = "ti,dra7-cm-core-aon" },
+	{ .compatible = "ti,dra7-cm-core" },
+	{ }
+};
+
+/**
+ * omap_cm_init - low level init for the CM drivers
+ *
+ * Initializes the low level clock infrastructure for CM drivers.
+ * Returns 0 in success, negative error value in failure.
+ */
+int __init omap_cm_init(void)
+{
+	return omap2_clk_provider_init(omap_cm_dt_match_table);
+}
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index da041b4..a53341f 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -25,6 +25,7 @@
 #include "sdrc.h"
 #include "pm.h"
 #include "control.h"
+#include "clock.h"
 
 /* Used by omap3_ctrl_save_padconf() */
 #define START_PADCONF_SAVE		0x2
@@ -611,3 +612,22 @@ void __init omap3_ctrl_init(void)
 	omap3_ctrl_setup_d2d_padconf();
 }
 #endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */
+
+static struct of_device_id omap_scrm_dt_match_table[] = {
+	{ .compatible = "ti,am3-scrm" },
+	{ .compatible = "ti,am4-scrm" },
+	{ .compatible = "ti,omap2-scrm" },
+	{ .compatible = "ti,omap3-scrm" },
+	{ }
+};
+
+/**
+ * omap_control_init - low level init for the control driver
+ *
+ * Initializes the low level clock infrastructure for control driver.
+ * Returns 0 in success, negative error value in failure.
+ */
+int __init omap_control_init(void)
+{
+	return omap2_clk_provider_init(omap_scrm_dt_match_table);
+}
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index a3c0133..8a9d97d7 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -456,6 +456,7 @@ extern void omap_ctrl_write_dsp_boot_mode(u8 bootmode);
 extern void omap3630_ctrl_disable_rta(void);
 extern int omap3_ctrl_save_padconf(void);
 void omap3_ctrl_init(void);
+int omap_control_init(void);
 extern void omap2_set_globals_control(void __iomem *ctrl,
 				      void __iomem *ctrl_pad);
 #else
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 4f269be..ec2ace0 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -731,6 +731,10 @@ int __init omap_clk_init(void)
 
 	ti_clk_init_features();
 
+	ret = omap_control_init();
+	if (ret)
+		return ret;
+
 	ret = omap_prcm_init();
 	if (ret)
 		return ret;
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index f155aaf..52746ea 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -35,6 +35,7 @@
 #include "prm44xx.h"
 #include "common.h"
 #include "clock.h"
+#include "cm.h"
 
 /*
  * OMAP_PRCM_MAX_NR_PENDING_REG: maximum number of PRM_IRQ*_MPU regs
@@ -568,25 +569,14 @@ int prm_unregister(struct prm_ll_data *pld)
 
 static const struct of_device_id omap_prcm_dt_match_table[] = {
 	{ .compatible = "ti,am3-prcm" },
-	{ .compatible = "ti,am3-scrm" },
 	{ .compatible = "ti,am4-prcm" },
-	{ .compatible = "ti,am4-scrm" },
 	{ .compatible = "ti,omap2-prcm" },
-	{ .compatible = "ti,omap2-scrm" },
 	{ .compatible = "ti,omap3-prm" },
-	{ .compatible = "ti,omap3-cm" },
-	{ .compatible = "ti,omap3-scrm" },
-	{ .compatible = "ti,omap4-cm1" },
 	{ .compatible = "ti,omap4-prm" },
-	{ .compatible = "ti,omap4-cm2" },
 	{ .compatible = "ti,omap4-scrm" },
 	{ .compatible = "ti,omap5-prm" },
-	{ .compatible = "ti,omap5-cm-core-aon" },
 	{ .compatible = "ti,omap5-scrm" },
-	{ .compatible = "ti,omap5-cm-core" },
 	{ .compatible = "ti,dra7-prm" },
-	{ .compatible = "ti,dra7-cm-core-aon" },
-	{ .compatible = "ti,dra7-cm-core" },
 	{ }
 };
 
@@ -598,7 +588,13 @@ static const struct of_device_id omap_prcm_dt_match_table[] = {
  */
 int __init omap_prcm_init(void)
 {
-	return omap2_clk_provider_init(omap_prcm_dt_match_table);
+	int ret;
+
+	ret = omap2_clk_provider_init(omap_prcm_dt_match_table);
+	if (ret)
+		return ret;
+
+	return omap_cm_init();
 }
 
 static int __init prm_late_init(void)
-- 
1.7.9.5

[PATCH 04/23] ARM: OMAP24xx: clock: remove unused apll code

[Tero Kristo]

APLL clock type is no longer needed as the legacy clock support is removed.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/Makefile        |    1 -
 arch/arm/mach-omap2/clkt2xxx_apll.c |  142 -----------------------------------
 arch/arm/mach-omap2/clock2xxx.h     |   11 ---
 3 files changed, 154 deletions(-)
 delete mode 100644 arch/arm/mach-omap2/clkt2xxx_apll.c

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 3b653b3..ba35217 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -181,7 +181,6 @@ obj-$(CONFIG_SOC_DRA7XX)		+= clockdomains7xx_data.o
 obj-$(CONFIG_ARCH_OMAP2)		+= $(clock-common) clock2xxx.o
 obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_dpllcore.o
 obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_virt_prcm_set.o
-obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_apll.o
 obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_dpll.o clkt_iclk.o
 obj-$(CONFIG_SOC_OMAP2430)		+= clock2430.o
 obj-$(CONFIG_ARCH_OMAP3)		+= $(clock-common) clock3xxx.o
diff --git a/arch/arm/mach-omap2/clkt2xxx_apll.c b/arch/arm/mach-omap2/clkt2xxx_apll.c
deleted file mode 100644
index c78e893..0000000
--- a/arch/arm/mach-omap2/clkt2xxx_apll.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * OMAP2xxx APLL clock control functions
- *
- * Copyright (C) 2005-2008 Texas Instruments, Inc.
- * Copyright (C) 2004-2010 Nokia Corporation
- *
- * Contacts:
- * Richard Woodruff <r-woodruff2@ti.com>
- * Paul Walmsley
- *
- * Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
- * Gordon McNutt and RidgeRun, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#undef DEBUG
-
-#include <linux/kernel.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-
-
-#include "clock.h"
-#include "clock2xxx.h"
-#include "cm2xxx.h"
-#include "cm-regbits-24xx.h"
-
-/* CM_CLKEN_PLL.EN_{54,96}M_PLL options (24XX) */
-#define EN_APLL_STOPPED			0
-#define EN_APLL_LOCKED			3
-
-/* CM_CLKSEL1_PLL.APLLS_CLKIN options (24XX) */
-#define APLLS_CLKIN_19_2MHZ		0
-#define APLLS_CLKIN_13MHZ		2
-#define APLLS_CLKIN_12MHZ		3
-
-/* Private functions */
-
-/**
- * omap2xxx_clk_apll_locked - is the APLL locked?
- * @hw: struct clk_hw * of the APLL to check
- *
- * If the APLL IP block referred to by @hw indicates that it's locked,
- * return true; otherwise, return false.
- */
-static bool omap2xxx_clk_apll_locked(struct clk_hw *hw)
-{
-	struct clk_hw_omap *clk = to_clk_hw_omap(hw);
-	u32 r, apll_mask;
-
-	apll_mask = EN_APLL_LOCKED << clk->enable_bit;
-
-	r = omap2xxx_cm_get_pll_status();
-
-	return ((r & apll_mask) == apll_mask) ? true : false;
-}
-
-int omap2_clk_apll96_enable(struct clk_hw *hw)
-{
-	return omap2xxx_cm_apll96_enable();
-}
-
-int omap2_clk_apll54_enable(struct clk_hw *hw)
-{
-	return omap2xxx_cm_apll54_enable();
-}
-
-static void _apll96_allow_idle(struct clk_hw_omap *clk)
-{
-	omap2xxx_cm_set_apll96_auto_low_power_stop();
-}
-
-static void _apll96_deny_idle(struct clk_hw_omap *clk)
-{
-	omap2xxx_cm_set_apll96_disable_autoidle();
-}
-
-static void _apll54_allow_idle(struct clk_hw_omap *clk)
-{
-	omap2xxx_cm_set_apll54_auto_low_power_stop();
-}
-
-static void _apll54_deny_idle(struct clk_hw_omap *clk)
-{
-	omap2xxx_cm_set_apll54_disable_autoidle();
-}
-
-void omap2_clk_apll96_disable(struct clk_hw *hw)
-{
-	omap2xxx_cm_apll96_disable();
-}
-
-void omap2_clk_apll54_disable(struct clk_hw *hw)
-{
-	omap2xxx_cm_apll54_disable();
-}
-
-unsigned long omap2_clk_apll54_recalc(struct clk_hw *hw,
-				      unsigned long parent_rate)
-{
-	return (omap2xxx_clk_apll_locked(hw)) ? 54000000 : 0;
-}
-
-unsigned long omap2_clk_apll96_recalc(struct clk_hw *hw,
-				      unsigned long parent_rate)
-{
-	return (omap2xxx_clk_apll_locked(hw)) ? 96000000 : 0;
-}
-
-/* Public data */
-const struct clk_hw_omap_ops clkhwops_apll54 = {
-	.allow_idle	= _apll54_allow_idle,
-	.deny_idle	= _apll54_deny_idle,
-};
-
-const struct clk_hw_omap_ops clkhwops_apll96 = {
-	.allow_idle	= _apll96_allow_idle,
-	.deny_idle	= _apll96_deny_idle,
-};
-
-/* Public functions */
-
-u32 omap2xxx_get_apll_clkin(void)
-{
-	u32 aplls, srate = 0;
-
-	aplls = omap2xxx_cm_get_pll_config();
-	aplls &= OMAP24XX_APLLS_CLKIN_MASK;
-	aplls >>= OMAP24XX_APLLS_CLKIN_SHIFT;
-
-	if (aplls == APLLS_CLKIN_19_2MHZ)
-		srate = 19200000;
-	else if (aplls == APLLS_CLKIN_13MHZ)
-		srate = 13000000;
-	else if (aplls == APLLS_CLKIN_12MHZ)
-		srate = 12000000;
-
-	return srate;
-}
-
diff --git a/arch/arm/mach-omap2/clock2xxx.h b/arch/arm/mach-omap2/clock2xxx.h
index a090225..125c376 100644
--- a/arch/arm/mach-omap2/clock2xxx.h
+++ b/arch/arm/mach-omap2/clock2xxx.h
@@ -22,12 +22,7 @@ unsigned long omap2xxx_sys_clk_recalc(struct clk_hw *clk,
 unsigned long omap2_osc_clk_recalc(struct clk_hw *clk,
 				   unsigned long parent_rate);
 void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw);
-unsigned long omap2_clk_apll54_recalc(struct clk_hw *hw,
-				      unsigned long parent_rate);
-unsigned long omap2_clk_apll96_recalc(struct clk_hw *hw,
-				      unsigned long parent_rate);
 unsigned long omap2xxx_clk_get_core_rate(void);
-u32 omap2xxx_get_apll_clkin(void);
 u32 omap2xxx_get_sysclkdiv(void);
 void omap2xxx_clk_prepare_for_reboot(void);
 void omap2xxx_clkt_vps_check_bootloader_rates(void);
@@ -46,11 +41,5 @@ int omap2430_clk_init(void);
 #endif
 
 extern struct clk_hw *dclk_hw;
-int omap2_enable_osc_ck(struct clk_hw *hw);
-void omap2_disable_osc_ck(struct clk_hw *hw);
-int omap2_clk_apll96_enable(struct clk_hw *hw);
-int omap2_clk_apll54_enable(struct clk_hw *hw);
-void omap2_clk_apll96_disable(struct clk_hw *hw);
-void omap2_clk_apll54_disable(struct clk_hw *hw);
 
 #endif
-- 
1.7.9.5

[PATCH 04/23] ARM: OMAP24xx: clock: remove unused apll code

[Tero Kristo]

APLL clock type is no longer needed as the legacy clock support is removed.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/Makefile        |    1 -
 arch/arm/mach-omap2/clkt2xxx_apll.c |  142 -----------------------------------
 arch/arm/mach-omap2/clock2xxx.h     |   11 ---
 3 files changed, 154 deletions(-)
 delete mode 100644 arch/arm/mach-omap2/clkt2xxx_apll.c

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 3b653b3..ba35217 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -181,7 +181,6 @@ obj-$(CONFIG_SOC_DRA7XX)		+= clockdomains7xx_data.o
 obj-$(CONFIG_ARCH_OMAP2)		+= $(clock-common) clock2xxx.o
 obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_dpllcore.o
 obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_virt_prcm_set.o
-obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_apll.o
 obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_dpll.o clkt_iclk.o
 obj-$(CONFIG_SOC_OMAP2430)		+= clock2430.o
 obj-$(CONFIG_ARCH_OMAP3)		+= $(clock-common) clock3xxx.o
diff --git a/arch/arm/mach-omap2/clkt2xxx_apll.c b/arch/arm/mach-omap2/clkt2xxx_apll.c
deleted file mode 100644
index c78e893..0000000
--- a/arch/arm/mach-omap2/clkt2xxx_apll.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * OMAP2xxx APLL clock control functions
- *
- * Copyright (C) 2005-2008 Texas Instruments, Inc.
- * Copyright (C) 2004-2010 Nokia Corporation
- *
- * Contacts:
- * Richard Woodruff <r-woodruff2@ti.com>
- * Paul Walmsley
- *
- * Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
- * Gordon McNutt and RidgeRun, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#undef DEBUG
-
-#include <linux/kernel.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-
-
-#include "clock.h"
-#include "clock2xxx.h"
-#include "cm2xxx.h"
-#include "cm-regbits-24xx.h"
-
-/* CM_CLKEN_PLL.EN_{54,96}M_PLL options (24XX) */
-#define EN_APLL_STOPPED			0
-#define EN_APLL_LOCKED			3
-
-/* CM_CLKSEL1_PLL.APLLS_CLKIN options (24XX) */
-#define APLLS_CLKIN_19_2MHZ		0
-#define APLLS_CLKIN_13MHZ		2
-#define APLLS_CLKIN_12MHZ		3
-
-/* Private functions */
-
-/**
- * omap2xxx_clk_apll_locked - is the APLL locked?
- * @hw: struct clk_hw * of the APLL to check
- *
- * If the APLL IP block referred to by @hw indicates that it's locked,
- * return true; otherwise, return false.
- */
-static bool omap2xxx_clk_apll_locked(struct clk_hw *hw)
-{
-	struct clk_hw_omap *clk = to_clk_hw_omap(hw);
-	u32 r, apll_mask;
-
-	apll_mask = EN_APLL_LOCKED << clk->enable_bit;
-
-	r = omap2xxx_cm_get_pll_status();
-
-	return ((r & apll_mask) == apll_mask) ? true : false;
-}
-
-int omap2_clk_apll96_enable(struct clk_hw *hw)
-{
-	return omap2xxx_cm_apll96_enable();
-}
-
-int omap2_clk_apll54_enable(struct clk_hw *hw)
-{
-	return omap2xxx_cm_apll54_enable();
-}
-
-static void _apll96_allow_idle(struct clk_hw_omap *clk)
-{
-	omap2xxx_cm_set_apll96_auto_low_power_stop();
-}
-
-static void _apll96_deny_idle(struct clk_hw_omap *clk)
-{
-	omap2xxx_cm_set_apll96_disable_autoidle();
-}
-
-static void _apll54_allow_idle(struct clk_hw_omap *clk)
-{
-	omap2xxx_cm_set_apll54_auto_low_power_stop();
-}
-
-static void _apll54_deny_idle(struct clk_hw_omap *clk)
-{
-	omap2xxx_cm_set_apll54_disable_autoidle();
-}
-
-void omap2_clk_apll96_disable(struct clk_hw *hw)
-{
-	omap2xxx_cm_apll96_disable();
-}
-
-void omap2_clk_apll54_disable(struct clk_hw *hw)
-{
-	omap2xxx_cm_apll54_disable();
-}
-
-unsigned long omap2_clk_apll54_recalc(struct clk_hw *hw,
-				      unsigned long parent_rate)
-{
-	return (omap2xxx_clk_apll_locked(hw)) ? 54000000 : 0;
-}
-
-unsigned long omap2_clk_apll96_recalc(struct clk_hw *hw,
-				      unsigned long parent_rate)
-{
-	return (omap2xxx_clk_apll_locked(hw)) ? 96000000 : 0;
-}
-
-/* Public data */
-const struct clk_hw_omap_ops clkhwops_apll54 = {
-	.allow_idle	= _apll54_allow_idle,
-	.deny_idle	= _apll54_deny_idle,
-};
-
-const struct clk_hw_omap_ops clkhwops_apll96 = {
-	.allow_idle	= _apll96_allow_idle,
-	.deny_idle	= _apll96_deny_idle,
-};
-
-/* Public functions */
-
-u32 omap2xxx_get_apll_clkin(void)
-{
-	u32 aplls, srate = 0;
-
-	aplls = omap2xxx_cm_get_pll_config();
-	aplls &= OMAP24XX_APLLS_CLKIN_MASK;
-	aplls >>= OMAP24XX_APLLS_CLKIN_SHIFT;
-
-	if (aplls == APLLS_CLKIN_19_2MHZ)
-		srate = 19200000;
-	else if (aplls == APLLS_CLKIN_13MHZ)
-		srate = 13000000;
-	else if (aplls == APLLS_CLKIN_12MHZ)
-		srate = 12000000;
-
-	return srate;
-}
-
diff --git a/arch/arm/mach-omap2/clock2xxx.h b/arch/arm/mach-omap2/clock2xxx.h
index a090225..125c376 100644
--- a/arch/arm/mach-omap2/clock2xxx.h
+++ b/arch/arm/mach-omap2/clock2xxx.h
@@ -22,12 +22,7 @@ unsigned long omap2xxx_sys_clk_recalc(struct clk_hw *clk,
 unsigned long omap2_osc_clk_recalc(struct clk_hw *clk,
 				   unsigned long parent_rate);
 void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw);
-unsigned long omap2_clk_apll54_recalc(struct clk_hw *hw,
-				      unsigned long parent_rate);
-unsigned long omap2_clk_apll96_recalc(struct clk_hw *hw,
-				      unsigned long parent_rate);
 unsigned long omap2xxx_clk_get_core_rate(void);
-u32 omap2xxx_get_apll_clkin(void);
 u32 omap2xxx_get_sysclkdiv(void);
 void omap2xxx_clk_prepare_for_reboot(void);
 void omap2xxx_clkt_vps_check_bootloader_rates(void);
@@ -46,11 +41,5 @@ int omap2430_clk_init(void);
 #endif
 
 extern struct clk_hw *dclk_hw;
-int omap2_enable_osc_ck(struct clk_hw *hw);
-void omap2_disable_osc_ck(struct clk_hw *hw);
-int omap2_clk_apll96_enable(struct clk_hw *hw);
-int omap2_clk_apll54_enable(struct clk_hw *hw);
-void omap2_clk_apll96_disable(struct clk_hw *hw);
-void omap2_clk_apll54_disable(struct clk_hw *hw);
 
 #endif
-- 
1.7.9.5

[PATCH 05/23] ARM: OMAP2: CM: remove unused PLL functions

[Tero Kristo]

omap2xxx_cm_get_pll_config and omap2xxx_cm_get_pll_status are not used
for anything, so remove these.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/cm2xxx.c |   10 ----------
 arch/arm/mach-omap2/cm2xxx.h |    2 --
 2 files changed, 12 deletions(-)

diff --git a/arch/arm/mach-omap2/cm2xxx.c b/arch/arm/mach-omap2/cm2xxx.c
index a96d901..ef62ac9 100644
--- a/arch/arm/mach-omap2/cm2xxx.c
+++ b/arch/arm/mach-omap2/cm2xxx.c
@@ -370,16 +370,6 @@ u32 omap2xxx_cm_get_core_pll_config(void)
 	return omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
 }
 
-u32 omap2xxx_cm_get_pll_config(void)
-{
-	return omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL1);
-}
-
-u32 omap2xxx_cm_get_pll_status(void)
-{
-	return omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN);
-}
-
 void omap2xxx_cm_set_mod_dividers(u32 mpu, u32 dsp, u32 gfx, u32 core, u32 mdm)
 {
 	u32 tmp;
diff --git a/arch/arm/mach-omap2/cm2xxx.h b/arch/arm/mach-omap2/cm2xxx.h
index c89502b..83b6c59 100644
--- a/arch/arm/mach-omap2/cm2xxx.h
+++ b/arch/arm/mach-omap2/cm2xxx.h
@@ -60,8 +60,6 @@ extern int omap2xxx_cm_fclks_active(void);
 extern int omap2xxx_cm_mpu_retention_allowed(void);
 extern u32 omap2xxx_cm_get_core_clk_src(void);
 extern u32 omap2xxx_cm_get_core_pll_config(void);
-extern u32 omap2xxx_cm_get_pll_config(void);
-extern u32 omap2xxx_cm_get_pll_status(void);
 extern void omap2xxx_cm_set_mod_dividers(u32 mpu, u32 dsp, u32 gfx, u32 core,
 					 u32 mdm);
 
-- 
1.7.9.5

[PATCH 05/23] ARM: OMAP2: CM: remove unused PLL functions

[Tero Kristo]

omap2xxx_cm_get_pll_config and omap2xxx_cm_get_pll_status are not used
for anything, so remove these.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/cm2xxx.c |   10 ----------
 arch/arm/mach-omap2/cm2xxx.h |    2 --
 2 files changed, 12 deletions(-)

diff --git a/arch/arm/mach-omap2/cm2xxx.c b/arch/arm/mach-omap2/cm2xxx.c
index a96d901..ef62ac9 100644
--- a/arch/arm/mach-omap2/cm2xxx.c
+++ b/arch/arm/mach-omap2/cm2xxx.c
@@ -370,16 +370,6 @@ u32 omap2xxx_cm_get_core_pll_config(void)
 	return omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
 }
 
-u32 omap2xxx_cm_get_pll_config(void)
-{
-	return omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL1);
-}
-
-u32 omap2xxx_cm_get_pll_status(void)
-{
-	return omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN);
-}
-
 void omap2xxx_cm_set_mod_dividers(u32 mpu, u32 dsp, u32 gfx, u32 core, u32 mdm)
 {
 	u32 tmp;
diff --git a/arch/arm/mach-omap2/cm2xxx.h b/arch/arm/mach-omap2/cm2xxx.h
index c89502b..83b6c59 100644
--- a/arch/arm/mach-omap2/cm2xxx.h
+++ b/arch/arm/mach-omap2/cm2xxx.h
@@ -60,8 +60,6 @@ extern int omap2xxx_cm_fclks_active(void);
 extern int omap2xxx_cm_mpu_retention_allowed(void);
 extern u32 omap2xxx_cm_get_core_clk_src(void);
 extern u32 omap2xxx_cm_get_core_pll_config(void);
-extern u32 omap2xxx_cm_get_pll_config(void);
-extern u32 omap2xxx_cm_get_pll_status(void);
 extern void omap2xxx_cm_set_mod_dividers(u32 mpu, u32 dsp, u32 gfx, u32 core,
 					 u32 mdm);
 
-- 
1.7.9.5

[PATCH 06/23] ARM: OMAP3: PRM: invert the wkst_mask for the prm_clear_mod_irqs

[Tero Kristo]

This makes the API the same as used with OMAP2, and makes it possible
to implement a generic driver API for the functionality.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/pm34xx.c  |   18 +++++++++---------
 arch/arm/mach-omap2/prm3xxx.c |    8 ++++----
 arch/arm/mach-omap2/prm3xxx.h |    2 +-
 3 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 175564c..990d802 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -137,9 +137,8 @@ static irqreturn_t _prcm_int_handle_io(int irq, void *unused)
 {
 	int c;
 
-	c = omap3xxx_prm_clear_mod_irqs(WKUP_MOD, 1,
-					~(OMAP3430_ST_IO_MASK |
-					  OMAP3430_ST_IO_CHAIN_MASK));
+	c = omap3xxx_prm_clear_mod_irqs(WKUP_MOD, 1, OMAP3430_ST_IO_MASK |
+					OMAP3430_ST_IO_CHAIN_MASK);
 
 	return c ? IRQ_HANDLED : IRQ_NONE;
 }
@@ -154,13 +153,14 @@ static irqreturn_t _prcm_int_handle_wakeup(int irq, void *unused)
 	 * IO events before parsing in mux code
 	 */
 	c = omap3xxx_prm_clear_mod_irqs(WKUP_MOD, 1,
-					OMAP3430_ST_IO_MASK |
-					OMAP3430_ST_IO_CHAIN_MASK);
-	c += omap3xxx_prm_clear_mod_irqs(CORE_MOD, 1, 0);
-	c += omap3xxx_prm_clear_mod_irqs(OMAP3430_PER_MOD, 1, 0);
+					~(OMAP3430_ST_IO_MASK |
+					  OMAP3430_ST_IO_CHAIN_MASK));
+	c += omap3xxx_prm_clear_mod_irqs(CORE_MOD, 1, ~0);
+	c += omap3xxx_prm_clear_mod_irqs(OMAP3430_PER_MOD, 1, ~0);
 	if (omap_rev() > OMAP3430_REV_ES1_0) {
-		c += omap3xxx_prm_clear_mod_irqs(CORE_MOD, 3, 0);
-		c += omap3xxx_prm_clear_mod_irqs(OMAP3430ES2_USBHOST_MOD, 1, 0);
+		c += omap3xxx_prm_clear_mod_irqs(CORE_MOD, 3, ~0);
+		c += omap3xxx_prm_clear_mod_irqs(OMAP3430ES2_USBHOST_MOD, 1,
+						 ~0);
 	}
 
 	return c ? IRQ_HANDLED : IRQ_NONE;
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index c5e00c6..3ec1ff4 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -217,7 +217,7 @@ static void omap3xxx_prm_restore_irqen(u32 *saved_mask)
  * omap3xxx_prm_clear_mod_irqs - clear wake-up events from PRCM interrupt
  * @module: PRM module to clear wakeups from
  * @regs: register set to clear, 1 or 3
- * @ignore_bits: wakeup status bits to ignore
+ * @wkst_mask: wkst bits to clear
  *
  * The purpose of this function is to clear any wake-up events latched
  * in the PRCM PM_WKST_x registers. It is possible that a wake-up event
@@ -226,7 +226,7 @@ static void omap3xxx_prm_restore_irqen(u32 *saved_mask)
  * that any peripheral wake-up events occurring while attempting to
  * clear the PM_WKST_x are detected and cleared.
  */
-int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 ignore_bits)
+int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
 {
 	u32 wkst, fclk, iclk, clken;
 	u16 wkst_off = (regs == 3) ? OMAP3430ES2_PM_WKST3 : PM_WKST1;
@@ -238,7 +238,7 @@ int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 ignore_bits)
 
 	wkst = omap2_prm_read_mod_reg(module, wkst_off);
 	wkst &= omap2_prm_read_mod_reg(module, grpsel_off);
-	wkst &= ~ignore_bits;
+	wkst &= wkst_mask;
 	if (wkst) {
 		iclk = omap2_cm_read_mod_reg(module, iclk_off);
 		fclk = omap2_cm_read_mod_reg(module, fclk_off);
@@ -254,7 +254,7 @@ int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 ignore_bits)
 			omap2_cm_set_mod_reg_bits(clken, module, fclk_off);
 			omap2_prm_write_mod_reg(wkst, module, wkst_off);
 			wkst = omap2_prm_read_mod_reg(module, wkst_off);
-			wkst &= ~ignore_bits;
+			wkst &= wkst_mask;
 			c++;
 		}
 		omap2_cm_write_mod_reg(iclk, module, iclk_off);
diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h
index cfde3f4..24edef6 100644
--- a/arch/arm/mach-omap2/prm3xxx.h
+++ b/arch/arm/mach-omap2/prm3xxx.h
@@ -146,7 +146,7 @@ extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
 extern int __init omap3xxx_prm_init(void);
 extern u32 omap3xxx_prm_get_reset_sources(void);
-int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 ignore_bits);
+int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask);
 void omap3xxx_prm_iva_idle(void);
 void omap3_prm_reset_modem(void);
 int omap3xxx_prm_clear_global_cold_reset(void);
-- 
1.7.9.5

[PATCH 06/23] ARM: OMAP3: PRM: invert the wkst_mask for the prm_clear_mod_irqs

[Tero Kristo]

This makes the API the same as used with OMAP2, and makes it possible
to implement a generic driver API for the functionality.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/pm34xx.c  |   18 +++++++++---------
 arch/arm/mach-omap2/prm3xxx.c |    8 ++++----
 arch/arm/mach-omap2/prm3xxx.h |    2 +-
 3 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 175564c..990d802 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -137,9 +137,8 @@ static irqreturn_t _prcm_int_handle_io(int irq, void *unused)
 {
 	int c;
 
-	c = omap3xxx_prm_clear_mod_irqs(WKUP_MOD, 1,
-					~(OMAP3430_ST_IO_MASK |
-					  OMAP3430_ST_IO_CHAIN_MASK));
+	c = omap3xxx_prm_clear_mod_irqs(WKUP_MOD, 1, OMAP3430_ST_IO_MASK |
+					OMAP3430_ST_IO_CHAIN_MASK);
 
 	return c ? IRQ_HANDLED : IRQ_NONE;
 }
@@ -154,13 +153,14 @@ static irqreturn_t _prcm_int_handle_wakeup(int irq, void *unused)
 	 * IO events before parsing in mux code
 	 */
 	c = omap3xxx_prm_clear_mod_irqs(WKUP_MOD, 1,
-					OMAP3430_ST_IO_MASK |
-					OMAP3430_ST_IO_CHAIN_MASK);
-	c += omap3xxx_prm_clear_mod_irqs(CORE_MOD, 1, 0);
-	c += omap3xxx_prm_clear_mod_irqs(OMAP3430_PER_MOD, 1, 0);
+					~(OMAP3430_ST_IO_MASK |
+					  OMAP3430_ST_IO_CHAIN_MASK));
+	c += omap3xxx_prm_clear_mod_irqs(CORE_MOD, 1, ~0);
+	c += omap3xxx_prm_clear_mod_irqs(OMAP3430_PER_MOD, 1, ~0);
 	if (omap_rev() > OMAP3430_REV_ES1_0) {
-		c += omap3xxx_prm_clear_mod_irqs(CORE_MOD, 3, 0);
-		c += omap3xxx_prm_clear_mod_irqs(OMAP3430ES2_USBHOST_MOD, 1, 0);
+		c += omap3xxx_prm_clear_mod_irqs(CORE_MOD, 3, ~0);
+		c += omap3xxx_prm_clear_mod_irqs(OMAP3430ES2_USBHOST_MOD, 1,
+						 ~0);
 	}
 
 	return c ? IRQ_HANDLED : IRQ_NONE;
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index c5e00c6..3ec1ff4 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -217,7 +217,7 @@ static void omap3xxx_prm_restore_irqen(u32 *saved_mask)
  * omap3xxx_prm_clear_mod_irqs - clear wake-up events from PRCM interrupt
  * @module: PRM module to clear wakeups from
  * @regs: register set to clear, 1 or 3
- * @ignore_bits: wakeup status bits to ignore
+ * @wkst_mask: wkst bits to clear
  *
  * The purpose of this function is to clear any wake-up events latched
  * in the PRCM PM_WKST_x registers. It is possible that a wake-up event
@@ -226,7 +226,7 @@ static void omap3xxx_prm_restore_irqen(u32 *saved_mask)
  * that any peripheral wake-up events occurring while attempting to
  * clear the PM_WKST_x are detected and cleared.
  */
-int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 ignore_bits)
+int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
 {
 	u32 wkst, fclk, iclk, clken;
 	u16 wkst_off = (regs == 3) ? OMAP3430ES2_PM_WKST3 : PM_WKST1;
@@ -238,7 +238,7 @@ int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 ignore_bits)
 
 	wkst = omap2_prm_read_mod_reg(module, wkst_off);
 	wkst &= omap2_prm_read_mod_reg(module, grpsel_off);
-	wkst &= ~ignore_bits;
+	wkst &= wkst_mask;
 	if (wkst) {
 		iclk = omap2_cm_read_mod_reg(module, iclk_off);
 		fclk = omap2_cm_read_mod_reg(module, fclk_off);
@@ -254,7 +254,7 @@ int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 ignore_bits)
 			omap2_cm_set_mod_reg_bits(clken, module, fclk_off);
 			omap2_prm_write_mod_reg(wkst, module, wkst_off);
 			wkst = omap2_prm_read_mod_reg(module, wkst_off);
-			wkst &= ~ignore_bits;
+			wkst &= wkst_mask;
 			c++;
 		}
 		omap2_cm_write_mod_reg(iclk, module, iclk_off);
diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h
index cfde3f4..24edef6 100644
--- a/arch/arm/mach-omap2/prm3xxx.h
+++ b/arch/arm/mach-omap2/prm3xxx.h
@@ -146,7 +146,7 @@ extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
 extern int __init omap3xxx_prm_init(void);
 extern u32 omap3xxx_prm_get_reset_sources(void);
-int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 ignore_bits);
+int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask);
 void omap3xxx_prm_iva_idle(void);
 void omap3_prm_reset_modem(void);
 int omap3xxx_prm_clear_global_cold_reset(void);
-- 
1.7.9.5

[PATCH 07/23] ARM: OMAP2+: PRM: add generic API for clear_mod_irqs

[Tero Kristo]

OMAP2/3 now use generic API for the prm_clear_mod_irqs, the SoC specific
implementation details are provided through prm_ll_data.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/pm24xx.c     |   24 +++++++++++-------------
 arch/arm/mach-omap2/pm34xx.c     |   18 ++++++++----------
 arch/arm/mach-omap2/prm.h        |    2 ++
 arch/arm/mach-omap2/prm2xxx.c    |    4 +++-
 arch/arm/mach-omap2/prm2xxx.h    |    2 --
 arch/arm/mach-omap2/prm3xxx.c    |    3 ++-
 arch/arm/mach-omap2/prm3xxx.h    |    1 -
 arch/arm/mach-omap2/prm_common.c |   21 +++++++++++++++++++++
 8 files changed, 47 insertions(+), 28 deletions(-)

diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index fe01c5a..b1aad7e 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -75,9 +75,9 @@ static int omap2_enter_full_retention(void)
 
 	/* Clear old wake-up events */
 	/* REVISIT: These write to reserved bits? */
-	omap2xxx_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
-	omap2xxx_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
-	omap2xxx_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, ~0);
+	omap_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
+	omap_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
+	omap_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, ~0);
 
 	pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_RET);
 	pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET);
@@ -104,18 +104,16 @@ no_sleep:
 	clk_enable(osc_ck);
 
 	/* clear CORE wake-up events */
-	omap2xxx_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
-	omap2xxx_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
+	omap_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
+	omap_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
 
 	/* wakeup domain events - bit 1: GPT1, bit5 GPIO */
-	omap2xxx_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, 0x4 | 0x1);
+	omap_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, 0x4 | 0x1);
 
 	/* MPU domain wake events */
-	omap2xxx_prm_clear_mod_irqs(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET,
-				    0x1);
+	omap_prm_clear_mod_irqs(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET, 0x1);
 
-	omap2xxx_prm_clear_mod_irqs(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET,
-				    0x20);
+	omap_prm_clear_mod_irqs(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET, 0x20);
 
 	pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_ON);
 	pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_ON);
@@ -143,9 +141,9 @@ static void omap2_enter_mpu_retention(void)
 	 * it is in retention mode. */
 	if (omap2_allow_mpu_retention()) {
 		/* REVISIT: These write to reserved bits? */
-		omap2xxx_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
-		omap2xxx_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
-		omap2xxx_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, ~0);
+		omap_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
+		omap_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
+		omap_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, ~0);
 
 		/* Try to enter MPU retention */
 		pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET);
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 990d802..2d9383b 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -137,8 +137,8 @@ static irqreturn_t _prcm_int_handle_io(int irq, void *unused)
 {
 	int c;
 
-	c = omap3xxx_prm_clear_mod_irqs(WKUP_MOD, 1, OMAP3430_ST_IO_MASK |
-					OMAP3430_ST_IO_CHAIN_MASK);
+	c = omap_prm_clear_mod_irqs(WKUP_MOD, 1, OMAP3430_ST_IO_MASK |
+				    OMAP3430_ST_IO_CHAIN_MASK);
 
 	return c ? IRQ_HANDLED : IRQ_NONE;
 }
@@ -152,15 +152,13 @@ static irqreturn_t _prcm_int_handle_wakeup(int irq, void *unused)
 	 * these are handled in a separate handler to avoid acking
 	 * IO events before parsing in mux code
 	 */
-	c = omap3xxx_prm_clear_mod_irqs(WKUP_MOD, 1,
-					~(OMAP3430_ST_IO_MASK |
-					  OMAP3430_ST_IO_CHAIN_MASK));
-	c += omap3xxx_prm_clear_mod_irqs(CORE_MOD, 1, ~0);
-	c += omap3xxx_prm_clear_mod_irqs(OMAP3430_PER_MOD, 1, ~0);
+	c = omap_prm_clear_mod_irqs(WKUP_MOD, 1, ~(OMAP3430_ST_IO_MASK |
+						   OMAP3430_ST_IO_CHAIN_MASK));
+	c += omap_prm_clear_mod_irqs(CORE_MOD, 1, ~0);
+	c += omap_prm_clear_mod_irqs(OMAP3430_PER_MOD, 1, ~0);
 	if (omap_rev() > OMAP3430_REV_ES1_0) {
-		c += omap3xxx_prm_clear_mod_irqs(CORE_MOD, 3, ~0);
-		c += omap3xxx_prm_clear_mod_irqs(OMAP3430ES2_USBHOST_MOD, 1,
-						 ~0);
+		c += omap_prm_clear_mod_irqs(CORE_MOD, 3, ~0);
+		c += omap_prm_clear_mod_irqs(OMAP3430ES2_USBHOST_MOD, 1, ~0);
 	}
 
 	return c ? IRQ_HANDLED : IRQ_NONE;
diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index a38eaeb..14d504b 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -145,6 +145,7 @@ struct prm_ll_data {
 	int (*is_hardreset_asserted)(u8 shift, u8 part, s16 prm_mod,
 				     u16 offset);
 	void (*reset_system)(void);
+	int (*clear_mod_irqs)(s16 module, u8 regs, u32 wkst_mask);
 };
 
 extern int prm_register(struct prm_ll_data *pld);
@@ -160,6 +161,7 @@ extern void prm_clear_context_loss_flags_old(u8 part, s16 inst, u16 idx);
 void omap_prm_reset_system(void);
 
 void omap_prm_reconfigure_io_chain(void);
+int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask);
 
 #endif
 
diff --git a/arch/arm/mach-omap2/prm2xxx.c b/arch/arm/mach-omap2/prm2xxx.c
index af0f152..bacb05e 100644
--- a/arch/arm/mach-omap2/prm2xxx.c
+++ b/arch/arm/mach-omap2/prm2xxx.c
@@ -123,13 +123,14 @@ static void omap2xxx_prm_dpll_reset(void)
  * Clears wakeup status bits for a given module, so that the device can
  * re-enter idle.
  */
-void omap2xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
+static int omap2xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
 {
 	u32 wkst;
 
 	wkst = omap2_prm_read_mod_reg(module, regs);
 	wkst &= wkst_mask;
 	omap2_prm_write_mod_reg(wkst, module, regs);
+	return 0;
 }
 
 int omap2xxx_clkdm_sleep(struct clockdomain *clkdm)
@@ -216,6 +217,7 @@ static struct prm_ll_data omap2xxx_prm_ll_data = {
 	.deassert_hardreset = &omap2_prm_deassert_hardreset,
 	.is_hardreset_asserted = &omap2_prm_is_hardreset_asserted,
 	.reset_system = &omap2xxx_prm_dpll_reset,
+	.clear_mod_irqs = &omap2xxx_prm_clear_mod_irqs,
 };
 
 int __init omap2xxx_prm_init(void)
diff --git a/arch/arm/mach-omap2/prm2xxx.h b/arch/arm/mach-omap2/prm2xxx.h
index 1d51643..9c91f4f 100644
--- a/arch/arm/mach-omap2/prm2xxx.h
+++ b/arch/arm/mach-omap2/prm2xxx.h
@@ -124,8 +124,6 @@
 extern int omap2xxx_clkdm_sleep(struct clockdomain *clkdm);
 extern int omap2xxx_clkdm_wakeup(struct clockdomain *clkdm);
 
-void omap2xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask);
-
 extern int __init omap2xxx_prm_init(void);
 
 #endif
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 3ec1ff4..95fed03 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -226,7 +226,7 @@ static void omap3xxx_prm_restore_irqen(u32 *saved_mask)
  * that any peripheral wake-up events occurring while attempting to
  * clear the PM_WKST_x are detected and cleared.
  */
-int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
+static int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
 {
 	u32 wkst, fclk, iclk, clken;
 	u16 wkst_off = (regs == 3) ? OMAP3430ES2_PM_WKST3 : PM_WKST1;
@@ -664,6 +664,7 @@ static struct prm_ll_data omap3xxx_prm_ll_data = {
 	.deassert_hardreset = &omap2_prm_deassert_hardreset,
 	.is_hardreset_asserted = &omap2_prm_is_hardreset_asserted,
 	.reset_system = &omap3xxx_prm_dpll3_reset,
+	.clear_mod_irqs = &omap3xxx_prm_clear_mod_irqs,
 };
 
 int __init omap3xxx_prm_init(void)
diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h
index 24edef6..17abe43 100644
--- a/arch/arm/mach-omap2/prm3xxx.h
+++ b/arch/arm/mach-omap2/prm3xxx.h
@@ -146,7 +146,6 @@ extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
 extern int __init omap3xxx_prm_init(void);
 extern u32 omap3xxx_prm_get_reset_sources(void);
-int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask);
 void omap3xxx_prm_iva_idle(void);
 void omap3_prm_reset_modem(void);
 int omap3xxx_prm_clear_global_cold_reset(void);
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 52746ea..772b8f6 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -523,6 +523,27 @@ void omap_prm_reset_system(void)
 }
 
 /**
+ * omap_prm_clear_mod_irqs - clear wake-up events from PRCM interrupt
+ * @module: PRM module to clear wakeups from
+ * @regs: register to clear
+ * @wkst_mask: wkst bits to clear
+ *
+ * Clears any wakeup events for the module and register set defined.
+ * Uses SoC specific implementation to do the actual wakeup status
+ * clearing.
+ */
+int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
+{
+	if (!prm_ll_data->clear_mod_irqs) {
+		WARN_ONCE(1, "prm: %s: no mapping function defined\n",
+			  __func__);
+		return -EINVAL;
+	}
+
+	return prm_ll_data->clear_mod_irqs(module, regs, wkst_mask);
+}
+
+/**
  * prm_register - register per-SoC low-level data with the PRM
  * @pld: low-level per-SoC OMAP PRM data & function pointers to register
  *
-- 
1.7.9.5

[PATCH 07/23] ARM: OMAP2+: PRM: add generic API for clear_mod_irqs

[Tero Kristo]

OMAP2/3 now use generic API for the prm_clear_mod_irqs, the SoC specific
implementation details are provided through prm_ll_data.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/pm24xx.c     |   24 +++++++++++-------------
 arch/arm/mach-omap2/pm34xx.c     |   18 ++++++++----------
 arch/arm/mach-omap2/prm.h        |    2 ++
 arch/arm/mach-omap2/prm2xxx.c    |    4 +++-
 arch/arm/mach-omap2/prm2xxx.h    |    2 --
 arch/arm/mach-omap2/prm3xxx.c    |    3 ++-
 arch/arm/mach-omap2/prm3xxx.h    |    1 -
 arch/arm/mach-omap2/prm_common.c |   21 +++++++++++++++++++++
 8 files changed, 47 insertions(+), 28 deletions(-)

diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index fe01c5a..b1aad7e 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -75,9 +75,9 @@ static int omap2_enter_full_retention(void)
 
 	/* Clear old wake-up events */
 	/* REVISIT: These write to reserved bits? */
-	omap2xxx_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
-	omap2xxx_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
-	omap2xxx_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, ~0);
+	omap_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
+	omap_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
+	omap_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, ~0);
 
 	pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_RET);
 	pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET);
@@ -104,18 +104,16 @@ no_sleep:
 	clk_enable(osc_ck);
 
 	/* clear CORE wake-up events */
-	omap2xxx_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
-	omap2xxx_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
+	omap_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
+	omap_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
 
 	/* wakeup domain events - bit 1: GPT1, bit5 GPIO */
-	omap2xxx_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, 0x4 | 0x1);
+	omap_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, 0x4 | 0x1);
 
 	/* MPU domain wake events */
-	omap2xxx_prm_clear_mod_irqs(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET,
-				    0x1);
+	omap_prm_clear_mod_irqs(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET, 0x1);
 
-	omap2xxx_prm_clear_mod_irqs(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET,
-				    0x20);
+	omap_prm_clear_mod_irqs(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET, 0x20);
 
 	pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_ON);
 	pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_ON);
@@ -143,9 +141,9 @@ static void omap2_enter_mpu_retention(void)
 	 * it is in retention mode. */
 	if (omap2_allow_mpu_retention()) {
 		/* REVISIT: These write to reserved bits? */
-		omap2xxx_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
-		omap2xxx_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
-		omap2xxx_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, ~0);
+		omap_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
+		omap_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
+		omap_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, ~0);
 
 		/* Try to enter MPU retention */
 		pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET);
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 990d802..2d9383b 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -137,8 +137,8 @@ static irqreturn_t _prcm_int_handle_io(int irq, void *unused)
 {
 	int c;
 
-	c = omap3xxx_prm_clear_mod_irqs(WKUP_MOD, 1, OMAP3430_ST_IO_MASK |
-					OMAP3430_ST_IO_CHAIN_MASK);
+	c = omap_prm_clear_mod_irqs(WKUP_MOD, 1, OMAP3430_ST_IO_MASK |
+				    OMAP3430_ST_IO_CHAIN_MASK);
 
 	return c ? IRQ_HANDLED : IRQ_NONE;
 }
@@ -152,15 +152,13 @@ static irqreturn_t _prcm_int_handle_wakeup(int irq, void *unused)
 	 * these are handled in a separate handler to avoid acking
 	 * IO events before parsing in mux code
 	 */
-	c = omap3xxx_prm_clear_mod_irqs(WKUP_MOD, 1,
-					~(OMAP3430_ST_IO_MASK |
-					  OMAP3430_ST_IO_CHAIN_MASK));
-	c += omap3xxx_prm_clear_mod_irqs(CORE_MOD, 1, ~0);
-	c += omap3xxx_prm_clear_mod_irqs(OMAP3430_PER_MOD, 1, ~0);
+	c = omap_prm_clear_mod_irqs(WKUP_MOD, 1, ~(OMAP3430_ST_IO_MASK |
+						   OMAP3430_ST_IO_CHAIN_MASK));
+	c += omap_prm_clear_mod_irqs(CORE_MOD, 1, ~0);
+	c += omap_prm_clear_mod_irqs(OMAP3430_PER_MOD, 1, ~0);
 	if (omap_rev() > OMAP3430_REV_ES1_0) {
-		c += omap3xxx_prm_clear_mod_irqs(CORE_MOD, 3, ~0);
-		c += omap3xxx_prm_clear_mod_irqs(OMAP3430ES2_USBHOST_MOD, 1,
-						 ~0);
+		c += omap_prm_clear_mod_irqs(CORE_MOD, 3, ~0);
+		c += omap_prm_clear_mod_irqs(OMAP3430ES2_USBHOST_MOD, 1, ~0);
 	}
 
 	return c ? IRQ_HANDLED : IRQ_NONE;
diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index a38eaeb..14d504b 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -145,6 +145,7 @@ struct prm_ll_data {
 	int (*is_hardreset_asserted)(u8 shift, u8 part, s16 prm_mod,
 				     u16 offset);
 	void (*reset_system)(void);
+	int (*clear_mod_irqs)(s16 module, u8 regs, u32 wkst_mask);
 };
 
 extern int prm_register(struct prm_ll_data *pld);
@@ -160,6 +161,7 @@ extern void prm_clear_context_loss_flags_old(u8 part, s16 inst, u16 idx);
 void omap_prm_reset_system(void);
 
 void omap_prm_reconfigure_io_chain(void);
+int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask);
 
 #endif
 
diff --git a/arch/arm/mach-omap2/prm2xxx.c b/arch/arm/mach-omap2/prm2xxx.c
index af0f152..bacb05e 100644
--- a/arch/arm/mach-omap2/prm2xxx.c
+++ b/arch/arm/mach-omap2/prm2xxx.c
@@ -123,13 +123,14 @@ static void omap2xxx_prm_dpll_reset(void)
  * Clears wakeup status bits for a given module, so that the device can
  * re-enter idle.
  */
-void omap2xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
+static int omap2xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
 {
 	u32 wkst;
 
 	wkst = omap2_prm_read_mod_reg(module, regs);
 	wkst &= wkst_mask;
 	omap2_prm_write_mod_reg(wkst, module, regs);
+	return 0;
 }
 
 int omap2xxx_clkdm_sleep(struct clockdomain *clkdm)
@@ -216,6 +217,7 @@ static struct prm_ll_data omap2xxx_prm_ll_data = {
 	.deassert_hardreset = &omap2_prm_deassert_hardreset,
 	.is_hardreset_asserted = &omap2_prm_is_hardreset_asserted,
 	.reset_system = &omap2xxx_prm_dpll_reset,
+	.clear_mod_irqs = &omap2xxx_prm_clear_mod_irqs,
 };
 
 int __init omap2xxx_prm_init(void)
diff --git a/arch/arm/mach-omap2/prm2xxx.h b/arch/arm/mach-omap2/prm2xxx.h
index 1d51643..9c91f4f 100644
--- a/arch/arm/mach-omap2/prm2xxx.h
+++ b/arch/arm/mach-omap2/prm2xxx.h
@@ -124,8 +124,6 @@
 extern int omap2xxx_clkdm_sleep(struct clockdomain *clkdm);
 extern int omap2xxx_clkdm_wakeup(struct clockdomain *clkdm);
 
-void omap2xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask);
-
 extern int __init omap2xxx_prm_init(void);
 
 #endif
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 3ec1ff4..95fed03 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -226,7 +226,7 @@ static void omap3xxx_prm_restore_irqen(u32 *saved_mask)
  * that any peripheral wake-up events occurring while attempting to
  * clear the PM_WKST_x are detected and cleared.
  */
-int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
+static int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
 {
 	u32 wkst, fclk, iclk, clken;
 	u16 wkst_off = (regs == 3) ? OMAP3430ES2_PM_WKST3 : PM_WKST1;
@@ -664,6 +664,7 @@ static struct prm_ll_data omap3xxx_prm_ll_data = {
 	.deassert_hardreset = &omap2_prm_deassert_hardreset,
 	.is_hardreset_asserted = &omap2_prm_is_hardreset_asserted,
 	.reset_system = &omap3xxx_prm_dpll3_reset,
+	.clear_mod_irqs = &omap3xxx_prm_clear_mod_irqs,
 };
 
 int __init omap3xxx_prm_init(void)
diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h
index 24edef6..17abe43 100644
--- a/arch/arm/mach-omap2/prm3xxx.h
+++ b/arch/arm/mach-omap2/prm3xxx.h
@@ -146,7 +146,6 @@ extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
 extern int __init omap3xxx_prm_init(void);
 extern u32 omap3xxx_prm_get_reset_sources(void);
-int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask);
 void omap3xxx_prm_iva_idle(void);
 void omap3_prm_reset_modem(void);
 int omap3xxx_prm_clear_global_cold_reset(void);
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 52746ea..772b8f6 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -523,6 +523,27 @@ void omap_prm_reset_system(void)
 }
 
 /**
+ * omap_prm_clear_mod_irqs - clear wake-up events from PRCM interrupt
+ * @module: PRM module to clear wakeups from
+ * @regs: register to clear
+ * @wkst_mask: wkst bits to clear
+ *
+ * Clears any wakeup events for the module and register set defined.
+ * Uses SoC specific implementation to do the actual wakeup status
+ * clearing.
+ */
+int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
+{
+	if (!prm_ll_data->clear_mod_irqs) {
+		WARN_ONCE(1, "prm: %s: no mapping function defined\n",
+			  __func__);
+		return -EINVAL;
+	}
+
+	return prm_ll_data->clear_mod_irqs(module, regs, wkst_mask);
+}
+
+/**
  * prm_register - register per-SoC low-level data with the PRM
  * @pld: low-level per-SoC OMAP PRM data & function pointers to register
  *
-- 
1.7.9.5

[PATCH 08/23] ARM: OMAP3+: PRM: remove prm_get_reset_sources declaration from headers

[Tero Kristo]

There is no implementation for this anywhere, so remove it from the header
files also.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/prm3xxx.h      |    1 -
 arch/arm/mach-omap2/prm44xx_54xx.h |    1 -
 2 files changed, 2 deletions(-)

diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h
index 17abe43..5a09a74 100644
--- a/arch/arm/mach-omap2/prm3xxx.h
+++ b/arch/arm/mach-omap2/prm3xxx.h
@@ -145,7 +145,6 @@ extern void omap3_prm_vcvp_write(u32 val, u8 offset);
 extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
 extern int __init omap3xxx_prm_init(void);
-extern u32 omap3xxx_prm_get_reset_sources(void);
 void omap3xxx_prm_iva_idle(void);
 void omap3_prm_reset_modem(void);
 int omap3xxx_prm_clear_global_cold_reset(void);
diff --git a/arch/arm/mach-omap2/prm44xx_54xx.h b/arch/arm/mach-omap2/prm44xx_54xx.h
index f751251..7143295 100644
--- a/arch/arm/mach-omap2/prm44xx_54xx.h
+++ b/arch/arm/mach-omap2/prm44xx_54xx.h
@@ -39,7 +39,6 @@ extern void omap4_prm_vcvp_write(u32 val, u8 offset);
 extern u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
 extern int __init omap44xx_prm_init(void);
-extern u32 omap44xx_prm_get_reset_sources(void);
 
 #endif
 
-- 
1.7.9.5

[PATCH 08/23] ARM: OMAP3+: PRM: remove prm_get_reset_sources declaration from headers

[Tero Kristo]

There is no implementation for this anywhere, so remove it from the header
files also.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/prm3xxx.h      |    1 -
 arch/arm/mach-omap2/prm44xx_54xx.h |    1 -
 2 files changed, 2 deletions(-)

diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h
index 17abe43..5a09a74 100644
--- a/arch/arm/mach-omap2/prm3xxx.h
+++ b/arch/arm/mach-omap2/prm3xxx.h
@@ -145,7 +145,6 @@ extern void omap3_prm_vcvp_write(u32 val, u8 offset);
 extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
 extern int __init omap3xxx_prm_init(void);
-extern u32 omap3xxx_prm_get_reset_sources(void);
 void omap3xxx_prm_iva_idle(void);
 void omap3_prm_reset_modem(void);
 int omap3xxx_prm_clear_global_cold_reset(void);
diff --git a/arch/arm/mach-omap2/prm44xx_54xx.h b/arch/arm/mach-omap2/prm44xx_54xx.h
index f751251..7143295 100644
--- a/arch/arm/mach-omap2/prm44xx_54xx.h
+++ b/arch/arm/mach-omap2/prm44xx_54xx.h
@@ -39,7 +39,6 @@ extern void omap4_prm_vcvp_write(u32 val, u8 offset);
 extern u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
 extern int __init omap44xx_prm_init(void);
-extern u32 omap44xx_prm_get_reset_sources(void);
 
 #endif
 
-- 
1.7.9.5

[PATCH 09/23] ARM: OMAP3+: PRM: add common APIs for prm_vp_check/clear_txdone

[Tero Kristo]

PRM driver now only exports a generic API for clearing / checking
VP txdone status.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/prm.h          |   14 ++++++++++++++
 arch/arm/mach-omap2/prm3xxx.c      |    6 ++++--
 arch/arm/mach-omap2/prm3xxx.h      |    4 ----
 arch/arm/mach-omap2/prm44xx.c      |    6 ++++--
 arch/arm/mach-omap2/prm44xx_54xx.h |    4 ----
 arch/arm/mach-omap2/prm_common.c   |   34 ++++++++++++++++++++++++++++++++++
 arch/arm/mach-omap2/vp.h           |    9 ---------
 arch/arm/mach-omap2/vp3xxx_data.c  |    4 ++--
 arch/arm/mach-omap2/vp44xx_data.c  |    4 ++--
 9 files changed, 60 insertions(+), 25 deletions(-)

diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index 14d504b..6521eaa 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -146,6 +146,8 @@ struct prm_ll_data {
 				     u16 offset);
 	void (*reset_system)(void);
 	int (*clear_mod_irqs)(s16 module, u8 regs, u32 wkst_mask);
+	u32 (*vp_check_txdone)(u8 vp_id);
+	void (*vp_clear_txdone)(u8 vp_id);
 };
 
 extern int prm_register(struct prm_ll_data *pld);
@@ -163,6 +165,18 @@ void omap_prm_reset_system(void);
 void omap_prm_reconfigure_io_chain(void);
 int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask);
 
+/*
+ * Voltage Processor (VP) identifiers
+ */
+#define OMAP3_VP_VDD_MPU_ID	0
+#define OMAP3_VP_VDD_CORE_ID	1
+#define OMAP4_VP_VDD_CORE_ID	0
+#define OMAP4_VP_VDD_IVA_ID	1
+#define OMAP4_VP_VDD_MPU_ID	2
+
+u32 omap_prm_vp_check_txdone(u8 vp_id);
+void omap_prm_vp_clear_txdone(u8 vp_id);
+
 #endif
 
 
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 95fed03..8993ab7 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -96,7 +96,7 @@ static struct omap3_vp omap3_vp[] = {
 
 #define MAX_VP_ID ARRAY_SIZE(omap3_vp);
 
-u32 omap3_prm_vp_check_txdone(u8 vp_id)
+static u32 omap3_prm_vp_check_txdone(u8 vp_id)
 {
 	struct omap3_vp *vp = &omap3_vp[vp_id];
 	u32 irqstatus;
@@ -106,7 +106,7 @@ u32 omap3_prm_vp_check_txdone(u8 vp_id)
 	return irqstatus & vp->tranxdone_status;
 }
 
-void omap3_prm_vp_clear_txdone(u8 vp_id)
+static void omap3_prm_vp_clear_txdone(u8 vp_id)
 {
 	struct omap3_vp *vp = &omap3_vp[vp_id];
 
@@ -665,6 +665,8 @@ static struct prm_ll_data omap3xxx_prm_ll_data = {
 	.is_hardreset_asserted = &omap2_prm_is_hardreset_asserted,
 	.reset_system = &omap3xxx_prm_dpll3_reset,
 	.clear_mod_irqs = &omap3xxx_prm_clear_mod_irqs,
+	.vp_check_txdone = &omap3_prm_vp_check_txdone,
+	.vp_clear_txdone = &omap3_prm_vp_clear_txdone,
 };
 
 int __init omap3xxx_prm_init(void)
diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h
index 5a09a74..55e4c89 100644
--- a/arch/arm/mach-omap2/prm3xxx.h
+++ b/arch/arm/mach-omap2/prm3xxx.h
@@ -132,10 +132,6 @@
 
 #ifndef __ASSEMBLER__
 
-/* OMAP3-specific VP functions */
-u32 omap3_prm_vp_check_txdone(u8 vp_id);
-void omap3_prm_vp_clear_txdone(u8 vp_id);
-
 /*
  * OMAP3 access functions for voltage controller (VC) and
  * voltage proccessor (VP) in the PRM.
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index cc170fb..0f0e49f 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -137,7 +137,7 @@ static struct omap4_vp omap4_vp[] = {
 	},
 };
 
-u32 omap4_prm_vp_check_txdone(u8 vp_id)
+static u32 omap4_prm_vp_check_txdone(u8 vp_id)
 {
 	struct omap4_vp *vp = &omap4_vp[vp_id];
 	u32 irqstatus;
@@ -148,7 +148,7 @@ u32 omap4_prm_vp_check_txdone(u8 vp_id)
 	return irqstatus & vp->tranxdone_status;
 }
 
-void omap4_prm_vp_clear_txdone(u8 vp_id)
+static void omap4_prm_vp_clear_txdone(u8 vp_id)
 {
 	struct omap4_vp *vp = &omap4_vp[vp_id];
 
@@ -698,6 +698,8 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
 	.deassert_hardreset	= omap4_prminst_deassert_hardreset,
 	.is_hardreset_asserted	= omap4_prminst_is_hardreset_asserted,
 	.reset_system		= omap4_prminst_global_warm_sw_reset,
+	.vp_check_txdone	= omap4_prm_vp_check_txdone,
+	.vp_clear_txdone	= omap4_prm_vp_clear_txdone,
 };
 
 int __init omap44xx_prm_init(void)
diff --git a/arch/arm/mach-omap2/prm44xx_54xx.h b/arch/arm/mach-omap2/prm44xx_54xx.h
index 7143295..a470185 100644
--- a/arch/arm/mach-omap2/prm44xx_54xx.h
+++ b/arch/arm/mach-omap2/prm44xx_54xx.h
@@ -26,10 +26,6 @@
 /* Function prototypes */
 #ifndef __ASSEMBLER__
 
-/* OMAP4/OMAP5-specific VP functions */
-u32 omap4_prm_vp_check_txdone(u8 vp_id);
-void omap4_prm_vp_clear_txdone(u8 vp_id);
-
 /*
  * OMAP4/OMAP5 access functions for voltage controller (VC) and
  * voltage proccessor (VP) in the PRM.
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 772b8f6..c0bfc92 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -544,6 +544,42 @@ int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
 }
 
 /**
+ * omap_prm_vp_check_txdone - check voltage processor TX done status
+ * @vp_id: voltage processor identifier to clear
+ *
+ * Checks if voltage processor transmission has been completed.
+ * Returns non-zero if a transmission has completed, 0 otherwise.
+ */
+u32 omap_prm_vp_check_txdone(u8 vp_id)
+{
+	if (!prm_ll_data->vp_check_txdone) {
+		WARN_ONCE(1, "prm: %s: no mapping function defined\n",
+			  __func__);
+		return 0;
+	}
+
+	return prm_ll_data->vp_check_txdone(vp_id);
+}
+
+/**
+ * omap_prm_vp_clear_txdone - clears voltage processor TX done status
+ * @vp_id: voltage processor identifier to clear
+ *
+ * Clears the status bit for completed voltage processor transmission
+ * returned by prm_vp_check_txdone.
+ */
+void omap_prm_vp_clear_txdone(u8 vp_id)
+{
+	if (!prm_ll_data->vp_clear_txdone) {
+		WARN_ONCE(1, "prm: %s: no mapping function defined\n",
+			  __func__);
+		return;
+	}
+
+	prm_ll_data->vp_clear_txdone(vp_id);
+}
+
+/**
  * prm_register - register per-SoC low-level data with the PRM
  * @pld: low-level per-SoC OMAP PRM data & function pointers to register
  *
diff --git a/arch/arm/mach-omap2/vp.h b/arch/arm/mach-omap2/vp.h
index 0fdf7080..7e08296 100644
--- a/arch/arm/mach-omap2/vp.h
+++ b/arch/arm/mach-omap2/vp.h
@@ -21,15 +21,6 @@
 
 struct voltagedomain;
 
-/*
- * Voltage Processor (VP) identifiers
- */
-#define OMAP3_VP_VDD_MPU_ID 0
-#define OMAP3_VP_VDD_CORE_ID 1
-#define OMAP4_VP_VDD_CORE_ID 0
-#define OMAP4_VP_VDD_IVA_ID 1
-#define OMAP4_VP_VDD_MPU_ID 2
-
 /* XXX document */
 #define VP_IDLE_TIMEOUT		200
 #define VP_TRANXDONE_TIMEOUT	300
diff --git a/arch/arm/mach-omap2/vp3xxx_data.c b/arch/arm/mach-omap2/vp3xxx_data.c
index 1914e02..b0590fe 100644
--- a/arch/arm/mach-omap2/vp3xxx_data.c
+++ b/arch/arm/mach-omap2/vp3xxx_data.c
@@ -28,8 +28,8 @@
 #include "prm2xxx_3xxx.h"
 
 static const struct omap_vp_ops omap3_vp_ops = {
-	.check_txdone = omap3_prm_vp_check_txdone,
-	.clear_txdone = omap3_prm_vp_clear_txdone,
+	.check_txdone = omap_prm_vp_check_txdone,
+	.clear_txdone = omap_prm_vp_clear_txdone,
 };
 
 /*
diff --git a/arch/arm/mach-omap2/vp44xx_data.c b/arch/arm/mach-omap2/vp44xx_data.c
index e62f6b0..2448bb9 100644
--- a/arch/arm/mach-omap2/vp44xx_data.c
+++ b/arch/arm/mach-omap2/vp44xx_data.c
@@ -28,8 +28,8 @@
 #include "vp.h"
 
 static const struct omap_vp_ops omap4_vp_ops = {
-	.check_txdone = omap4_prm_vp_check_txdone,
-	.clear_txdone = omap4_prm_vp_clear_txdone,
+	.check_txdone = omap_prm_vp_check_txdone,
+	.clear_txdone = omap_prm_vp_clear_txdone,
 };
 
 /*
-- 
1.7.9.5

[PATCH 09/23] ARM: OMAP3+: PRM: add common APIs for prm_vp_check/clear_txdone

[Tero Kristo]

PRM driver now only exports a generic API for clearing / checking
VP txdone status.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/prm.h          |   14 ++++++++++++++
 arch/arm/mach-omap2/prm3xxx.c      |    6 ++++--
 arch/arm/mach-omap2/prm3xxx.h      |    4 ----
 arch/arm/mach-omap2/prm44xx.c      |    6 ++++--
 arch/arm/mach-omap2/prm44xx_54xx.h |    4 ----
 arch/arm/mach-omap2/prm_common.c   |   34 ++++++++++++++++++++++++++++++++++
 arch/arm/mach-omap2/vp.h           |    9 ---------
 arch/arm/mach-omap2/vp3xxx_data.c  |    4 ++--
 arch/arm/mach-omap2/vp44xx_data.c  |    4 ++--
 9 files changed, 60 insertions(+), 25 deletions(-)

diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index 14d504b..6521eaa 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -146,6 +146,8 @@ struct prm_ll_data {
 				     u16 offset);
 	void (*reset_system)(void);
 	int (*clear_mod_irqs)(s16 module, u8 regs, u32 wkst_mask);
+	u32 (*vp_check_txdone)(u8 vp_id);
+	void (*vp_clear_txdone)(u8 vp_id);
 };
 
 extern int prm_register(struct prm_ll_data *pld);
@@ -163,6 +165,18 @@ void omap_prm_reset_system(void);
 void omap_prm_reconfigure_io_chain(void);
 int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask);
 
+/*
+ * Voltage Processor (VP) identifiers
+ */
+#define OMAP3_VP_VDD_MPU_ID	0
+#define OMAP3_VP_VDD_CORE_ID	1
+#define OMAP4_VP_VDD_CORE_ID	0
+#define OMAP4_VP_VDD_IVA_ID	1
+#define OMAP4_VP_VDD_MPU_ID	2
+
+u32 omap_prm_vp_check_txdone(u8 vp_id);
+void omap_prm_vp_clear_txdone(u8 vp_id);
+
 #endif
 
 
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 95fed03..8993ab7 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -96,7 +96,7 @@ static struct omap3_vp omap3_vp[] = {
 
 #define MAX_VP_ID ARRAY_SIZE(omap3_vp);
 
-u32 omap3_prm_vp_check_txdone(u8 vp_id)
+static u32 omap3_prm_vp_check_txdone(u8 vp_id)
 {
 	struct omap3_vp *vp = &omap3_vp[vp_id];
 	u32 irqstatus;
@@ -106,7 +106,7 @@ u32 omap3_prm_vp_check_txdone(u8 vp_id)
 	return irqstatus & vp->tranxdone_status;
 }
 
-void omap3_prm_vp_clear_txdone(u8 vp_id)
+static void omap3_prm_vp_clear_txdone(u8 vp_id)
 {
 	struct omap3_vp *vp = &omap3_vp[vp_id];
 
@@ -665,6 +665,8 @@ static struct prm_ll_data omap3xxx_prm_ll_data = {
 	.is_hardreset_asserted = &omap2_prm_is_hardreset_asserted,
 	.reset_system = &omap3xxx_prm_dpll3_reset,
 	.clear_mod_irqs = &omap3xxx_prm_clear_mod_irqs,
+	.vp_check_txdone = &omap3_prm_vp_check_txdone,
+	.vp_clear_txdone = &omap3_prm_vp_clear_txdone,
 };
 
 int __init omap3xxx_prm_init(void)
diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h
index 5a09a74..55e4c89 100644
--- a/arch/arm/mach-omap2/prm3xxx.h
+++ b/arch/arm/mach-omap2/prm3xxx.h
@@ -132,10 +132,6 @@
 
 #ifndef __ASSEMBLER__
 
-/* OMAP3-specific VP functions */
-u32 omap3_prm_vp_check_txdone(u8 vp_id);
-void omap3_prm_vp_clear_txdone(u8 vp_id);
-
 /*
  * OMAP3 access functions for voltage controller (VC) and
  * voltage proccessor (VP) in the PRM.
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index cc170fb..0f0e49f 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -137,7 +137,7 @@ static struct omap4_vp omap4_vp[] = {
 	},
 };
 
-u32 omap4_prm_vp_check_txdone(u8 vp_id)
+static u32 omap4_prm_vp_check_txdone(u8 vp_id)
 {
 	struct omap4_vp *vp = &omap4_vp[vp_id];
 	u32 irqstatus;
@@ -148,7 +148,7 @@ u32 omap4_prm_vp_check_txdone(u8 vp_id)
 	return irqstatus & vp->tranxdone_status;
 }
 
-void omap4_prm_vp_clear_txdone(u8 vp_id)
+static void omap4_prm_vp_clear_txdone(u8 vp_id)
 {
 	struct omap4_vp *vp = &omap4_vp[vp_id];
 
@@ -698,6 +698,8 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
 	.deassert_hardreset	= omap4_prminst_deassert_hardreset,
 	.is_hardreset_asserted	= omap4_prminst_is_hardreset_asserted,
 	.reset_system		= omap4_prminst_global_warm_sw_reset,
+	.vp_check_txdone	= omap4_prm_vp_check_txdone,
+	.vp_clear_txdone	= omap4_prm_vp_clear_txdone,
 };
 
 int __init omap44xx_prm_init(void)
diff --git a/arch/arm/mach-omap2/prm44xx_54xx.h b/arch/arm/mach-omap2/prm44xx_54xx.h
index 7143295..a470185 100644
--- a/arch/arm/mach-omap2/prm44xx_54xx.h
+++ b/arch/arm/mach-omap2/prm44xx_54xx.h
@@ -26,10 +26,6 @@
 /* Function prototypes */
 #ifndef __ASSEMBLER__
 
-/* OMAP4/OMAP5-specific VP functions */
-u32 omap4_prm_vp_check_txdone(u8 vp_id);
-void omap4_prm_vp_clear_txdone(u8 vp_id);
-
 /*
  * OMAP4/OMAP5 access functions for voltage controller (VC) and
  * voltage proccessor (VP) in the PRM.
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 772b8f6..c0bfc92 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -544,6 +544,42 @@ int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
 }
 
 /**
+ * omap_prm_vp_check_txdone - check voltage processor TX done status
+ * @vp_id: voltage processor identifier to clear
+ *
+ * Checks if voltage processor transmission has been completed.
+ * Returns non-zero if a transmission has completed, 0 otherwise.
+ */
+u32 omap_prm_vp_check_txdone(u8 vp_id)
+{
+	if (!prm_ll_data->vp_check_txdone) {
+		WARN_ONCE(1, "prm: %s: no mapping function defined\n",
+			  __func__);
+		return 0;
+	}
+
+	return prm_ll_data->vp_check_txdone(vp_id);
+}
+
+/**
+ * omap_prm_vp_clear_txdone - clears voltage processor TX done status
+ * @vp_id: voltage processor identifier to clear
+ *
+ * Clears the status bit for completed voltage processor transmission
+ * returned by prm_vp_check_txdone.
+ */
+void omap_prm_vp_clear_txdone(u8 vp_id)
+{
+	if (!prm_ll_data->vp_clear_txdone) {
+		WARN_ONCE(1, "prm: %s: no mapping function defined\n",
+			  __func__);
+		return;
+	}
+
+	prm_ll_data->vp_clear_txdone(vp_id);
+}
+
+/**
  * prm_register - register per-SoC low-level data with the PRM
  * @pld: low-level per-SoC OMAP PRM data & function pointers to register
  *
diff --git a/arch/arm/mach-omap2/vp.h b/arch/arm/mach-omap2/vp.h
index 0fdf7080..7e08296 100644
--- a/arch/arm/mach-omap2/vp.h
+++ b/arch/arm/mach-omap2/vp.h
@@ -21,15 +21,6 @@
 
 struct voltagedomain;
 
-/*
- * Voltage Processor (VP) identifiers
- */
-#define OMAP3_VP_VDD_MPU_ID 0
-#define OMAP3_VP_VDD_CORE_ID 1
-#define OMAP4_VP_VDD_CORE_ID 0
-#define OMAP4_VP_VDD_IVA_ID 1
-#define OMAP4_VP_VDD_MPU_ID 2
-
 /* XXX document */
 #define VP_IDLE_TIMEOUT		200
 #define VP_TRANXDONE_TIMEOUT	300
diff --git a/arch/arm/mach-omap2/vp3xxx_data.c b/arch/arm/mach-omap2/vp3xxx_data.c
index 1914e02..b0590fe 100644
--- a/arch/arm/mach-omap2/vp3xxx_data.c
+++ b/arch/arm/mach-omap2/vp3xxx_data.c
@@ -28,8 +28,8 @@
 #include "prm2xxx_3xxx.h"
 
 static const struct omap_vp_ops omap3_vp_ops = {
-	.check_txdone = omap3_prm_vp_check_txdone,
-	.clear_txdone = omap3_prm_vp_clear_txdone,
+	.check_txdone = omap_prm_vp_check_txdone,
+	.clear_txdone = omap_prm_vp_clear_txdone,
 };
 
 /*
diff --git a/arch/arm/mach-omap2/vp44xx_data.c b/arch/arm/mach-omap2/vp44xx_data.c
index e62f6b0..2448bb9 100644
--- a/arch/arm/mach-omap2/vp44xx_data.c
+++ b/arch/arm/mach-omap2/vp44xx_data.c
@@ -28,8 +28,8 @@
 #include "vp.h"
 
 static const struct omap_vp_ops omap4_vp_ops = {
-	.check_txdone = omap4_prm_vp_check_txdone,
-	.clear_txdone = omap4_prm_vp_clear_txdone,
+	.check_txdone = omap_prm_vp_check_txdone,
+	.clear_txdone = omap_prm_vp_clear_txdone,
 };
 
 /*
-- 
1.7.9.5

[PATCH 10/23] ARM: OMAP4+: PRM: move omap_prm_base_init under OMAP4 PRM driver

[Tero Kristo]

There is no need to call this separately from io.c, rather this can be
done commonly under the PRM driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/io.c      |    4 ----
 arch/arm/mach-omap2/prm44xx.c |    2 ++
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index ec2ace0..782d4bc 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -591,7 +591,6 @@ void __init am43xx_init_early(void)
 				  NULL);
 	omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE));
 	omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE), NULL);
-	omap_prm_base_init();
 	omap_cm_base_init();
 	omap3xxx_check_revision();
 	am33xx_check_features();
@@ -622,7 +621,6 @@ void __init omap4430_init_early(void)
 	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
 			     OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
-	omap_prm_base_init();
 	omap_cm_base_init();
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
@@ -658,7 +656,6 @@ void __init omap5_init_early(void)
 			     OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
-	omap_prm_base_init();
 	omap_cm_base_init();
 	omap44xx_prm_init();
 	omap5xxx_check_revision();
@@ -690,7 +687,6 @@ void __init dra7xx_init_early(void)
 			     OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
-	omap_prm_base_init();
 	omap_cm_base_init();
 	omap44xx_prm_init();
 	dra7xxx_check_revision();
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index 0f0e49f..2692339 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -704,6 +704,8 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
 
 int __init omap44xx_prm_init(void)
 {
+	omap_prm_base_init();
+
 	if (cpu_is_omap44xx() || soc_is_omap54xx() || soc_is_dra7xx())
 		prm_features |= PRM_HAS_IO_WAKEUP;
 
-- 
1.7.9.5

[PATCH 10/23] ARM: OMAP4+: PRM: move omap_prm_base_init under OMAP4 PRM driver

[Tero Kristo]

There is no need to call this separately from io.c, rather this can be
done commonly under the PRM driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/io.c      |    4 ----
 arch/arm/mach-omap2/prm44xx.c |    2 ++
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index ec2ace0..782d4bc 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -591,7 +591,6 @@ void __init am43xx_init_early(void)
 				  NULL);
 	omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE));
 	omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE), NULL);
-	omap_prm_base_init();
 	omap_cm_base_init();
 	omap3xxx_check_revision();
 	am33xx_check_features();
@@ -622,7 +621,6 @@ void __init omap4430_init_early(void)
 	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
 			     OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
-	omap_prm_base_init();
 	omap_cm_base_init();
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
@@ -658,7 +656,6 @@ void __init omap5_init_early(void)
 			     OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
-	omap_prm_base_init();
 	omap_cm_base_init();
 	omap44xx_prm_init();
 	omap5xxx_check_revision();
@@ -690,7 +687,6 @@ void __init dra7xx_init_early(void)
 			     OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
-	omap_prm_base_init();
 	omap_cm_base_init();
 	omap44xx_prm_init();
 	dra7xxx_check_revision();
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index 0f0e49f..2692339 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -704,6 +704,8 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
 
 int __init omap44xx_prm_init(void)
 {
+	omap_prm_base_init();
+
 	if (cpu_is_omap44xx() || soc_is_omap54xx() || soc_is_dra7xx())
 		prm_features |= PRM_HAS_IO_WAKEUP;
 
-- 
1.7.9.5

[PATCH 11/23] ARM: OMAP4+: CM: move omap_cm_base_init under OMAP4 CM driver

[Tero Kristo]

There is no need to call this separately from io.c, rather this can be
done commonly under the CM driver. Also, this patch makes the API static,
as it is no longer used outside the driver file.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/cm44xx.h     |    1 -
 arch/arm/mach-omap2/cminst44xx.c |    4 +++-
 arch/arm/mach-omap2/io.c         |    4 ----
 3 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-omap2/cm44xx.h b/arch/arm/mach-omap2/cm44xx.h
index 728d06a..ad6e263 100644
--- a/arch/arm/mach-omap2/cm44xx.h
+++ b/arch/arm/mach-omap2/cm44xx.h
@@ -23,7 +23,6 @@
 #define OMAP4_CM_CLKSTCTRL				0x0000
 #define OMAP4_CM_STATICDEP				0x0004
 
-void omap_cm_base_init(void);
 int omap4_cm_init(void);
 
 #endif
diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c
index 95a8cff..9319034 100644
--- a/arch/arm/mach-omap2/cminst44xx.c
+++ b/arch/arm/mach-omap2/cminst44xx.c
@@ -63,7 +63,7 @@ static void __iomem *_cm_bases[OMAP4_MAX_PRCM_PARTITIONS];
  * Populates the base addresses of the _cm_bases
  * array used for read/write of cm module registers.
  */
-void omap_cm_base_init(void)
+static void omap_cm_base_init(void)
 {
 	_cm_bases[OMAP4430_PRM_PARTITION] = prm_base;
 	_cm_bases[OMAP4430_CM1_PARTITION] = cm_base;
@@ -516,6 +516,8 @@ static struct cm_ll_data omap4xxx_cm_ll_data = {
 
 int __init omap4_cm_init(void)
 {
+	omap_cm_base_init();
+
 	return cm_register(&omap4xxx_cm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 782d4bc..1147320 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -591,7 +591,6 @@ void __init am43xx_init_early(void)
 				  NULL);
 	omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE));
 	omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE), NULL);
-	omap_cm_base_init();
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	omap44xx_prm_init();
@@ -621,7 +620,6 @@ void __init omap4430_init_early(void)
 	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
 			     OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
-	omap_cm_base_init();
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
 	omap4_cm_init();
@@ -656,7 +654,6 @@ void __init omap5_init_early(void)
 			     OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
-	omap_cm_base_init();
 	omap44xx_prm_init();
 	omap5xxx_check_revision();
 	omap4_cm_init();
@@ -687,7 +684,6 @@ void __init dra7xx_init_early(void)
 			     OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
-	omap_cm_base_init();
 	omap44xx_prm_init();
 	dra7xxx_check_revision();
 	omap4_cm_init();
-- 
1.7.9.5

[PATCH 11/23] ARM: OMAP4+: CM: move omap_cm_base_init under OMAP4 CM driver

[Tero Kristo]

There is no need to call this separately from io.c, rather this can be
done commonly under the CM driver. Also, this patch makes the API static,
as it is no longer used outside the driver file.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/cm44xx.h     |    1 -
 arch/arm/mach-omap2/cminst44xx.c |    4 +++-
 arch/arm/mach-omap2/io.c         |    4 ----
 3 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-omap2/cm44xx.h b/arch/arm/mach-omap2/cm44xx.h
index 728d06a..ad6e263 100644
--- a/arch/arm/mach-omap2/cm44xx.h
+++ b/arch/arm/mach-omap2/cm44xx.h
@@ -23,7 +23,6 @@
 #define OMAP4_CM_CLKSTCTRL				0x0000
 #define OMAP4_CM_STATICDEP				0x0004
 
-void omap_cm_base_init(void);
 int omap4_cm_init(void);
 
 #endif
diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c
index 95a8cff..9319034 100644
--- a/arch/arm/mach-omap2/cminst44xx.c
+++ b/arch/arm/mach-omap2/cminst44xx.c
@@ -63,7 +63,7 @@ static void __iomem *_cm_bases[OMAP4_MAX_PRCM_PARTITIONS];
  * Populates the base addresses of the _cm_bases
  * array used for read/write of cm module registers.
  */
-void omap_cm_base_init(void)
+static void omap_cm_base_init(void)
 {
 	_cm_bases[OMAP4430_PRM_PARTITION] = prm_base;
 	_cm_bases[OMAP4430_CM1_PARTITION] = cm_base;
@@ -516,6 +516,8 @@ static struct cm_ll_data omap4xxx_cm_ll_data = {
 
 int __init omap4_cm_init(void)
 {
+	omap_cm_base_init();
+
 	return cm_register(&omap4xxx_cm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 782d4bc..1147320 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -591,7 +591,6 @@ void __init am43xx_init_early(void)
 				  NULL);
 	omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE));
 	omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE), NULL);
-	omap_cm_base_init();
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	omap44xx_prm_init();
@@ -621,7 +620,6 @@ void __init omap4430_init_early(void)
 	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
 			     OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
-	omap_cm_base_init();
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
 	omap4_cm_init();
@@ -656,7 +654,6 @@ void __init omap5_init_early(void)
 			     OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
-	omap_cm_base_init();
 	omap44xx_prm_init();
 	omap5xxx_check_revision();
 	omap4_cm_init();
@@ -687,7 +684,6 @@ void __init dra7xx_init_early(void)
 			     OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
-	omap_cm_base_init();
 	omap44xx_prm_init();
 	dra7xxx_check_revision();
 	omap4_cm_init();
-- 
1.7.9.5

[PATCH 12/23] ARM: OMAP2+: clock: add support for static clock memmap indexes

[Tero Kristo]

All clock provider related drivers will now register their iomaps
individually, and provide index number to the provider init. The
clock related drivers also add support for providing init data
through the DT match functionality; this is initially used only
to provide the index variable, but can be expanded later to provide
more functionality.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/clock.c       |   32 ++++++++++++--------------
 arch/arm/mach-omap2/clock.h       |   10 +++++++-
 arch/arm/mach-omap2/cm_common.c   |   43 +++++++++++++++++++++++++++-------
 arch/arm/mach-omap2/control.c     |   37 +++++++++++++++++++++++++----
 arch/arm/mach-omap2/prcm-common.h |    8 +++++++
 arch/arm/mach-omap2/prm_common.c  |   46 ++++++++++++++++++++++++++-----------
 6 files changed, 132 insertions(+), 44 deletions(-)

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 2e8b868..702bf29 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -117,30 +117,28 @@ static struct ti_clk_ll_ops omap_clk_ll_ops = {
 
 /**
  * omap2_clk_provider_init - initialize a clock provider
- * @match_table: DT device table to match for devices to init
+ * @np: device node for initializing the clock provider
+ * @index: memory map index for the clock provider
+ * @mem: iomem pointer for the memory map
  *
- * Initializes a clock provider module (CM/PRM etc.), allocating the
- * memory mapping, allocating the mapping index and initializing the
- * low level driver infrastructure. Returns 0 in success, -ENOMEM in
- * failure.
+ * Initializes a clock provider module (CM/PRM etc.), registering
+ * the iomap and initializing the low level driver infrastructure.
+ * Returns 0 in success, -EINVAL if multiple registration is attempted.
  */
-int __init omap2_clk_provider_init(const struct of_device_id *match_table)
+int __init omap2_clk_provider_init(struct device_node *np, int index,
+				   void __iomem *mem)
 {
-	struct device_node *np;
-	void __iomem *mem;
-	static int memmap_index;
-
 	ti_clk_ll_ops = &omap_clk_ll_ops;
 
-	for_each_matching_node(np, match_table) {
-		mem = of_iomap(np, 0);
-		if (!mem)
-			return -ENOMEM;
-		clk_memmaps[memmap_index] = mem;
-		ti_dt_clk_init_provider(np, memmap_index);
-		memmap_index++;
+	if (clk_memmaps[index]) {
+		pr_err("%s: duplicate registration for index %d!\n", __func__,
+		       index);
+		return -EINVAL;
 	}
 
+	clk_memmaps[index] = mem;
+	ti_dt_clk_init_provider(np, index);
+
 	return 0;
 }
 
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 8f6a0fb..de18199 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -235,6 +235,13 @@ struct ti_clk_features {
 
 #define TI_CLK_DPLL_HAS_FREQSEL		(1 << 0)
 
+enum {
+	CLK_MEMMAP_INDEX_PRM = 0,
+	CLK_MEMMAP_INDEX_CM1,
+	CLK_MEMMAP_INDEX_CM2,
+	CLK_MEMMAP_INDEX_SCRM,
+};
+
 extern struct ti_clk_features ti_clk_features;
 
 extern const struct clkops clkops_omap2_dflt_wait;
@@ -274,7 +281,8 @@ extern void omap2_clkops_disable_clkdm(struct clk_hw *hw);
 
 extern void omap_clocks_register(struct omap_clk *oclks, int cnt);
 
-int __init omap2_clk_provider_init(const struct of_device_id *match_table);
+int __init omap2_clk_provider_init(struct device_node *np, int index,
+				   void __iomem *mem);
 
 void __init ti_clk_init_features(void);
 #endif
diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
index f0a44aa..ff76cb7 100644
--- a/arch/arm/mach-omap2/cm_common.c
+++ b/arch/arm/mach-omap2/cm_common.c
@@ -16,6 +16,7 @@
 #include <linux/errno.h>
 #include <linux/bug.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 
 #include "cm2xxx.h"
 #include "cm3xxx.h"
@@ -215,14 +216,22 @@ int cm_unregister(struct cm_ll_data *cld)
 	return 0;
 }
 
+static const struct omap_prcm_init_data cm_data = {
+	.index = CLK_MEMMAP_INDEX_CM1,
+};
+
+static const struct omap_prcm_init_data cm2_data = {
+	.index = CLK_MEMMAP_INDEX_CM2,
+};
+
 static struct of_device_id omap_cm_dt_match_table[] = {
-	{ .compatible = "ti,omap3-cm" },
-	{ .compatible = "ti,omap4-cm1" },
-	{ .compatible = "ti,omap4-cm2" },
-	{ .compatible = "ti,omap5-cm-core-aon" },
-	{ .compatible = "ti,omap5-cm-core" },
-	{ .compatible = "ti,dra7-cm-core-aon" },
-	{ .compatible = "ti,dra7-cm-core" },
+	{ .compatible = "ti,omap3-cm", .data = &cm_data },
+	{ .compatible = "ti,omap4-cm1", .data = &cm_data },
+	{ .compatible = "ti,omap4-cm2", .data = &cm2_data },
+	{ .compatible = "ti,omap5-cm-core-aon", .data = &cm_data },
+	{ .compatible = "ti,omap5-cm-core", .data = &cm2_data },
+	{ .compatible = "ti,dra7-cm-core-aon", .data = &cm_data },
+	{ .compatible = "ti,dra7-cm-core", .data = &cm2_data },
 	{ }
 };
 
@@ -234,5 +243,23 @@ static struct of_device_id omap_cm_dt_match_table[] = {
  */
 int __init omap_cm_init(void)
 {
-	return omap2_clk_provider_init(omap_cm_dt_match_table);
+	struct device_node *np;
+	const struct of_device_id *match;
+	const struct omap_prcm_init_data *data;
+	void __iomem *mem;
+	int ret;
+
+	for_each_matching_node_and_match(np, omap_cm_dt_match_table, &match) {
+		data = match->data;
+
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+
+		ret = omap2_clk_provider_init(np, data->index, mem);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
 }
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index a53341f..f9519f1 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -14,6 +14,7 @@
 
 #include <linux/kernel.h>
 #include <linux/io.h>
+#include <linux/of_address.h>
 
 #include "soc.h"
 #include "iomap.h"
@@ -613,11 +614,19 @@ void __init omap3_ctrl_init(void)
 }
 #endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */
 
+struct control_init_data {
+	int index;
+};
+
+static const struct control_init_data ctrl_data = {
+	.index = CLK_MEMMAP_INDEX_SCRM,
+};
+
 static struct of_device_id omap_scrm_dt_match_table[] = {
-	{ .compatible = "ti,am3-scrm" },
-	{ .compatible = "ti,am4-scrm" },
-	{ .compatible = "ti,omap2-scrm" },
-	{ .compatible = "ti,omap3-scrm" },
+	{ .compatible = "ti,am3-scrm", .data = &ctrl_data },
+	{ .compatible = "ti,am4-scrm", .data = &ctrl_data },
+	{ .compatible = "ti,omap2-scrm", .data = &ctrl_data },
+	{ .compatible = "ti,omap3-scrm", .data = &ctrl_data },
 	{ }
 };
 
@@ -629,5 +638,23 @@ static struct of_device_id omap_scrm_dt_match_table[] = {
  */
 int __init omap_control_init(void)
 {
-	return omap2_clk_provider_init(omap_scrm_dt_match_table);
+	struct device_node *np;
+	const struct of_device_id *match;
+	const struct control_init_data *data;
+	void __iomem *mem;
+	int ret;
+
+	for_each_matching_node_and_match(np, omap_scrm_dt_match_table, &match) {
+		data = match->data;
+
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+
+		ret = omap2_clk_provider_init(np, data->index, mem);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
 }
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index 22afef0..e260567 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -519,6 +519,14 @@ struct omap_prcm_irq_setup {
 
 struct of_device_id;
 
+/**
+ * struct omap_prcm_init_data - PRCM driver init data
+ * @index: clock memory mapping index to be used
+ */
+struct omap_prcm_init_data {
+	int index;
+};
+
 extern void omap_prcm_irq_cleanup(void);
 extern int omap_prcm_register_chain_handler(
 	struct omap_prcm_irq_setup *irq_setup);
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index c0bfc92..21e9d16 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -622,16 +622,24 @@ int prm_unregister(struct prm_ll_data *pld)
 	return 0;
 }
 
-static const struct of_device_id omap_prcm_dt_match_table[] = {
-	{ .compatible = "ti,am3-prcm" },
-	{ .compatible = "ti,am4-prcm" },
-	{ .compatible = "ti,omap2-prcm" },
-	{ .compatible = "ti,omap3-prm" },
-	{ .compatible = "ti,omap4-prm" },
-	{ .compatible = "ti,omap4-scrm" },
-	{ .compatible = "ti,omap5-prm" },
-	{ .compatible = "ti,omap5-scrm" },
-	{ .compatible = "ti,dra7-prm" },
+static const struct omap_prcm_init_data prm_data = {
+	.index = CLK_MEMMAP_INDEX_PRM,
+};
+
+static const struct omap_prcm_init_data scrm_data = {
+	.index = CLK_MEMMAP_INDEX_SCRM,
+};
+
+static struct of_device_id omap_prcm_dt_match_table[] = {
+	{ .compatible = "ti,am3-prcm", .data = &prm_data },
+	{ .compatible = "ti,am4-prcm", .data = &prm_data },
+	{ .compatible = "ti,omap2-prcm", .data = &prm_data },
+	{ .compatible = "ti,omap3-prm", .data = &prm_data },
+	{ .compatible = "ti,omap4-prm", .data = &prm_data },
+	{ .compatible = "ti,omap4-scrm", .data = &scrm_data },
+	{ .compatible = "ti,omap5-prm", .data = &prm_data },
+	{ .compatible = "ti,omap5-scrm", .data = &scrm_data },
+	{ .compatible = "ti,dra7-prm", .data = &prm_data },
 	{ }
 };
 
@@ -643,11 +651,23 @@ static const struct of_device_id omap_prcm_dt_match_table[] = {
  */
 int __init omap_prcm_init(void)
 {
+	struct device_node *np;
+	const struct of_device_id *match;
+	const struct omap_prcm_init_data *data;
+	void __iomem *mem;
 	int ret;
 
-	ret = omap2_clk_provider_init(omap_prcm_dt_match_table);
-	if (ret)
-		return ret;
+	for_each_matching_node_and_match(np, omap_prcm_dt_match_table, &match) {
+		data = match->data;
+
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+
+		ret = omap2_clk_provider_init(np, data->index, mem);
+		if (ret)
+			return ret;
+	}
 
 	return omap_cm_init();
 }
-- 
1.7.9.5

[PATCH 12/23] ARM: OMAP2+: clock: add support for static clock memmap indexes

[Tero Kristo]

All clock provider related drivers will now register their iomaps
individually, and provide index number to the provider init. The
clock related drivers also add support for providing init data
through the DT match functionality; this is initially used only
to provide the index variable, but can be expanded later to provide
more functionality.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/clock.c       |   32 ++++++++++++--------------
 arch/arm/mach-omap2/clock.h       |   10 +++++++-
 arch/arm/mach-omap2/cm_common.c   |   43 +++++++++++++++++++++++++++-------
 arch/arm/mach-omap2/control.c     |   37 +++++++++++++++++++++++++----
 arch/arm/mach-omap2/prcm-common.h |    8 +++++++
 arch/arm/mach-omap2/prm_common.c  |   46 ++++++++++++++++++++++++++-----------
 6 files changed, 132 insertions(+), 44 deletions(-)

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 2e8b868..702bf29 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -117,30 +117,28 @@ static struct ti_clk_ll_ops omap_clk_ll_ops = {
 
 /**
  * omap2_clk_provider_init - initialize a clock provider
- * @match_table: DT device table to match for devices to init
+ * @np: device node for initializing the clock provider
+ * @index: memory map index for the clock provider
+ * @mem: iomem pointer for the memory map
  *
- * Initializes a clock provider module (CM/PRM etc.), allocating the
- * memory mapping, allocating the mapping index and initializing the
- * low level driver infrastructure. Returns 0 in success, -ENOMEM in
- * failure.
+ * Initializes a clock provider module (CM/PRM etc.), registering
+ * the iomap and initializing the low level driver infrastructure.
+ * Returns 0 in success, -EINVAL if multiple registration is attempted.
  */
-int __init omap2_clk_provider_init(const struct of_device_id *match_table)
+int __init omap2_clk_provider_init(struct device_node *np, int index,
+				   void __iomem *mem)
 {
-	struct device_node *np;
-	void __iomem *mem;
-	static int memmap_index;
-
 	ti_clk_ll_ops = &omap_clk_ll_ops;
 
-	for_each_matching_node(np, match_table) {
-		mem = of_iomap(np, 0);
-		if (!mem)
-			return -ENOMEM;
-		clk_memmaps[memmap_index] = mem;
-		ti_dt_clk_init_provider(np, memmap_index);
-		memmap_index++;
+	if (clk_memmaps[index]) {
+		pr_err("%s: duplicate registration for index %d!\n", __func__,
+		       index);
+		return -EINVAL;
 	}
 
+	clk_memmaps[index] = mem;
+	ti_dt_clk_init_provider(np, index);
+
 	return 0;
 }
 
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 8f6a0fb..de18199 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -235,6 +235,13 @@ struct ti_clk_features {
 
 #define TI_CLK_DPLL_HAS_FREQSEL		(1 << 0)
 
+enum {
+	CLK_MEMMAP_INDEX_PRM = 0,
+	CLK_MEMMAP_INDEX_CM1,
+	CLK_MEMMAP_INDEX_CM2,
+	CLK_MEMMAP_INDEX_SCRM,
+};
+
 extern struct ti_clk_features ti_clk_features;
 
 extern const struct clkops clkops_omap2_dflt_wait;
@@ -274,7 +281,8 @@ extern void omap2_clkops_disable_clkdm(struct clk_hw *hw);
 
 extern void omap_clocks_register(struct omap_clk *oclks, int cnt);
 
-int __init omap2_clk_provider_init(const struct of_device_id *match_table);
+int __init omap2_clk_provider_init(struct device_node *np, int index,
+				   void __iomem *mem);
 
 void __init ti_clk_init_features(void);
 #endif
diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
index f0a44aa..ff76cb7 100644
--- a/arch/arm/mach-omap2/cm_common.c
+++ b/arch/arm/mach-omap2/cm_common.c
@@ -16,6 +16,7 @@
 #include <linux/errno.h>
 #include <linux/bug.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 
 #include "cm2xxx.h"
 #include "cm3xxx.h"
@@ -215,14 +216,22 @@ int cm_unregister(struct cm_ll_data *cld)
 	return 0;
 }
 
+static const struct omap_prcm_init_data cm_data = {
+	.index = CLK_MEMMAP_INDEX_CM1,
+};
+
+static const struct omap_prcm_init_data cm2_data = {
+	.index = CLK_MEMMAP_INDEX_CM2,
+};
+
 static struct of_device_id omap_cm_dt_match_table[] = {
-	{ .compatible = "ti,omap3-cm" },
-	{ .compatible = "ti,omap4-cm1" },
-	{ .compatible = "ti,omap4-cm2" },
-	{ .compatible = "ti,omap5-cm-core-aon" },
-	{ .compatible = "ti,omap5-cm-core" },
-	{ .compatible = "ti,dra7-cm-core-aon" },
-	{ .compatible = "ti,dra7-cm-core" },
+	{ .compatible = "ti,omap3-cm", .data = &cm_data },
+	{ .compatible = "ti,omap4-cm1", .data = &cm_data },
+	{ .compatible = "ti,omap4-cm2", .data = &cm2_data },
+	{ .compatible = "ti,omap5-cm-core-aon", .data = &cm_data },
+	{ .compatible = "ti,omap5-cm-core", .data = &cm2_data },
+	{ .compatible = "ti,dra7-cm-core-aon", .data = &cm_data },
+	{ .compatible = "ti,dra7-cm-core", .data = &cm2_data },
 	{ }
 };
 
@@ -234,5 +243,23 @@ static struct of_device_id omap_cm_dt_match_table[] = {
  */
 int __init omap_cm_init(void)
 {
-	return omap2_clk_provider_init(omap_cm_dt_match_table);
+	struct device_node *np;
+	const struct of_device_id *match;
+	const struct omap_prcm_init_data *data;
+	void __iomem *mem;
+	int ret;
+
+	for_each_matching_node_and_match(np, omap_cm_dt_match_table, &match) {
+		data = match->data;
+
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+
+		ret = omap2_clk_provider_init(np, data->index, mem);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
 }
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index a53341f..f9519f1 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -14,6 +14,7 @@
 
 #include <linux/kernel.h>
 #include <linux/io.h>
+#include <linux/of_address.h>
 
 #include "soc.h"
 #include "iomap.h"
@@ -613,11 +614,19 @@ void __init omap3_ctrl_init(void)
 }
 #endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */
 
+struct control_init_data {
+	int index;
+};
+
+static const struct control_init_data ctrl_data = {
+	.index = CLK_MEMMAP_INDEX_SCRM,
+};
+
 static struct of_device_id omap_scrm_dt_match_table[] = {
-	{ .compatible = "ti,am3-scrm" },
-	{ .compatible = "ti,am4-scrm" },
-	{ .compatible = "ti,omap2-scrm" },
-	{ .compatible = "ti,omap3-scrm" },
+	{ .compatible = "ti,am3-scrm", .data = &ctrl_data },
+	{ .compatible = "ti,am4-scrm", .data = &ctrl_data },
+	{ .compatible = "ti,omap2-scrm", .data = &ctrl_data },
+	{ .compatible = "ti,omap3-scrm", .data = &ctrl_data },
 	{ }
 };
 
@@ -629,5 +638,23 @@ static struct of_device_id omap_scrm_dt_match_table[] = {
  */
 int __init omap_control_init(void)
 {
-	return omap2_clk_provider_init(omap_scrm_dt_match_table);
+	struct device_node *np;
+	const struct of_device_id *match;
+	const struct control_init_data *data;
+	void __iomem *mem;
+	int ret;
+
+	for_each_matching_node_and_match(np, omap_scrm_dt_match_table, &match) {
+		data = match->data;
+
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+
+		ret = omap2_clk_provider_init(np, data->index, mem);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
 }
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index 22afef0..e260567 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -519,6 +519,14 @@ struct omap_prcm_irq_setup {
 
 struct of_device_id;
 
+/**
+ * struct omap_prcm_init_data - PRCM driver init data
+ * @index: clock memory mapping index to be used
+ */
+struct omap_prcm_init_data {
+	int index;
+};
+
 extern void omap_prcm_irq_cleanup(void);
 extern int omap_prcm_register_chain_handler(
 	struct omap_prcm_irq_setup *irq_setup);
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index c0bfc92..21e9d16 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -622,16 +622,24 @@ int prm_unregister(struct prm_ll_data *pld)
 	return 0;
 }
 
-static const struct of_device_id omap_prcm_dt_match_table[] = {
-	{ .compatible = "ti,am3-prcm" },
-	{ .compatible = "ti,am4-prcm" },
-	{ .compatible = "ti,omap2-prcm" },
-	{ .compatible = "ti,omap3-prm" },
-	{ .compatible = "ti,omap4-prm" },
-	{ .compatible = "ti,omap4-scrm" },
-	{ .compatible = "ti,omap5-prm" },
-	{ .compatible = "ti,omap5-scrm" },
-	{ .compatible = "ti,dra7-prm" },
+static const struct omap_prcm_init_data prm_data = {
+	.index = CLK_MEMMAP_INDEX_PRM,
+};
+
+static const struct omap_prcm_init_data scrm_data = {
+	.index = CLK_MEMMAP_INDEX_SCRM,
+};
+
+static struct of_device_id omap_prcm_dt_match_table[] = {
+	{ .compatible = "ti,am3-prcm", .data = &prm_data },
+	{ .compatible = "ti,am4-prcm", .data = &prm_data },
+	{ .compatible = "ti,omap2-prcm", .data = &prm_data },
+	{ .compatible = "ti,omap3-prm", .data = &prm_data },
+	{ .compatible = "ti,omap4-prm", .data = &prm_data },
+	{ .compatible = "ti,omap4-scrm", .data = &scrm_data },
+	{ .compatible = "ti,omap5-prm", .data = &prm_data },
+	{ .compatible = "ti,omap5-scrm", .data = &scrm_data },
+	{ .compatible = "ti,dra7-prm", .data = &prm_data },
 	{ }
 };
 
@@ -643,11 +651,23 @@ static const struct of_device_id omap_prcm_dt_match_table[] = {
  */
 int __init omap_prcm_init(void)
 {
+	struct device_node *np;
+	const struct of_device_id *match;
+	const struct omap_prcm_init_data *data;
+	void __iomem *mem;
 	int ret;
 
-	ret = omap2_clk_provider_init(omap_prcm_dt_match_table);
-	if (ret)
-		return ret;
+	for_each_matching_node_and_match(np, omap_prcm_dt_match_table, &match) {
+		data = match->data;
+
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+
+		ret = omap2_clk_provider_init(np, data->index, mem);
+		if (ret)
+			return ret;
+	}
 
 	return omap_cm_init();
 }
-- 
1.7.9.5

[PATCH 13/23] ARM: OMAP2+: CM: determine CM base address from device tree

[Tero Kristo]

There is no need to provide the CM base address through a low-level API
from the low-level IO init, as this information is available through DT.
Re-routed the parsing function to be called from the CM drivers also to
simplify the implementation under io.c.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/cm.h          |    1 +
 arch/arm/mach-omap2/cm2xxx.c      |    1 +
 arch/arm/mach-omap2/cm33xx.c      |    1 +
 arch/arm/mach-omap2/cm3xxx.c      |    1 +
 arch/arm/mach-omap2/cm_common.c   |   56 +++++++++++++++++++++++++++++++------
 arch/arm/mach-omap2/cminst44xx.c  |    1 +
 arch/arm/mach-omap2/io.c          |   12 ++------
 arch/arm/mach-omap2/prcm-common.h |    4 +++
 8 files changed, 58 insertions(+), 19 deletions(-)

diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h
index 748ac33..1fe3e6b 100644
--- a/arch/arm/mach-omap2/cm.h
+++ b/arch/arm/mach-omap2/cm.h
@@ -71,6 +71,7 @@ int omap_cm_module_disable(u8 part, u16 inst, u16 clkctrl_offs);
 extern int cm_register(struct cm_ll_data *cld);
 extern int cm_unregister(struct cm_ll_data *cld);
 int omap_cm_init(void);
+int omap2_cm_base_init(void);
 
 # endif
 
diff --git a/arch/arm/mach-omap2/cm2xxx.c b/arch/arm/mach-omap2/cm2xxx.c
index ef62ac9..f18c844 100644
--- a/arch/arm/mach-omap2/cm2xxx.c
+++ b/arch/arm/mach-omap2/cm2xxx.c
@@ -395,6 +395,7 @@ static struct cm_ll_data omap2xxx_cm_ll_data = {
 
 int __init omap2xxx_cm_init(void)
 {
+	omap2_cm_base_init();
 	return cm_register(&omap2xxx_cm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/cm33xx.c b/arch/arm/mach-omap2/cm33xx.c
index b9ad463..4c5038c 100644
--- a/arch/arm/mach-omap2/cm33xx.c
+++ b/arch/arm/mach-omap2/cm33xx.c
@@ -375,6 +375,7 @@ static struct cm_ll_data am33xx_cm_ll_data = {
 
 int __init am33xx_cm_init(void)
 {
+	omap2_cm_base_init();
 	return cm_register(&am33xx_cm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/cm3xxx.c b/arch/arm/mach-omap2/cm3xxx.c
index ebead8f..8e91f38 100644
--- a/arch/arm/mach-omap2/cm3xxx.c
+++ b/arch/arm/mach-omap2/cm3xxx.c
@@ -673,6 +673,7 @@ static struct cm_ll_data omap3xxx_cm_ll_data = {
 
 int __init omap3xxx_cm_init(void)
 {
+	omap2_cm_base_init();
 	return cm_register(&omap3xxx_cm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
index ff76cb7..c2d7c7b 100644
--- a/arch/arm/mach-omap2/cm_common.c
+++ b/arch/arm/mach-omap2/cm_common.c
@@ -216,16 +216,26 @@ int cm_unregister(struct cm_ll_data *cld)
 	return 0;
 }
 
-static const struct omap_prcm_init_data cm_data = {
+static struct omap_prcm_init_data cm_data = {
 	.index = CLK_MEMMAP_INDEX_CM1,
 };
 
-static const struct omap_prcm_init_data cm2_data = {
+static struct omap_prcm_init_data cm2_data = {
 	.index = CLK_MEMMAP_INDEX_CM2,
 };
 
+static struct omap_prcm_init_data omap3_cm_data = {
+	.index = CLK_MEMMAP_INDEX_CM1,
+
+	/*
+	 * IVA2 offset is negative value, must offset the cm_base address
+	 * by this to get it to positive
+	 */
+	.offset = -OMAP3430_IVA2_MOD,
+};
+
 static struct of_device_id omap_cm_dt_match_table[] = {
-	{ .compatible = "ti,omap3-cm", .data = &cm_data },
+	{ .compatible = "ti,omap3-cm", .data = &omap3_cm_data },
 	{ .compatible = "ti,omap4-cm1", .data = &cm_data },
 	{ .compatible = "ti,omap4-cm2", .data = &cm2_data },
 	{ .compatible = "ti,omap5-cm-core-aon", .data = &cm_data },
@@ -236,6 +246,39 @@ static struct of_device_id omap_cm_dt_match_table[] = {
 };
 
 /**
+ * omap2_cm_base_init - initialize iomappings for the CM drivers
+ *
+ * Detects and initializes the iomappings for the CM driver, based
+ * on the DT data. Returns 0 in success, negative error value
+ * otherwise.
+ */
+int __init omap2_cm_base_init(void)
+{
+	struct device_node *np;
+	const struct of_device_id *match;
+	struct omap_prcm_init_data *data;
+	void __iomem *mem;
+
+	for_each_matching_node_and_match(np, omap_cm_dt_match_table, &match) {
+		data = (struct omap_prcm_init_data *)match->data;
+
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+
+		if (data->index == CLK_MEMMAP_INDEX_CM1)
+			cm_base = mem + data->offset;
+
+		if (data->index == CLK_MEMMAP_INDEX_CM2)
+			cm2_base = mem + data->offset;
+
+		data->mem = mem;
+	}
+
+	return 0;
+}
+
+/**
  * omap_cm_init - low level init for the CM drivers
  *
  * Initializes the low level clock infrastructure for CM drivers.
@@ -246,17 +289,12 @@ int __init omap_cm_init(void)
 	struct device_node *np;
 	const struct of_device_id *match;
 	const struct omap_prcm_init_data *data;
-	void __iomem *mem;
 	int ret;
 
 	for_each_matching_node_and_match(np, omap_cm_dt_match_table, &match) {
 		data = match->data;
 
-		mem = of_iomap(np, 0);
-		if (!mem)
-			return -ENOMEM;
-
-		ret = omap2_clk_provider_init(np, data->index, mem);
+		ret = omap2_clk_provider_init(np, data->index, data->mem);
 		if (ret)
 			return ret;
 	}
diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c
index 9319034..4aed22d 100644
--- a/arch/arm/mach-omap2/cminst44xx.c
+++ b/arch/arm/mach-omap2/cminst44xx.c
@@ -516,6 +516,7 @@ static struct cm_ll_data omap4xxx_cm_ll_data = {
 
 int __init omap4_cm_init(void)
 {
+	omap2_cm_base_init();
 	omap_cm_base_init();
 
 	return cm_register(&omap4xxx_cm_ll_data);
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 1147320..9014eca 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -387,7 +387,6 @@ void __init omap2420_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
 				  NULL);
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE));
-	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE), NULL);
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -417,7 +416,6 @@ void __init omap2430_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
 				  NULL);
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE));
-	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE), NULL);
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -451,6 +449,8 @@ void __init omap3_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
 				  NULL);
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
+
+	/* XXX: remove this once OMAP3 is DT only */
 	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE), NULL);
 	omap3xxx_check_revision();
 	omap3xxx_check_features();
@@ -564,7 +564,6 @@ void __init am33xx_init_early(void)
 	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
 				  NULL);
 	omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE));
-	omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE), NULL);
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	am33xx_prm_init();
@@ -590,7 +589,6 @@ void __init am43xx_init_early(void)
 	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
 				  NULL);
 	omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE));
-	omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE), NULL);
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	omap44xx_prm_init();
@@ -617,8 +615,6 @@ void __init omap4430_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
 				  OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE));
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE));
-	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
-			     OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
@@ -650,8 +646,6 @@ void __init omap5_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
 				  OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE));
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE));
-	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_AON_BASE),
-			     OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
 	omap44xx_prm_init();
@@ -680,8 +674,6 @@ void __init dra7xx_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
 				  OMAP2_L4_IO_ADDRESS(DRA7XX_CTRL_BASE));
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE));
-	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(DRA7XX_CM_CORE_AON_BASE),
-			     OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
 	omap44xx_prm_init();
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index e260567..6a103c9 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -522,9 +522,13 @@ struct of_device_id;
 /**
  * struct omap_prcm_init_data - PRCM driver init data
  * @index: clock memory mapping index to be used
+ * @mem: IO mem pointer for this module
+ * @offset: module base address offset from the IO base
  */
 struct omap_prcm_init_data {
 	int index;
+	void __iomem *mem;
+	s16 offset;
 };
 
 extern void omap_prcm_irq_cleanup(void);
-- 
1.7.9.5

[PATCH 13/23] ARM: OMAP2+: CM: determine CM base address from device tree

[Tero Kristo]

There is no need to provide the CM base address through a low-level API
from the low-level IO init, as this information is available through DT.
Re-routed the parsing function to be called from the CM drivers also to
simplify the implementation under io.c.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/cm.h          |    1 +
 arch/arm/mach-omap2/cm2xxx.c      |    1 +
 arch/arm/mach-omap2/cm33xx.c      |    1 +
 arch/arm/mach-omap2/cm3xxx.c      |    1 +
 arch/arm/mach-omap2/cm_common.c   |   56 +++++++++++++++++++++++++++++++------
 arch/arm/mach-omap2/cminst44xx.c  |    1 +
 arch/arm/mach-omap2/io.c          |   12 ++------
 arch/arm/mach-omap2/prcm-common.h |    4 +++
 8 files changed, 58 insertions(+), 19 deletions(-)

diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h
index 748ac33..1fe3e6b 100644
--- a/arch/arm/mach-omap2/cm.h
+++ b/arch/arm/mach-omap2/cm.h
@@ -71,6 +71,7 @@ int omap_cm_module_disable(u8 part, u16 inst, u16 clkctrl_offs);
 extern int cm_register(struct cm_ll_data *cld);
 extern int cm_unregister(struct cm_ll_data *cld);
 int omap_cm_init(void);
+int omap2_cm_base_init(void);
 
 # endif
 
diff --git a/arch/arm/mach-omap2/cm2xxx.c b/arch/arm/mach-omap2/cm2xxx.c
index ef62ac9..f18c844 100644
--- a/arch/arm/mach-omap2/cm2xxx.c
+++ b/arch/arm/mach-omap2/cm2xxx.c
@@ -395,6 +395,7 @@ static struct cm_ll_data omap2xxx_cm_ll_data = {
 
 int __init omap2xxx_cm_init(void)
 {
+	omap2_cm_base_init();
 	return cm_register(&omap2xxx_cm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/cm33xx.c b/arch/arm/mach-omap2/cm33xx.c
index b9ad463..4c5038c 100644
--- a/arch/arm/mach-omap2/cm33xx.c
+++ b/arch/arm/mach-omap2/cm33xx.c
@@ -375,6 +375,7 @@ static struct cm_ll_data am33xx_cm_ll_data = {
 
 int __init am33xx_cm_init(void)
 {
+	omap2_cm_base_init();
 	return cm_register(&am33xx_cm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/cm3xxx.c b/arch/arm/mach-omap2/cm3xxx.c
index ebead8f..8e91f38 100644
--- a/arch/arm/mach-omap2/cm3xxx.c
+++ b/arch/arm/mach-omap2/cm3xxx.c
@@ -673,6 +673,7 @@ static struct cm_ll_data omap3xxx_cm_ll_data = {
 
 int __init omap3xxx_cm_init(void)
 {
+	omap2_cm_base_init();
 	return cm_register(&omap3xxx_cm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
index ff76cb7..c2d7c7b 100644
--- a/arch/arm/mach-omap2/cm_common.c
+++ b/arch/arm/mach-omap2/cm_common.c
@@ -216,16 +216,26 @@ int cm_unregister(struct cm_ll_data *cld)
 	return 0;
 }
 
-static const struct omap_prcm_init_data cm_data = {
+static struct omap_prcm_init_data cm_data = {
 	.index = CLK_MEMMAP_INDEX_CM1,
 };
 
-static const struct omap_prcm_init_data cm2_data = {
+static struct omap_prcm_init_data cm2_data = {
 	.index = CLK_MEMMAP_INDEX_CM2,
 };
 
+static struct omap_prcm_init_data omap3_cm_data = {
+	.index = CLK_MEMMAP_INDEX_CM1,
+
+	/*
+	 * IVA2 offset is negative value, must offset the cm_base address
+	 * by this to get it to positive
+	 */
+	.offset = -OMAP3430_IVA2_MOD,
+};
+
 static struct of_device_id omap_cm_dt_match_table[] = {
-	{ .compatible = "ti,omap3-cm", .data = &cm_data },
+	{ .compatible = "ti,omap3-cm", .data = &omap3_cm_data },
 	{ .compatible = "ti,omap4-cm1", .data = &cm_data },
 	{ .compatible = "ti,omap4-cm2", .data = &cm2_data },
 	{ .compatible = "ti,omap5-cm-core-aon", .data = &cm_data },
@@ -236,6 +246,39 @@ static struct of_device_id omap_cm_dt_match_table[] = {
 };
 
 /**
+ * omap2_cm_base_init - initialize iomappings for the CM drivers
+ *
+ * Detects and initializes the iomappings for the CM driver, based
+ * on the DT data. Returns 0 in success, negative error value
+ * otherwise.
+ */
+int __init omap2_cm_base_init(void)
+{
+	struct device_node *np;
+	const struct of_device_id *match;
+	struct omap_prcm_init_data *data;
+	void __iomem *mem;
+
+	for_each_matching_node_and_match(np, omap_cm_dt_match_table, &match) {
+		data = (struct omap_prcm_init_data *)match->data;
+
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+
+		if (data->index == CLK_MEMMAP_INDEX_CM1)
+			cm_base = mem + data->offset;
+
+		if (data->index == CLK_MEMMAP_INDEX_CM2)
+			cm2_base = mem + data->offset;
+
+		data->mem = mem;
+	}
+
+	return 0;
+}
+
+/**
  * omap_cm_init - low level init for the CM drivers
  *
  * Initializes the low level clock infrastructure for CM drivers.
@@ -246,17 +289,12 @@ int __init omap_cm_init(void)
 	struct device_node *np;
 	const struct of_device_id *match;
 	const struct omap_prcm_init_data *data;
-	void __iomem *mem;
 	int ret;
 
 	for_each_matching_node_and_match(np, omap_cm_dt_match_table, &match) {
 		data = match->data;
 
-		mem = of_iomap(np, 0);
-		if (!mem)
-			return -ENOMEM;
-
-		ret = omap2_clk_provider_init(np, data->index, mem);
+		ret = omap2_clk_provider_init(np, data->index, data->mem);
 		if (ret)
 			return ret;
 	}
diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c
index 9319034..4aed22d 100644
--- a/arch/arm/mach-omap2/cminst44xx.c
+++ b/arch/arm/mach-omap2/cminst44xx.c
@@ -516,6 +516,7 @@ static struct cm_ll_data omap4xxx_cm_ll_data = {
 
 int __init omap4_cm_init(void)
 {
+	omap2_cm_base_init();
 	omap_cm_base_init();
 
 	return cm_register(&omap4xxx_cm_ll_data);
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 1147320..9014eca 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -387,7 +387,6 @@ void __init omap2420_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
 				  NULL);
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE));
-	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE), NULL);
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -417,7 +416,6 @@ void __init omap2430_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
 				  NULL);
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE));
-	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE), NULL);
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -451,6 +449,8 @@ void __init omap3_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
 				  NULL);
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
+
+	/* XXX: remove this once OMAP3 is DT only */
 	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE), NULL);
 	omap3xxx_check_revision();
 	omap3xxx_check_features();
@@ -564,7 +564,6 @@ void __init am33xx_init_early(void)
 	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
 				  NULL);
 	omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE));
-	omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE), NULL);
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	am33xx_prm_init();
@@ -590,7 +589,6 @@ void __init am43xx_init_early(void)
 	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
 				  NULL);
 	omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE));
-	omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE), NULL);
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	omap44xx_prm_init();
@@ -617,8 +615,6 @@ void __init omap4430_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
 				  OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE));
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE));
-	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
-			     OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
@@ -650,8 +646,6 @@ void __init omap5_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
 				  OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE));
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE));
-	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_AON_BASE),
-			     OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
 	omap44xx_prm_init();
@@ -680,8 +674,6 @@ void __init dra7xx_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
 				  OMAP2_L4_IO_ADDRESS(DRA7XX_CTRL_BASE));
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE));
-	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(DRA7XX_CM_CORE_AON_BASE),
-			     OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
 	omap44xx_prm_init();
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index e260567..6a103c9 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -522,9 +522,13 @@ struct of_device_id;
 /**
  * struct omap_prcm_init_data - PRCM driver init data
  * @index: clock memory mapping index to be used
+ * @mem: IO mem pointer for this module
+ * @offset: module base address offset from the IO base
  */
 struct omap_prcm_init_data {
 	int index;
+	void __iomem *mem;
+	s16 offset;
 };
 
 extern void omap_prcm_irq_cleanup(void);
-- 
1.7.9.5

[PATCH 14/23] ARM: OMAP4: PRM: move omap4xxx_prm_init earlier in init order

[Tero Kristo]

OMAP4 has different ordering of PRM and CM init calls in the early init.
Re-oder these accordingly for OMAP4 also. This is needed so that we
can do some optimizations in the following patches for the PRCM init.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/io.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 9014eca..8af8411 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -618,9 +618,9 @@ void __init omap4430_init_early(void)
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
+	omap44xx_prm_init();
 	omap4_cm_init();
 	omap4_pm_init_early();
-	omap44xx_prm_init();
 	omap44xx_voltagedomains_init();
 	omap44xx_powerdomains_init();
 	omap44xx_clockdomains_init();
-- 
1.7.9.5

[PATCH 14/23] ARM: OMAP4: PRM: move omap4xxx_prm_init earlier in init order

[Tero Kristo]

OMAP4 has different ordering of PRM and CM init calls in the early init.
Re-oder these accordingly for OMAP4 also. This is needed so that we
can do some optimizations in the following patches for the PRCM init.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/io.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 9014eca..8af8411 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -618,9 +618,9 @@ void __init omap4430_init_early(void)
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
+	omap44xx_prm_init();
 	omap4_cm_init();
 	omap4_pm_init_early();
-	omap44xx_prm_init();
 	omap44xx_voltagedomains_init();
 	omap44xx_powerdomains_init();
 	omap44xx_clockdomains_init();
-- 
1.7.9.5

[PATCH 15/23] ARM: OMAP2+: PRM: determine PRM base address from device tree

[Tero Kristo]

There is no need to provide the PRM base address through a low-level API
from the low-level IO init, as this information is available through DT.
Re-routed the parsing function to be called from the PRM drivers also to
simplify the implementation under io.c.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/io.c         |   11 ++------
 arch/arm/mach-omap2/prm.h        |    1 +
 arch/arm/mach-omap2/prm2xxx.c    |    1 +
 arch/arm/mach-omap2/prm33xx.c    |    1 +
 arch/arm/mach-omap2/prm3xxx.c    |    2 ++
 arch/arm/mach-omap2/prm44xx.c    |    1 +
 arch/arm/mach-omap2/prm_common.c |   53 +++++++++++++++++++++++++++++++-------
 7 files changed, 52 insertions(+), 18 deletions(-)

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 8af8411..6a94345 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -386,7 +386,6 @@ void __init omap2420_init_early(void)
 			       OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE));
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
 				  NULL);
-	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE));
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -415,7 +414,6 @@ void __init omap2430_init_early(void)
 			       OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE));
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
 				  NULL);
-	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE));
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -448,9 +446,8 @@ void __init omap3_init_early(void)
 			       OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE));
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
 				  NULL);
+	/* XXX: remove these two once OMAP3 is DT only */
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
-
-	/* XXX: remove this once OMAP3 is DT only */
 	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE), NULL);
 	omap3xxx_check_revision();
 	omap3xxx_check_features();
@@ -498,6 +495,7 @@ void __init ti81xx_init_early(void)
 			      OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE));
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE),
 				  NULL);
+	/* XXX: remove these two once TI81xx is DT only */
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE));
 	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE), NULL);
 	omap3xxx_check_revision();
@@ -563,7 +561,6 @@ void __init am33xx_init_early(void)
 			      AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
 	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
 				  NULL);
-	omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE));
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	am33xx_prm_init();
@@ -588,7 +585,6 @@ void __init am43xx_init_early(void)
 			      AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
 	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
 				  NULL);
-	omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE));
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	omap44xx_prm_init();
@@ -614,7 +610,6 @@ void __init omap4430_init_early(void)
 			      OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE));
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
 				  OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE));
-	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
@@ -645,7 +640,6 @@ void __init omap5_init_early(void)
 			      OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
 				  OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE));
-	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
 	omap44xx_prm_init();
@@ -673,7 +667,6 @@ void __init dra7xx_init_early(void)
 	omap2_set_globals_tap(-1, OMAP2_L4_IO_ADDRESS(DRA7XX_TAP_BASE));
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
 				  OMAP2_L4_IO_ADDRESS(DRA7XX_CTRL_BASE));
-	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
 	omap44xx_prm_init();
diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index 6521eaa..6707333 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -20,6 +20,7 @@ extern void __iomem *prm_base;
 extern u16 prm_features;
 extern void omap2_set_globals_prm(void __iomem *prm);
 int omap_prcm_init(void);
+int omap2_prm_base_init(void);
 # endif
 
 /*
diff --git a/arch/arm/mach-omap2/prm2xxx.c b/arch/arm/mach-omap2/prm2xxx.c
index bacb05e..29e203f 100644
--- a/arch/arm/mach-omap2/prm2xxx.c
+++ b/arch/arm/mach-omap2/prm2xxx.c
@@ -222,6 +222,7 @@ static struct prm_ll_data omap2xxx_prm_ll_data = {
 
 int __init omap2xxx_prm_init(void)
 {
+	omap2_prm_base_init();
 	return prm_register(&omap2xxx_prm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/prm33xx.c b/arch/arm/mach-omap2/prm33xx.c
index 02f6286..1e052aa 100644
--- a/arch/arm/mach-omap2/prm33xx.c
+++ b/arch/arm/mach-omap2/prm33xx.c
@@ -380,6 +380,7 @@ static struct prm_ll_data am33xx_prm_ll_data = {
 
 int __init am33xx_prm_init(void)
 {
+	omap2_prm_base_init();
 	return prm_register(&am33xx_prm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 8993ab7..994fb8b 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -671,6 +671,8 @@ static struct prm_ll_data omap3xxx_prm_ll_data = {
 
 int __init omap3xxx_prm_init(void)
 {
+	omap2_prm_base_init();
+
 	if (omap3_has_io_wakeup())
 		prm_features |= PRM_HAS_IO_WAKEUP;
 
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index 2692339..016759f 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -704,6 +704,7 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
 
 int __init omap44xx_prm_init(void)
 {
+	omap2_prm_base_init();
 	omap_prm_base_init();
 
 	if (cpu_is_omap44xx() || soc_is_omap54xx() || soc_is_dra7xx())
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 21e9d16..7d4a97a 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -622,11 +622,21 @@ int prm_unregister(struct prm_ll_data *pld)
 	return 0;
 }
 
-static const struct omap_prcm_init_data prm_data = {
+static struct omap_prcm_init_data prm_data = {
 	.index = CLK_MEMMAP_INDEX_PRM,
 };
 
-static const struct omap_prcm_init_data scrm_data = {
+static struct omap_prcm_init_data omap3_prm_data = {
+	.index = CLK_MEMMAP_INDEX_PRM,
+
+	/*
+	 * IVA2 offset is negative value, must offset the cm_base address
+	 * by this to get it to positive
+	 */
+	.offset = -OMAP3430_IVA2_MOD,
+};
+
+static struct omap_prcm_init_data scrm_data = {
 	.index = CLK_MEMMAP_INDEX_SCRM,
 };
 
@@ -634,7 +644,7 @@ static struct of_device_id omap_prcm_dt_match_table[] = {
 	{ .compatible = "ti,am3-prcm", .data = &prm_data },
 	{ .compatible = "ti,am4-prcm", .data = &prm_data },
 	{ .compatible = "ti,omap2-prcm", .data = &prm_data },
-	{ .compatible = "ti,omap3-prm", .data = &prm_data },
+	{ .compatible = "ti,omap3-prm", .data = &omap3_prm_data },
 	{ .compatible = "ti,omap4-prm", .data = &prm_data },
 	{ .compatible = "ti,omap4-scrm", .data = &scrm_data },
 	{ .compatible = "ti,omap5-prm", .data = &prm_data },
@@ -644,6 +654,36 @@ static struct of_device_id omap_prcm_dt_match_table[] = {
 };
 
 /**
+ * omap2_prm_base_init - initialize iomappings for the PRM driver
+ *
+ * Detects and initializes the iomappings for the PRM driver, based
+ * on the DT data. Returns 0 in success, negative error value
+ * otherwise.
+ */
+int __init omap2_prm_base_init(void)
+{
+	struct device_node *np;
+	const struct of_device_id *match;
+	struct omap_prcm_init_data *data;
+	void __iomem *mem;
+
+	for_each_matching_node_and_match(np, omap_prcm_dt_match_table, &match) {
+		data = (struct omap_prcm_init_data *)match->data;
+
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+
+		if (data->index == CLK_MEMMAP_INDEX_PRM)
+			prm_base = mem + data->offset;
+
+		data->mem = mem;
+	}
+
+	return 0;
+}
+
+/**
  * omap_prcm_init - low level init for the PRCM drivers
  *
  * Initializes the low level clock infrastructure for PRCM drivers.
@@ -654,17 +694,12 @@ int __init omap_prcm_init(void)
 	struct device_node *np;
 	const struct of_device_id *match;
 	const struct omap_prcm_init_data *data;
-	void __iomem *mem;
 	int ret;
 
 	for_each_matching_node_and_match(np, omap_prcm_dt_match_table, &match) {
 		data = match->data;
 
-		mem = of_iomap(np, 0);
-		if (!mem)
-			return -ENOMEM;
-
-		ret = omap2_clk_provider_init(np, data->index, mem);
+		ret = omap2_clk_provider_init(np, data->index, data->mem);
 		if (ret)
 			return ret;
 	}
-- 
1.7.9.5

[PATCH 15/23] ARM: OMAP2+: PRM: determine PRM base address from device tree

[Tero Kristo]

There is no need to provide the PRM base address through a low-level API
from the low-level IO init, as this information is available through DT.
Re-routed the parsing function to be called from the PRM drivers also to
simplify the implementation under io.c.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/io.c         |   11 ++------
 arch/arm/mach-omap2/prm.h        |    1 +
 arch/arm/mach-omap2/prm2xxx.c    |    1 +
 arch/arm/mach-omap2/prm33xx.c    |    1 +
 arch/arm/mach-omap2/prm3xxx.c    |    2 ++
 arch/arm/mach-omap2/prm44xx.c    |    1 +
 arch/arm/mach-omap2/prm_common.c |   53 +++++++++++++++++++++++++++++++-------
 7 files changed, 52 insertions(+), 18 deletions(-)

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 8af8411..6a94345 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -386,7 +386,6 @@ void __init omap2420_init_early(void)
 			       OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE));
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
 				  NULL);
-	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE));
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -415,7 +414,6 @@ void __init omap2430_init_early(void)
 			       OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE));
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
 				  NULL);
-	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE));
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -448,9 +446,8 @@ void __init omap3_init_early(void)
 			       OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE));
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
 				  NULL);
+	/* XXX: remove these two once OMAP3 is DT only */
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
-
-	/* XXX: remove this once OMAP3 is DT only */
 	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE), NULL);
 	omap3xxx_check_revision();
 	omap3xxx_check_features();
@@ -498,6 +495,7 @@ void __init ti81xx_init_early(void)
 			      OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE));
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE),
 				  NULL);
+	/* XXX: remove these two once TI81xx is DT only */
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE));
 	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE), NULL);
 	omap3xxx_check_revision();
@@ -563,7 +561,6 @@ void __init am33xx_init_early(void)
 			      AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
 	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
 				  NULL);
-	omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE));
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	am33xx_prm_init();
@@ -588,7 +585,6 @@ void __init am43xx_init_early(void)
 			      AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
 	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
 				  NULL);
-	omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE));
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	omap44xx_prm_init();
@@ -614,7 +610,6 @@ void __init omap4430_init_early(void)
 			      OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE));
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
 				  OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE));
-	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
@@ -645,7 +640,6 @@ void __init omap5_init_early(void)
 			      OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
 				  OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE));
-	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
 	omap44xx_prm_init();
@@ -673,7 +667,6 @@ void __init dra7xx_init_early(void)
 	omap2_set_globals_tap(-1, OMAP2_L4_IO_ADDRESS(DRA7XX_TAP_BASE));
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
 				  OMAP2_L4_IO_ADDRESS(DRA7XX_CTRL_BASE));
-	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
 	omap44xx_prm_init();
diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index 6521eaa..6707333 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -20,6 +20,7 @@ extern void __iomem *prm_base;
 extern u16 prm_features;
 extern void omap2_set_globals_prm(void __iomem *prm);
 int omap_prcm_init(void);
+int omap2_prm_base_init(void);
 # endif
 
 /*
diff --git a/arch/arm/mach-omap2/prm2xxx.c b/arch/arm/mach-omap2/prm2xxx.c
index bacb05e..29e203f 100644
--- a/arch/arm/mach-omap2/prm2xxx.c
+++ b/arch/arm/mach-omap2/prm2xxx.c
@@ -222,6 +222,7 @@ static struct prm_ll_data omap2xxx_prm_ll_data = {
 
 int __init omap2xxx_prm_init(void)
 {
+	omap2_prm_base_init();
 	return prm_register(&omap2xxx_prm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/prm33xx.c b/arch/arm/mach-omap2/prm33xx.c
index 02f6286..1e052aa 100644
--- a/arch/arm/mach-omap2/prm33xx.c
+++ b/arch/arm/mach-omap2/prm33xx.c
@@ -380,6 +380,7 @@ static struct prm_ll_data am33xx_prm_ll_data = {
 
 int __init am33xx_prm_init(void)
 {
+	omap2_prm_base_init();
 	return prm_register(&am33xx_prm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 8993ab7..994fb8b 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -671,6 +671,8 @@ static struct prm_ll_data omap3xxx_prm_ll_data = {
 
 int __init omap3xxx_prm_init(void)
 {
+	omap2_prm_base_init();
+
 	if (omap3_has_io_wakeup())
 		prm_features |= PRM_HAS_IO_WAKEUP;
 
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index 2692339..016759f 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -704,6 +704,7 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
 
 int __init omap44xx_prm_init(void)
 {
+	omap2_prm_base_init();
 	omap_prm_base_init();
 
 	if (cpu_is_omap44xx() || soc_is_omap54xx() || soc_is_dra7xx())
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 21e9d16..7d4a97a 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -622,11 +622,21 @@ int prm_unregister(struct prm_ll_data *pld)
 	return 0;
 }
 
-static const struct omap_prcm_init_data prm_data = {
+static struct omap_prcm_init_data prm_data = {
 	.index = CLK_MEMMAP_INDEX_PRM,
 };
 
-static const struct omap_prcm_init_data scrm_data = {
+static struct omap_prcm_init_data omap3_prm_data = {
+	.index = CLK_MEMMAP_INDEX_PRM,
+
+	/*
+	 * IVA2 offset is negative value, must offset the cm_base address
+	 * by this to get it to positive
+	 */
+	.offset = -OMAP3430_IVA2_MOD,
+};
+
+static struct omap_prcm_init_data scrm_data = {
 	.index = CLK_MEMMAP_INDEX_SCRM,
 };
 
@@ -634,7 +644,7 @@ static struct of_device_id omap_prcm_dt_match_table[] = {
 	{ .compatible = "ti,am3-prcm", .data = &prm_data },
 	{ .compatible = "ti,am4-prcm", .data = &prm_data },
 	{ .compatible = "ti,omap2-prcm", .data = &prm_data },
-	{ .compatible = "ti,omap3-prm", .data = &prm_data },
+	{ .compatible = "ti,omap3-prm", .data = &omap3_prm_data },
 	{ .compatible = "ti,omap4-prm", .data = &prm_data },
 	{ .compatible = "ti,omap4-scrm", .data = &scrm_data },
 	{ .compatible = "ti,omap5-prm", .data = &prm_data },
@@ -644,6 +654,36 @@ static struct of_device_id omap_prcm_dt_match_table[] = {
 };
 
 /**
+ * omap2_prm_base_init - initialize iomappings for the PRM driver
+ *
+ * Detects and initializes the iomappings for the PRM driver, based
+ * on the DT data. Returns 0 in success, negative error value
+ * otherwise.
+ */
+int __init omap2_prm_base_init(void)
+{
+	struct device_node *np;
+	const struct of_device_id *match;
+	struct omap_prcm_init_data *data;
+	void __iomem *mem;
+
+	for_each_matching_node_and_match(np, omap_prcm_dt_match_table, &match) {
+		data = (struct omap_prcm_init_data *)match->data;
+
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+
+		if (data->index == CLK_MEMMAP_INDEX_PRM)
+			prm_base = mem + data->offset;
+
+		data->mem = mem;
+	}
+
+	return 0;
+}
+
+/**
  * omap_prcm_init - low level init for the PRCM drivers
  *
  * Initializes the low level clock infrastructure for PRCM drivers.
@@ -654,17 +694,12 @@ int __init omap_prcm_init(void)
 	struct device_node *np;
 	const struct of_device_id *match;
 	const struct omap_prcm_init_data *data;
-	void __iomem *mem;
 	int ret;
 
 	for_each_matching_node_and_match(np, omap_prcm_dt_match_table, &match) {
 		data = match->data;
 
-		mem = of_iomap(np, 0);
-		if (!mem)
-			return -ENOMEM;
-
-		ret = omap2_clk_provider_init(np, data->index, mem);
+		ret = omap2_clk_provider_init(np, data->index, data->mem);
 		if (ret)
 			return ret;
 	}
-- 
1.7.9.5

[PATCH 16/23] ARM: OMAP4: omapdss: remove legacy pad muxing support

[Tero Kristo]

OMAP4 is DT only now, so the legacy mux support is not needed anymore.
Padconf is used instead from the driver / DT. This removes the need
for having the mux APIs exported from the control module driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 arch/arm/mach-omap2/display.c |   38 --------------------------------------
 1 file changed, 38 deletions(-)

diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 7a050f9..c5a4592 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -104,51 +104,13 @@ static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initconst = {
 	{ "dss_hdmi", "omapdss_hdmi", -1 },
 };
 
-static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes)
-{
-	u32 enable_mask, enable_shift;
-	u32 pipd_mask, pipd_shift;
-	u32 reg;
-
-	if (dsi_id == 0) {
-		enable_mask = OMAP4_DSI1_LANEENABLE_MASK;
-		enable_shift = OMAP4_DSI1_LANEENABLE_SHIFT;
-		pipd_mask = OMAP4_DSI1_PIPD_MASK;
-		pipd_shift = OMAP4_DSI1_PIPD_SHIFT;
-	} else if (dsi_id == 1) {
-		enable_mask = OMAP4_DSI2_LANEENABLE_MASK;
-		enable_shift = OMAP4_DSI2_LANEENABLE_SHIFT;
-		pipd_mask = OMAP4_DSI2_PIPD_MASK;
-		pipd_shift = OMAP4_DSI2_PIPD_SHIFT;
-	} else {
-		return -ENODEV;
-	}
-
-	reg = omap4_ctrl_pad_readl(OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY);
-
-	reg &= ~enable_mask;
-	reg &= ~pipd_mask;
-
-	reg |= (lanes << enable_shift) & enable_mask;
-	reg |= (lanes << pipd_shift) & pipd_mask;
-
-	omap4_ctrl_pad_writel(reg, OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY);
-
-	return 0;
-}
-
 static int omap_dsi_enable_pads(int dsi_id, unsigned lane_mask)
 {
-	if (cpu_is_omap44xx())
-		return omap4_dsi_mux_pads(dsi_id, lane_mask);
-
 	return 0;
 }
 
 static void omap_dsi_disable_pads(int dsi_id, unsigned lane_mask)
 {
-	if (cpu_is_omap44xx())
-		omap4_dsi_mux_pads(dsi_id, 0);
 }
 
 static int omap_dss_set_min_bus_tput(struct device *dev, unsigned long tput)
-- 
1.7.9.5

[PATCH 16/23] ARM: OMAP4: omapdss: remove legacy pad muxing support

[Tero Kristo]

OMAP4 is DT only now, so the legacy mux support is not needed anymore.
Padconf is used instead from the driver / DT. This removes the need
for having the mux APIs exported from the control module driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 arch/arm/mach-omap2/display.c |   38 --------------------------------------
 1 file changed, 38 deletions(-)

diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 7a050f9..c5a4592 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -104,51 +104,13 @@ static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initconst = {
 	{ "dss_hdmi", "omapdss_hdmi", -1 },
 };
 
-static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes)
-{
-	u32 enable_mask, enable_shift;
-	u32 pipd_mask, pipd_shift;
-	u32 reg;
-
-	if (dsi_id == 0) {
-		enable_mask = OMAP4_DSI1_LANEENABLE_MASK;
-		enable_shift = OMAP4_DSI1_LANEENABLE_SHIFT;
-		pipd_mask = OMAP4_DSI1_PIPD_MASK;
-		pipd_shift = OMAP4_DSI1_PIPD_SHIFT;
-	} else if (dsi_id == 1) {
-		enable_mask = OMAP4_DSI2_LANEENABLE_MASK;
-		enable_shift = OMAP4_DSI2_LANEENABLE_SHIFT;
-		pipd_mask = OMAP4_DSI2_PIPD_MASK;
-		pipd_shift = OMAP4_DSI2_PIPD_SHIFT;
-	} else {
-		return -ENODEV;
-	}
-
-	reg = omap4_ctrl_pad_readl(OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY);
-
-	reg &= ~enable_mask;
-	reg &= ~pipd_mask;
-
-	reg |= (lanes << enable_shift) & enable_mask;
-	reg |= (lanes << pipd_shift) & pipd_mask;
-
-	omap4_ctrl_pad_writel(reg, OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY);
-
-	return 0;
-}
-
 static int omap_dsi_enable_pads(int dsi_id, unsigned lane_mask)
 {
-	if (cpu_is_omap44xx())
-		return omap4_dsi_mux_pads(dsi_id, lane_mask);
-
 	return 0;
 }
 
 static void omap_dsi_disable_pads(int dsi_id, unsigned lane_mask)
 {
-	if (cpu_is_omap44xx())
-		omap4_dsi_mux_pads(dsi_id, 0);
 }
 
 static int omap_dss_set_min_bus_tput(struct device *dev, unsigned long tput)
-- 
1.7.9.5

[PATCH 17/23] ARM: OMAP4: control: remove support for legacy padconf APIs

[Tero Kristo]

These are no longer needed for anything with the introduction of
pinctrl DT support, thus removed.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/control.c |   23 +----------------------
 arch/arm/mach-omap2/control.h |    5 +----
 arch/arm/mach-omap2/io.c      |   27 +++++++++------------------
 3 files changed, 11 insertions(+), 44 deletions(-)

diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index f9519f1..e664dba 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -33,7 +33,6 @@
 #define PADCONF_SAVE_DONE		0x1
 
 static void __iomem *omap2_ctrl_base;
-static void __iomem *omap4_ctrl_pad_base;
 
 #if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM)
 struct omap3_scratchpad {
@@ -136,13 +135,10 @@ static struct omap3_control_regs control_context;
 #endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */
 
 #define OMAP_CTRL_REGADDR(reg)		(omap2_ctrl_base + (reg))
-#define OMAP4_CTRL_PAD_REGADDR(reg)	(omap4_ctrl_pad_base + (reg))
 
-void __init omap2_set_globals_control(void __iomem *ctrl,
-				      void __iomem *ctrl_pad)
+void __init omap2_set_globals_control(void __iomem *ctrl)
 {
 	omap2_ctrl_base = ctrl;
-	omap4_ctrl_pad_base = ctrl_pad;
 }
 
 void __iomem *omap_ctrl_base_get(void)
@@ -180,23 +176,6 @@ void omap_ctrl_writel(u32 val, u16 offset)
 	writel_relaxed(val, OMAP_CTRL_REGADDR(offset));
 }
 
-/*
- * On OMAP4 control pad are not addressable from control
- * core base. So the common omap_ctrl_read/write APIs breaks
- * Hence export separate APIs to manage the omap4 pad control
- * registers. This APIs will work only for OMAP4
- */
-
-u32 omap4_ctrl_pad_readl(u16 offset)
-{
-	return readl_relaxed(OMAP4_CTRL_PAD_REGADDR(offset));
-}
-
-void omap4_ctrl_pad_writel(u32 val, u16 offset)
-{
-	writel_relaxed(val, OMAP4_CTRL_PAD_REGADDR(offset));
-}
-
 #ifdef CONFIG_ARCH_OMAP3
 
 /**
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index 8a9d97d7..c08c00f 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -436,11 +436,9 @@ extern void __iomem *omap_ctrl_base_get(void);
 extern u8 omap_ctrl_readb(u16 offset);
 extern u16 omap_ctrl_readw(u16 offset);
 extern u32 omap_ctrl_readl(u16 offset);
-extern u32 omap4_ctrl_pad_readl(u16 offset);
 extern void omap_ctrl_writeb(u8 val, u16 offset);
 extern void omap_ctrl_writew(u16 val, u16 offset);
 extern void omap_ctrl_writel(u32 val, u16 offset);
-extern void omap4_ctrl_pad_writel(u32 val, u16 offset);
 
 extern void omap3_save_scratchpad_contents(void);
 extern void omap3_clear_scratchpad_contents(void);
@@ -457,8 +455,7 @@ extern void omap3630_ctrl_disable_rta(void);
 extern int omap3_ctrl_save_padconf(void);
 void omap3_ctrl_init(void);
 int omap_control_init(void);
-extern void omap2_set_globals_control(void __iomem *ctrl,
-				      void __iomem *ctrl_pad);
+void omap2_set_globals_control(void __iomem *ctrl);
 #else
 #define omap_ctrl_base_get()		0
 #define omap_ctrl_readb(x)		0
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 6a94345..3a61b31 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -384,8 +384,7 @@ void __init omap2420_init_early(void)
 	omap2_set_globals_tap(OMAP242X_CLASS, OMAP2_L4_IO_ADDRESS(0x48014000));
 	omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
 			       OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
-				  NULL);
+	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE));
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -412,8 +411,7 @@ void __init omap2430_init_early(void)
 	omap2_set_globals_tap(OMAP243X_CLASS, OMAP2_L4_IO_ADDRESS(0x4900a000));
 	omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
 			       OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
-				  NULL);
+	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE));
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -444,8 +442,7 @@ void __init omap3_init_early(void)
 	omap2_set_globals_tap(OMAP343X_CLASS, OMAP2_L4_IO_ADDRESS(0x4830A000));
 	omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
 			       OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
-				  NULL);
+	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE));
 	/* XXX: remove these two once OMAP3 is DT only */
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
 	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE), NULL);
@@ -493,8 +490,7 @@ void __init ti81xx_init_early(void)
 {
 	omap2_set_globals_tap(OMAP343X_CLASS,
 			      OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE),
-				  NULL);
+	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE));
 	/* XXX: remove these two once TI81xx is DT only */
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE));
 	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE), NULL);
@@ -559,8 +555,7 @@ void __init am33xx_init_early(void)
 {
 	omap2_set_globals_tap(AM335X_CLASS,
 			      AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
-	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
-				  NULL);
+	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE));
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	am33xx_prm_init();
@@ -583,8 +578,7 @@ void __init am43xx_init_early(void)
 {
 	omap2_set_globals_tap(AM335X_CLASS,
 			      AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
-	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
-				  NULL);
+	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE));
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	omap44xx_prm_init();
@@ -608,8 +602,7 @@ void __init omap4430_init_early(void)
 {
 	omap2_set_globals_tap(OMAP443X_CLASS,
 			      OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
-				  OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE));
+	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
@@ -638,8 +631,7 @@ void __init omap5_init_early(void)
 {
 	omap2_set_globals_tap(OMAP54XX_CLASS,
 			      OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
-				  OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE));
+	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
 	omap44xx_prm_init();
@@ -665,8 +657,7 @@ void __init omap5_init_late(void)
 void __init dra7xx_init_early(void)
 {
 	omap2_set_globals_tap(-1, OMAP2_L4_IO_ADDRESS(DRA7XX_TAP_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
-				  OMAP2_L4_IO_ADDRESS(DRA7XX_CTRL_BASE));
+	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
 	omap44xx_prm_init();
-- 
1.7.9.5

[PATCH 17/23] ARM: OMAP4: control: remove support for legacy padconf APIs

[Tero Kristo]

These are no longer needed for anything with the introduction of
pinctrl DT support, thus removed.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/control.c |   23 +----------------------
 arch/arm/mach-omap2/control.h |    5 +----
 arch/arm/mach-omap2/io.c      |   27 +++++++++------------------
 3 files changed, 11 insertions(+), 44 deletions(-)

diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index f9519f1..e664dba 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -33,7 +33,6 @@
 #define PADCONF_SAVE_DONE		0x1
 
 static void __iomem *omap2_ctrl_base;
-static void __iomem *omap4_ctrl_pad_base;
 
 #if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM)
 struct omap3_scratchpad {
@@ -136,13 +135,10 @@ static struct omap3_control_regs control_context;
 #endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */
 
 #define OMAP_CTRL_REGADDR(reg)		(omap2_ctrl_base + (reg))
-#define OMAP4_CTRL_PAD_REGADDR(reg)	(omap4_ctrl_pad_base + (reg))
 
-void __init omap2_set_globals_control(void __iomem *ctrl,
-				      void __iomem *ctrl_pad)
+void __init omap2_set_globals_control(void __iomem *ctrl)
 {
 	omap2_ctrl_base = ctrl;
-	omap4_ctrl_pad_base = ctrl_pad;
 }
 
 void __iomem *omap_ctrl_base_get(void)
@@ -180,23 +176,6 @@ void omap_ctrl_writel(u32 val, u16 offset)
 	writel_relaxed(val, OMAP_CTRL_REGADDR(offset));
 }
 
-/*
- * On OMAP4 control pad are not addressable from control
- * core base. So the common omap_ctrl_read/write APIs breaks
- * Hence export separate APIs to manage the omap4 pad control
- * registers. This APIs will work only for OMAP4
- */
-
-u32 omap4_ctrl_pad_readl(u16 offset)
-{
-	return readl_relaxed(OMAP4_CTRL_PAD_REGADDR(offset));
-}
-
-void omap4_ctrl_pad_writel(u32 val, u16 offset)
-{
-	writel_relaxed(val, OMAP4_CTRL_PAD_REGADDR(offset));
-}
-
 #ifdef CONFIG_ARCH_OMAP3
 
 /**
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index 8a9d97d7..c08c00f 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -436,11 +436,9 @@ extern void __iomem *omap_ctrl_base_get(void);
 extern u8 omap_ctrl_readb(u16 offset);
 extern u16 omap_ctrl_readw(u16 offset);
 extern u32 omap_ctrl_readl(u16 offset);
-extern u32 omap4_ctrl_pad_readl(u16 offset);
 extern void omap_ctrl_writeb(u8 val, u16 offset);
 extern void omap_ctrl_writew(u16 val, u16 offset);
 extern void omap_ctrl_writel(u32 val, u16 offset);
-extern void omap4_ctrl_pad_writel(u32 val, u16 offset);
 
 extern void omap3_save_scratchpad_contents(void);
 extern void omap3_clear_scratchpad_contents(void);
@@ -457,8 +455,7 @@ extern void omap3630_ctrl_disable_rta(void);
 extern int omap3_ctrl_save_padconf(void);
 void omap3_ctrl_init(void);
 int omap_control_init(void);
-extern void omap2_set_globals_control(void __iomem *ctrl,
-				      void __iomem *ctrl_pad);
+void omap2_set_globals_control(void __iomem *ctrl);
 #else
 #define omap_ctrl_base_get()		0
 #define omap_ctrl_readb(x)		0
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 6a94345..3a61b31 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -384,8 +384,7 @@ void __init omap2420_init_early(void)
 	omap2_set_globals_tap(OMAP242X_CLASS, OMAP2_L4_IO_ADDRESS(0x48014000));
 	omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
 			       OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
-				  NULL);
+	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE));
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -412,8 +411,7 @@ void __init omap2430_init_early(void)
 	omap2_set_globals_tap(OMAP243X_CLASS, OMAP2_L4_IO_ADDRESS(0x4900a000));
 	omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
 			       OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
-				  NULL);
+	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE));
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -444,8 +442,7 @@ void __init omap3_init_early(void)
 	omap2_set_globals_tap(OMAP343X_CLASS, OMAP2_L4_IO_ADDRESS(0x4830A000));
 	omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
 			       OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
-				  NULL);
+	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE));
 	/* XXX: remove these two once OMAP3 is DT only */
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
 	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE), NULL);
@@ -493,8 +490,7 @@ void __init ti81xx_init_early(void)
 {
 	omap2_set_globals_tap(OMAP343X_CLASS,
 			      OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE),
-				  NULL);
+	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE));
 	/* XXX: remove these two once TI81xx is DT only */
 	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE));
 	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE), NULL);
@@ -559,8 +555,7 @@ void __init am33xx_init_early(void)
 {
 	omap2_set_globals_tap(AM335X_CLASS,
 			      AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
-	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
-				  NULL);
+	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE));
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	am33xx_prm_init();
@@ -583,8 +578,7 @@ void __init am43xx_init_early(void)
 {
 	omap2_set_globals_tap(AM335X_CLASS,
 			      AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
-	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
-				  NULL);
+	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE));
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	omap44xx_prm_init();
@@ -608,8 +602,7 @@ void __init omap4430_init_early(void)
 {
 	omap2_set_globals_tap(OMAP443X_CLASS,
 			      OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
-				  OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE));
+	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
@@ -638,8 +631,7 @@ void __init omap5_init_early(void)
 {
 	omap2_set_globals_tap(OMAP54XX_CLASS,
 			      OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
-				  OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE));
+	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
 	omap44xx_prm_init();
@@ -665,8 +657,7 @@ void __init omap5_init_late(void)
 void __init dra7xx_init_early(void)
 {
 	omap2_set_globals_tap(-1, OMAP2_L4_IO_ADDRESS(DRA7XX_TAP_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
-				  OMAP2_L4_IO_ADDRESS(DRA7XX_CTRL_BASE));
+	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
 	omap44xx_prm_init();
-- 
1.7.9.5

[PATCH 18/23] ARM: OMAP2+: control: determine control module base address from DT

[Tero Kristo]

There is no need to provide the control module base address through a
low-level API from the low-level IO init, as this information is
available through DT. This patch adds a new API to initialize the
control module though, but mostly makes the old API obsolete. The
old API can be completely removed once OMAP3 is made DT only.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/control.c |   36 ++++++++++++++++++++++++++++++------
 arch/arm/mach-omap2/control.h |    1 +
 arch/arm/mach-omap2/io.c      |   34 ++++++++++++++++++++++------------
 3 files changed, 53 insertions(+), 18 deletions(-)

diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index e664dba..7067807 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -595,6 +595,7 @@ void __init omap3_ctrl_init(void)
 
 struct control_init_data {
 	int index;
+	void __iomem *mem;
 };
 
 static const struct control_init_data ctrl_data = {
@@ -610,6 +611,34 @@ static struct of_device_id omap_scrm_dt_match_table[] = {
 };
 
 /**
+ * omap2_control_base_init - initialize iomappings for the control driver
+ *
+ * Detects and initializes the iomappings for the control driver, based
+ * on the DT data. Returns 0 in success, negative error value
+ * otherwise.
+ */
+int __init omap2_control_base_init(void)
+{
+	struct device_node *np;
+	const struct of_device_id *match;
+	struct control_init_data *data;
+	void __iomem *mem;
+
+	for_each_matching_node_and_match(np, omap_scrm_dt_match_table, &match) {
+		data = (struct control_init_data *)match->data;
+
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+
+		omap2_ctrl_base = mem;
+		data->mem = mem;
+	}
+
+	return 0;
+}
+
+/**
  * omap_control_init - low level init for the control driver
  *
  * Initializes the low level clock infrastructure for control driver.
@@ -620,17 +649,12 @@ int __init omap_control_init(void)
 	struct device_node *np;
 	const struct of_device_id *match;
 	const struct control_init_data *data;
-	void __iomem *mem;
 	int ret;
 
 	for_each_matching_node_and_match(np, omap_scrm_dt_match_table, &match) {
 		data = match->data;
 
-		mem = of_iomap(np, 0);
-		if (!mem)
-			return -ENOMEM;
-
-		ret = omap2_clk_provider_init(np, data->index, mem);
+		ret = omap2_clk_provider_init(np, data->index, data->mem);
 		if (ret)
 			return ret;
 	}
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index c08c00f..5790fcc 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -454,6 +454,7 @@ extern void omap_ctrl_write_dsp_boot_mode(u8 bootmode);
 extern void omap3630_ctrl_disable_rta(void);
 extern int omap3_ctrl_save_padconf(void);
 void omap3_ctrl_init(void);
+int omap2_control_base_init(void);
 int omap_control_init(void);
 void omap2_set_globals_control(void __iomem *ctrl);
 #else
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 3a61b31..89b7762 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -384,7 +384,7 @@ void __init omap2420_init_early(void)
 	omap2_set_globals_tap(OMAP242X_CLASS, OMAP2_L4_IO_ADDRESS(0x48014000));
 	omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
 			       OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE));
+	omap2_control_base_init();
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -411,7 +411,7 @@ void __init omap2430_init_early(void)
 	omap2_set_globals_tap(OMAP243X_CLASS, OMAP2_L4_IO_ADDRESS(0x4900a000));
 	omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
 			       OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE));
+	omap2_control_base_init();
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -442,10 +442,15 @@ void __init omap3_init_early(void)
 	omap2_set_globals_tap(OMAP343X_CLASS, OMAP2_L4_IO_ADDRESS(0x4830A000));
 	omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
 			       OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE));
-	/* XXX: remove these two once OMAP3 is DT only */
-	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
-	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE), NULL);
+	/* XXX: remove these once OMAP3 is DT only */
+	if (!of_have_populated_dt()) {
+		omap2_set_globals_control(
+			OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE));
+		omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
+		omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE),
+				     NULL);
+	}
+	omap2_control_base_init();
 	omap3xxx_check_revision();
 	omap3xxx_check_features();
 	omap3xxx_prm_init();
@@ -490,10 +495,15 @@ void __init ti81xx_init_early(void)
 {
 	omap2_set_globals_tap(OMAP343X_CLASS,
 			      OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE));
-	/* XXX: remove these two once TI81xx is DT only */
-	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE));
-	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE), NULL);
+	/* XXX: remove these once TI81xx is DT only */
+	if (!of_have_populated_dt()) {
+		omap2_set_globals_control(
+			OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE));
+		omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE));
+		omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
+				     NULL);
+	}
+	omap2_control_base_init();
 	omap3xxx_check_revision();
 	ti81xx_check_features();
 	omap3xxx_voltagedomains_init();
@@ -555,7 +565,7 @@ void __init am33xx_init_early(void)
 {
 	omap2_set_globals_tap(AM335X_CLASS,
 			      AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
-	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE));
+	omap2_control_base_init();
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	am33xx_prm_init();
@@ -578,7 +588,7 @@ void __init am43xx_init_early(void)
 {
 	omap2_set_globals_tap(AM335X_CLASS,
 			      AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
-	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE));
+	omap2_control_base_init();
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	omap44xx_prm_init();
-- 
1.7.9.5

[PATCH 18/23] ARM: OMAP2+: control: determine control module base address from DT

[Tero Kristo]

There is no need to provide the control module base address through a
low-level API from the low-level IO init, as this information is
available through DT. This patch adds a new API to initialize the
control module though, but mostly makes the old API obsolete. The
old API can be completely removed once OMAP3 is made DT only.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/control.c |   36 ++++++++++++++++++++++++++++++------
 arch/arm/mach-omap2/control.h |    1 +
 arch/arm/mach-omap2/io.c      |   34 ++++++++++++++++++++++------------
 3 files changed, 53 insertions(+), 18 deletions(-)

diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index e664dba..7067807 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -595,6 +595,7 @@ void __init omap3_ctrl_init(void)
 
 struct control_init_data {
 	int index;
+	void __iomem *mem;
 };
 
 static const struct control_init_data ctrl_data = {
@@ -610,6 +611,34 @@ static struct of_device_id omap_scrm_dt_match_table[] = {
 };
 
 /**
+ * omap2_control_base_init - initialize iomappings for the control driver
+ *
+ * Detects and initializes the iomappings for the control driver, based
+ * on the DT data. Returns 0 in success, negative error value
+ * otherwise.
+ */
+int __init omap2_control_base_init(void)
+{
+	struct device_node *np;
+	const struct of_device_id *match;
+	struct control_init_data *data;
+	void __iomem *mem;
+
+	for_each_matching_node_and_match(np, omap_scrm_dt_match_table, &match) {
+		data = (struct control_init_data *)match->data;
+
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+
+		omap2_ctrl_base = mem;
+		data->mem = mem;
+	}
+
+	return 0;
+}
+
+/**
  * omap_control_init - low level init for the control driver
  *
  * Initializes the low level clock infrastructure for control driver.
@@ -620,17 +649,12 @@ int __init omap_control_init(void)
 	struct device_node *np;
 	const struct of_device_id *match;
 	const struct control_init_data *data;
-	void __iomem *mem;
 	int ret;
 
 	for_each_matching_node_and_match(np, omap_scrm_dt_match_table, &match) {
 		data = match->data;
 
-		mem = of_iomap(np, 0);
-		if (!mem)
-			return -ENOMEM;
-
-		ret = omap2_clk_provider_init(np, data->index, mem);
+		ret = omap2_clk_provider_init(np, data->index, data->mem);
 		if (ret)
 			return ret;
 	}
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index c08c00f..5790fcc 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -454,6 +454,7 @@ extern void omap_ctrl_write_dsp_boot_mode(u8 bootmode);
 extern void omap3630_ctrl_disable_rta(void);
 extern int omap3_ctrl_save_padconf(void);
 void omap3_ctrl_init(void);
+int omap2_control_base_init(void);
 int omap_control_init(void);
 void omap2_set_globals_control(void __iomem *ctrl);
 #else
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 3a61b31..89b7762 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -384,7 +384,7 @@ void __init omap2420_init_early(void)
 	omap2_set_globals_tap(OMAP242X_CLASS, OMAP2_L4_IO_ADDRESS(0x48014000));
 	omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
 			       OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE));
+	omap2_control_base_init();
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -411,7 +411,7 @@ void __init omap2430_init_early(void)
 	omap2_set_globals_tap(OMAP243X_CLASS, OMAP2_L4_IO_ADDRESS(0x4900a000));
 	omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
 			       OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE));
+	omap2_control_base_init();
 	omap2xxx_check_revision();
 	omap2xxx_prm_init();
 	omap2xxx_cm_init();
@@ -442,10 +442,15 @@ void __init omap3_init_early(void)
 	omap2_set_globals_tap(OMAP343X_CLASS, OMAP2_L4_IO_ADDRESS(0x4830A000));
 	omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
 			       OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE));
-	/* XXX: remove these two once OMAP3 is DT only */
-	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
-	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE), NULL);
+	/* XXX: remove these once OMAP3 is DT only */
+	if (!of_have_populated_dt()) {
+		omap2_set_globals_control(
+			OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE));
+		omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
+		omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE),
+				     NULL);
+	}
+	omap2_control_base_init();
 	omap3xxx_check_revision();
 	omap3xxx_check_features();
 	omap3xxx_prm_init();
@@ -490,10 +495,15 @@ void __init ti81xx_init_early(void)
 {
 	omap2_set_globals_tap(OMAP343X_CLASS,
 			      OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE));
-	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE));
-	/* XXX: remove these two once TI81xx is DT only */
-	omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE));
-	omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE), NULL);
+	/* XXX: remove these once TI81xx is DT only */
+	if (!of_have_populated_dt()) {
+		omap2_set_globals_control(
+			OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE));
+		omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE));
+		omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
+				     NULL);
+	}
+	omap2_control_base_init();
 	omap3xxx_check_revision();
 	ti81xx_check_features();
 	omap3xxx_voltagedomains_init();
@@ -555,7 +565,7 @@ void __init am33xx_init_early(void)
 {
 	omap2_set_globals_tap(AM335X_CLASS,
 			      AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
-	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE));
+	omap2_control_base_init();
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	am33xx_prm_init();
@@ -578,7 +588,7 @@ void __init am43xx_init_early(void)
 {
 	omap2_set_globals_tap(AM335X_CLASS,
 			      AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
-	omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE));
+	omap2_control_base_init();
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	omap44xx_prm_init();
-- 
1.7.9.5

[PATCH 19/23] ARM: OMAP2+: PRM: move SoC specific init calls within a generic API

[Tero Kristo]

This gets rid of need for some exported driver APIs, and simplifies the
initialization of the PRM driver. Done in preparation to make PRM a
separate driver. The init data is now also passed to the SoC specific
implementations, allowing future expansion to add feature flags etc.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/io.c           |   17 +++++++-------
 arch/arm/mach-omap2/prcm-common.h  |    4 ++++
 arch/arm/mach-omap2/prm.h          |    1 +
 arch/arm/mach-omap2/prm2xxx.c      |    3 +--
 arch/arm/mach-omap2/prm2xxx.h      |    2 +-
 arch/arm/mach-omap2/prm33xx.c      |    3 +--
 arch/arm/mach-omap2/prm33xx.h      |    2 +-
 arch/arm/mach-omap2/prm3xxx.c      |    4 +---
 arch/arm/mach-omap2/prm3xxx.h      |    2 +-
 arch/arm/mach-omap2/prm44xx.c      |    3 +--
 arch/arm/mach-omap2/prm44xx.h      |    1 -
 arch/arm/mach-omap2/prm44xx_54xx.h |    4 +++-
 arch/arm/mach-omap2/prm54xx.h      |    1 -
 arch/arm/mach-omap2/prm7xx.h       |    2 +-
 arch/arm/mach-omap2/prm_common.c   |   43 +++++++++++++++++++++++++++---------
 15 files changed, 58 insertions(+), 34 deletions(-)

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 89b7762..cab93d5 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -386,7 +386,7 @@ void __init omap2420_init_early(void)
 			       OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE));
 	omap2_control_base_init();
 	omap2xxx_check_revision();
-	omap2xxx_prm_init();
+	omap2_prcm_base_init();
 	omap2xxx_cm_init();
 	omap2xxx_voltagedomains_init();
 	omap242x_powerdomains_init();
@@ -413,7 +413,7 @@ void __init omap2430_init_early(void)
 			       OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE));
 	omap2_control_base_init();
 	omap2xxx_check_revision();
-	omap2xxx_prm_init();
+	omap2_prcm_base_init();
 	omap2xxx_cm_init();
 	omap2xxx_voltagedomains_init();
 	omap243x_powerdomains_init();
@@ -453,7 +453,8 @@ void __init omap3_init_early(void)
 	omap2_control_base_init();
 	omap3xxx_check_revision();
 	omap3xxx_check_features();
-	omap3xxx_prm_init();
+	omap2_prcm_base_init();
+	omap3xxx_prm_init(NULL);
 	omap3xxx_cm_init();
 	omap3xxx_voltagedomains_init();
 	omap3xxx_powerdomains_init();
@@ -568,7 +569,7 @@ void __init am33xx_init_early(void)
 	omap2_control_base_init();
 	omap3xxx_check_revision();
 	am33xx_check_features();
-	am33xx_prm_init();
+	omap2_prcm_base_init();
 	am33xx_cm_init();
 	am33xx_powerdomains_init();
 	am33xx_clockdomains_init();
@@ -591,7 +592,7 @@ void __init am43xx_init_early(void)
 	omap2_control_base_init();
 	omap3xxx_check_revision();
 	am33xx_check_features();
-	omap44xx_prm_init();
+	omap2_prcm_base_init();
 	omap4_cm_init();
 	am43xx_powerdomains_init();
 	am43xx_clockdomains_init();
@@ -616,7 +617,7 @@ void __init omap4430_init_early(void)
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
-	omap44xx_prm_init();
+	omap2_prcm_base_init();
 	omap4_cm_init();
 	omap4_pm_init_early();
 	omap44xx_voltagedomains_init();
@@ -644,7 +645,7 @@ void __init omap5_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
-	omap44xx_prm_init();
+	omap2_prcm_base_init();
 	omap5xxx_check_revision();
 	omap4_cm_init();
 	omap54xx_voltagedomains_init();
@@ -670,7 +671,7 @@ void __init dra7xx_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
-	omap44xx_prm_init();
+	omap2_prcm_base_init();
 	dra7xxx_check_revision();
 	omap4_cm_init();
 	dra7xx_powerdomains_init();
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index 6a103c9..d0d81d0 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -524,11 +524,15 @@ struct of_device_id;
  * @index: clock memory mapping index to be used
  * @mem: IO mem pointer for this module
  * @offset: module base address offset from the IO base
+ * @init: low level PRCM init function for this module
+ * @np: device node for this PRCM module
  */
 struct omap_prcm_init_data {
 	int index;
 	void __iomem *mem;
 	s16 offset;
+	int (*init)(const struct omap_prcm_init_data *data);
+	struct device_node *np;
 };
 
 extern void omap_prcm_irq_cleanup(void);
diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index 6707333..3936e6c 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -21,6 +21,7 @@ extern u16 prm_features;
 extern void omap2_set_globals_prm(void __iomem *prm);
 int omap_prcm_init(void);
 int omap2_prm_base_init(void);
+int omap2_prcm_base_init(void);
 # endif
 
 /*
diff --git a/arch/arm/mach-omap2/prm2xxx.c b/arch/arm/mach-omap2/prm2xxx.c
index 29e203f..752018c 100644
--- a/arch/arm/mach-omap2/prm2xxx.c
+++ b/arch/arm/mach-omap2/prm2xxx.c
@@ -220,9 +220,8 @@ static struct prm_ll_data omap2xxx_prm_ll_data = {
 	.clear_mod_irqs = &omap2xxx_prm_clear_mod_irqs,
 };
 
-int __init omap2xxx_prm_init(void)
+int __init omap2xxx_prm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_prm_base_init();
 	return prm_register(&omap2xxx_prm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/prm2xxx.h b/arch/arm/mach-omap2/prm2xxx.h
index 9c91f4f..9008a9e 100644
--- a/arch/arm/mach-omap2/prm2xxx.h
+++ b/arch/arm/mach-omap2/prm2xxx.h
@@ -124,7 +124,7 @@
 extern int omap2xxx_clkdm_sleep(struct clockdomain *clkdm);
 extern int omap2xxx_clkdm_wakeup(struct clockdomain *clkdm);
 
-extern int __init omap2xxx_prm_init(void);
+int __init omap2xxx_prm_init(const struct omap_prcm_init_data *data);
 
 #endif
 
diff --git a/arch/arm/mach-omap2/prm33xx.c b/arch/arm/mach-omap2/prm33xx.c
index 1e052aa..dcb5001 100644
--- a/arch/arm/mach-omap2/prm33xx.c
+++ b/arch/arm/mach-omap2/prm33xx.c
@@ -378,9 +378,8 @@ static struct prm_ll_data am33xx_prm_ll_data = {
 	.reset_system			= am33xx_prm_global_warm_sw_reset,
 };
 
-int __init am33xx_prm_init(void)
+int __init am33xx_prm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_prm_base_init();
 	return prm_register(&am33xx_prm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/prm33xx.h b/arch/arm/mach-omap2/prm33xx.h
index 98ac41f..2bc4ec5 100644
--- a/arch/arm/mach-omap2/prm33xx.h
+++ b/arch/arm/mach-omap2/prm33xx.h
@@ -118,7 +118,7 @@
 #define AM33XX_PM_CEFUSE_PWRSTST		AM33XX_PRM_REGADDR(AM33XX_PRM_CEFUSE_MOD, 0x0004)
 
 #ifndef __ASSEMBLER__
-int am33xx_prm_init(void);
+int am33xx_prm_init(const struct omap_prcm_init_data *data);
 
 #endif /* ASSEMBLER */
 #endif
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 994fb8b..72bfdab 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -669,10 +669,8 @@ static struct prm_ll_data omap3xxx_prm_ll_data = {
 	.vp_clear_txdone = &omap3_prm_vp_clear_txdone,
 };
 
-int __init omap3xxx_prm_init(void)
+int __init omap3xxx_prm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_prm_base_init();
-
 	if (omap3_has_io_wakeup())
 		prm_features |= PRM_HAS_IO_WAKEUP;
 
diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h
index 55e4c89..5f095ee 100644
--- a/arch/arm/mach-omap2/prm3xxx.h
+++ b/arch/arm/mach-omap2/prm3xxx.h
@@ -140,7 +140,7 @@ extern u32 omap3_prm_vcvp_read(u8 offset);
 extern void omap3_prm_vcvp_write(u32 val, u8 offset);
 extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
-extern int __init omap3xxx_prm_init(void);
+int __init omap3xxx_prm_init(const struct omap_prcm_init_data *data);
 void omap3xxx_prm_iva_idle(void);
 void omap3_prm_reset_modem(void);
 int omap3xxx_prm_clear_global_cold_reset(void);
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index 016759f..e179dbe 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -702,9 +702,8 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
 	.vp_clear_txdone	= omap4_prm_vp_clear_txdone,
 };
 
-int __init omap44xx_prm_init(void)
+int __init omap44xx_prm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_prm_base_init();
 	omap_prm_base_init();
 
 	if (cpu_is_omap44xx() || soc_is_omap54xx() || soc_is_dra7xx())
diff --git a/arch/arm/mach-omap2/prm44xx.h b/arch/arm/mach-omap2/prm44xx.h
index 7db2422..efd6035 100644
--- a/arch/arm/mach-omap2/prm44xx.h
+++ b/arch/arm/mach-omap2/prm44xx.h
@@ -26,7 +26,6 @@
 #define __ARCH_ARM_MACH_OMAP2_PRM44XX_H
 
 #include "prm44xx_54xx.h"
-#include "prcm-common.h"
 #include "prm.h"
 
 #define OMAP4430_PRM_BASE		0x4a306000
diff --git a/arch/arm/mach-omap2/prm44xx_54xx.h b/arch/arm/mach-omap2/prm44xx_54xx.h
index a470185..3f139eb 100644
--- a/arch/arm/mach-omap2/prm44xx_54xx.h
+++ b/arch/arm/mach-omap2/prm44xx_54xx.h
@@ -23,6 +23,8 @@
 #ifndef __ARCH_ARM_MACH_OMAP2_PRM44XX_54XX_H
 #define __ARCH_ARM_MACH_OMAP2_PRM44XX_54XX_H
 
+#include "prcm-common.h"
+
 /* Function prototypes */
 #ifndef __ASSEMBLER__
 
@@ -34,7 +36,7 @@ extern u32 omap4_prm_vcvp_read(u8 offset);
 extern void omap4_prm_vcvp_write(u32 val, u8 offset);
 extern u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
-extern int __init omap44xx_prm_init(void);
+int __init omap44xx_prm_init(const struct omap_prcm_init_data *data);
 
 #endif
 
diff --git a/arch/arm/mach-omap2/prm54xx.h b/arch/arm/mach-omap2/prm54xx.h
index e441101..1eb22ff 100644
--- a/arch/arm/mach-omap2/prm54xx.h
+++ b/arch/arm/mach-omap2/prm54xx.h
@@ -22,7 +22,6 @@
 #define __ARCH_ARM_MACH_OMAP2_PRM54XX_H
 
 #include "prm44xx_54xx.h"
-#include "prcm-common.h"
 #include "prm.h"
 
 #define OMAP54XX_PRM_BASE		0x4ae06000
diff --git a/arch/arm/mach-omap2/prm7xx.h b/arch/arm/mach-omap2/prm7xx.h
index 4bb50fbf..cc1e6a2 100644
--- a/arch/arm/mach-omap2/prm7xx.h
+++ b/arch/arm/mach-omap2/prm7xx.h
@@ -22,8 +22,8 @@
 #ifndef __ARCH_ARM_MACH_OMAP2_PRM7XX_H
 #define __ARCH_ARM_MACH_OMAP2_PRM7XX_H
 
-#include "prm44xx_54xx.h"
 #include "prcm-common.h"
+#include "prm44xx_54xx.h"
 #include "prm.h"
 
 #define DRA7XX_PRM_BASE		0x4ae06000
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 7d4a97a..b2e1eee 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -32,6 +32,7 @@
 #include "prm2xxx_3xxx.h"
 #include "prm2xxx.h"
 #include "prm3xxx.h"
+#include "prm33xx.h"
 #include "prm44xx.h"
 #include "common.h"
 #include "clock.h"
@@ -622,12 +623,14 @@ int prm_unregister(struct prm_ll_data *pld)
 	return 0;
 }
 
-static struct omap_prcm_init_data prm_data = {
+static struct omap_prcm_init_data omap2_prm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_PRM,
+	.init = omap2xxx_prm_init,
 };
 
-static struct omap_prcm_init_data omap3_prm_data = {
+static struct omap_prcm_init_data omap3_prm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_PRM,
+	.init = omap3xxx_prm_init,
 
 	/*
 	 * IVA2 offset is negative value, must offset the cm_base address
@@ -636,20 +639,30 @@ static struct omap_prcm_init_data omap3_prm_data = {
 	.offset = -OMAP3430_IVA2_MOD,
 };
 
-static struct omap_prcm_init_data scrm_data = {
+static struct omap_prcm_init_data am3_prm_data __initdata = {
+	.index = CLK_MEMMAP_INDEX_PRM,
+	.init = am33xx_prm_init,
+};
+
+static struct omap_prcm_init_data omap4_prm_data __initdata = {
+	.index = CLK_MEMMAP_INDEX_PRM,
+	.init = omap44xx_prm_init,
+};
+
+static struct omap_prcm_init_data scrm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_SCRM,
 };
 
-static struct of_device_id omap_prcm_dt_match_table[] = {
-	{ .compatible = "ti,am3-prcm", .data = &prm_data },
-	{ .compatible = "ti,am4-prcm", .data = &prm_data },
-	{ .compatible = "ti,omap2-prcm", .data = &prm_data },
+static struct of_device_id omap_prcm_dt_match_table[] __initdata = {
+	{ .compatible = "ti,am3-prcm", .data = &am3_prm_data },
+	{ .compatible = "ti,am4-prcm", .data = &omap4_prm_data },
+	{ .compatible = "ti,omap2-prcm", .data = &omap2_prm_data },
 	{ .compatible = "ti,omap3-prm", .data = &omap3_prm_data },
-	{ .compatible = "ti,omap4-prm", .data = &prm_data },
+	{ .compatible = "ti,omap4-prm", .data = &omap4_prm_data },
 	{ .compatible = "ti,omap4-scrm", .data = &scrm_data },
-	{ .compatible = "ti,omap5-prm", .data = &prm_data },
+	{ .compatible = "ti,omap5-prm", .data = &omap4_prm_data },
 	{ .compatible = "ti,omap5-scrm", .data = &scrm_data },
-	{ .compatible = "ti,dra7-prm", .data = &prm_data },
+	{ .compatible = "ti,dra7-prm", .data = &omap4_prm_data },
 	{ }
 };
 
@@ -678,11 +691,21 @@ int __init omap2_prm_base_init(void)
 			prm_base = mem + data->offset;
 
 		data->mem = mem;
+
+		data->np = np;
+
+		if (data->init)
+			data->init(data);
 	}
 
 	return 0;
 }
 
+int __init omap2_prcm_base_init(void)
+{
+	return omap2_prm_base_init();
+}
+
 /**
  * omap_prcm_init - low level init for the PRCM drivers
  *
-- 
1.7.9.5

[PATCH 19/23] ARM: OMAP2+: PRM: move SoC specific init calls within a generic API

[Tero Kristo]

This gets rid of need for some exported driver APIs, and simplifies the
initialization of the PRM driver. Done in preparation to make PRM a
separate driver. The init data is now also passed to the SoC specific
implementations, allowing future expansion to add feature flags etc.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/io.c           |   17 +++++++-------
 arch/arm/mach-omap2/prcm-common.h  |    4 ++++
 arch/arm/mach-omap2/prm.h          |    1 +
 arch/arm/mach-omap2/prm2xxx.c      |    3 +--
 arch/arm/mach-omap2/prm2xxx.h      |    2 +-
 arch/arm/mach-omap2/prm33xx.c      |    3 +--
 arch/arm/mach-omap2/prm33xx.h      |    2 +-
 arch/arm/mach-omap2/prm3xxx.c      |    4 +---
 arch/arm/mach-omap2/prm3xxx.h      |    2 +-
 arch/arm/mach-omap2/prm44xx.c      |    3 +--
 arch/arm/mach-omap2/prm44xx.h      |    1 -
 arch/arm/mach-omap2/prm44xx_54xx.h |    4 +++-
 arch/arm/mach-omap2/prm54xx.h      |    1 -
 arch/arm/mach-omap2/prm7xx.h       |    2 +-
 arch/arm/mach-omap2/prm_common.c   |   43 +++++++++++++++++++++++++++---------
 15 files changed, 58 insertions(+), 34 deletions(-)

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 89b7762..cab93d5 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -386,7 +386,7 @@ void __init omap2420_init_early(void)
 			       OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE));
 	omap2_control_base_init();
 	omap2xxx_check_revision();
-	omap2xxx_prm_init();
+	omap2_prcm_base_init();
 	omap2xxx_cm_init();
 	omap2xxx_voltagedomains_init();
 	omap242x_powerdomains_init();
@@ -413,7 +413,7 @@ void __init omap2430_init_early(void)
 			       OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE));
 	omap2_control_base_init();
 	omap2xxx_check_revision();
-	omap2xxx_prm_init();
+	omap2_prcm_base_init();
 	omap2xxx_cm_init();
 	omap2xxx_voltagedomains_init();
 	omap243x_powerdomains_init();
@@ -453,7 +453,8 @@ void __init omap3_init_early(void)
 	omap2_control_base_init();
 	omap3xxx_check_revision();
 	omap3xxx_check_features();
-	omap3xxx_prm_init();
+	omap2_prcm_base_init();
+	omap3xxx_prm_init(NULL);
 	omap3xxx_cm_init();
 	omap3xxx_voltagedomains_init();
 	omap3xxx_powerdomains_init();
@@ -568,7 +569,7 @@ void __init am33xx_init_early(void)
 	omap2_control_base_init();
 	omap3xxx_check_revision();
 	am33xx_check_features();
-	am33xx_prm_init();
+	omap2_prcm_base_init();
 	am33xx_cm_init();
 	am33xx_powerdomains_init();
 	am33xx_clockdomains_init();
@@ -591,7 +592,7 @@ void __init am43xx_init_early(void)
 	omap2_control_base_init();
 	omap3xxx_check_revision();
 	am33xx_check_features();
-	omap44xx_prm_init();
+	omap2_prcm_base_init();
 	omap4_cm_init();
 	am43xx_powerdomains_init();
 	am43xx_clockdomains_init();
@@ -616,7 +617,7 @@ void __init omap4430_init_early(void)
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
-	omap44xx_prm_init();
+	omap2_prcm_base_init();
 	omap4_cm_init();
 	omap4_pm_init_early();
 	omap44xx_voltagedomains_init();
@@ -644,7 +645,7 @@ void __init omap5_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
-	omap44xx_prm_init();
+	omap2_prcm_base_init();
 	omap5xxx_check_revision();
 	omap4_cm_init();
 	omap54xx_voltagedomains_init();
@@ -670,7 +671,7 @@ void __init dra7xx_init_early(void)
 	omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap4_pm_init_early();
-	omap44xx_prm_init();
+	omap2_prcm_base_init();
 	dra7xxx_check_revision();
 	omap4_cm_init();
 	dra7xx_powerdomains_init();
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index 6a103c9..d0d81d0 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -524,11 +524,15 @@ struct of_device_id;
  * @index: clock memory mapping index to be used
  * @mem: IO mem pointer for this module
  * @offset: module base address offset from the IO base
+ * @init: low level PRCM init function for this module
+ * @np: device node for this PRCM module
  */
 struct omap_prcm_init_data {
 	int index;
 	void __iomem *mem;
 	s16 offset;
+	int (*init)(const struct omap_prcm_init_data *data);
+	struct device_node *np;
 };
 
 extern void omap_prcm_irq_cleanup(void);
diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index 6707333..3936e6c 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -21,6 +21,7 @@ extern u16 prm_features;
 extern void omap2_set_globals_prm(void __iomem *prm);
 int omap_prcm_init(void);
 int omap2_prm_base_init(void);
+int omap2_prcm_base_init(void);
 # endif
 
 /*
diff --git a/arch/arm/mach-omap2/prm2xxx.c b/arch/arm/mach-omap2/prm2xxx.c
index 29e203f..752018c 100644
--- a/arch/arm/mach-omap2/prm2xxx.c
+++ b/arch/arm/mach-omap2/prm2xxx.c
@@ -220,9 +220,8 @@ static struct prm_ll_data omap2xxx_prm_ll_data = {
 	.clear_mod_irqs = &omap2xxx_prm_clear_mod_irqs,
 };
 
-int __init omap2xxx_prm_init(void)
+int __init omap2xxx_prm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_prm_base_init();
 	return prm_register(&omap2xxx_prm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/prm2xxx.h b/arch/arm/mach-omap2/prm2xxx.h
index 9c91f4f..9008a9e 100644
--- a/arch/arm/mach-omap2/prm2xxx.h
+++ b/arch/arm/mach-omap2/prm2xxx.h
@@ -124,7 +124,7 @@
 extern int omap2xxx_clkdm_sleep(struct clockdomain *clkdm);
 extern int omap2xxx_clkdm_wakeup(struct clockdomain *clkdm);
 
-extern int __init omap2xxx_prm_init(void);
+int __init omap2xxx_prm_init(const struct omap_prcm_init_data *data);
 
 #endif
 
diff --git a/arch/arm/mach-omap2/prm33xx.c b/arch/arm/mach-omap2/prm33xx.c
index 1e052aa..dcb5001 100644
--- a/arch/arm/mach-omap2/prm33xx.c
+++ b/arch/arm/mach-omap2/prm33xx.c
@@ -378,9 +378,8 @@ static struct prm_ll_data am33xx_prm_ll_data = {
 	.reset_system			= am33xx_prm_global_warm_sw_reset,
 };
 
-int __init am33xx_prm_init(void)
+int __init am33xx_prm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_prm_base_init();
 	return prm_register(&am33xx_prm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/prm33xx.h b/arch/arm/mach-omap2/prm33xx.h
index 98ac41f..2bc4ec5 100644
--- a/arch/arm/mach-omap2/prm33xx.h
+++ b/arch/arm/mach-omap2/prm33xx.h
@@ -118,7 +118,7 @@
 #define AM33XX_PM_CEFUSE_PWRSTST		AM33XX_PRM_REGADDR(AM33XX_PRM_CEFUSE_MOD, 0x0004)
 
 #ifndef __ASSEMBLER__
-int am33xx_prm_init(void);
+int am33xx_prm_init(const struct omap_prcm_init_data *data);
 
 #endif /* ASSEMBLER */
 #endif
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 994fb8b..72bfdab 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -669,10 +669,8 @@ static struct prm_ll_data omap3xxx_prm_ll_data = {
 	.vp_clear_txdone = &omap3_prm_vp_clear_txdone,
 };
 
-int __init omap3xxx_prm_init(void)
+int __init omap3xxx_prm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_prm_base_init();
-
 	if (omap3_has_io_wakeup())
 		prm_features |= PRM_HAS_IO_WAKEUP;
 
diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h
index 55e4c89..5f095ee 100644
--- a/arch/arm/mach-omap2/prm3xxx.h
+++ b/arch/arm/mach-omap2/prm3xxx.h
@@ -140,7 +140,7 @@ extern u32 omap3_prm_vcvp_read(u8 offset);
 extern void omap3_prm_vcvp_write(u32 val, u8 offset);
 extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
-extern int __init omap3xxx_prm_init(void);
+int __init omap3xxx_prm_init(const struct omap_prcm_init_data *data);
 void omap3xxx_prm_iva_idle(void);
 void omap3_prm_reset_modem(void);
 int omap3xxx_prm_clear_global_cold_reset(void);
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index 016759f..e179dbe 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -702,9 +702,8 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
 	.vp_clear_txdone	= omap4_prm_vp_clear_txdone,
 };
 
-int __init omap44xx_prm_init(void)
+int __init omap44xx_prm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_prm_base_init();
 	omap_prm_base_init();
 
 	if (cpu_is_omap44xx() || soc_is_omap54xx() || soc_is_dra7xx())
diff --git a/arch/arm/mach-omap2/prm44xx.h b/arch/arm/mach-omap2/prm44xx.h
index 7db2422..efd6035 100644
--- a/arch/arm/mach-omap2/prm44xx.h
+++ b/arch/arm/mach-omap2/prm44xx.h
@@ -26,7 +26,6 @@
 #define __ARCH_ARM_MACH_OMAP2_PRM44XX_H
 
 #include "prm44xx_54xx.h"
-#include "prcm-common.h"
 #include "prm.h"
 
 #define OMAP4430_PRM_BASE		0x4a306000
diff --git a/arch/arm/mach-omap2/prm44xx_54xx.h b/arch/arm/mach-omap2/prm44xx_54xx.h
index a470185..3f139eb 100644
--- a/arch/arm/mach-omap2/prm44xx_54xx.h
+++ b/arch/arm/mach-omap2/prm44xx_54xx.h
@@ -23,6 +23,8 @@
 #ifndef __ARCH_ARM_MACH_OMAP2_PRM44XX_54XX_H
 #define __ARCH_ARM_MACH_OMAP2_PRM44XX_54XX_H
 
+#include "prcm-common.h"
+
 /* Function prototypes */
 #ifndef __ASSEMBLER__
 
@@ -34,7 +36,7 @@ extern u32 omap4_prm_vcvp_read(u8 offset);
 extern void omap4_prm_vcvp_write(u32 val, u8 offset);
 extern u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
-extern int __init omap44xx_prm_init(void);
+int __init omap44xx_prm_init(const struct omap_prcm_init_data *data);
 
 #endif
 
diff --git a/arch/arm/mach-omap2/prm54xx.h b/arch/arm/mach-omap2/prm54xx.h
index e441101..1eb22ff 100644
--- a/arch/arm/mach-omap2/prm54xx.h
+++ b/arch/arm/mach-omap2/prm54xx.h
@@ -22,7 +22,6 @@
 #define __ARCH_ARM_MACH_OMAP2_PRM54XX_H
 
 #include "prm44xx_54xx.h"
-#include "prcm-common.h"
 #include "prm.h"
 
 #define OMAP54XX_PRM_BASE		0x4ae06000
diff --git a/arch/arm/mach-omap2/prm7xx.h b/arch/arm/mach-omap2/prm7xx.h
index 4bb50fbf..cc1e6a2 100644
--- a/arch/arm/mach-omap2/prm7xx.h
+++ b/arch/arm/mach-omap2/prm7xx.h
@@ -22,8 +22,8 @@
 #ifndef __ARCH_ARM_MACH_OMAP2_PRM7XX_H
 #define __ARCH_ARM_MACH_OMAP2_PRM7XX_H
 
-#include "prm44xx_54xx.h"
 #include "prcm-common.h"
+#include "prm44xx_54xx.h"
 #include "prm.h"
 
 #define DRA7XX_PRM_BASE		0x4ae06000
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 7d4a97a..b2e1eee 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -32,6 +32,7 @@
 #include "prm2xxx_3xxx.h"
 #include "prm2xxx.h"
 #include "prm3xxx.h"
+#include "prm33xx.h"
 #include "prm44xx.h"
 #include "common.h"
 #include "clock.h"
@@ -622,12 +623,14 @@ int prm_unregister(struct prm_ll_data *pld)
 	return 0;
 }
 
-static struct omap_prcm_init_data prm_data = {
+static struct omap_prcm_init_data omap2_prm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_PRM,
+	.init = omap2xxx_prm_init,
 };
 
-static struct omap_prcm_init_data omap3_prm_data = {
+static struct omap_prcm_init_data omap3_prm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_PRM,
+	.init = omap3xxx_prm_init,
 
 	/*
 	 * IVA2 offset is negative value, must offset the cm_base address
@@ -636,20 +639,30 @@ static struct omap_prcm_init_data omap3_prm_data = {
 	.offset = -OMAP3430_IVA2_MOD,
 };
 
-static struct omap_prcm_init_data scrm_data = {
+static struct omap_prcm_init_data am3_prm_data __initdata = {
+	.index = CLK_MEMMAP_INDEX_PRM,
+	.init = am33xx_prm_init,
+};
+
+static struct omap_prcm_init_data omap4_prm_data __initdata = {
+	.index = CLK_MEMMAP_INDEX_PRM,
+	.init = omap44xx_prm_init,
+};
+
+static struct omap_prcm_init_data scrm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_SCRM,
 };
 
-static struct of_device_id omap_prcm_dt_match_table[] = {
-	{ .compatible = "ti,am3-prcm", .data = &prm_data },
-	{ .compatible = "ti,am4-prcm", .data = &prm_data },
-	{ .compatible = "ti,omap2-prcm", .data = &prm_data },
+static struct of_device_id omap_prcm_dt_match_table[] __initdata = {
+	{ .compatible = "ti,am3-prcm", .data = &am3_prm_data },
+	{ .compatible = "ti,am4-prcm", .data = &omap4_prm_data },
+	{ .compatible = "ti,omap2-prcm", .data = &omap2_prm_data },
 	{ .compatible = "ti,omap3-prm", .data = &omap3_prm_data },
-	{ .compatible = "ti,omap4-prm", .data = &prm_data },
+	{ .compatible = "ti,omap4-prm", .data = &omap4_prm_data },
 	{ .compatible = "ti,omap4-scrm", .data = &scrm_data },
-	{ .compatible = "ti,omap5-prm", .data = &prm_data },
+	{ .compatible = "ti,omap5-prm", .data = &omap4_prm_data },
 	{ .compatible = "ti,omap5-scrm", .data = &scrm_data },
-	{ .compatible = "ti,dra7-prm", .data = &prm_data },
+	{ .compatible = "ti,dra7-prm", .data = &omap4_prm_data },
 	{ }
 };
 
@@ -678,11 +691,21 @@ int __init omap2_prm_base_init(void)
 			prm_base = mem + data->offset;
 
 		data->mem = mem;
+
+		data->np = np;
+
+		if (data->init)
+			data->init(data);
 	}
 
 	return 0;
 }
 
+int __init omap2_prcm_base_init(void)
+{
+	return omap2_prm_base_init();
+}
+
 /**
  * omap_prcm_init - low level init for the PRCM drivers
  *
-- 
1.7.9.5

[PATCH 20/23] ARM: OMAP4+: PRM: determine prm_device_inst based on DT compatibility

[Tero Kristo]

PRM device instance offset is now provided through the prm_init_data.
This gets rid of some cpu_is_X / soc_is_X calls from PRM core code,
preparing for PRM to be its own separate driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/prcm-common.h |    2 ++
 arch/arm/mach-omap2/prm44xx.c     |    2 ++
 arch/arm/mach-omap2/prm_common.c  |   28 +++++++++++++++++++++++++---
 arch/arm/mach-omap2/prminst44xx.c |   18 +++++-------------
 arch/arm/mach-omap2/prminst44xx.h |    1 +
 5 files changed, 35 insertions(+), 16 deletions(-)

diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index d0d81d0..89c09eb 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -524,6 +524,7 @@ struct of_device_id;
  * @index: clock memory mapping index to be used
  * @mem: IO mem pointer for this module
  * @offset: module base address offset from the IO base
+ * @device_inst_offset: device instance offset within the module address space
  * @init: low level PRCM init function for this module
  * @np: device node for this PRCM module
  */
@@ -531,6 +532,7 @@ struct omap_prcm_init_data {
 	int index;
 	void __iomem *mem;
 	s16 offset;
+	s32 device_inst_offset;
 	int (*init)(const struct omap_prcm_init_data *data);
 	struct device_node *np;
 };
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index e179dbe..1994dcc 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -712,6 +712,8 @@ int __init omap44xx_prm_init(const struct omap_prcm_init_data *data)
 	if (!soc_is_dra7xx())
 		prm_features |= PRM_HAS_VOLTAGE;
 
+	omap4_prminst_set_prm_dev_inst(data->device_inst_offset);
+
 	return prm_register(&omap44xx_prm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index b2e1eee..0fc2da9 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -34,6 +34,9 @@
 #include "prm3xxx.h"
 #include "prm33xx.h"
 #include "prm44xx.h"
+#include "prm54xx.h"
+#include "prm7xx.h"
+#include "prcm43xx.h"
 #include "common.h"
 #include "clock.h"
 #include "cm.h"
@@ -647,6 +650,25 @@ static struct omap_prcm_init_data am3_prm_data __initdata = {
 static struct omap_prcm_init_data omap4_prm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_PRM,
 	.init = omap44xx_prm_init,
+	.device_inst_offset = OMAP4430_PRM_DEVICE_INST,
+};
+
+static struct omap_prcm_init_data omap5_prm_data __initdata = {
+	.index = CLK_MEMMAP_INDEX_PRM,
+	.init = omap44xx_prm_init,
+	.device_inst_offset = OMAP54XX_PRM_DEVICE_INST,
+};
+
+static struct omap_prcm_init_data dra7_prm_data __initdata = {
+	.index = CLK_MEMMAP_INDEX_PRM,
+	.init = omap44xx_prm_init,
+	.device_inst_offset = DRA7XX_PRM_DEVICE_INST,
+};
+
+static struct omap_prcm_init_data am4_prm_data __initdata = {
+	.index = CLK_MEMMAP_INDEX_PRM,
+	.init = omap44xx_prm_init,
+	.device_inst_offset = AM43XX_PRM_DEVICE_INST,
 };
 
 static struct omap_prcm_init_data scrm_data __initdata = {
@@ -655,14 +677,14 @@ static struct omap_prcm_init_data scrm_data __initdata = {
 
 static struct of_device_id omap_prcm_dt_match_table[] __initdata = {
 	{ .compatible = "ti,am3-prcm", .data = &am3_prm_data },
-	{ .compatible = "ti,am4-prcm", .data = &omap4_prm_data },
+	{ .compatible = "ti,am4-prcm", .data = &am4_prm_data },
 	{ .compatible = "ti,omap2-prcm", .data = &omap2_prm_data },
 	{ .compatible = "ti,omap3-prm", .data = &omap3_prm_data },
 	{ .compatible = "ti,omap4-prm", .data = &omap4_prm_data },
 	{ .compatible = "ti,omap4-scrm", .data = &scrm_data },
-	{ .compatible = "ti,omap5-prm", .data = &omap4_prm_data },
+	{ .compatible = "ti,omap5-prm", .data = &omap5_prm_data },
 	{ .compatible = "ti,omap5-scrm", .data = &scrm_data },
-	{ .compatible = "ti,dra7-prm", .data = &omap4_prm_data },
+	{ .compatible = "ti,dra7-prm", .data = &dra7_prm_data },
 	{ }
 };
 
diff --git a/arch/arm/mach-omap2/prminst44xx.c b/arch/arm/mach-omap2/prminst44xx.c
index 8adf7b1..c4859c4 100644
--- a/arch/arm/mach-omap2/prminst44xx.c
+++ b/arch/arm/mach-omap2/prminst44xx.c
@@ -47,22 +47,14 @@ void omap_prm_base_init(void)
 
 s32 omap4_prmst_get_prm_dev_inst(void)
 {
-	if (prm_dev_inst != PRM_INSTANCE_UNKNOWN)
-		return prm_dev_inst;
-
-	/* This cannot be done way early at boot.. as things are not setup */
-	if (cpu_is_omap44xx())
-		prm_dev_inst = OMAP4430_PRM_DEVICE_INST;
-	else if (soc_is_omap54xx())
-		prm_dev_inst = OMAP54XX_PRM_DEVICE_INST;
-	else if (soc_is_dra7xx())
-		prm_dev_inst = DRA7XX_PRM_DEVICE_INST;
-	else if (soc_is_am43xx())
-		prm_dev_inst = AM43XX_PRM_DEVICE_INST;
-
 	return prm_dev_inst;
 }
 
+void omap4_prminst_set_prm_dev_inst(s32 dev_inst)
+{
+	prm_dev_inst = dev_inst;
+}
+
 /* Read a register in a PRM instance */
 u32 omap4_prminst_read_inst_reg(u8 part, s16 inst, u16 idx)
 {
diff --git a/arch/arm/mach-omap2/prminst44xx.h b/arch/arm/mach-omap2/prminst44xx.h
index fb1c9d7..0c03d07 100644
--- a/arch/arm/mach-omap2/prminst44xx.h
+++ b/arch/arm/mach-omap2/prminst44xx.h
@@ -14,6 +14,7 @@
 
 #define PRM_INSTANCE_UNKNOWN	-1
 extern s32 omap4_prmst_get_prm_dev_inst(void);
+void omap4_prminst_set_prm_dev_inst(s32 dev_inst);
 
 /*
  * In an ideal world, we would not export these low-level functions,
-- 
1.7.9.5

[PATCH 20/23] ARM: OMAP4+: PRM: determine prm_device_inst based on DT compatibility

[Tero Kristo]

PRM device instance offset is now provided through the prm_init_data.
This gets rid of some cpu_is_X / soc_is_X calls from PRM core code,
preparing for PRM to be its own separate driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/prcm-common.h |    2 ++
 arch/arm/mach-omap2/prm44xx.c     |    2 ++
 arch/arm/mach-omap2/prm_common.c  |   28 +++++++++++++++++++++++++---
 arch/arm/mach-omap2/prminst44xx.c |   18 +++++-------------
 arch/arm/mach-omap2/prminst44xx.h |    1 +
 5 files changed, 35 insertions(+), 16 deletions(-)

diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index d0d81d0..89c09eb 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -524,6 +524,7 @@ struct of_device_id;
  * @index: clock memory mapping index to be used
  * @mem: IO mem pointer for this module
  * @offset: module base address offset from the IO base
+ * @device_inst_offset: device instance offset within the module address space
  * @init: low level PRCM init function for this module
  * @np: device node for this PRCM module
  */
@@ -531,6 +532,7 @@ struct omap_prcm_init_data {
 	int index;
 	void __iomem *mem;
 	s16 offset;
+	s32 device_inst_offset;
 	int (*init)(const struct omap_prcm_init_data *data);
 	struct device_node *np;
 };
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index e179dbe..1994dcc 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -712,6 +712,8 @@ int __init omap44xx_prm_init(const struct omap_prcm_init_data *data)
 	if (!soc_is_dra7xx())
 		prm_features |= PRM_HAS_VOLTAGE;
 
+	omap4_prminst_set_prm_dev_inst(data->device_inst_offset);
+
 	return prm_register(&omap44xx_prm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index b2e1eee..0fc2da9 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -34,6 +34,9 @@
 #include "prm3xxx.h"
 #include "prm33xx.h"
 #include "prm44xx.h"
+#include "prm54xx.h"
+#include "prm7xx.h"
+#include "prcm43xx.h"
 #include "common.h"
 #include "clock.h"
 #include "cm.h"
@@ -647,6 +650,25 @@ static struct omap_prcm_init_data am3_prm_data __initdata = {
 static struct omap_prcm_init_data omap4_prm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_PRM,
 	.init = omap44xx_prm_init,
+	.device_inst_offset = OMAP4430_PRM_DEVICE_INST,
+};
+
+static struct omap_prcm_init_data omap5_prm_data __initdata = {
+	.index = CLK_MEMMAP_INDEX_PRM,
+	.init = omap44xx_prm_init,
+	.device_inst_offset = OMAP54XX_PRM_DEVICE_INST,
+};
+
+static struct omap_prcm_init_data dra7_prm_data __initdata = {
+	.index = CLK_MEMMAP_INDEX_PRM,
+	.init = omap44xx_prm_init,
+	.device_inst_offset = DRA7XX_PRM_DEVICE_INST,
+};
+
+static struct omap_prcm_init_data am4_prm_data __initdata = {
+	.index = CLK_MEMMAP_INDEX_PRM,
+	.init = omap44xx_prm_init,
+	.device_inst_offset = AM43XX_PRM_DEVICE_INST,
 };
 
 static struct omap_prcm_init_data scrm_data __initdata = {
@@ -655,14 +677,14 @@ static struct omap_prcm_init_data scrm_data __initdata = {
 
 static struct of_device_id omap_prcm_dt_match_table[] __initdata = {
 	{ .compatible = "ti,am3-prcm", .data = &am3_prm_data },
-	{ .compatible = "ti,am4-prcm", .data = &omap4_prm_data },
+	{ .compatible = "ti,am4-prcm", .data = &am4_prm_data },
 	{ .compatible = "ti,omap2-prcm", .data = &omap2_prm_data },
 	{ .compatible = "ti,omap3-prm", .data = &omap3_prm_data },
 	{ .compatible = "ti,omap4-prm", .data = &omap4_prm_data },
 	{ .compatible = "ti,omap4-scrm", .data = &scrm_data },
-	{ .compatible = "ti,omap5-prm", .data = &omap4_prm_data },
+	{ .compatible = "ti,omap5-prm", .data = &omap5_prm_data },
 	{ .compatible = "ti,omap5-scrm", .data = &scrm_data },
-	{ .compatible = "ti,dra7-prm", .data = &omap4_prm_data },
+	{ .compatible = "ti,dra7-prm", .data = &dra7_prm_data },
 	{ }
 };
 
diff --git a/arch/arm/mach-omap2/prminst44xx.c b/arch/arm/mach-omap2/prminst44xx.c
index 8adf7b1..c4859c4 100644
--- a/arch/arm/mach-omap2/prminst44xx.c
+++ b/arch/arm/mach-omap2/prminst44xx.c
@@ -47,22 +47,14 @@ void omap_prm_base_init(void)
 
 s32 omap4_prmst_get_prm_dev_inst(void)
 {
-	if (prm_dev_inst != PRM_INSTANCE_UNKNOWN)
-		return prm_dev_inst;
-
-	/* This cannot be done way early at boot.. as things are not setup */
-	if (cpu_is_omap44xx())
-		prm_dev_inst = OMAP4430_PRM_DEVICE_INST;
-	else if (soc_is_omap54xx())
-		prm_dev_inst = OMAP54XX_PRM_DEVICE_INST;
-	else if (soc_is_dra7xx())
-		prm_dev_inst = DRA7XX_PRM_DEVICE_INST;
-	else if (soc_is_am43xx())
-		prm_dev_inst = AM43XX_PRM_DEVICE_INST;
-
 	return prm_dev_inst;
 }
 
+void omap4_prminst_set_prm_dev_inst(s32 dev_inst)
+{
+	prm_dev_inst = dev_inst;
+}
+
 /* Read a register in a PRM instance */
 u32 omap4_prminst_read_inst_reg(u8 part, s16 inst, u16 idx)
 {
diff --git a/arch/arm/mach-omap2/prminst44xx.h b/arch/arm/mach-omap2/prminst44xx.h
index fb1c9d7..0c03d07 100644
--- a/arch/arm/mach-omap2/prminst44xx.h
+++ b/arch/arm/mach-omap2/prminst44xx.h
@@ -14,6 +14,7 @@
 
 #define PRM_INSTANCE_UNKNOWN	-1
 extern s32 omap4_prmst_get_prm_dev_inst(void);
+void omap4_prminst_set_prm_dev_inst(s32 dev_inst);
 
 /*
  * In an ideal world, we would not export these low-level functions,
-- 
1.7.9.5

[PATCH 21/23] ARM: OMAP2+: CM: move SoC specific init calls within a generic API

[Tero Kristo]

This gets rid of need for some exported driver APIs, and simplifies the
initialization of the CM driver. Done in preparation to make CM a
separate driver. The init data is now also passed to the SoC specific
implementations, allowing future expansion to add feature flags etc.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/cm.h          |    3 +++
 arch/arm/mach-omap2/cm2xxx.c      |    3 +--
 arch/arm/mach-omap2/cm2xxx.h      |    2 +-
 arch/arm/mach-omap2/cm33xx.c      |    3 +--
 arch/arm/mach-omap2/cm33xx.h      |    3 ++-
 arch/arm/mach-omap2/cm3xxx.c      |    3 +--
 arch/arm/mach-omap2/cm3xxx.h      |    2 +-
 arch/arm/mach-omap2/cm44xx.h      |    2 +-
 arch/arm/mach-omap2/cm_common.c   |   36 ++++++++++++++++++++++++++++++++----
 arch/arm/mach-omap2/cminst44xx.c  |    3 +--
 arch/arm/mach-omap2/io.c          |   14 +++++---------
 arch/arm/mach-omap2/prcm-common.h |    2 ++
 arch/arm/mach-omap2/prm_common.c  |    8 +++++++-
 13 files changed, 58 insertions(+), 26 deletions(-)

diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h
index 1fe3e6b..5fd84f3 100644
--- a/arch/arm/mach-omap2/cm.h
+++ b/arch/arm/mach-omap2/cm.h
@@ -28,6 +28,9 @@ extern void __iomem *cm2_base;
 extern void omap2_set_globals_cm(void __iomem *cm, void __iomem *cm2);
 # endif
 
+#define CM_NO_CLOCKS			0x1
+#define CM_SINGLE_INSTANCE		0x2
+
 /*
  * MAX_MODULE_DISABLE_TIME: max duration in microseconds to wait for
  * the PRCM to request that a module enter the inactive state in the
diff --git a/arch/arm/mach-omap2/cm2xxx.c b/arch/arm/mach-omap2/cm2xxx.c
index f18c844..3e5fd35 100644
--- a/arch/arm/mach-omap2/cm2xxx.c
+++ b/arch/arm/mach-omap2/cm2xxx.c
@@ -393,9 +393,8 @@ static struct cm_ll_data omap2xxx_cm_ll_data = {
 	.wait_module_ready	= &omap2xxx_cm_wait_module_ready,
 };
 
-int __init omap2xxx_cm_init(void)
+int __init omap2xxx_cm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_cm_base_init();
 	return cm_register(&omap2xxx_cm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/cm2xxx.h b/arch/arm/mach-omap2/cm2xxx.h
index 83b6c59..7b8c79c 100644
--- a/arch/arm/mach-omap2/cm2xxx.h
+++ b/arch/arm/mach-omap2/cm2xxx.h
@@ -63,7 +63,7 @@ extern u32 omap2xxx_cm_get_core_pll_config(void);
 extern void omap2xxx_cm_set_mod_dividers(u32 mpu, u32 dsp, u32 gfx, u32 core,
 					 u32 mdm);
 
-extern int __init omap2xxx_cm_init(void);
+int __init omap2xxx_cm_init(const struct omap_prcm_init_data *data);
 
 #endif
 
diff --git a/arch/arm/mach-omap2/cm33xx.c b/arch/arm/mach-omap2/cm33xx.c
index 4c5038c..3e85214 100644
--- a/arch/arm/mach-omap2/cm33xx.c
+++ b/arch/arm/mach-omap2/cm33xx.c
@@ -373,9 +373,8 @@ static struct cm_ll_data am33xx_cm_ll_data = {
 	.module_disable		= &am33xx_cm_module_disable,
 };
 
-int __init am33xx_cm_init(void)
+int __init am33xx_cm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_cm_base_init();
 	return cm_register(&am33xx_cm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/cm33xx.h b/arch/arm/mach-omap2/cm33xx.h
index 046b4b2..a91f7d2 100644
--- a/arch/arm/mach-omap2/cm33xx.h
+++ b/arch/arm/mach-omap2/cm33xx.h
@@ -19,6 +19,7 @@
 
 #include "cm.h"
 #include "cm-regbits-33xx.h"
+#include "prcm-common.h"
 
 /* CM base address */
 #define AM33XX_CM_BASE		0x44e00000
@@ -374,6 +375,6 @@
 
 
 #ifndef __ASSEMBLER__
-int am33xx_cm_init(void);
+int am33xx_cm_init(const struct omap_prcm_init_data *data);
 #endif /* ASSEMBLER */
 #endif
diff --git a/arch/arm/mach-omap2/cm3xxx.c b/arch/arm/mach-omap2/cm3xxx.c
index 8e91f38..f7b64c2 100644
--- a/arch/arm/mach-omap2/cm3xxx.c
+++ b/arch/arm/mach-omap2/cm3xxx.c
@@ -671,9 +671,8 @@ static struct cm_ll_data omap3xxx_cm_ll_data = {
 	.wait_module_ready	= &omap3xxx_cm_wait_module_ready,
 };
 
-int __init omap3xxx_cm_init(void)
+int __init omap3xxx_cm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_cm_base_init();
 	return cm_register(&omap3xxx_cm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/cm3xxx.h b/arch/arm/mach-omap2/cm3xxx.h
index 734a858..bc444e2 100644
--- a/arch/arm/mach-omap2/cm3xxx.h
+++ b/arch/arm/mach-omap2/cm3xxx.h
@@ -72,7 +72,7 @@ extern void omap3_cm_save_context(void);
 extern void omap3_cm_restore_context(void);
 extern void omap3_cm_save_scratchpad_contents(u32 *ptr);
 
-extern int __init omap3xxx_cm_init(void);
+int __init omap3xxx_cm_init(const struct omap_prcm_init_data *data);
 
 #endif
 
diff --git a/arch/arm/mach-omap2/cm44xx.h b/arch/arm/mach-omap2/cm44xx.h
index ad6e263..309a4c9 100644
--- a/arch/arm/mach-omap2/cm44xx.h
+++ b/arch/arm/mach-omap2/cm44xx.h
@@ -23,6 +23,6 @@
 #define OMAP4_CM_CLKSTCTRL				0x0000
 #define OMAP4_CM_STATICDEP				0x0004
 
-int omap4_cm_init(void);
+int omap4_cm_init(const struct omap_prcm_init_data *data);
 
 #endif
diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
index c2d7c7b..80bf350 100644
--- a/arch/arm/mach-omap2/cm_common.c
+++ b/arch/arm/mach-omap2/cm_common.c
@@ -20,6 +20,7 @@
 
 #include "cm2xxx.h"
 #include "cm3xxx.h"
+#include "cm33xx.h"
 #include "cm44xx.h"
 #include "clock.h"
 
@@ -216,16 +217,20 @@ int cm_unregister(struct cm_ll_data *cld)
 	return 0;
 }
 
-static struct omap_prcm_init_data cm_data = {
+static struct omap_prcm_init_data cm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_CM1,
+	.init = omap4_cm_init,
 };
 
-static struct omap_prcm_init_data cm2_data = {
+static struct omap_prcm_init_data cm2_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_CM2,
+	.init = omap4_cm_init,
 };
 
-static struct omap_prcm_init_data omap3_cm_data = {
+static struct omap_prcm_init_data omap3_cm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_CM1,
+	.init = omap3xxx_cm_init,
+	.flags = CM_SINGLE_INSTANCE,
 
 	/*
 	 * IVA2 offset is negative value, must offset the cm_base address
@@ -234,7 +239,19 @@ static struct omap_prcm_init_data omap3_cm_data = {
 	.offset = -OMAP3430_IVA2_MOD,
 };
 
-static struct of_device_id omap_cm_dt_match_table[] = {
+static struct omap_prcm_init_data am3_prcm_data __initdata = {
+	.index = CLK_MEMMAP_INDEX_CM1,
+	.flags = CM_NO_CLOCKS | CM_SINGLE_INSTANCE,
+	.init = am33xx_cm_init,
+};
+
+static struct omap_prcm_init_data am4_prcm_data __initdata = {
+	.index = CLK_MEMMAP_INDEX_CM2,
+	.flags = CM_NO_CLOCKS | CM_SINGLE_INSTANCE,
+	.init = omap4_cm_init,
+};
+
+static struct of_device_id omap_cm_dt_match_table[] __initdata = {
 	{ .compatible = "ti,omap3-cm", .data = &omap3_cm_data },
 	{ .compatible = "ti,omap4-cm1", .data = &cm_data },
 	{ .compatible = "ti,omap4-cm2", .data = &cm2_data },
@@ -242,6 +259,8 @@ static struct of_device_id omap_cm_dt_match_table[] = {
 	{ .compatible = "ti,omap5-cm-core", .data = &cm2_data },
 	{ .compatible = "ti,dra7-cm-core-aon", .data = &cm_data },
 	{ .compatible = "ti,dra7-cm-core", .data = &cm2_data },
+	{ .compatible = "ti,am3-prcm", .data = &am3_prcm_data },
+	{ .compatible = "ti,am4-prcm", .data = &am4_prcm_data },
 	{ }
 };
 
@@ -273,6 +292,12 @@ int __init omap2_cm_base_init(void)
 			cm2_base = mem + data->offset;
 
 		data->mem = mem;
+
+		data->np = np;
+
+		if (data->init && (data->flags & CM_SINGLE_INSTANCE ||
+				   (cm_base && cm2_base)))
+			data->init(data);
 	}
 
 	return 0;
@@ -294,6 +319,9 @@ int __init omap_cm_init(void)
 	for_each_matching_node_and_match(np, omap_cm_dt_match_table, &match) {
 		data = match->data;
 
+		if (data->flags & CM_NO_CLOCKS)
+			continue;
+
 		ret = omap2_clk_provider_init(np, data->index, data->mem);
 		if (ret)
 			return ret;
diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c
index 4aed22d..2c0e07e 100644
--- a/arch/arm/mach-omap2/cminst44xx.c
+++ b/arch/arm/mach-omap2/cminst44xx.c
@@ -514,9 +514,8 @@ static struct cm_ll_data omap4xxx_cm_ll_data = {
 	.module_disable		= &omap4_cminst_module_disable,
 };
 
-int __init omap4_cm_init(void)
+int __init omap4_cm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_cm_base_init();
 	omap_cm_base_init();
 
 	return cm_register(&omap4xxx_cm_ll_data);
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index cab93d5..aa49edb 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -387,7 +387,6 @@ void __init omap2420_init_early(void)
 	omap2_control_base_init();
 	omap2xxx_check_revision();
 	omap2_prcm_base_init();
-	omap2xxx_cm_init();
 	omap2xxx_voltagedomains_init();
 	omap242x_powerdomains_init();
 	omap242x_clockdomains_init();
@@ -414,7 +413,6 @@ void __init omap2430_init_early(void)
 	omap2_control_base_init();
 	omap2xxx_check_revision();
 	omap2_prcm_base_init();
-	omap2xxx_cm_init();
 	omap2xxx_voltagedomains_init();
 	omap243x_powerdomains_init();
 	omap243x_clockdomains_init();
@@ -454,8 +452,11 @@ void __init omap3_init_early(void)
 	omap3xxx_check_revision();
 	omap3xxx_check_features();
 	omap2_prcm_base_init();
-	omap3xxx_prm_init(NULL);
-	omap3xxx_cm_init();
+	/* XXX: remove these once OMAP3 is DT only */
+	if (!of_have_populated_dt()) {
+		omap3xxx_prm_init(NULL);
+		omap3xxx_cm_init(NULL);
+	}
 	omap3xxx_voltagedomains_init();
 	omap3xxx_powerdomains_init();
 	omap3xxx_clockdomains_init();
@@ -570,7 +571,6 @@ void __init am33xx_init_early(void)
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	omap2_prcm_base_init();
-	am33xx_cm_init();
 	am33xx_powerdomains_init();
 	am33xx_clockdomains_init();
 	am33xx_hwmod_init();
@@ -593,7 +593,6 @@ void __init am43xx_init_early(void)
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	omap2_prcm_base_init();
-	omap4_cm_init();
 	am43xx_powerdomains_init();
 	am43xx_clockdomains_init();
 	am43xx_hwmod_init();
@@ -618,7 +617,6 @@ void __init omap4430_init_early(void)
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
 	omap2_prcm_base_init();
-	omap4_cm_init();
 	omap4_pm_init_early();
 	omap44xx_voltagedomains_init();
 	omap44xx_powerdomains_init();
@@ -647,7 +645,6 @@ void __init omap5_init_early(void)
 	omap4_pm_init_early();
 	omap2_prcm_base_init();
 	omap5xxx_check_revision();
-	omap4_cm_init();
 	omap54xx_voltagedomains_init();
 	omap54xx_powerdomains_init();
 	omap54xx_clockdomains_init();
@@ -673,7 +670,6 @@ void __init dra7xx_init_early(void)
 	omap4_pm_init_early();
 	omap2_prcm_base_init();
 	dra7xxx_check_revision();
-	omap4_cm_init();
 	dra7xx_powerdomains_init();
 	dra7xx_clockdomains_init();
 	dra7xx_hwmod_init();
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index 89c09eb..3757be2 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -524,6 +524,7 @@ struct of_device_id;
  * @index: clock memory mapping index to be used
  * @mem: IO mem pointer for this module
  * @offset: module base address offset from the IO base
+ * @flags: PRCM module init flags
  * @device_inst_offset: device instance offset within the module address space
  * @init: low level PRCM init function for this module
  * @np: device node for this PRCM module
@@ -532,6 +533,7 @@ struct omap_prcm_init_data {
 	int index;
 	void __iomem *mem;
 	s16 offset;
+	u16 flags;
 	s32 device_inst_offset;
 	int (*init)(const struct omap_prcm_init_data *data);
 	struct device_node *np;
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 0fc2da9..b828352 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -725,7 +725,13 @@ int __init omap2_prm_base_init(void)
 
 int __init omap2_prcm_base_init(void)
 {
-	return omap2_prm_base_init();
+	int ret;
+
+	ret = omap2_prm_base_init();
+	if (ret)
+		return ret;
+
+	return omap2_cm_base_init();
 }
 
 /**
-- 
1.7.9.5

[PATCH 21/23] ARM: OMAP2+: CM: move SoC specific init calls within a generic API

[Tero Kristo]

This gets rid of need for some exported driver APIs, and simplifies the
initialization of the CM driver. Done in preparation to make CM a
separate driver. The init data is now also passed to the SoC specific
implementations, allowing future expansion to add feature flags etc.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/cm.h          |    3 +++
 arch/arm/mach-omap2/cm2xxx.c      |    3 +--
 arch/arm/mach-omap2/cm2xxx.h      |    2 +-
 arch/arm/mach-omap2/cm33xx.c      |    3 +--
 arch/arm/mach-omap2/cm33xx.h      |    3 ++-
 arch/arm/mach-omap2/cm3xxx.c      |    3 +--
 arch/arm/mach-omap2/cm3xxx.h      |    2 +-
 arch/arm/mach-omap2/cm44xx.h      |    2 +-
 arch/arm/mach-omap2/cm_common.c   |   36 ++++++++++++++++++++++++++++++++----
 arch/arm/mach-omap2/cminst44xx.c  |    3 +--
 arch/arm/mach-omap2/io.c          |   14 +++++---------
 arch/arm/mach-omap2/prcm-common.h |    2 ++
 arch/arm/mach-omap2/prm_common.c  |    8 +++++++-
 13 files changed, 58 insertions(+), 26 deletions(-)

diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h
index 1fe3e6b..5fd84f3 100644
--- a/arch/arm/mach-omap2/cm.h
+++ b/arch/arm/mach-omap2/cm.h
@@ -28,6 +28,9 @@ extern void __iomem *cm2_base;
 extern void omap2_set_globals_cm(void __iomem *cm, void __iomem *cm2);
 # endif
 
+#define CM_NO_CLOCKS			0x1
+#define CM_SINGLE_INSTANCE		0x2
+
 /*
  * MAX_MODULE_DISABLE_TIME: max duration in microseconds to wait for
  * the PRCM to request that a module enter the inactive state in the
diff --git a/arch/arm/mach-omap2/cm2xxx.c b/arch/arm/mach-omap2/cm2xxx.c
index f18c844..3e5fd35 100644
--- a/arch/arm/mach-omap2/cm2xxx.c
+++ b/arch/arm/mach-omap2/cm2xxx.c
@@ -393,9 +393,8 @@ static struct cm_ll_data omap2xxx_cm_ll_data = {
 	.wait_module_ready	= &omap2xxx_cm_wait_module_ready,
 };
 
-int __init omap2xxx_cm_init(void)
+int __init omap2xxx_cm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_cm_base_init();
 	return cm_register(&omap2xxx_cm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/cm2xxx.h b/arch/arm/mach-omap2/cm2xxx.h
index 83b6c59..7b8c79c 100644
--- a/arch/arm/mach-omap2/cm2xxx.h
+++ b/arch/arm/mach-omap2/cm2xxx.h
@@ -63,7 +63,7 @@ extern u32 omap2xxx_cm_get_core_pll_config(void);
 extern void omap2xxx_cm_set_mod_dividers(u32 mpu, u32 dsp, u32 gfx, u32 core,
 					 u32 mdm);
 
-extern int __init omap2xxx_cm_init(void);
+int __init omap2xxx_cm_init(const struct omap_prcm_init_data *data);
 
 #endif
 
diff --git a/arch/arm/mach-omap2/cm33xx.c b/arch/arm/mach-omap2/cm33xx.c
index 4c5038c..3e85214 100644
--- a/arch/arm/mach-omap2/cm33xx.c
+++ b/arch/arm/mach-omap2/cm33xx.c
@@ -373,9 +373,8 @@ static struct cm_ll_data am33xx_cm_ll_data = {
 	.module_disable		= &am33xx_cm_module_disable,
 };
 
-int __init am33xx_cm_init(void)
+int __init am33xx_cm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_cm_base_init();
 	return cm_register(&am33xx_cm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/cm33xx.h b/arch/arm/mach-omap2/cm33xx.h
index 046b4b2..a91f7d2 100644
--- a/arch/arm/mach-omap2/cm33xx.h
+++ b/arch/arm/mach-omap2/cm33xx.h
@@ -19,6 +19,7 @@
 
 #include "cm.h"
 #include "cm-regbits-33xx.h"
+#include "prcm-common.h"
 
 /* CM base address */
 #define AM33XX_CM_BASE		0x44e00000
@@ -374,6 +375,6 @@
 
 
 #ifndef __ASSEMBLER__
-int am33xx_cm_init(void);
+int am33xx_cm_init(const struct omap_prcm_init_data *data);
 #endif /* ASSEMBLER */
 #endif
diff --git a/arch/arm/mach-omap2/cm3xxx.c b/arch/arm/mach-omap2/cm3xxx.c
index 8e91f38..f7b64c2 100644
--- a/arch/arm/mach-omap2/cm3xxx.c
+++ b/arch/arm/mach-omap2/cm3xxx.c
@@ -671,9 +671,8 @@ static struct cm_ll_data omap3xxx_cm_ll_data = {
 	.wait_module_ready	= &omap3xxx_cm_wait_module_ready,
 };
 
-int __init omap3xxx_cm_init(void)
+int __init omap3xxx_cm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_cm_base_init();
 	return cm_register(&omap3xxx_cm_ll_data);
 }
 
diff --git a/arch/arm/mach-omap2/cm3xxx.h b/arch/arm/mach-omap2/cm3xxx.h
index 734a858..bc444e2 100644
--- a/arch/arm/mach-omap2/cm3xxx.h
+++ b/arch/arm/mach-omap2/cm3xxx.h
@@ -72,7 +72,7 @@ extern void omap3_cm_save_context(void);
 extern void omap3_cm_restore_context(void);
 extern void omap3_cm_save_scratchpad_contents(u32 *ptr);
 
-extern int __init omap3xxx_cm_init(void);
+int __init omap3xxx_cm_init(const struct omap_prcm_init_data *data);
 
 #endif
 
diff --git a/arch/arm/mach-omap2/cm44xx.h b/arch/arm/mach-omap2/cm44xx.h
index ad6e263..309a4c9 100644
--- a/arch/arm/mach-omap2/cm44xx.h
+++ b/arch/arm/mach-omap2/cm44xx.h
@@ -23,6 +23,6 @@
 #define OMAP4_CM_CLKSTCTRL				0x0000
 #define OMAP4_CM_STATICDEP				0x0004
 
-int omap4_cm_init(void);
+int omap4_cm_init(const struct omap_prcm_init_data *data);
 
 #endif
diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
index c2d7c7b..80bf350 100644
--- a/arch/arm/mach-omap2/cm_common.c
+++ b/arch/arm/mach-omap2/cm_common.c
@@ -20,6 +20,7 @@
 
 #include "cm2xxx.h"
 #include "cm3xxx.h"
+#include "cm33xx.h"
 #include "cm44xx.h"
 #include "clock.h"
 
@@ -216,16 +217,20 @@ int cm_unregister(struct cm_ll_data *cld)
 	return 0;
 }
 
-static struct omap_prcm_init_data cm_data = {
+static struct omap_prcm_init_data cm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_CM1,
+	.init = omap4_cm_init,
 };
 
-static struct omap_prcm_init_data cm2_data = {
+static struct omap_prcm_init_data cm2_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_CM2,
+	.init = omap4_cm_init,
 };
 
-static struct omap_prcm_init_data omap3_cm_data = {
+static struct omap_prcm_init_data omap3_cm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_CM1,
+	.init = omap3xxx_cm_init,
+	.flags = CM_SINGLE_INSTANCE,
 
 	/*
 	 * IVA2 offset is negative value, must offset the cm_base address
@@ -234,7 +239,19 @@ static struct omap_prcm_init_data omap3_cm_data = {
 	.offset = -OMAP3430_IVA2_MOD,
 };
 
-static struct of_device_id omap_cm_dt_match_table[] = {
+static struct omap_prcm_init_data am3_prcm_data __initdata = {
+	.index = CLK_MEMMAP_INDEX_CM1,
+	.flags = CM_NO_CLOCKS | CM_SINGLE_INSTANCE,
+	.init = am33xx_cm_init,
+};
+
+static struct omap_prcm_init_data am4_prcm_data __initdata = {
+	.index = CLK_MEMMAP_INDEX_CM2,
+	.flags = CM_NO_CLOCKS | CM_SINGLE_INSTANCE,
+	.init = omap4_cm_init,
+};
+
+static struct of_device_id omap_cm_dt_match_table[] __initdata = {
 	{ .compatible = "ti,omap3-cm", .data = &omap3_cm_data },
 	{ .compatible = "ti,omap4-cm1", .data = &cm_data },
 	{ .compatible = "ti,omap4-cm2", .data = &cm2_data },
@@ -242,6 +259,8 @@ static struct of_device_id omap_cm_dt_match_table[] = {
 	{ .compatible = "ti,omap5-cm-core", .data = &cm2_data },
 	{ .compatible = "ti,dra7-cm-core-aon", .data = &cm_data },
 	{ .compatible = "ti,dra7-cm-core", .data = &cm2_data },
+	{ .compatible = "ti,am3-prcm", .data = &am3_prcm_data },
+	{ .compatible = "ti,am4-prcm", .data = &am4_prcm_data },
 	{ }
 };
 
@@ -273,6 +292,12 @@ int __init omap2_cm_base_init(void)
 			cm2_base = mem + data->offset;
 
 		data->mem = mem;
+
+		data->np = np;
+
+		if (data->init && (data->flags & CM_SINGLE_INSTANCE ||
+				   (cm_base && cm2_base)))
+			data->init(data);
 	}
 
 	return 0;
@@ -294,6 +319,9 @@ int __init omap_cm_init(void)
 	for_each_matching_node_and_match(np, omap_cm_dt_match_table, &match) {
 		data = match->data;
 
+		if (data->flags & CM_NO_CLOCKS)
+			continue;
+
 		ret = omap2_clk_provider_init(np, data->index, data->mem);
 		if (ret)
 			return ret;
diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c
index 4aed22d..2c0e07e 100644
--- a/arch/arm/mach-omap2/cminst44xx.c
+++ b/arch/arm/mach-omap2/cminst44xx.c
@@ -514,9 +514,8 @@ static struct cm_ll_data omap4xxx_cm_ll_data = {
 	.module_disable		= &omap4_cminst_module_disable,
 };
 
-int __init omap4_cm_init(void)
+int __init omap4_cm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_cm_base_init();
 	omap_cm_base_init();
 
 	return cm_register(&omap4xxx_cm_ll_data);
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index cab93d5..aa49edb 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -387,7 +387,6 @@ void __init omap2420_init_early(void)
 	omap2_control_base_init();
 	omap2xxx_check_revision();
 	omap2_prcm_base_init();
-	omap2xxx_cm_init();
 	omap2xxx_voltagedomains_init();
 	omap242x_powerdomains_init();
 	omap242x_clockdomains_init();
@@ -414,7 +413,6 @@ void __init omap2430_init_early(void)
 	omap2_control_base_init();
 	omap2xxx_check_revision();
 	omap2_prcm_base_init();
-	omap2xxx_cm_init();
 	omap2xxx_voltagedomains_init();
 	omap243x_powerdomains_init();
 	omap243x_clockdomains_init();
@@ -454,8 +452,11 @@ void __init omap3_init_early(void)
 	omap3xxx_check_revision();
 	omap3xxx_check_features();
 	omap2_prcm_base_init();
-	omap3xxx_prm_init(NULL);
-	omap3xxx_cm_init();
+	/* XXX: remove these once OMAP3 is DT only */
+	if (!of_have_populated_dt()) {
+		omap3xxx_prm_init(NULL);
+		omap3xxx_cm_init(NULL);
+	}
 	omap3xxx_voltagedomains_init();
 	omap3xxx_powerdomains_init();
 	omap3xxx_clockdomains_init();
@@ -570,7 +571,6 @@ void __init am33xx_init_early(void)
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	omap2_prcm_base_init();
-	am33xx_cm_init();
 	am33xx_powerdomains_init();
 	am33xx_clockdomains_init();
 	am33xx_hwmod_init();
@@ -593,7 +593,6 @@ void __init am43xx_init_early(void)
 	omap3xxx_check_revision();
 	am33xx_check_features();
 	omap2_prcm_base_init();
-	omap4_cm_init();
 	am43xx_powerdomains_init();
 	am43xx_clockdomains_init();
 	am43xx_hwmod_init();
@@ -618,7 +617,6 @@ void __init omap4430_init_early(void)
 	omap4xxx_check_revision();
 	omap4xxx_check_features();
 	omap2_prcm_base_init();
-	omap4_cm_init();
 	omap4_pm_init_early();
 	omap44xx_voltagedomains_init();
 	omap44xx_powerdomains_init();
@@ -647,7 +645,6 @@ void __init omap5_init_early(void)
 	omap4_pm_init_early();
 	omap2_prcm_base_init();
 	omap5xxx_check_revision();
-	omap4_cm_init();
 	omap54xx_voltagedomains_init();
 	omap54xx_powerdomains_init();
 	omap54xx_clockdomains_init();
@@ -673,7 +670,6 @@ void __init dra7xx_init_early(void)
 	omap4_pm_init_early();
 	omap2_prcm_base_init();
 	dra7xxx_check_revision();
-	omap4_cm_init();
 	dra7xx_powerdomains_init();
 	dra7xx_clockdomains_init();
 	dra7xx_hwmod_init();
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index 89c09eb..3757be2 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -524,6 +524,7 @@ struct of_device_id;
  * @index: clock memory mapping index to be used
  * @mem: IO mem pointer for this module
  * @offset: module base address offset from the IO base
+ * @flags: PRCM module init flags
  * @device_inst_offset: device instance offset within the module address space
  * @init: low level PRCM init function for this module
  * @np: device node for this PRCM module
@@ -532,6 +533,7 @@ struct omap_prcm_init_data {
 	int index;
 	void __iomem *mem;
 	s16 offset;
+	u16 flags;
 	s32 device_inst_offset;
 	int (*init)(const struct omap_prcm_init_data *data);
 	struct device_node *np;
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 0fc2da9..b828352 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -725,7 +725,13 @@ int __init omap2_prm_base_init(void)
 
 int __init omap2_prcm_base_init(void)
 {
-	return omap2_prm_base_init();
+	int ret;
+
+	ret = omap2_prm_base_init();
+	if (ret)
+		return ret;
+
+	return omap2_cm_base_init();
 }
 
 /**
-- 
1.7.9.5

[PATCH 22/23] ARM: OMAP4+: PRM: setup prm_features from the PRM init time flags

[Tero Kristo]

Currently some cpu_is_X checks are used to setup prm_features, however
the same can be accomplished by just passing these flags from the PRM
init data. This is done in preparation to make PRM a separate driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/prm44xx.c    |    4 ++--
 arch/arm/mach-omap2/prm_common.c |    3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index 1994dcc..af12302b 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -706,10 +706,10 @@ int __init omap44xx_prm_init(const struct omap_prcm_init_data *data)
 {
 	omap_prm_base_init();
 
-	if (cpu_is_omap44xx() || soc_is_omap54xx() || soc_is_dra7xx())
+	if (data->flags & PRM_HAS_IO_WAKEUP)
 		prm_features |= PRM_HAS_IO_WAKEUP;
 
-	if (!soc_is_dra7xx())
+	if (data->flags & PRM_HAS_VOLTAGE)
 		prm_features |= PRM_HAS_VOLTAGE;
 
 	omap4_prminst_set_prm_dev_inst(data->device_inst_offset);
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index b828352..d5bb649 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -651,18 +651,21 @@ static struct omap_prcm_init_data omap4_prm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_PRM,
 	.init = omap44xx_prm_init,
 	.device_inst_offset = OMAP4430_PRM_DEVICE_INST,
+	.flags = PRM_HAS_IO_WAKEUP | PRM_HAS_VOLTAGE,
 };
 
 static struct omap_prcm_init_data omap5_prm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_PRM,
 	.init = omap44xx_prm_init,
 	.device_inst_offset = OMAP54XX_PRM_DEVICE_INST,
+	.flags = PRM_HAS_IO_WAKEUP | PRM_HAS_VOLTAGE,
 };
 
 static struct omap_prcm_init_data dra7_prm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_PRM,
 	.init = omap44xx_prm_init,
 	.device_inst_offset = DRA7XX_PRM_DEVICE_INST,
+	.flags = PRM_HAS_IO_WAKEUP,
 };
 
 static struct omap_prcm_init_data am4_prm_data __initdata = {
-- 
1.7.9.5

[PATCH 22/23] ARM: OMAP4+: PRM: setup prm_features from the PRM init time flags

[Tero Kristo]

Currently some cpu_is_X checks are used to setup prm_features, however
the same can be accomplished by just passing these flags from the PRM
init data. This is done in preparation to make PRM a separate driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/prm44xx.c    |    4 ++--
 arch/arm/mach-omap2/prm_common.c |    3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index 1994dcc..af12302b 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -706,10 +706,10 @@ int __init omap44xx_prm_init(const struct omap_prcm_init_data *data)
 {
 	omap_prm_base_init();
 
-	if (cpu_is_omap44xx() || soc_is_omap54xx() || soc_is_dra7xx())
+	if (data->flags & PRM_HAS_IO_WAKEUP)
 		prm_features |= PRM_HAS_IO_WAKEUP;
 
-	if (!soc_is_dra7xx())
+	if (data->flags & PRM_HAS_VOLTAGE)
 		prm_features |= PRM_HAS_VOLTAGE;
 
 	omap4_prminst_set_prm_dev_inst(data->device_inst_offset);
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index b828352..d5bb649 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -651,18 +651,21 @@ static struct omap_prcm_init_data omap4_prm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_PRM,
 	.init = omap44xx_prm_init,
 	.device_inst_offset = OMAP4430_PRM_DEVICE_INST,
+	.flags = PRM_HAS_IO_WAKEUP | PRM_HAS_VOLTAGE,
 };
 
 static struct omap_prcm_init_data omap5_prm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_PRM,
 	.init = omap44xx_prm_init,
 	.device_inst_offset = OMAP54XX_PRM_DEVICE_INST,
+	.flags = PRM_HAS_IO_WAKEUP | PRM_HAS_VOLTAGE,
 };
 
 static struct omap_prcm_init_data dra7_prm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_PRM,
 	.init = omap44xx_prm_init,
 	.device_inst_offset = DRA7XX_PRM_DEVICE_INST,
+	.flags = PRM_HAS_IO_WAKEUP,
 };
 
 static struct omap_prcm_init_data am4_prm_data __initdata = {
-- 
1.7.9.5

[PATCH 23/23] ARM: OMAP4+: PRM: get rid of cpu_is_omap44xx calls from interrupt init

[Tero Kristo]

The compatible DT node is now passed with the prm init, so there is no
need to do node matching here again. Added a new flag to the init data
also, to detect default IRQ support for OMAP4. Also, any booting omap4
DT setup always has a PRM node, so there is no need to check against
the special case where it would be missing.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/prm.h        |    2 ++
 arch/arm/mach-omap2/prm44xx.c    |   50 +++++++++++++++-----------------------
 arch/arm/mach-omap2/prm_common.c |    2 +-
 3 files changed, 22 insertions(+), 32 deletions(-)

diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index 3936e6c..c64cb8e 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -29,9 +29,11 @@ int omap2_prcm_base_init(void);
  *
  * PRM_HAS_IO_WAKEUP: has IO wakeup capability
  * PRM_HAS_VOLTAGE: has voltage domains
+ * PRM_IRQ_DEFAULT: use default irq number for PRM irq
  */
 #define PRM_HAS_IO_WAKEUP	(1 << 0)
 #define PRM_HAS_VOLTAGE		(1 << 1)
+#define PRM_IRQ_DEFAULT		(1 << 2)
 
 /*
  * MAX_MODULE_SOFTRESET_WAIT: Maximum microseconds to wait for OMAP
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index af12302b..ce16f2f 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -702,10 +702,14 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
 	.vp_clear_txdone	= omap4_prm_vp_clear_txdone,
 };
 
+static const struct omap_prcm_init_data *prm_init_data;
+
 int __init omap44xx_prm_init(const struct omap_prcm_init_data *data)
 {
 	omap_prm_base_init();
 
+	prm_init_data = data;
+
 	if (data->flags & PRM_HAS_IO_WAKEUP)
 		prm_features |= PRM_HAS_IO_WAKEUP;
 
@@ -717,16 +721,8 @@ int __init omap44xx_prm_init(const struct omap_prcm_init_data *data)
 	return prm_register(&omap44xx_prm_ll_data);
 }
 
-static struct of_device_id omap_prm_dt_match_table[] = {
-	{ .compatible = "ti,omap4-prm" },
-	{ .compatible = "ti,omap5-prm" },
-	{ .compatible = "ti,dra7-prm" },
-	{ }
-};
-
 static int omap44xx_prm_late_init(void)
 {
-	struct device_node *np;
 	int irq_num;
 
 	if (!(prm_features & PRM_HAS_IO_WAKEUP))
@@ -736,31 +732,23 @@ static int omap44xx_prm_late_init(void)
 	if (!of_have_populated_dt())
 		return 0;
 
-	np = of_find_matching_node(NULL, omap_prm_dt_match_table);
-
-	if (!np) {
-		/* Default loaded up with OMAP4 values */
-		if (!cpu_is_omap44xx())
-			return 0;
-	} else {
-		irq_num = of_irq_get(np, 0);
-		/*
-		 * Already have OMAP4 IRQ num. For all other platforms, we need
-		 * IRQ numbers from DT
-		 */
-		if (irq_num < 0 && !cpu_is_omap44xx()) {
-			if (irq_num == -EPROBE_DEFER)
-				return irq_num;
-
-			/* Have nothing to do */
-			return 0;
-		}
-
-		/* Once OMAP4 DT is filled as well */
-		if (irq_num >= 0)
-			omap4_prcm_irq_setup.irq = irq_num;
+	irq_num = of_irq_get(prm_init_data->np, 0);
+	/*
+	 * Already have OMAP4 IRQ num. For all other platforms, we need
+	 * IRQ numbers from DT
+	 */
+	if (irq_num < 0 && !(prm_init_data->flags & PRM_IRQ_DEFAULT)) {
+		if (irq_num == -EPROBE_DEFER)
+			return irq_num;
+
+		/* Have nothing to do */
+		return 0;
 	}
 
+	/* Once OMAP4 DT is filled as well */
+	if (irq_num >= 0)
+		omap4_prcm_irq_setup.irq = irq_num;
+
 	omap44xx_prm_enable_io_wakeup();
 
 	return omap_prcm_register_chain_handler(&omap4_prcm_irq_setup);
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index d5bb649..3f26df6 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -651,7 +651,7 @@ static struct omap_prcm_init_data omap4_prm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_PRM,
 	.init = omap44xx_prm_init,
 	.device_inst_offset = OMAP4430_PRM_DEVICE_INST,
-	.flags = PRM_HAS_IO_WAKEUP | PRM_HAS_VOLTAGE,
+	.flags = PRM_HAS_IO_WAKEUP | PRM_HAS_VOLTAGE | PRM_IRQ_DEFAULT,
 };
 
 static struct omap_prcm_init_data omap5_prm_data __initdata = {
-- 
1.7.9.5

[PATCH 23/23] ARM: OMAP4+: PRM: get rid of cpu_is_omap44xx calls from interrupt init

[Tero Kristo]

The compatible DT node is now passed with the prm init, so there is no
need to do node matching here again. Added a new flag to the init data
also, to detect default IRQ support for OMAP4. Also, any booting omap4
DT setup always has a PRM node, so there is no need to check against
the special case where it would be missing.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/prm.h        |    2 ++
 arch/arm/mach-omap2/prm44xx.c    |   50 +++++++++++++++-----------------------
 arch/arm/mach-omap2/prm_common.c |    2 +-
 3 files changed, 22 insertions(+), 32 deletions(-)

diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index 3936e6c..c64cb8e 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -29,9 +29,11 @@ int omap2_prcm_base_init(void);
  *
  * PRM_HAS_IO_WAKEUP: has IO wakeup capability
  * PRM_HAS_VOLTAGE: has voltage domains
+ * PRM_IRQ_DEFAULT: use default irq number for PRM irq
  */
 #define PRM_HAS_IO_WAKEUP	(1 << 0)
 #define PRM_HAS_VOLTAGE		(1 << 1)
+#define PRM_IRQ_DEFAULT		(1 << 2)
 
 /*
  * MAX_MODULE_SOFTRESET_WAIT: Maximum microseconds to wait for OMAP
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index af12302b..ce16f2f 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -702,10 +702,14 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
 	.vp_clear_txdone	= omap4_prm_vp_clear_txdone,
 };
 
+static const struct omap_prcm_init_data *prm_init_data;
+
 int __init omap44xx_prm_init(const struct omap_prcm_init_data *data)
 {
 	omap_prm_base_init();
 
+	prm_init_data = data;
+
 	if (data->flags & PRM_HAS_IO_WAKEUP)
 		prm_features |= PRM_HAS_IO_WAKEUP;
 
@@ -717,16 +721,8 @@ int __init omap44xx_prm_init(const struct omap_prcm_init_data *data)
 	return prm_register(&omap44xx_prm_ll_data);
 }
 
-static struct of_device_id omap_prm_dt_match_table[] = {
-	{ .compatible = "ti,omap4-prm" },
-	{ .compatible = "ti,omap5-prm" },
-	{ .compatible = "ti,dra7-prm" },
-	{ }
-};
-
 static int omap44xx_prm_late_init(void)
 {
-	struct device_node *np;
 	int irq_num;
 
 	if (!(prm_features & PRM_HAS_IO_WAKEUP))
@@ -736,31 +732,23 @@ static int omap44xx_prm_late_init(void)
 	if (!of_have_populated_dt())
 		return 0;
 
-	np = of_find_matching_node(NULL, omap_prm_dt_match_table);
-
-	if (!np) {
-		/* Default loaded up with OMAP4 values */
-		if (!cpu_is_omap44xx())
-			return 0;
-	} else {
-		irq_num = of_irq_get(np, 0);
-		/*
-		 * Already have OMAP4 IRQ num. For all other platforms, we need
-		 * IRQ numbers from DT
-		 */
-		if (irq_num < 0 && !cpu_is_omap44xx()) {
-			if (irq_num == -EPROBE_DEFER)
-				return irq_num;
-
-			/* Have nothing to do */
-			return 0;
-		}
-
-		/* Once OMAP4 DT is filled as well */
-		if (irq_num >= 0)
-			omap4_prcm_irq_setup.irq = irq_num;
+	irq_num = of_irq_get(prm_init_data->np, 0);
+	/*
+	 * Already have OMAP4 IRQ num. For all other platforms, we need
+	 * IRQ numbers from DT
+	 */
+	if (irq_num < 0 && !(prm_init_data->flags & PRM_IRQ_DEFAULT)) {
+		if (irq_num == -EPROBE_DEFER)
+			return irq_num;
+
+		/* Have nothing to do */
+		return 0;
 	}
 
+	/* Once OMAP4 DT is filled as well */
+	if (irq_num >= 0)
+		omap4_prcm_irq_setup.irq = irq_num;
+
 	omap44xx_prm_enable_io_wakeup();
 
 	return omap_prcm_register_chain_handler(&omap4_prcm_irq_setup);
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index d5bb649..3f26df6 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -651,7 +651,7 @@ static struct omap_prcm_init_data omap4_prm_data __initdata = {
 	.index = CLK_MEMMAP_INDEX_PRM,
 	.init = omap44xx_prm_init,
 	.device_inst_offset = OMAP4430_PRM_DEVICE_INST,
-	.flags = PRM_HAS_IO_WAKEUP | PRM_HAS_VOLTAGE,
+	.flags = PRM_HAS_IO_WAKEUP | PRM_HAS_VOLTAGE | PRM_IRQ_DEFAULT,
 };
 
 static struct omap_prcm_init_data omap5_prm_data __initdata = {
-- 
1.7.9.5

Re: [PATCH 16/23] ARM: OMAP4: omapdss: remove legacy pad muxing support

[Tomi Valkeinen]

[-- Attachment #1: Type: text/plain, Size: 468 bytes --]

On 27/11/14 17:51, Tero Kristo wrote:
> OMAP4 is DT only now, so the legacy mux support is not needed anymore.
> Padconf is used instead from the driver / DT. This removes the need
> for having the mux APIs exported from the control module driver.

We still use those mux functions for DT. The mux registers for DSI are
so funny that we can't use the normal padconf for them.

I did do some work to use syscon, but I never had time to finish it.

 Tomi



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[PATCH 16/23] ARM: OMAP4: omapdss: remove legacy pad muxing support

[Tomi Valkeinen]

On 27/11/14 17:51, Tero Kristo wrote:
> OMAP4 is DT only now, so the legacy mux support is not needed anymore.
> Padconf is used instead from the driver / DT. This removes the need
> for having the mux APIs exported from the control module driver.

We still use those mux functions for DT. The mux registers for DSI are
so funny that we can't use the normal padconf for them.

I did do some work to use syscon, but I never had time to finish it.

 Tomi


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Re: [PATCH 00/23] ARM: OMAP2+: PRCM cleanups towards 3.19 / part2

[Paul Walmsley]

On Thu, 27 Nov 2014, Tero Kristo wrote:

> Yet another PRCM cleanup set, towards making PRCM a separate driver.
> This set is most likely too late for 3.19, but hopefully it can make
> it to 3.20.

Yep too late for 3.19.

...

> Testing done:
> 

...

> omap3-beagle: boot, suspend (ret), suspend (off) (UART wakeup seems broken on 3.18-rc1 btw)

v3.18-rc1 UART wakeups worked here on both of the 35xx Beagles:

http://www.pwsan.com/omap/testlogs/test_v3.18-rc1/20141020095901/README.txt
http://www.pwsan.com/omap/testlogs/test_v3.18-rc1/20141020095901/pm/3530es3beagle/3530es3beagle_log.txt
http://www.pwsan.com/omap/testlogs/test_v3.18-rc1/20141020095901/pm/3530es31beagle/3530es31beagle_log.txt


- Paul

[PATCH 00/23] ARM: OMAP2+: PRCM cleanups towards 3.19 / part2

[Paul Walmsley]

On Thu, 27 Nov 2014, Tero Kristo wrote:

> Yet another PRCM cleanup set, towards making PRCM a separate driver.
> This set is most likely too late for 3.19, but hopefully it can make
> it to 3.20.

Yep too late for 3.19.

...

> Testing done:
> 

...

> omap3-beagle: boot, suspend (ret), suspend (off) (UART wakeup seems broken on 3.18-rc1 btw)

v3.18-rc1 UART wakeups worked here on both of the 35xx Beagles:

http://www.pwsan.com/omap/testlogs/test_v3.18-rc1/20141020095901/README.txt
http://www.pwsan.com/omap/testlogs/test_v3.18-rc1/20141020095901/pm/3530es3beagle/3530es3beagle_log.txt
http://www.pwsan.com/omap/testlogs/test_v3.18-rc1/20141020095901/pm/3530es31beagle/3530es31beagle_log.txt


- Paul

Re: [PATCH 16/23] ARM: OMAP4: omapdss: remove legacy pad muxing support

[Tero Kristo]

On 11/27/2014 06:09 PM, Tomi Valkeinen wrote:
> On 27/11/14 17:51, Tero Kristo wrote:
>> OMAP4 is DT only now, so the legacy mux support is not needed anymore.
>> Padconf is used instead from the driver / DT. This removes the need
>> for having the mux APIs exported from the control module driver.
>
> We still use those mux functions for DT. The mux registers for DSI are
> so funny that we can't use the normal padconf for them.

Ah hmm, so it seems, I overlooked the omapdss_init_of() function. Looks 
like some of the patches in this set needs to be dropped for now then, 
namely 16, 17, and patch 18 has to be modified.

The direct omap4 padconf hacks are very bad though. Maybe it should be 
changed to only allow access to that single DSIPHY register.

-Tero

> I did do some work to use syscon, but I never had time to finish it.
>
>   Tomi
>
>

[PATCH 16/23] ARM: OMAP4: omapdss: remove legacy pad muxing support

[Tero Kristo]

On 11/27/2014 06:09 PM, Tomi Valkeinen wrote:
> On 27/11/14 17:51, Tero Kristo wrote:
>> OMAP4 is DT only now, so the legacy mux support is not needed anymore.
>> Padconf is used instead from the driver / DT. This removes the need
>> for having the mux APIs exported from the control module driver.
>
> We still use those mux functions for DT. The mux registers for DSI are
> so funny that we can't use the normal padconf for them.

Ah hmm, so it seems, I overlooked the omapdss_init_of() function. Looks 
like some of the patches in this set needs to be dropped for now then, 
namely 16, 17, and patch 18 has to be modified.

The direct omap4 padconf hacks are very bad though. Maybe it should be 
changed to only allow access to that single DSIPHY register.

-Tero

> I did do some work to use syscon, but I never had time to finish it.
>
>   Tomi
>
>

Re: [PATCH 00/23] ARM: OMAP2+: PRCM cleanups towards 3.19 / part2

[Tero Kristo]

On 11/27/2014 09:15 PM, Paul Walmsley wrote:
> On Thu, 27 Nov 2014, Tero Kristo wrote:
>
>> Yet another PRCM cleanup set, towards making PRCM a separate driver.
>> This set is most likely too late for 3.19, but hopefully it can make
>> it to 3.20.
>
> Yep too late for 3.19.
>
> ...
>
>> Testing done:
>>
>
> ...
>
>> omap3-beagle: boot, suspend (ret), suspend (off) (UART wakeup seems broken on 3.18-rc1 btw)
>
> v3.18-rc1 UART wakeups worked here on both of the 35xx Beagles:
>
> http://www.pwsan.com/omap/testlogs/test_v3.18-rc1/20141020095901/README.txt
> http://www.pwsan.com/omap/testlogs/test_v3.18-rc1/20141020095901/pm/3530es3beagle/3530es3beagle_log.txt
> http://www.pwsan.com/omap/testlogs/test_v3.18-rc1/20141020095901/pm/3530es31beagle/3530es31beagle_log.txt

After investigating this a bit, it seems you are right. It looks like I 
just had wakeup disabled on the tty port, the default behaviour has 
changed at some point for some reason. After enabling wakeup, resume 
with console works also.

-Tero

[PATCH 00/23] ARM: OMAP2+: PRCM cleanups towards 3.19 / part2

[Tero Kristo]

On 11/27/2014 09:15 PM, Paul Walmsley wrote:
> On Thu, 27 Nov 2014, Tero Kristo wrote:
>
>> Yet another PRCM cleanup set, towards making PRCM a separate driver.
>> This set is most likely too late for 3.19, but hopefully it can make
>> it to 3.20.
>
> Yep too late for 3.19.
>
> ...
>
>> Testing done:
>>
>
> ...
>
>> omap3-beagle: boot, suspend (ret), suspend (off) (UART wakeup seems broken on 3.18-rc1 btw)
>
> v3.18-rc1 UART wakeups worked here on both of the 35xx Beagles:
>
> http://www.pwsan.com/omap/testlogs/test_v3.18-rc1/20141020095901/README.txt
> http://www.pwsan.com/omap/testlogs/test_v3.18-rc1/20141020095901/pm/3530es3beagle/3530es3beagle_log.txt
> http://www.pwsan.com/omap/testlogs/test_v3.18-rc1/20141020095901/pm/3530es31beagle/3530es31beagle_log.txt

After investigating this a bit, it seems you are right. It looks like I 
just had wakeup disabled on the tty port, the default behaviour has 
changed at some point for some reason. After enabling wakeup, resume 
with console works also.

-Tero

Re: [PATCH 04/23] ARM: OMAP24xx: clock: remove unused apll code

[Tony Lindgren]

* Tero Kristo <t-kristo@ti.com> [141127 07:53]:
> APLL clock type is no longer needed as the legacy clock support is removed.

I'm picking this patch into omap-for-v3.20/cleanup thanks.

Regards,

Tony

[PATCH 04/23] ARM: OMAP24xx: clock: remove unused apll code

[Tony Lindgren]

* Tero Kristo <t-kristo@ti.com> [141127 07:53]:
> APLL clock type is no longer needed as the legacy clock support is removed.

I'm picking this patch into omap-for-v3.20/cleanup thanks.

Regards,

Tony

Re: [PATCH 05/23] ARM: OMAP2: CM: remove unused PLL functions

[Tony Lindgren]

* Tero Kristo <t-kristo@ti.com> [141127 07:53]:
> omap2xxx_cm_get_pll_config and omap2xxx_cm_get_pll_status are not used
> for anything, so remove these.

I'm picking up this one to into omap-for-v3.20/cleanup.

Regards,

Tony

[PATCH 05/23] ARM: OMAP2: CM: remove unused PLL functions

[Tony Lindgren]

* Tero Kristo <t-kristo@ti.com> [141127 07:53]:
> omap2xxx_cm_get_pll_config and omap2xxx_cm_get_pll_status are not used
> for anything, so remove these.

I'm picking up this one to into omap-for-v3.20/cleanup.

Regards,

Tony

Re: [PATCH 08/23] ARM: OMAP3+: PRM: remove prm_get_reset_sources declaration from headers

[Tony Lindgren]

* Tero Kristo <t-kristo@ti.com> [141127 07:53]:
> There is no implementation for this anywhere, so remove it from the header
> files also.

Picking up this too into omap-for-v3.20/cleanup.

Tony

[PATCH 08/23] ARM: OMAP3+: PRM: remove prm_get_reset_sources declaration from headers

[Tony Lindgren]

* Tero Kristo <t-kristo@ti.com> [141127 07:53]:
> There is no implementation for this anywhere, so remove it from the header
> files also.

Picking up this too into omap-for-v3.20/cleanup.

Tony

Re: [PATCH 13/23] ARM: OMAP2+: CM: determine CM base address from device tree

[Paul Walmsley]

Hi Tero

On Thu, 27 Nov 2014, Tero Kristo wrote:

> There is no need to provide the CM base address through a low-level API
> from the low-level IO init, as this information is available through DT.
> Re-routed the parsing function to be called from the CM drivers also to
> simplify the implementation under io.c.
> 
> Signed-off-by: Tero Kristo <t-kristo@ti.com>

This one breaks boot on OMAP2430 (and presumably all other OMAP2xxx).  
Adding something like this seems to get it working.


- Paul

---
 arch/arm/mach-omap2/cm_common.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
index c2d7c7b3002c..1770364f0499 100644
--- a/arch/arm/mach-omap2/cm_common.c
+++ b/arch/arm/mach-omap2/cm_common.c
@@ -234,7 +234,12 @@ static struct omap_prcm_init_data omap3_cm_data = {
 	.offset = -OMAP3430_IVA2_MOD,
 };
 
+static struct omap_prcm_init_data omap2_prcm_data = {
+	.index = CLK_MEMMAP_INDEX_CM1,
+};
+
 static struct of_device_id omap_cm_dt_match_table[] = {
+	{ .compatible = "ti,omap2-prcm", .data = &omap2_prcm_data },
 	{ .compatible = "ti,omap3-cm", .data = &omap3_cm_data },
 	{ .compatible = "ti,omap4-cm1", .data = &cm_data },
 	{ .compatible = "ti,omap4-cm2", .data = &cm2_data },
-- 
2.1.4

[PATCH 13/23] ARM: OMAP2+: CM: determine CM base address from device tree

[Paul Walmsley]

Hi Tero

On Thu, 27 Nov 2014, Tero Kristo wrote:

> There is no need to provide the CM base address through a low-level API
> from the low-level IO init, as this information is available through DT.
> Re-routed the parsing function to be called from the CM drivers also to
> simplify the implementation under io.c.
> 
> Signed-off-by: Tero Kristo <t-kristo@ti.com>

This one breaks boot on OMAP2430 (and presumably all other OMAP2xxx).  
Adding something like this seems to get it working.


- Paul

---
 arch/arm/mach-omap2/cm_common.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
index c2d7c7b3002c..1770364f0499 100644
--- a/arch/arm/mach-omap2/cm_common.c
+++ b/arch/arm/mach-omap2/cm_common.c
@@ -234,7 +234,12 @@ static struct omap_prcm_init_data omap3_cm_data = {
 	.offset = -OMAP3430_IVA2_MOD,
 };
 
+static struct omap_prcm_init_data omap2_prcm_data = {
+	.index = CLK_MEMMAP_INDEX_CM1,
+};
+
 static struct of_device_id omap_cm_dt_match_table[] = {
+	{ .compatible = "ti,omap2-prcm", .data = &omap2_prcm_data },
 	{ .compatible = "ti,omap3-cm", .data = &omap3_cm_data },
 	{ .compatible = "ti,omap4-cm1", .data = &cm_data },
 	{ .compatible = "ti,omap4-cm2", .data = &cm2_data },
-- 
2.1.4

Re: [PATCH 16/23] ARM: OMAP4: omapdss: remove legacy pad muxing support

[Paul Walmsley]

On Thu, 27 Nov 2014, Tero Kristo wrote:

> OMAP4 is DT only now, so the legacy mux support is not needed anymore.
> Padconf is used instead from the driver / DT. This removes the need
> for having the mux APIs exported from the control module driver.
> 
> Signed-off-by: Tero Kristo <t-kristo@ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>

Dropping since Tomi mentioned legacy mux support is still in use.


- Paul

[PATCH 16/23] ARM: OMAP4: omapdss: remove legacy pad muxing support

[Paul Walmsley]

On Thu, 27 Nov 2014, Tero Kristo wrote:

> OMAP4 is DT only now, so the legacy mux support is not needed anymore.
> Padconf is used instead from the driver / DT. This removes the need
> for having the mux APIs exported from the control module driver.
> 
> Signed-off-by: Tero Kristo <t-kristo@ti.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>

Dropping since Tomi mentioned legacy mux support is still in use.


- Paul

Re: [PATCH 17/23] ARM: OMAP4: control: remove support for legacy padconf APIs

[Paul Walmsley]

On Thu, 27 Nov 2014, Tero Kristo wrote:

> These are no longer needed for anything with the introduction of
> pinctrl DT support, thus removed.
> 
> Signed-off-by: Tero Kristo <t-kristo@ti.com>

Dropping since Tomi mentioned that the legacy mux support is still in use.


- Paul

[PATCH 17/23] ARM: OMAP4: control: remove support for legacy padconf APIs

[Paul Walmsley]

On Thu, 27 Nov 2014, Tero Kristo wrote:

> These are no longer needed for anything with the introduction of
> pinctrl DT support, thus removed.
> 
> Signed-off-by: Tero Kristo <t-kristo@ti.com>

Dropping since Tomi mentioned that the legacy mux support is still in use.


- Paul

Re: [PATCH 01/23] ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

[Paul Walmsley]

+ Tomi 

On Thu, 27 Nov 2014, Tero Kristo wrote:

> Splits the clock provider init out of the PRM driver and moves it to
> clock driver. This is needed so that once the PRCM drivers are separated,
> they can logically just access the clock driver not needing to go through
> common PRM code. This would be wrong in the case of control module for
> example.
> 
> Signed-off-by: Tero Kristo <t-kristo@ti.com>

This patch moves things in the wrong direction (ie, rather than keeping 
the PRM register accesses in the PRM code, it moves PRM register accesses 
into the clock code).  But I see that a subsequent patch in this series 
moves them back.  So this change is temporary and that seems reasonable to 
me.

However, as long as the clock code wants to do low-level register accesses 
to PRM/CM/SCM registers, there needs to be some way to keep register 
updates originating from the clock code from racing with register updates 
coming from other code (e.g. non-clock-related PRM/CM/SCM accesses). So 
I've changed this patch to use regmap (as below), and the followup patch 
later in the series will be changed too.  Seems to work so far but let's 
see how things go with the rest of the series.


- Paul

---
 arch/arm/mach-omap2/clock.c       | 103 ++++++++++++++++++++++++++++++++++----
 arch/arm/mach-omap2/clock.h       |   4 +-
 arch/arm/mach-omap2/prcm-common.h |   2 +
 arch/arm/mach-omap2/prm_common.c  |  34 +------------
 4 files changed, 97 insertions(+), 46 deletions(-)

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 6ad5b4dbd33e..5fd03e17560f 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -24,6 +24,8 @@
 #include <linux/io.h>
 #include <linux/bitops.h>
 #include <linux/clk-private.h>
+#include <linux/of_address.h>
+#include <linux/regmap.h>
 #include <asm/cpu.h>
 
 #include <trace/events/power.h>
@@ -73,32 +75,111 @@ struct ti_clk_features ti_clk_features;
 static bool clkdm_control = true;
 
 static LIST_HEAD(clk_hw_omap_clocks);
-void __iomem *clk_memmaps[CLK_MAX_MEMMAPS];
+static struct regmap *clk_memmaps[CLK_MAX_MEMMAPS];
+
+static struct regmap_config prcm_regmap_config = {
+	.reg_bits	= 32,
+	.val_bits	= 32,
+	.reg_stride	= 4,
+	.fast_io	= 1,
+};
+
+static void clk_memmap_writel(u32 val, void __iomem *reg)
+{
+	struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
+
+	/*
+	 * XXX Can't really continue if an error occurred here, since
+	 * this function assumes that the write will always succeed
+	 */
+	if (regmap_write(clk_memmaps[r->index], r->offset, val)) {
+		WARN(1, "omap clock regmap write to %d %d failed\n",
+		     r->index, r->offset);
+		BUG();
+	}
+}
+
+static u32 clk_memmap_readl(void __iomem *reg)
+{
+	struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
+	unsigned int val = 0;
+
+	/*
+	 * XXX Can't really continue if an error occurred here, since
+	 * this function assumes that the read will always succeed
+	 */
+	if (regmap_read(clk_memmaps[r->index], r->offset, &val)) {
+		WARN(1, "omap clock regmap read from %d %d failed\n",
+		     r->index, r->offset);
+		BUG();
+	}
+
+	return val;
+}
 
 void omap2_clk_writel(u32 val, struct clk_hw_omap *clk, void __iomem *reg)
 {
-	if (clk->flags & MEMMAP_ADDRESSING) {
-		struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
-		writel_relaxed(val, clk_memmaps[r->index] + r->offset);
-	} else {
+	if (clk->flags & MEMMAP_ADDRESSING)
+		clk_memmap_writel(val, reg);
+	else
 		writel_relaxed(val, reg);
-	}
 }
 
 u32 omap2_clk_readl(struct clk_hw_omap *clk, void __iomem *reg)
 {
 	u32 val;
 
-	if (clk->flags & MEMMAP_ADDRESSING) {
-		struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
-		val = readl_relaxed(clk_memmaps[r->index] + r->offset);
-	} else {
+	if (clk->flags & MEMMAP_ADDRESSING)
+		val = clk_memmap_readl(reg);
+	else
 		val = readl_relaxed(reg);
-	}
 
 	return val;
 }
 
+static struct ti_clk_ll_ops omap_clk_ll_ops = {
+	.clk_readl = clk_memmap_readl,
+	.clk_writel = clk_memmap_writel,
+};
+
+/**
+ * omap2_clk_provider_init - initialize a clock provider
+ * @match_table: DT device table to match for devices to init
+ *
+ * Initializes a clock provider module (CM/PRM etc.), allocating the
+ * memory mapping, allocating the mapping index and initializing the
+ * low level driver infrastructure. Returns 0 in success, -ENOMEM in
+ * failure.
+ */
+int __init omap2_clk_provider_init(const struct of_device_id *match_table)
+{
+	struct device_node *np;
+	void __iomem *mem;
+	static int memmap_index;
+	struct regmap *regmap;
+
+	ti_clk_ll_ops = &omap_clk_ll_ops;
+
+	for_each_matching_node(np, match_table) {
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+
+		regmap = regmap_init_mmio(NULL, mem, &prcm_regmap_config);
+		if (IS_ERR(regmap)) {
+			pr_err("omap2 clock: could not create regmap for %s\n",
+			       of_node_full_name(np));
+			continue;
+		}
+
+		clk_memmaps[memmap_index] = regmap;
+		ti_dt_clk_init_provider(np, memmap_index);
+		memmap_index++;
+	}
+
+	return 0;
+}
+
 /*
  * OMAP2+ specific clock functions
  */
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 1cf9dd85248a..a3b634978a0f 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -267,12 +267,12 @@ extern const struct clksel_rate div_1_3_rates[];
 extern const struct clksel_rate div_1_4_rates[];
 extern const struct clksel_rate div31_1to31_rates[];
 
-extern void __iomem *clk_memmaps[];
-
 extern int omap2_clkops_enable_clkdm(struct clk_hw *hw);
 extern void omap2_clkops_disable_clkdm(struct clk_hw *hw);
 
 extern void omap_clocks_register(struct omap_clk *oclks, int cnt);
 
+int __init omap2_clk_provider_init(const struct of_device_id *match_table);
+
 void __init ti_clk_init_features(void);
 #endif
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index a8e4b582c527..22afef0a4794 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -517,6 +517,8 @@ struct omap_prcm_irq_setup {
 	.priority = _priority				\
 	}
 
+struct of_device_id;
+
 extern void omap_prcm_irq_cleanup(void);
 extern int omap_prcm_register_chain_handler(
 	struct omap_prcm_irq_setup *irq_setup);
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 779940cb6e56..9f736d282303 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -590,41 +590,9 @@ static const struct of_device_id omap_prcm_dt_match_table[] = {
 	{ }
 };
 
-static struct clk_hw_omap memmap_dummy_ck = {
-	.flags = MEMMAP_ADDRESSING,
-};
-
-static u32 prm_clk_readl(void __iomem *reg)
-{
-	return omap2_clk_readl(&memmap_dummy_ck, reg);
-}
-
-static void prm_clk_writel(u32 val, void __iomem *reg)
-{
-	omap2_clk_writel(val, &memmap_dummy_ck, reg);
-}
-
-static struct ti_clk_ll_ops omap_clk_ll_ops = {
-	.clk_readl = prm_clk_readl,
-	.clk_writel = prm_clk_writel,
-};
-
 int __init of_prcm_init(void)
 {
-	struct device_node *np;
-	void __iomem *mem;
-	int memmap_index = 0;
-
-	ti_clk_ll_ops = &omap_clk_ll_ops;
-
-	for_each_matching_node(np, omap_prcm_dt_match_table) {
-		mem = of_iomap(np, 0);
-		clk_memmaps[memmap_index] = mem;
-		ti_dt_clk_init_provider(np, memmap_index);
-		memmap_index++;
-	}
-
-	return 0;
+	return omap2_clk_provider_init(omap_prcm_dt_match_table);
 }
 
 static int __init prm_late_init(void)
-- 
2.1.4

[PATCH 01/23] ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

[Paul Walmsley]

+ Tomi 

On Thu, 27 Nov 2014, Tero Kristo wrote:

> Splits the clock provider init out of the PRM driver and moves it to
> clock driver. This is needed so that once the PRCM drivers are separated,
> they can logically just access the clock driver not needing to go through
> common PRM code. This would be wrong in the case of control module for
> example.
> 
> Signed-off-by: Tero Kristo <t-kristo@ti.com>

This patch moves things in the wrong direction (ie, rather than keeping 
the PRM register accesses in the PRM code, it moves PRM register accesses 
into the clock code).  But I see that a subsequent patch in this series 
moves them back.  So this change is temporary and that seems reasonable to 
me.

However, as long as the clock code wants to do low-level register accesses 
to PRM/CM/SCM registers, there needs to be some way to keep register 
updates originating from the clock code from racing with register updates 
coming from other code (e.g. non-clock-related PRM/CM/SCM accesses). So 
I've changed this patch to use regmap (as below), and the followup patch 
later in the series will be changed too.  Seems to work so far but let's 
see how things go with the rest of the series.


- Paul

---
 arch/arm/mach-omap2/clock.c       | 103 ++++++++++++++++++++++++++++++++++----
 arch/arm/mach-omap2/clock.h       |   4 +-
 arch/arm/mach-omap2/prcm-common.h |   2 +
 arch/arm/mach-omap2/prm_common.c  |  34 +------------
 4 files changed, 97 insertions(+), 46 deletions(-)

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 6ad5b4dbd33e..5fd03e17560f 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -24,6 +24,8 @@
 #include <linux/io.h>
 #include <linux/bitops.h>
 #include <linux/clk-private.h>
+#include <linux/of_address.h>
+#include <linux/regmap.h>
 #include <asm/cpu.h>
 
 #include <trace/events/power.h>
@@ -73,32 +75,111 @@ struct ti_clk_features ti_clk_features;
 static bool clkdm_control = true;
 
 static LIST_HEAD(clk_hw_omap_clocks);
-void __iomem *clk_memmaps[CLK_MAX_MEMMAPS];
+static struct regmap *clk_memmaps[CLK_MAX_MEMMAPS];
+
+static struct regmap_config prcm_regmap_config = {
+	.reg_bits	= 32,
+	.val_bits	= 32,
+	.reg_stride	= 4,
+	.fast_io	= 1,
+};
+
+static void clk_memmap_writel(u32 val, void __iomem *reg)
+{
+	struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
+
+	/*
+	 * XXX Can't really continue if an error occurred here, since
+	 * this function assumes that the write will always succeed
+	 */
+	if (regmap_write(clk_memmaps[r->index], r->offset, val)) {
+		WARN(1, "omap clock regmap write to %d %d failed\n",
+		     r->index, r->offset);
+		BUG();
+	}
+}
+
+static u32 clk_memmap_readl(void __iomem *reg)
+{
+	struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
+	unsigned int val = 0;
+
+	/*
+	 * XXX Can't really continue if an error occurred here, since
+	 * this function assumes that the read will always succeed
+	 */
+	if (regmap_read(clk_memmaps[r->index], r->offset, &val)) {
+		WARN(1, "omap clock regmap read from %d %d failed\n",
+		     r->index, r->offset);
+		BUG();
+	}
+
+	return val;
+}
 
 void omap2_clk_writel(u32 val, struct clk_hw_omap *clk, void __iomem *reg)
 {
-	if (clk->flags & MEMMAP_ADDRESSING) {
-		struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
-		writel_relaxed(val, clk_memmaps[r->index] + r->offset);
-	} else {
+	if (clk->flags & MEMMAP_ADDRESSING)
+		clk_memmap_writel(val, reg);
+	else
 		writel_relaxed(val, reg);
-	}
 }
 
 u32 omap2_clk_readl(struct clk_hw_omap *clk, void __iomem *reg)
 {
 	u32 val;
 
-	if (clk->flags & MEMMAP_ADDRESSING) {
-		struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
-		val = readl_relaxed(clk_memmaps[r->index] + r->offset);
-	} else {
+	if (clk->flags & MEMMAP_ADDRESSING)
+		val = clk_memmap_readl(reg);
+	else
 		val = readl_relaxed(reg);
-	}
 
 	return val;
 }
 
+static struct ti_clk_ll_ops omap_clk_ll_ops = {
+	.clk_readl = clk_memmap_readl,
+	.clk_writel = clk_memmap_writel,
+};
+
+/**
+ * omap2_clk_provider_init - initialize a clock provider
+ * @match_table: DT device table to match for devices to init
+ *
+ * Initializes a clock provider module (CM/PRM etc.), allocating the
+ * memory mapping, allocating the mapping index and initializing the
+ * low level driver infrastructure. Returns 0 in success, -ENOMEM in
+ * failure.
+ */
+int __init omap2_clk_provider_init(const struct of_device_id *match_table)
+{
+	struct device_node *np;
+	void __iomem *mem;
+	static int memmap_index;
+	struct regmap *regmap;
+
+	ti_clk_ll_ops = &omap_clk_ll_ops;
+
+	for_each_matching_node(np, match_table) {
+		mem = of_iomap(np, 0);
+		if (!mem)
+			return -ENOMEM;
+
+		regmap = regmap_init_mmio(NULL, mem, &prcm_regmap_config);
+		if (IS_ERR(regmap)) {
+			pr_err("omap2 clock: could not create regmap for %s\n",
+			       of_node_full_name(np));
+			continue;
+		}
+
+		clk_memmaps[memmap_index] = regmap;
+		ti_dt_clk_init_provider(np, memmap_index);
+		memmap_index++;
+	}
+
+	return 0;
+}
+
 /*
  * OMAP2+ specific clock functions
  */
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 1cf9dd85248a..a3b634978a0f 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -267,12 +267,12 @@ extern const struct clksel_rate div_1_3_rates[];
 extern const struct clksel_rate div_1_4_rates[];
 extern const struct clksel_rate div31_1to31_rates[];
 
-extern void __iomem *clk_memmaps[];
-
 extern int omap2_clkops_enable_clkdm(struct clk_hw *hw);
 extern void omap2_clkops_disable_clkdm(struct clk_hw *hw);
 
 extern void omap_clocks_register(struct omap_clk *oclks, int cnt);
 
+int __init omap2_clk_provider_init(const struct of_device_id *match_table);
+
 void __init ti_clk_init_features(void);
 #endif
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index a8e4b582c527..22afef0a4794 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -517,6 +517,8 @@ struct omap_prcm_irq_setup {
 	.priority = _priority				\
 	}
 
+struct of_device_id;
+
 extern void omap_prcm_irq_cleanup(void);
 extern int omap_prcm_register_chain_handler(
 	struct omap_prcm_irq_setup *irq_setup);
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 779940cb6e56..9f736d282303 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -590,41 +590,9 @@ static const struct of_device_id omap_prcm_dt_match_table[] = {
 	{ }
 };
 
-static struct clk_hw_omap memmap_dummy_ck = {
-	.flags = MEMMAP_ADDRESSING,
-};
-
-static u32 prm_clk_readl(void __iomem *reg)
-{
-	return omap2_clk_readl(&memmap_dummy_ck, reg);
-}
-
-static void prm_clk_writel(u32 val, void __iomem *reg)
-{
-	omap2_clk_writel(val, &memmap_dummy_ck, reg);
-}
-
-static struct ti_clk_ll_ops omap_clk_ll_ops = {
-	.clk_readl = prm_clk_readl,
-	.clk_writel = prm_clk_writel,
-};
-
 int __init of_prcm_init(void)
 {
-	struct device_node *np;
-	void __iomem *mem;
-	int memmap_index = 0;
-
-	ti_clk_ll_ops = &omap_clk_ll_ops;
-
-	for_each_matching_node(np, omap_prcm_dt_match_table) {
-		mem = of_iomap(np, 0);
-		clk_memmaps[memmap_index] = mem;
-		ti_dt_clk_init_provider(np, memmap_index);
-		memmap_index++;
-	}
-
-	return 0;
+	return omap2_clk_provider_init(omap_prcm_dt_match_table);
 }
 
 static int __init prm_late_init(void)
-- 
2.1.4

Re: [PATCH 01/23] ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

[Tomi Valkeinen]

[-- Attachment #1: Type: text/plain, Size: 1600 bytes --]

On 24/01/15 23:51, Paul Walmsley wrote:
> + Tomi 
> 
> On Thu, 27 Nov 2014, Tero Kristo wrote:
> 
>> Splits the clock provider init out of the PRM driver and moves it to
>> clock driver. This is needed so that once the PRCM drivers are separated,
>> they can logically just access the clock driver not needing to go through
>> common PRM code. This would be wrong in the case of control module for
>> example.
>>
>> Signed-off-by: Tero Kristo <t-kristo@ti.com>
> 
> This patch moves things in the wrong direction (ie, rather than keeping 
> the PRM register accesses in the PRM code, it moves PRM register accesses 
> into the clock code).  But I see that a subsequent patch in this series 
> moves them back.  So this change is temporary and that seems reasonable to 
> me.
> 
> However, as long as the clock code wants to do low-level register accesses 
> to PRM/CM/SCM registers, there needs to be some way to keep register 
> updates originating from the clock code from racing with register updates 
> coming from other code (e.g. non-clock-related PRM/CM/SCM accesses). So 
> I've changed this patch to use regmap (as below), and the followup patch 
> later in the series will be changed too.  Seems to work so far but let's 
> see how things go with the rest of the series.

I'm not sure if I miss something, but regmap_write does not protect from
problems if there are multiple users for the same registers. You need to
use regmap_update_bits() to get a protected read/write sequence, in
which you can change only the bits that you want to change.

 Tomi



[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]

[PATCH 01/23] ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

[Tomi Valkeinen]

On 24/01/15 23:51, Paul Walmsley wrote:
> + Tomi 
> 
> On Thu, 27 Nov 2014, Tero Kristo wrote:
> 
>> Splits the clock provider init out of the PRM driver and moves it to
>> clock driver. This is needed so that once the PRCM drivers are separated,
>> they can logically just access the clock driver not needing to go through
>> common PRM code. This would be wrong in the case of control module for
>> example.
>>
>> Signed-off-by: Tero Kristo <t-kristo@ti.com>
> 
> This patch moves things in the wrong direction (ie, rather than keeping 
> the PRM register accesses in the PRM code, it moves PRM register accesses 
> into the clock code).  But I see that a subsequent patch in this series 
> moves them back.  So this change is temporary and that seems reasonable to 
> me.
> 
> However, as long as the clock code wants to do low-level register accesses 
> to PRM/CM/SCM registers, there needs to be some way to keep register 
> updates originating from the clock code from racing with register updates 
> coming from other code (e.g. non-clock-related PRM/CM/SCM accesses). So 
> I've changed this patch to use regmap (as below), and the followup patch 
> later in the series will be changed too.  Seems to work so far but let's 
> see how things go with the rest of the series.

I'm not sure if I miss something, but regmap_write does not protect from
problems if there are multiple users for the same registers. You need to
use regmap_update_bits() to get a protected read/write sequence, in
which you can change only the bits that you want to change.

 Tomi


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Re: [PATCH 01/23] ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

[Tony Lindgren]

* Tomi Valkeinen <tomi.valkeinen@ti.com> [150126 02:42]:
> On 24/01/15 23:51, Paul Walmsley wrote:
> > + Tomi 
> > 
> > On Thu, 27 Nov 2014, Tero Kristo wrote:
> > 
> >> Splits the clock provider init out of the PRM driver and moves it to
> >> clock driver. This is needed so that once the PRCM drivers are separated,
> >> they can logically just access the clock driver not needing to go through
> >> common PRM code. This would be wrong in the case of control module for
> >> example.
> >>
> >> Signed-off-by: Tero Kristo <t-kristo@ti.com>
> > 
> > This patch moves things in the wrong direction (ie, rather than keeping 
> > the PRM register accesses in the PRM code, it moves PRM register accesses 
> > into the clock code).  But I see that a subsequent patch in this series 
> > moves them back.  So this change is temporary and that seems reasonable to 
> > me.
> > 
> > However, as long as the clock code wants to do low-level register accesses 
> > to PRM/CM/SCM registers, there needs to be some way to keep register 
> > updates originating from the clock code from racing with register updates 
> > coming from other code (e.g. non-clock-related PRM/CM/SCM accesses). So 
> > I've changed this patch to use regmap (as below), and the followup patch 
> > later in the series will be changed too.  Seems to work so far but let's 
> > see how things go with the rest of the series.
> 
> I'm not sure if I miss something, but regmap_write does not protect from
> problems if there are multiple users for the same registers. You need to
> use regmap_update_bits() to get a protected read/write sequence, in
> which you can change only the bits that you want to change.

To me it seems that issue can be fixed by making all the code use regmap.
AFAIK that should work for the legacy code too.

Regards,

Tony

[PATCH 01/23] ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

[Tony Lindgren]

* Tomi Valkeinen <tomi.valkeinen@ti.com> [150126 02:42]:
> On 24/01/15 23:51, Paul Walmsley wrote:
> > + Tomi 
> > 
> > On Thu, 27 Nov 2014, Tero Kristo wrote:
> > 
> >> Splits the clock provider init out of the PRM driver and moves it to
> >> clock driver. This is needed so that once the PRCM drivers are separated,
> >> they can logically just access the clock driver not needing to go through
> >> common PRM code. This would be wrong in the case of control module for
> >> example.
> >>
> >> Signed-off-by: Tero Kristo <t-kristo@ti.com>
> > 
> > This patch moves things in the wrong direction (ie, rather than keeping 
> > the PRM register accesses in the PRM code, it moves PRM register accesses 
> > into the clock code).  But I see that a subsequent patch in this series 
> > moves them back.  So this change is temporary and that seems reasonable to 
> > me.
> > 
> > However, as long as the clock code wants to do low-level register accesses 
> > to PRM/CM/SCM registers, there needs to be some way to keep register 
> > updates originating from the clock code from racing with register updates 
> > coming from other code (e.g. non-clock-related PRM/CM/SCM accesses). So 
> > I've changed this patch to use regmap (as below), and the followup patch 
> > later in the series will be changed too.  Seems to work so far but let's 
> > see how things go with the rest of the series.
> 
> I'm not sure if I miss something, but regmap_write does not protect from
> problems if there are multiple users for the same registers. You need to
> use regmap_update_bits() to get a protected read/write sequence, in
> which you can change only the bits that you want to change.

To me it seems that issue can be fixed by making all the code use regmap.
AFAIK that should work for the legacy code too.

Regards,

Tony

Re: [PATCH 01/23] ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

[Tomi Valkeinen]

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On 26/01/15 17:49, Tony Lindgren wrote:

>> I'm not sure if I miss something, but regmap_write does not protect from
>> problems if there are multiple users for the same registers. You need to
>> use regmap_update_bits() to get a protected read/write sequence, in
>> which you can change only the bits that you want to change.
> 
> To me it seems that issue can be fixed by making all the code use regmap.
> AFAIK that should work for the legacy code too.

Even if everybody uses regmap, doing

v = regmap_read()
modify v
regmap_write(v)

is racy. regmap_update_bits() has to be used to protect the read/write
sequence. Which may be somewhat challenging at times with some strange
registers, the like Roger Q encountered recently related to CAN.

 Tomi



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[PATCH 01/23] ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

[Tomi Valkeinen]

On 26/01/15 17:49, Tony Lindgren wrote:

>> I'm not sure if I miss something, but regmap_write does not protect from
>> problems if there are multiple users for the same registers. You need to
>> use regmap_update_bits() to get a protected read/write sequence, in
>> which you can change only the bits that you want to change.
> 
> To me it seems that issue can be fixed by making all the code use regmap.
> AFAIK that should work for the legacy code too.

Even if everybody uses regmap, doing

v = regmap_read()
modify v
regmap_write(v)

is racy. regmap_update_bits() has to be used to protect the read/write
sequence. Which may be somewhat challenging at times with some strange
registers, the like Roger Q encountered recently related to CAN.

 Tomi


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Re: [PATCH 01/23] ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

[Tony Lindgren]

* Tomi Valkeinen <tomi.valkeinen@ti.com> [150127 03:37]:
> On 26/01/15 17:49, Tony Lindgren wrote:
> 
> >> I'm not sure if I miss something, but regmap_write does not protect from
> >> problems if there are multiple users for the same registers. You need to
> >> use regmap_update_bits() to get a protected read/write sequence, in
> >> which you can change only the bits that you want to change.
> > 
> > To me it seems that issue can be fixed by making all the code use regmap.
> > AFAIK that should work for the legacy code too.
> 
> Even if everybody uses regmap, doing
> 
> v = regmap_read()
> modify v
> regmap_write(v)
> 
> is racy. regmap_update_bits() has to be used to protect the read/write
> sequence. Which may be somewhat challenging at times with some strange
> registers, the like Roger Q encountered recently related to CAN.

Yeah that's a good point.

Regards,

Tony

[PATCH 01/23] ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

[Tony Lindgren]

* Tomi Valkeinen <tomi.valkeinen@ti.com> [150127 03:37]:
> On 26/01/15 17:49, Tony Lindgren wrote:
> 
> >> I'm not sure if I miss something, but regmap_write does not protect from
> >> problems if there are multiple users for the same registers. You need to
> >> use regmap_update_bits() to get a protected read/write sequence, in
> >> which you can change only the bits that you want to change.
> > 
> > To me it seems that issue can be fixed by making all the code use regmap.
> > AFAIK that should work for the legacy code too.
> 
> Even if everybody uses regmap, doing
> 
> v = regmap_read()
> modify v
> regmap_write(v)
> 
> is racy. regmap_update_bits() has to be used to protect the read/write
> sequence. Which may be somewhat challenging at times with some strange
> registers, the like Roger Q encountered recently related to CAN.

Yeah that's a good point.

Regards,

Tony

Re: [PATCH 01/23] ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

[Tero Kristo]

On 01/27/2015 06:50 PM, Tony Lindgren wrote:
> * Tomi Valkeinen <tomi.valkeinen@ti.com> [150127 03:37]:
>> On 26/01/15 17:49, Tony Lindgren wrote:
>>
>>>> I'm not sure if I miss something, but regmap_write does not protect from
>>>> problems if there are multiple users for the same registers. You need to
>>>> use regmap_update_bits() to get a protected read/write sequence, in
>>>> which you can change only the bits that you want to change.
>>>
>>> To me it seems that issue can be fixed by making all the code use regmap.
>>> AFAIK that should work for the legacy code too.
>>
>> Even if everybody uses regmap, doing
>>
>> v = regmap_read()
>> modify v
>> regmap_write(v)
>>
>> is racy. regmap_update_bits() has to be used to protect the read/write
>> sequence. Which may be somewhat challenging at times with some strange
>> registers, the like Roger Q encountered recently related to CAN.
>
> Yeah that's a good point.
>
> Regards,
>
> Tony
>

I have a v2 of this series ready now, which also moves control module 
completely to use syscon for register accesses. The move to regmap is 
done at later point though, not in this patch as Paul proposed, as the 
changes to the rest of the series were not posted.

The race handling needs to be done on driver level to use 
regmap_update_bits, my take on this is that we can post separate patches 
against the individual drivers, once the regmap/syscon conversion has 
been done. Mostly, the drivers do not touch same register anyway, so 
getting any conflicts should be pretty rare. Moreover, this set does not 
do anything for this anyway, if there are currently races with some 
users of control module, these will be there still.

-Tero

[PATCH 01/23] ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

[Tero Kristo]

On 01/27/2015 06:50 PM, Tony Lindgren wrote:
> * Tomi Valkeinen <tomi.valkeinen@ti.com> [150127 03:37]:
>> On 26/01/15 17:49, Tony Lindgren wrote:
>>
>>>> I'm not sure if I miss something, but regmap_write does not protect from
>>>> problems if there are multiple users for the same registers. You need to
>>>> use regmap_update_bits() to get a protected read/write sequence, in
>>>> which you can change only the bits that you want to change.
>>>
>>> To me it seems that issue can be fixed by making all the code use regmap.
>>> AFAIK that should work for the legacy code too.
>>
>> Even if everybody uses regmap, doing
>>
>> v = regmap_read()
>> modify v
>> regmap_write(v)
>>
>> is racy. regmap_update_bits() has to be used to protect the read/write
>> sequence. Which may be somewhat challenging at times with some strange
>> registers, the like Roger Q encountered recently related to CAN.
>
> Yeah that's a good point.
>
> Regards,
>
> Tony
>

I have a v2 of this series ready now, which also moves control module 
completely to use syscon for register accesses. The move to regmap is 
done at later point though, not in this patch as Paul proposed, as the 
changes to the rest of the series were not posted.

The race handling needs to be done on driver level to use 
regmap_update_bits, my take on this is that we can post separate patches 
against the individual drivers, once the regmap/syscon conversion has 
been done. Mostly, the drivers do not touch same register anyway, so 
getting any conflicts should be pretty rare. Moreover, this set does not 
do anything for this anyway, if there are currently races with some 
users of control module, these will be there still.

-Tero

Re: [PATCH 13/23] ARM: OMAP2+: CM: determine CM base address from device tree

[Tero Kristo]

On 01/24/2015 09:39 PM, Paul Walmsley wrote:
> Hi Tero
>
> On Thu, 27 Nov 2014, Tero Kristo wrote:
>
>> There is no need to provide the CM base address through a low-level API
>> from the low-level IO init, as this information is available through DT.
>> Re-routed the parsing function to be called from the CM drivers also to
>> simplify the implementation under io.c.
>>
>> Signed-off-by: Tero Kristo <t-kristo@ti.com>
>
> This one breaks boot on OMAP2430 (and presumably all other OMAP2xxx).
> Adding something like this seems to get it working.

Yeah, you are right. This patch also broke am33xx boot, I will fix this 
in v2.

-Tero

>
>
> - Paul
>
> ---
>   arch/arm/mach-omap2/cm_common.c | 5 +++++
>   1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
> index c2d7c7b3002c..1770364f0499 100644
> --- a/arch/arm/mach-omap2/cm_common.c
> +++ b/arch/arm/mach-omap2/cm_common.c
> @@ -234,7 +234,12 @@ static struct omap_prcm_init_data omap3_cm_data = {
>   	.offset = -OMAP3430_IVA2_MOD,
>   };
>
> +static struct omap_prcm_init_data omap2_prcm_data = {
> +	.index = CLK_MEMMAP_INDEX_CM1,
> +};
> +
>   static struct of_device_id omap_cm_dt_match_table[] = {
> +	{ .compatible = "ti,omap2-prcm", .data = &omap2_prcm_data },
>   	{ .compatible = "ti,omap3-cm", .data = &omap3_cm_data },
>   	{ .compatible = "ti,omap4-cm1", .data = &cm_data },
>   	{ .compatible = "ti,omap4-cm2", .data = &cm2_data },
>

[PATCH 13/23] ARM: OMAP2+: CM: determine CM base address from device tree

[Tero Kristo]

On 01/24/2015 09:39 PM, Paul Walmsley wrote:
> Hi Tero
>
> On Thu, 27 Nov 2014, Tero Kristo wrote:
>
>> There is no need to provide the CM base address through a low-level API
>> from the low-level IO init, as this information is available through DT.
>> Re-routed the parsing function to be called from the CM drivers also to
>> simplify the implementation under io.c.
>>
>> Signed-off-by: Tero Kristo <t-kristo@ti.com>
>
> This one breaks boot on OMAP2430 (and presumably all other OMAP2xxx).
> Adding something like this seems to get it working.

Yeah, you are right. This patch also broke am33xx boot, I will fix this 
in v2.

-Tero

>
>
> - Paul
>
> ---
>   arch/arm/mach-omap2/cm_common.c | 5 +++++
>   1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
> index c2d7c7b3002c..1770364f0499 100644
> --- a/arch/arm/mach-omap2/cm_common.c
> +++ b/arch/arm/mach-omap2/cm_common.c
> @@ -234,7 +234,12 @@ static struct omap_prcm_init_data omap3_cm_data = {
>   	.offset = -OMAP3430_IVA2_MOD,
>   };
>
> +static struct omap_prcm_init_data omap2_prcm_data = {
> +	.index = CLK_MEMMAP_INDEX_CM1,
> +};
> +
>   static struct of_device_id omap_cm_dt_match_table[] = {
> +	{ .compatible = "ti,omap2-prcm", .data = &omap2_prcm_data },
>   	{ .compatible = "ti,omap3-cm", .data = &omap3_cm_data },
>   	{ .compatible = "ti,omap4-cm1", .data = &cm_data },
>   	{ .compatible = "ti,omap4-cm2", .data = &cm2_data },
>