[rtc-linux] [PATCH v3 0/7] rtc: Reuse rtc-sh driver to support RZ/A1

[rtc-linux] [PATCH v3 0/7] rtc: Reuse rtc-sh driver to support RZ/A1

[Chris Brandt]

Basically, the same RTC that was used in SuperH devices is now used in
RZ/A1 devices. Therefore with some slight changes, that driver can be
reused.

Additionally, since ARM architectures require Device Tree configurations,
device tree support has been added.

This was tested on RZ/A1H RSK board. Once the correct time was programmed
into the RTC running off a 32.768kHz crystal, you can retain an accurate
system clock between reboots (hard and soft) until power is finally removed
from the board (there is no batter backup on the RSK board).

v3:
* remove 'power-domains' from example in documentation
* update commit message subject and body of dt-bindings

v2:
* removed HAVE_CLK from Kconfig
* when using DT, look for "fck" instead of "rtc0"
* changed (res == NULL) to (!res)
* added Reviewed-by for rtc-sh.c
* added interrupt-names and clock-names
* clocks now include counting sources
* added clock-names "fck", "rtc_x1", "rtc_x3", "extal"
* changed 'is a RTC' to 'is an RTC' in commit message
* changed "rtc0" to "rtc"
* Added clock nodes for RTC_X1 and RTC_X3 pin inputs
* each commit now has a log message


Chris Brandt (7):
  rtc: rtc-sh: add support for rza series
  dt-bindings: rtc: document the rtc-sh bindings
  ARM: dts: r7s72100: add rtc clock to device tree
  ARM: dts: r7s72100: add RTC_X clock inputs to device tree
  ARM: dts: r7s72100: add rtc to device tree
  ARM: dts: rskrza1: set rtc_x1 clock value
  ARM: dts: rskrza1: add rtc DT support

 Documentation/devicetree/bindings/rtc/rtc-sh.txt | 28 ++++++++++++++++++
 arch/arm/boot/dts/r7s72100-rskrza1.dts           |  8 +++++
 arch/arm/boot/dts/r7s72100.dtsi                  | 37 ++++++++++++++++++++++++
 drivers/rtc/Kconfig                              |  4 +--
 drivers/rtc/rtc-sh.c                             | 33 +++++++++++++++++----
 include/dt-bindings/clock/r7s72100-clock.h       |  3 ++
 6 files changed, 106 insertions(+), 7 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/rtc/rtc-sh.txt

-- 
2.11.0


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[PATCH v3 0/7] rtc: Reuse rtc-sh driver to support RZ/A1

[Chris Brandt]

Basically, the same RTC that was used in SuperH devices is now used in
RZ/A1 devices. Therefore with some slight changes, that driver can be
reused.

Additionally, since ARM architectures require Device Tree configurations,
device tree support has been added.

This was tested on RZ/A1H RSK board. Once the correct time was programmed
into the RTC running off a 32.768kHz crystal, you can retain an accurate
system clock between reboots (hard and soft) until power is finally removed
from the board (there is no batter backup on the RSK board).

v3:
* remove 'power-domains' from example in documentation
* update commit message subject and body of dt-bindings

v2:
* removed HAVE_CLK from Kconfig
* when using DT, look for "fck" instead of "rtc0"
* changed (res == NULL) to (!res)
* added Reviewed-by for rtc-sh.c
* added interrupt-names and clock-names
* clocks now include counting sources
* added clock-names "fck", "rtc_x1", "rtc_x3", "extal"
* changed 'is a RTC' to 'is an RTC' in commit message
* changed "rtc0" to "rtc"
* Added clock nodes for RTC_X1 and RTC_X3 pin inputs
* each commit now has a log message


Chris Brandt (7):
  rtc: rtc-sh: add support for rza series
  dt-bindings: rtc: document the rtc-sh bindings
  ARM: dts: r7s72100: add rtc clock to device tree
  ARM: dts: r7s72100: add RTC_X clock inputs to device tree
  ARM: dts: r7s72100: add rtc to device tree
  ARM: dts: rskrza1: set rtc_x1 clock value
  ARM: dts: rskrza1: add rtc DT support

 Documentation/devicetree/bindings/rtc/rtc-sh.txt | 28 ++++++++++++++++++
 arch/arm/boot/dts/r7s72100-rskrza1.dts           |  8 +++++
 arch/arm/boot/dts/r7s72100.dtsi                  | 37 ++++++++++++++++++++++++
 drivers/rtc/Kconfig                              |  4 +--
 drivers/rtc/rtc-sh.c                             | 33 +++++++++++++++++----
 include/dt-bindings/clock/r7s72100-clock.h       |  3 ++
 6 files changed, 106 insertions(+), 7 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/rtc/rtc-sh.txt

-- 
2.11.0


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[PATCH v3 0/7] rtc: Reuse rtc-sh driver to support RZ/A1

[Chris Brandt]

Basically, the same RTC that was used in SuperH devices is now used in
RZ/A1 devices. Therefore with some slight changes, that driver can be
reused.

Additionally, since ARM architectures require Device Tree configurations,
device tree support has been added.

This was tested on RZ/A1H RSK board. Once the correct time was programmed
into the RTC running off a 32.768kHz crystal, you can retain an accurate
system clock between reboots (hard and soft) until power is finally removed
from the board (there is no batter backup on the RSK board).

v3:
* remove 'power-domains' from example in documentation
* update commit message subject and body of dt-bindings

v2:
* removed HAVE_CLK from Kconfig
* when using DT, look for "fck" instead of "rtc0"
* changed (res == NULL) to (!res)
* added Reviewed-by for rtc-sh.c
* added interrupt-names and clock-names
* clocks now include counting sources
* added clock-names "fck", "rtc_x1", "rtc_x3", "extal"
* changed 'is a RTC' to 'is an RTC' in commit message
* changed "rtc0" to "rtc"
* Added clock nodes for RTC_X1 and RTC_X3 pin inputs
* each commit now has a log message


Chris Brandt (7):
  rtc: rtc-sh: add support for rza series
  dt-bindings: rtc: document the rtc-sh bindings
  ARM: dts: r7s72100: add rtc clock to device tree
  ARM: dts: r7s72100: add RTC_X clock inputs to device tree
  ARM: dts: r7s72100: add rtc to device tree
  ARM: dts: rskrza1: set rtc_x1 clock value
  ARM: dts: rskrza1: add rtc DT support

 Documentation/devicetree/bindings/rtc/rtc-sh.txt | 28 ++++++++++++++++++
 arch/arm/boot/dts/r7s72100-rskrza1.dts           |  8 +++++
 arch/arm/boot/dts/r7s72100.dtsi                  | 37 ++++++++++++++++++++++++
 drivers/rtc/Kconfig                              |  4 +--
 drivers/rtc/rtc-sh.c                             | 33 +++++++++++++++++----
 include/dt-bindings/clock/r7s72100-clock.h       |  3 ++
 6 files changed, 106 insertions(+), 7 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/rtc/rtc-sh.txt

-- 
2.11.0

[rtc-linux] [PATCH v3 1/7] rtc: rtc-sh: add support for rza series

[Chris Brandt]

This same RTC is used in RZ/A series MPUs, therefore with some slight
changes, this driver can be reused. Additionally, since ARM architectures
require Device Tree configurations, device tree support has been added.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v2:
* removed HAVE_CLK from Kconfig
* when using DT, look for "fck" instead of "rtc0"
* changed (res == NULL) to (!res)
* added Reviewed-by
---
 drivers/rtc/Kconfig  |  4 ++--
 drivers/rtc/rtc-sh.c | 33 ++++++++++++++++++++++++++++-----
 2 files changed, 30 insertions(+), 7 deletions(-)

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index ee1b0e9dde79..c2d1f0ed47a1 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -1303,10 +1303,10 @@ config RTC_DRV_SA1100
 
 config RTC_DRV_SH
 	tristate "SuperH On-Chip RTC"
-	depends on SUPERH && HAVE_CLK
+	depends on SUPERH || ARCH_RENESAS
 	help
 	  Say Y here to enable support for the on-chip RTC found in
-	  most SuperH processors.
+	  most SuperH processors. This RTC is also found in RZ/A SoCs.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called rtc-sh.
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index c626e43a9cbb..00b396e96cbe 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -27,7 +27,15 @@
 #include <linux/log2.h>
 #include <linux/clk.h>
 #include <linux/slab.h>
+#ifdef CONFIG_SUPERH
 #include <asm/rtc.h>
+#else
+/* Default values for RZ/A RTC */
+#define rtc_reg_size		sizeof(u16)
+#define RTC_BIT_INVERTED        0	/* no chip bugs */
+#define RTC_CAP_4_DIGIT_YEAR    (1 << 0)
+#define RTC_DEF_CAPABILITIES    RTC_CAP_4_DIGIT_YEAR
+#endif
 
 #define DRV_NAME	"sh-rtc"
 
@@ -570,6 +578,8 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
 	rtc->alarm_irq = platform_get_irq(pdev, 2);
 
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!res)
+		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (unlikely(res == NULL)) {
 		dev_err(&pdev->dev, "No IO resource\n");
 		return -ENOENT;
@@ -587,12 +597,15 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
 	if (unlikely(!rtc->regbase))
 		return -EINVAL;
 
-	clk_id = pdev->id;
-	/* With a single device, the clock id is still "rtc0" */
-	if (clk_id < 0)
-		clk_id = 0;
+	if (!pdev->dev.of_node) {
+		clk_id = pdev->id;
+		/* With a single device, the clock id is still "rtc0" */
+		if (clk_id < 0)
+			clk_id = 0;
 
-	snprintf(clk_name, sizeof(clk_name), "rtc%d", clk_id);
+		snprintf(clk_name, sizeof(clk_name), "rtc%d", clk_id);
+	} else
+		snprintf(clk_name, sizeof(clk_name), "fck");
 
 	rtc->clk = devm_clk_get(&pdev->dev, clk_name);
 	if (IS_ERR(rtc->clk)) {
@@ -608,6 +621,8 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
 	clk_enable(rtc->clk);
 
 	rtc->capabilities = RTC_DEF_CAPABILITIES;
+
+#ifdef CONFIG_SUPERH
 	if (dev_get_platdata(&pdev->dev)) {
 		struct sh_rtc_platform_info *pinfo =
 			dev_get_platdata(&pdev->dev);
@@ -618,6 +633,7 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
 		 */
 		rtc->capabilities |= pinfo->capabilities;
 	}
+#endif
 
 	if (rtc->carry_irq <= 0) {
 		/* register shared periodic/carry/alarm irq */
@@ -738,10 +754,17 @@ static int sh_rtc_resume(struct device *dev)
 
 static SIMPLE_DEV_PM_OPS(sh_rtc_pm_ops, sh_rtc_suspend, sh_rtc_resume);
 
+static const struct of_device_id sh_rtc_of_match[] = {
+	{ .compatible = "renesas,sh-rtc", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, sh_rtc_of_match);
+
 static struct platform_driver sh_rtc_platform_driver = {
 	.driver		= {
 		.name	= DRV_NAME,
 		.pm	= &sh_rtc_pm_ops,
+		.of_match_table = sh_rtc_of_match,
 	},
 	.remove		= __exit_p(sh_rtc_remove),
 };
-- 
2.11.0


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[PATCH v3 1/7] rtc: rtc-sh: add support for rza series

[Chris Brandt]

This same RTC is used in RZ/A series MPUs, therefore with some slight
changes, this driver can be reused. Additionally, since ARM architectures
require Device Tree configurations, device tree support has been added.

Signed-off-by: Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
---
v2:
* removed HAVE_CLK from Kconfig
* when using DT, look for "fck" instead of "rtc0"
* changed (res == NULL) to (!res)
* added Reviewed-by
---
 drivers/rtc/Kconfig  |  4 ++--
 drivers/rtc/rtc-sh.c | 33 ++++++++++++++++++++++++++++-----
 2 files changed, 30 insertions(+), 7 deletions(-)

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index ee1b0e9dde79..c2d1f0ed47a1 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -1303,10 +1303,10 @@ config RTC_DRV_SA1100
 
 config RTC_DRV_SH
 	tristate "SuperH On-Chip RTC"
-	depends on SUPERH && HAVE_CLK
+	depends on SUPERH || ARCH_RENESAS
 	help
 	  Say Y here to enable support for the on-chip RTC found in
-	  most SuperH processors.
+	  most SuperH processors. This RTC is also found in RZ/A SoCs.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called rtc-sh.
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index c626e43a9cbb..00b396e96cbe 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -27,7 +27,15 @@
 #include <linux/log2.h>
 #include <linux/clk.h>
 #include <linux/slab.h>
+#ifdef CONFIG_SUPERH
 #include <asm/rtc.h>
+#else
+/* Default values for RZ/A RTC */
+#define rtc_reg_size		sizeof(u16)
+#define RTC_BIT_INVERTED        0	/* no chip bugs */
+#define RTC_CAP_4_DIGIT_YEAR    (1 << 0)
+#define RTC_DEF_CAPABILITIES    RTC_CAP_4_DIGIT_YEAR
+#endif
 
 #define DRV_NAME	"sh-rtc"
 
@@ -570,6 +578,8 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
 	rtc->alarm_irq = platform_get_irq(pdev, 2);
 
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!res)
+		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (unlikely(res == NULL)) {
 		dev_err(&pdev->dev, "No IO resource\n");
 		return -ENOENT;
@@ -587,12 +597,15 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
 	if (unlikely(!rtc->regbase))
 		return -EINVAL;
 
-	clk_id = pdev->id;
-	/* With a single device, the clock id is still "rtc0" */
-	if (clk_id < 0)
-		clk_id = 0;
+	if (!pdev->dev.of_node) {
+		clk_id = pdev->id;
+		/* With a single device, the clock id is still "rtc0" */
+		if (clk_id < 0)
+			clk_id = 0;
 
-	snprintf(clk_name, sizeof(clk_name), "rtc%d", clk_id);
+		snprintf(clk_name, sizeof(clk_name), "rtc%d", clk_id);
+	} else
+		snprintf(clk_name, sizeof(clk_name), "fck");
 
 	rtc->clk = devm_clk_get(&pdev->dev, clk_name);
 	if (IS_ERR(rtc->clk)) {
@@ -608,6 +621,8 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
 	clk_enable(rtc->clk);
 
 	rtc->capabilities = RTC_DEF_CAPABILITIES;
+
+#ifdef CONFIG_SUPERH
 	if (dev_get_platdata(&pdev->dev)) {
 		struct sh_rtc_platform_info *pinfo =
 			dev_get_platdata(&pdev->dev);
@@ -618,6 +633,7 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
 		 */
 		rtc->capabilities |= pinfo->capabilities;
 	}
+#endif
 
 	if (rtc->carry_irq <= 0) {
 		/* register shared periodic/carry/alarm irq */
@@ -738,10 +754,17 @@ static int sh_rtc_resume(struct device *dev)
 
 static SIMPLE_DEV_PM_OPS(sh_rtc_pm_ops, sh_rtc_suspend, sh_rtc_resume);
 
+static const struct of_device_id sh_rtc_of_match[] = {
+	{ .compatible = "renesas,sh-rtc", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, sh_rtc_of_match);
+
 static struct platform_driver sh_rtc_platform_driver = {
 	.driver		= {
 		.name	= DRV_NAME,
 		.pm	= &sh_rtc_pm_ops,
+		.of_match_table = sh_rtc_of_match,
 	},
 	.remove		= __exit_p(sh_rtc_remove),
 };
-- 
2.11.0


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[PATCH v3 1/7] rtc: rtc-sh: add support for rza series

[Chris Brandt]

This same RTC is used in RZ/A series MPUs, therefore with some slight
changes, this driver can be reused. Additionally, since ARM architectures
require Device Tree configurations, device tree support has been added.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v2:
* removed HAVE_CLK from Kconfig
* when using DT, look for "fck" instead of "rtc0"
* changed (res == NULL) to (!res)
* added Reviewed-by
---
 drivers/rtc/Kconfig  |  4 ++--
 drivers/rtc/rtc-sh.c | 33 ++++++++++++++++++++++++++++-----
 2 files changed, 30 insertions(+), 7 deletions(-)

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index ee1b0e9dde79..c2d1f0ed47a1 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -1303,10 +1303,10 @@ config RTC_DRV_SA1100
 
 config RTC_DRV_SH
 	tristate "SuperH On-Chip RTC"
-	depends on SUPERH && HAVE_CLK
+	depends on SUPERH || ARCH_RENESAS
 	help
 	  Say Y here to enable support for the on-chip RTC found in
-	  most SuperH processors.
+	  most SuperH processors. This RTC is also found in RZ/A SoCs.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called rtc-sh.
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index c626e43a9cbb..00b396e96cbe 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -27,7 +27,15 @@
 #include <linux/log2.h>
 #include <linux/clk.h>
 #include <linux/slab.h>
+#ifdef CONFIG_SUPERH
 #include <asm/rtc.h>
+#else
+/* Default values for RZ/A RTC */
+#define rtc_reg_size		sizeof(u16)
+#define RTC_BIT_INVERTED        0	/* no chip bugs */
+#define RTC_CAP_4_DIGIT_YEAR    (1 << 0)
+#define RTC_DEF_CAPABILITIES    RTC_CAP_4_DIGIT_YEAR
+#endif
 
 #define DRV_NAME	"sh-rtc"
 
@@ -570,6 +578,8 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
 	rtc->alarm_irq = platform_get_irq(pdev, 2);
 
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!res)
+		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (unlikely(res == NULL)) {
 		dev_err(&pdev->dev, "No IO resource\n");
 		return -ENOENT;
@@ -587,12 +597,15 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
 	if (unlikely(!rtc->regbase))
 		return -EINVAL;
 
-	clk_id = pdev->id;
-	/* With a single device, the clock id is still "rtc0" */
-	if (clk_id < 0)
-		clk_id = 0;
+	if (!pdev->dev.of_node) {
+		clk_id = pdev->id;
+		/* With a single device, the clock id is still "rtc0" */
+		if (clk_id < 0)
+			clk_id = 0;
 
-	snprintf(clk_name, sizeof(clk_name), "rtc%d", clk_id);
+		snprintf(clk_name, sizeof(clk_name), "rtc%d", clk_id);
+	} else
+		snprintf(clk_name, sizeof(clk_name), "fck");
 
 	rtc->clk = devm_clk_get(&pdev->dev, clk_name);
 	if (IS_ERR(rtc->clk)) {
@@ -608,6 +621,8 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
 	clk_enable(rtc->clk);
 
 	rtc->capabilities = RTC_DEF_CAPABILITIES;
+
+#ifdef CONFIG_SUPERH
 	if (dev_get_platdata(&pdev->dev)) {
 		struct sh_rtc_platform_info *pinfo =
 			dev_get_platdata(&pdev->dev);
@@ -618,6 +633,7 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
 		 */
 		rtc->capabilities |= pinfo->capabilities;
 	}
+#endif
 
 	if (rtc->carry_irq <= 0) {
 		/* register shared periodic/carry/alarm irq */
@@ -738,10 +754,17 @@ static int sh_rtc_resume(struct device *dev)
 
 static SIMPLE_DEV_PM_OPS(sh_rtc_pm_ops, sh_rtc_suspend, sh_rtc_resume);
 
+static const struct of_device_id sh_rtc_of_match[] = {
+	{ .compatible = "renesas,sh-rtc", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, sh_rtc_of_match);
+
 static struct platform_driver sh_rtc_platform_driver = {
 	.driver		= {
 		.name	= DRV_NAME,
 		.pm	= &sh_rtc_pm_ops,
+		.of_match_table = sh_rtc_of_match,
 	},
 	.remove		= __exit_p(sh_rtc_remove),
 };
-- 
2.11.0

[rtc-linux] [PATCH v3 2/7] dt-bindings: rtc: document the rtc-sh bindings

[Chris Brandt]

Add the binding documentation for rtc-sh which is an RTC for
SuperH and RZ/A SoCs.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
---
v3:
* remove 'power-domains' from example
* update commit message subject and body
v2:
* added interrupt-names and clock-names
* clocks now include counting sources
* changed 'is a RTC' to 'is an RTC' in commit message
---
 Documentation/devicetree/bindings/rtc/rtc-sh.txt | 28 ++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rtc/rtc-sh.txt

diff --git a/Documentation/devicetree/bindings/rtc/rtc-sh.txt b/Documentation/devicetree/bindings/rtc/rtc-sh.txt
new file mode 100644
index 000000000000..7676c7d28874
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/rtc-sh.txt
@@ -0,0 +1,28 @@
+* Real Time Clock for Renesas SH and ARM SoCs
+
+Required properties:
+- compatible: Should be "renesas,r7s72100-rtc" and "renesas,sh-rtc" as a
+  fallback.
+- reg: physical base address and length of memory mapped region.
+- interrupts: 3 interrupts for alarm, period, and carry.
+- interrupt-names: The interrupts should be labeled as "alarm", "period", and
+  "carry".
+- clocks: The functional clock source for the RTC controller must be listed
+  first (if exists). Additionally, potential clock counting sources are to be
+  listed.
+- clock-names: The functional clock must be labeled as "fck". Other clocks
+  may be named in accordance to the SoC hardware manuals.
+
+
+Example:
+rtc: rtc@fcff1000 {
+	compatible = "renesas,r7s72100-rtc", "renesas,sh-rtc";
+	reg = <0xfcff1000 0x2e>;
+	interrupts = <GIC_SPI 276 IRQ_TYPE_EDGE_RISING
+		      GIC_SPI 277 IRQ_TYPE_EDGE_RISING
+		      GIC_SPI 278 IRQ_TYPE_EDGE_RISING>;
+	interrupt-names = "alarm", "period", "carry";
+	clocks = <&mstp6_clks R7S72100_CLK_RTC>, <&rtc_x1_clk>,
+		 <&rtc_x3_clk>, <&extal_clk>;
+	clock-names = "fck", "rtc_x1", "rtc_x3", "extal";
+};
-- 
2.11.0


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[PATCH v3 2/7] dt-bindings: rtc: document the rtc-sh bindings

[Chris Brandt]

Add the binding documentation for rtc-sh which is an RTC for
SuperH and RZ/A SoCs.

Signed-off-by: Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
---
v3:
* remove 'power-domains' from example
* update commit message subject and body
v2:
* added interrupt-names and clock-names
* clocks now include counting sources
* changed 'is a RTC' to 'is an RTC' in commit message
---
 Documentation/devicetree/bindings/rtc/rtc-sh.txt | 28 ++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rtc/rtc-sh.txt

diff --git a/Documentation/devicetree/bindings/rtc/rtc-sh.txt b/Documentation/devicetree/bindings/rtc/rtc-sh.txt
new file mode 100644
index 000000000000..7676c7d28874
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/rtc-sh.txt
@@ -0,0 +1,28 @@
+* Real Time Clock for Renesas SH and ARM SoCs
+
+Required properties:
+- compatible: Should be "renesas,r7s72100-rtc" and "renesas,sh-rtc" as a
+  fallback.
+- reg: physical base address and length of memory mapped region.
+- interrupts: 3 interrupts for alarm, period, and carry.
+- interrupt-names: The interrupts should be labeled as "alarm", "period", and
+  "carry".
+- clocks: The functional clock source for the RTC controller must be listed
+  first (if exists). Additionally, potential clock counting sources are to be
+  listed.
+- clock-names: The functional clock must be labeled as "fck". Other clocks
+  may be named in accordance to the SoC hardware manuals.
+
+
+Example:
+rtc: rtc@fcff1000 {
+	compatible = "renesas,r7s72100-rtc", "renesas,sh-rtc";
+	reg = <0xfcff1000 0x2e>;
+	interrupts = <GIC_SPI 276 IRQ_TYPE_EDGE_RISING
+		      GIC_SPI 277 IRQ_TYPE_EDGE_RISING
+		      GIC_SPI 278 IRQ_TYPE_EDGE_RISING>;
+	interrupt-names = "alarm", "period", "carry";
+	clocks = <&mstp6_clks R7S72100_CLK_RTC>, <&rtc_x1_clk>,
+		 <&rtc_x3_clk>, <&extal_clk>;
+	clock-names = "fck", "rtc_x1", "rtc_x3", "extal";
+};
-- 
2.11.0


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[PATCH v3 2/7] dt-bindings: rtc: document the rtc-sh bindings

[Chris Brandt]

Add the binding documentation for rtc-sh which is an RTC for
SuperH and RZ/A SoCs.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
---
v3:
* remove 'power-domains' from example
* update commit message subject and body
v2:
* added interrupt-names and clock-names
* clocks now include counting sources
* changed 'is a RTC' to 'is an RTC' in commit message
---
 Documentation/devicetree/bindings/rtc/rtc-sh.txt | 28 ++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rtc/rtc-sh.txt

diff --git a/Documentation/devicetree/bindings/rtc/rtc-sh.txt b/Documentation/devicetree/bindings/rtc/rtc-sh.txt
new file mode 100644
index 000000000000..7676c7d28874
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/rtc-sh.txt
@@ -0,0 +1,28 @@
+* Real Time Clock for Renesas SH and ARM SoCs
+
+Required properties:
+- compatible: Should be "renesas,r7s72100-rtc" and "renesas,sh-rtc" as a
+  fallback.
+- reg: physical base address and length of memory mapped region.
+- interrupts: 3 interrupts for alarm, period, and carry.
+- interrupt-names: The interrupts should be labeled as "alarm", "period", and
+  "carry".
+- clocks: The functional clock source for the RTC controller must be listed
+  first (if exists). Additionally, potential clock counting sources are to be
+  listed.
+- clock-names: The functional clock must be labeled as "fck". Other clocks
+  may be named in accordance to the SoC hardware manuals.
+
+
+Example:
+rtc: rtc@fcff1000 {
+	compatible = "renesas,r7s72100-rtc", "renesas,sh-rtc";
+	reg = <0xfcff1000 0x2e>;
+	interrupts = <GIC_SPI 276 IRQ_TYPE_EDGE_RISING
+		      GIC_SPI 277 IRQ_TYPE_EDGE_RISING
+		      GIC_SPI 278 IRQ_TYPE_EDGE_RISING>;
+	interrupt-names = "alarm", "period", "carry";
+	clocks = <&mstp6_clks R7S72100_CLK_RTC>, <&rtc_x1_clk>,
+		 <&rtc_x3_clk>, <&extal_clk>;
+	clock-names = "fck", "rtc_x1", "rtc_x3", "extal";
+};
-- 
2.11.0

[rtc-linux] [PATCH v3 3/7] ARM: dts: r7s72100: add rtc clock to device tree

[Chris Brandt]

Add the realtime clock functional clock source.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v2:
* changed "rtc0" to "rtc"
* added Reviewed-by
---
 arch/arm/boot/dts/r7s72100.dtsi            | 9 +++++++++
 include/dt-bindings/clock/r7s72100-clock.h | 3 +++
 2 files changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/r7s72100.dtsi b/arch/arm/boot/dts/r7s72100.dtsi
index 34994afa9d15..6a1448be4e10 100644
--- a/arch/arm/boot/dts/r7s72100.dtsi
+++ b/arch/arm/boot/dts/r7s72100.dtsi
@@ -117,6 +117,15 @@
 			clock-output-names = "ostm0", "ostm1";
 		};
 
+		mstp6_clks: mstp6_clks@fcfe042c {
+			#clock-cells = <1>;
+			compatible = "renesas,r7s72100-mstp-clocks", "renesas,cpg-mstp-clocks";
+			reg = <0xfcfe042c 4>;
+			clocks = <&p0_clk>;
+			clock-indices = <R7S72100_CLK_RTC>;
+			clock-output-names = "rtc";
+		};
+
 		mstp7_clks: mstp7_clks@fcfe0430 {
 			#clock-cells = <1>;
 			compatible = "renesas,r7s72100-mstp-clocks", "renesas,cpg-mstp-clocks";
diff --git a/include/dt-bindings/clock/r7s72100-clock.h b/include/dt-bindings/clock/r7s72100-clock.h
index cd2ed5194255..bc256d31099a 100644
--- a/include/dt-bindings/clock/r7s72100-clock.h
+++ b/include/dt-bindings/clock/r7s72100-clock.h
@@ -29,6 +29,9 @@
 #define R7S72100_CLK_OSTM0	1
 #define R7S72100_CLK_OSTM1	0
 
+/* MSTP6 */
+#define R7S72100_CLK_RTC	0
+
 /* MSTP7 */
 #define R7S72100_CLK_ETHER	4
 
-- 
2.11.0


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[PATCH v3 3/7] ARM: dts: r7s72100: add rtc clock to device tree

[Chris Brandt]

Add the realtime clock functional clock source.

Signed-off-by: Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
---
v2:
* changed "rtc0" to "rtc"
* added Reviewed-by
---
 arch/arm/boot/dts/r7s72100.dtsi            | 9 +++++++++
 include/dt-bindings/clock/r7s72100-clock.h | 3 +++
 2 files changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/r7s72100.dtsi b/arch/arm/boot/dts/r7s72100.dtsi
index 34994afa9d15..6a1448be4e10 100644
--- a/arch/arm/boot/dts/r7s72100.dtsi
+++ b/arch/arm/boot/dts/r7s72100.dtsi
@@ -117,6 +117,15 @@
 			clock-output-names = "ostm0", "ostm1";
 		};
 
+		mstp6_clks: mstp6_clks@fcfe042c {
+			#clock-cells = <1>;
+			compatible = "renesas,r7s72100-mstp-clocks", "renesas,cpg-mstp-clocks";
+			reg = <0xfcfe042c 4>;
+			clocks = <&p0_clk>;
+			clock-indices = <R7S72100_CLK_RTC>;
+			clock-output-names = "rtc";
+		};
+
 		mstp7_clks: mstp7_clks@fcfe0430 {
 			#clock-cells = <1>;
 			compatible = "renesas,r7s72100-mstp-clocks", "renesas,cpg-mstp-clocks";
diff --git a/include/dt-bindings/clock/r7s72100-clock.h b/include/dt-bindings/clock/r7s72100-clock.h
index cd2ed5194255..bc256d31099a 100644
--- a/include/dt-bindings/clock/r7s72100-clock.h
+++ b/include/dt-bindings/clock/r7s72100-clock.h
@@ -29,6 +29,9 @@
 #define R7S72100_CLK_OSTM0	1
 #define R7S72100_CLK_OSTM1	0
 
+/* MSTP6 */
+#define R7S72100_CLK_RTC	0
+
 /* MSTP7 */
 #define R7S72100_CLK_ETHER	4
 
-- 
2.11.0


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[PATCH v3 3/7] ARM: dts: r7s72100: add rtc clock to device tree

[Chris Brandt]

Add the realtime clock functional clock source.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v2:
* changed "rtc0" to "rtc"
* added Reviewed-by
---
 arch/arm/boot/dts/r7s72100.dtsi            | 9 +++++++++
 include/dt-bindings/clock/r7s72100-clock.h | 3 +++
 2 files changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/r7s72100.dtsi b/arch/arm/boot/dts/r7s72100.dtsi
index 34994afa9d15..6a1448be4e10 100644
--- a/arch/arm/boot/dts/r7s72100.dtsi
+++ b/arch/arm/boot/dts/r7s72100.dtsi
@@ -117,6 +117,15 @@
 			clock-output-names = "ostm0", "ostm1";
 		};
 
+		mstp6_clks: mstp6_clks@fcfe042c {
+			#clock-cells = <1>;
+			compatible = "renesas,r7s72100-mstp-clocks", "renesas,cpg-mstp-clocks";
+			reg = <0xfcfe042c 4>;
+			clocks = <&p0_clk>;
+			clock-indices = <R7S72100_CLK_RTC>;
+			clock-output-names = "rtc";
+		};
+
 		mstp7_clks: mstp7_clks@fcfe0430 {
 			#clock-cells = <1>;
 			compatible = "renesas,r7s72100-mstp-clocks", "renesas,cpg-mstp-clocks";
diff --git a/include/dt-bindings/clock/r7s72100-clock.h b/include/dt-bindings/clock/r7s72100-clock.h
index cd2ed5194255..bc256d31099a 100644
--- a/include/dt-bindings/clock/r7s72100-clock.h
+++ b/include/dt-bindings/clock/r7s72100-clock.h
@@ -29,6 +29,9 @@
 #define R7S72100_CLK_OSTM0	1
 #define R7S72100_CLK_OSTM1	0
 
+/* MSTP6 */
+#define R7S72100_CLK_RTC	0
+
 /* MSTP7 */
 #define R7S72100_CLK_ETHER	4
 
-- 
2.11.0

[rtc-linux] [PATCH v3 4/7] ARM: dts: r7s72100: add RTC_X clock inputs to device tree

[Chris Brandt]

Add the RTC clocks to device tree. The frequencies must be fixed values
according to the hardware manual.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
---
 arch/arm/boot/dts/r7s72100.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/r7s72100.dtsi b/arch/arm/boot/dts/r7s72100.dtsi
index 6a1448be4e10..632a6a481be8 100644
--- a/arch/arm/boot/dts/r7s72100.dtsi
+++ b/arch/arm/boot/dts/r7s72100.dtsi
@@ -51,6 +51,20 @@
 			clock-frequency = <0>;
 		};
 
+		rtc_x1_clk: rtc_x1 {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			/* If clk present, value must be set by board to 32678 */
+			clock-frequency = <0>;
+		};
+
+		rtc_x3_clk: rtc_x3 {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			/* If clk present, value must be set by board to 4000000 */
+			clock-frequency = <0>;
+		};
+
 		/* Fixed factor clocks */
 		b_clk: b {
 			#clock-cells = <0>;
-- 
2.11.0


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[PATCH v3 4/7] ARM: dts: r7s72100: add RTC_X clock inputs to device tree

[Chris Brandt]

Add the RTC clocks to device tree. The frequencies must be fixed values
according to the hardware manual.

Signed-off-by: Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
---
 arch/arm/boot/dts/r7s72100.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/r7s72100.dtsi b/arch/arm/boot/dts/r7s72100.dtsi
index 6a1448be4e10..632a6a481be8 100644
--- a/arch/arm/boot/dts/r7s72100.dtsi
+++ b/arch/arm/boot/dts/r7s72100.dtsi
@@ -51,6 +51,20 @@
 			clock-frequency = <0>;
 		};
 
+		rtc_x1_clk: rtc_x1 {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			/* If clk present, value must be set by board to 32678 */
+			clock-frequency = <0>;
+		};
+
+		rtc_x3_clk: rtc_x3 {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			/* If clk present, value must be set by board to 4000000 */
+			clock-frequency = <0>;
+		};
+
 		/* Fixed factor clocks */
 		b_clk: b {
 			#clock-cells = <0>;
-- 
2.11.0


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[PATCH v3 4/7] ARM: dts: r7s72100: add RTC_X clock inputs to device tree

[Chris Brandt]

Add the RTC clocks to device tree. The frequencies must be fixed values
according to the hardware manual.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
---
 arch/arm/boot/dts/r7s72100.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/r7s72100.dtsi b/arch/arm/boot/dts/r7s72100.dtsi
index 6a1448be4e10..632a6a481be8 100644
--- a/arch/arm/boot/dts/r7s72100.dtsi
+++ b/arch/arm/boot/dts/r7s72100.dtsi
@@ -51,6 +51,20 @@
 			clock-frequency = <0>;
 		};
 
+		rtc_x1_clk: rtc_x1 {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			/* If clk present, value must be set by board to 32678 */
+			clock-frequency = <0>;
+		};
+
+		rtc_x3_clk: rtc_x3 {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			/* If clk present, value must be set by board to 4000000 */
+			clock-frequency = <0>;
+		};
+
 		/* Fixed factor clocks */
 		b_clk: b {
 			#clock-cells = <0>;
-- 
2.11.0

[rtc-linux] [PATCH v3 5/7] ARM: dts: r7s72100: add rtc to device tree

[Chris Brandt]

Add the realtime clock device node.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v2:
* added interrupt-names
* added clock counting sources
* added clock-names "fck", "rtc_x1", "rtc_x3", "extal"
---
 arch/arm/boot/dts/r7s72100.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/r7s72100.dtsi b/arch/arm/boot/dts/r7s72100.dtsi
index 632a6a481be8..f74a8ec385b6 100644
--- a/arch/arm/boot/dts/r7s72100.dtsi
+++ b/arch/arm/boot/dts/r7s72100.dtsi
@@ -652,4 +652,18 @@
 		power-domains = <&cpg_clocks>;
 		status = "disabled";
 	};
+
+	rtc: rtc@fcff1000 {
+		compatible = "renesas,r7s72100-rtc", "renesas,sh-rtc";
+		reg = <0xfcff1000 0x2e>;
+		interrupts = <GIC_SPI 276 IRQ_TYPE_EDGE_RISING
+			      GIC_SPI 277 IRQ_TYPE_EDGE_RISING
+			      GIC_SPI 278 IRQ_TYPE_EDGE_RISING>;
+		interrupt-names = "alarm", "period", "carry";
+		clocks = <&mstp6_clks R7S72100_CLK_RTC>, <&rtc_x1_clk>,
+			 <&rtc_x3_clk>, <&extal_clk>;
+		clock-names = "fck", "rtc_x1", "rtc_x3", "extal";
+		power-domains = <&cpg_clocks>;
+		status = "disabled";
+	};
 };
-- 
2.11.0


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[PATCH v3 5/7] ARM: dts: r7s72100: add rtc to device tree

[Chris Brandt]

Add the realtime clock device node.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v2:
* added interrupt-names
* added clock counting sources
* added clock-names "fck", "rtc_x1", "rtc_x3", "extal"
---
 arch/arm/boot/dts/r7s72100.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/r7s72100.dtsi b/arch/arm/boot/dts/r7s72100.dtsi
index 632a6a481be8..f74a8ec385b6 100644
--- a/arch/arm/boot/dts/r7s72100.dtsi
+++ b/arch/arm/boot/dts/r7s72100.dtsi
@@ -652,4 +652,18 @@
 		power-domains = <&cpg_clocks>;
 		status = "disabled";
 	};
+
+	rtc: rtc@fcff1000 {
+		compatible = "renesas,r7s72100-rtc", "renesas,sh-rtc";
+		reg = <0xfcff1000 0x2e>;
+		interrupts = <GIC_SPI 276 IRQ_TYPE_EDGE_RISING
+			      GIC_SPI 277 IRQ_TYPE_EDGE_RISING
+			      GIC_SPI 278 IRQ_TYPE_EDGE_RISING>;
+		interrupt-names = "alarm", "period", "carry";
+		clocks = <&mstp6_clks R7S72100_CLK_RTC>, <&rtc_x1_clk>,
+			 <&rtc_x3_clk>, <&extal_clk>;
+		clock-names = "fck", "rtc_x1", "rtc_x3", "extal";
+		power-domains = <&cpg_clocks>;
+		status = "disabled";
+	};
 };
-- 
2.11.0

[rtc-linux] [PATCH v3 6/7] ARM: dts: rskrza1: set rtc_x1 clock value

[Chris Brandt]

Enable the 32.768 kHz RTC_X1 clock by setting the frequency value to
non-zero.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
---
 arch/arm/boot/dts/r7s72100-rskrza1.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/r7s72100-rskrza1.dts b/arch/arm/boot/dts/r7s72100-rskrza1.dts
index 02b59c5b3c53..cab5857bfb41 100644
--- a/arch/arm/boot/dts/r7s72100-rskrza1.dts
+++ b/arch/arm/boot/dts/r7s72100-rskrza1.dts
@@ -43,6 +43,10 @@
 	clock-frequency = <48000000>;
 };
 
+&rtc_x1_clk {
+	clock-frequency = <32768>;
+};
+
 &mtu2 {
 	status = "okay";
 };
-- 
2.11.0


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[PATCH v3 6/7] ARM: dts: rskrza1: set rtc_x1 clock value

[Chris Brandt]

Enable the 32.768 kHz RTC_X1 clock by setting the frequency value to
non-zero.

Signed-off-by: Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
---
 arch/arm/boot/dts/r7s72100-rskrza1.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/r7s72100-rskrza1.dts b/arch/arm/boot/dts/r7s72100-rskrza1.dts
index 02b59c5b3c53..cab5857bfb41 100644
--- a/arch/arm/boot/dts/r7s72100-rskrza1.dts
+++ b/arch/arm/boot/dts/r7s72100-rskrza1.dts
@@ -43,6 +43,10 @@
 	clock-frequency = <48000000>;
 };
 
+&rtc_x1_clk {
+	clock-frequency = <32768>;
+};
+
 &mtu2 {
 	status = "okay";
 };
-- 
2.11.0


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[PATCH v3 6/7] ARM: dts: rskrza1: set rtc_x1 clock value

[Chris Brandt]

Enable the 32.768 kHz RTC_X1 clock by setting the frequency value to
non-zero.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
---
 arch/arm/boot/dts/r7s72100-rskrza1.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/r7s72100-rskrza1.dts b/arch/arm/boot/dts/r7s72100-rskrza1.dts
index 02b59c5b3c53..cab5857bfb41 100644
--- a/arch/arm/boot/dts/r7s72100-rskrza1.dts
+++ b/arch/arm/boot/dts/r7s72100-rskrza1.dts
@@ -43,6 +43,10 @@
 	clock-frequency = <48000000>;
 };
 
+&rtc_x1_clk {
+	clock-frequency = <32768>;
+};
+
 &mtu2 {
 	status = "okay";
 };
-- 
2.11.0

[rtc-linux] [PATCH v3 7/7] ARM: dts: rskrza1: add rtc DT support

[Chris Brandt]

Enable the realtime clock.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
---
 arch/arm/boot/dts/r7s72100-rskrza1.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/r7s72100-rskrza1.dts b/arch/arm/boot/dts/r7s72100-rskrza1.dts
index cab5857bfb41..72df20a04320 100644
--- a/arch/arm/boot/dts/r7s72100-rskrza1.dts
+++ b/arch/arm/boot/dts/r7s72100-rskrza1.dts
@@ -73,6 +73,10 @@
 	status = "okay";
 };
 
+&rtc {
+	status = "okay";
+};
+
 &scif2 {
 	status = "okay";
 };
-- 
2.11.0


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[PATCH v3 7/7] ARM: dts: rskrza1: add rtc DT support

[Chris Brandt]

Enable the realtime clock.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
---
 arch/arm/boot/dts/r7s72100-rskrza1.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/r7s72100-rskrza1.dts b/arch/arm/boot/dts/r7s72100-rskrza1.dts
index cab5857bfb41..72df20a04320 100644
--- a/arch/arm/boot/dts/r7s72100-rskrza1.dts
+++ b/arch/arm/boot/dts/r7s72100-rskrza1.dts
@@ -73,6 +73,10 @@
 	status = "okay";
 };
 
+&rtc {
+	status = "okay";
+};
+
 &scif2 {
 	status = "okay";
 };
-- 
2.11.0

[rtc-linux] Re: [PATCH v3 4/7] ARM: dts: r7s72100: add RTC_X clock inputs to device tree

[Geert Uytterhoeven]

On Wed, Mar 29, 2017 at 7:30 PM, Chris Brandt <chris.brandt@renesas.com> wrote:
> Add the RTC clocks to device tree. The frequencies must be fixed values
> according to the hardware manual.
>
> Signed-off-by: Chris Brandt <chris.brandt@renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Re: [PATCH v3 4/7] ARM: dts: r7s72100: add RTC_X clock inputs to device tree

[Geert Uytterhoeven]

On Wed, Mar 29, 2017 at 7:30 PM, Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org> wrote:
> Add the RTC clocks to device tree. The frequencies must be fixed values
> according to the hardware manual.
>
> Signed-off-by: Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>

Reviewed-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Re: [PATCH v3 4/7] ARM: dts: r7s72100: add RTC_X clock inputs to device tree

[Geert Uytterhoeven]

On Wed, Mar 29, 2017 at 7:30 PM, Chris Brandt <chris.brandt@renesas.com> wrote:
> Add the RTC clocks to device tree. The frequencies must be fixed values
> according to the hardware manual.
>
> Signed-off-by: Chris Brandt <chris.brandt@renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[rtc-linux] Re: [PATCH v3 6/7] ARM: dts: rskrza1: set rtc_x1 clock value

[Geert Uytterhoeven]

On Wed, Mar 29, 2017 at 7:30 PM, Chris Brandt <chris.brandt@renesas.com> wrote:
> Enable the 32.768 kHz RTC_X1 clock by setting the frequency value to
> non-zero.
>
> Signed-off-by: Chris Brandt <chris.brandt@renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Re: [PATCH v3 6/7] ARM: dts: rskrza1: set rtc_x1 clock value

[Geert Uytterhoeven]

On Wed, Mar 29, 2017 at 7:30 PM, Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org> wrote:
> Enable the 32.768 kHz RTC_X1 clock by setting the frequency value to
> non-zero.
>
> Signed-off-by: Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>

Reviewed-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Re: [PATCH v3 6/7] ARM: dts: rskrza1: set rtc_x1 clock value

[Geert Uytterhoeven]

On Wed, Mar 29, 2017 at 7:30 PM, Chris Brandt <chris.brandt@renesas.com> wrote:
> Enable the 32.768 kHz RTC_X1 clock by setting the frequency value to
> non-zero.
>
> Signed-off-by: Chris Brandt <chris.brandt@renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[rtc-linux] Re: [PATCH v3 7/7] ARM: dts: rskrza1: add rtc DT support

[Geert Uytterhoeven]

On Wed, Mar 29, 2017 at 7:30 PM, Chris Brandt <chris.brandt@renesas.com> wrote:
> Enable the realtime clock.
>
> Signed-off-by: Chris Brandt <chris.brandt@renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Re: [PATCH v3 7/7] ARM: dts: rskrza1: add rtc DT support

[Geert Uytterhoeven]

On Wed, Mar 29, 2017 at 7:30 PM, Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org> wrote:
> Enable the realtime clock.
>
> Signed-off-by: Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>

Reviewed-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Re: [PATCH v3 7/7] ARM: dts: rskrza1: add rtc DT support

[Geert Uytterhoeven]

On Wed, Mar 29, 2017 at 7:30 PM, Chris Brandt <chris.brandt@renesas.com> wrote:
> Enable the realtime clock.
>
> Signed-off-by: Chris Brandt <chris.brandt@renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[rtc-linux] Re: [PATCH v3 2/7] dt-bindings: rtc: document the rtc-sh bindings

[Rob Herring]

On Wed, Mar 29, 2017 at 10:30:30AM -0700, Chris Brandt wrote:
> Add the binding documentation for rtc-sh which is an RTC for
> SuperH and RZ/A SoCs.
> 
> Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
> ---
> v3:
> * remove 'power-domains' from example
> * update commit message subject and body
> v2:
> * added interrupt-names and clock-names
> * clocks now include counting sources
> * changed 'is a RTC' to 'is an RTC' in commit message
> ---
>  Documentation/devicetree/bindings/rtc/rtc-sh.txt | 28 ++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/rtc/rtc-sh.txt

Acked-by: Rob Herring <robh@kernel.org> 

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Re: [PATCH v3 2/7] dt-bindings: rtc: document the rtc-sh bindings

[Rob Herring]

On Wed, Mar 29, 2017 at 10:30:30AM -0700, Chris Brandt wrote:
> Add the binding documentation for rtc-sh which is an RTC for
> SuperH and RZ/A SoCs.
> 
> Signed-off-by: Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
> ---
> v3:
> * remove 'power-domains' from example
> * update commit message subject and body
> v2:
> * added interrupt-names and clock-names
> * clocks now include counting sources
> * changed 'is a RTC' to 'is an RTC' in commit message
> ---
>  Documentation/devicetree/bindings/rtc/rtc-sh.txt | 28 ++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/rtc/rtc-sh.txt

Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> 

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Re: [PATCH v3 2/7] dt-bindings: rtc: document the rtc-sh bindings

[Rob Herring]

On Wed, Mar 29, 2017 at 10:30:30AM -0700, Chris Brandt wrote:
> Add the binding documentation for rtc-sh which is an RTC for
> SuperH and RZ/A SoCs.
> 
> Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
> ---
> v3:
> * remove 'power-domains' from example
> * update commit message subject and body
> v2:
> * added interrupt-names and clock-names
> * clocks now include counting sources
> * changed 'is a RTC' to 'is an RTC' in commit message
> ---
>  Documentation/devicetree/bindings/rtc/rtc-sh.txt | 28 ++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/rtc/rtc-sh.txt

Acked-by: Rob Herring <robh@kernel.org> 

[rtc-linux] Re: [PATCH v3 0/7] rtc: Reuse rtc-sh driver to support RZ/A1

[Alexandre Belloni]

Hi,

On 29/03/2017 at 10:30:28 -0700, Chris Brandt wrote:
> Basically, the same RTC that was used in SuperH devices is now used in
> RZ/A1 devices. Therefore with some slight changes, that driver can be
> reused.
> 
> Additionally, since ARM architectures require Device Tree configurations,
> device tree support has been added.
> 
> This was tested on RZ/A1H RSK board. Once the correct time was programmed
> into the RTC running off a 32.768kHz crystal, you can retain an accurate
> system clock between reboots (hard and soft) until power is finally removed
> from the board (there is no batter backup on the RSK board).
> 
> v3:
> * remove 'power-domains' from example in documentation
> * update commit message subject and body of dt-bindings
> 
> v2:
> * removed HAVE_CLK from Kconfig
> * when using DT, look for "fck" instead of "rtc0"
> * changed (res == NULL) to (!res)
> * added Reviewed-by for rtc-sh.c
> * added interrupt-names and clock-names
> * clocks now include counting sources
> * added clock-names "fck", "rtc_x1", "rtc_x3", "extal"
> * changed 'is a RTC' to 'is an RTC' in commit message
> * changed "rtc0" to "rtc"
> * Added clock nodes for RTC_X1 and RTC_X3 pin inputs
> * each commit now has a log message
> 
> 
> Chris Brandt (7):
>   rtc: rtc-sh: add support for rza series
>   dt-bindings: rtc: document the rtc-sh bindings

I applied those two, I'll let Simon take the device tree patches.

Thanks!

>   ARM: dts: r7s72100: add rtc clock to device tree
>   ARM: dts: r7s72100: add RTC_X clock inputs to device tree
>   ARM: dts: r7s72100: add rtc to device tree
>   ARM: dts: rskrza1: set rtc_x1 clock value
>   ARM: dts: rskrza1: add rtc DT support

-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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Re: [PATCH v3 0/7] rtc: Reuse rtc-sh driver to support RZ/A1

[Alexandre Belloni]

Hi,

On 29/03/2017 at 10:30:28 -0700, Chris Brandt wrote:
> Basically, the same RTC that was used in SuperH devices is now used in
> RZ/A1 devices. Therefore with some slight changes, that driver can be
> reused.
> 
> Additionally, since ARM architectures require Device Tree configurations,
> device tree support has been added.
> 
> This was tested on RZ/A1H RSK board. Once the correct time was programmed
> into the RTC running off a 32.768kHz crystal, you can retain an accurate
> system clock between reboots (hard and soft) until power is finally removed
> from the board (there is no batter backup on the RSK board).
> 
> v3:
> * remove 'power-domains' from example in documentation
> * update commit message subject and body of dt-bindings
> 
> v2:
> * removed HAVE_CLK from Kconfig
> * when using DT, look for "fck" instead of "rtc0"
> * changed (res == NULL) to (!res)
> * added Reviewed-by for rtc-sh.c
> * added interrupt-names and clock-names
> * clocks now include counting sources
> * added clock-names "fck", "rtc_x1", "rtc_x3", "extal"
> * changed 'is a RTC' to 'is an RTC' in commit message
> * changed "rtc0" to "rtc"
> * Added clock nodes for RTC_X1 and RTC_X3 pin inputs
> * each commit now has a log message
> 
> 
> Chris Brandt (7):
>   rtc: rtc-sh: add support for rza series
>   dt-bindings: rtc: document the rtc-sh bindings

I applied those two, I'll let Simon take the device tree patches.

Thanks!

>   ARM: dts: r7s72100: add rtc clock to device tree
>   ARM: dts: r7s72100: add RTC_X clock inputs to device tree
>   ARM: dts: r7s72100: add rtc to device tree
>   ARM: dts: rskrza1: set rtc_x1 clock value
>   ARM: dts: rskrza1: add rtc DT support

-- 
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Embedded Linux and Kernel engineering
http://free-electrons.com
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Re: [PATCH v3 0/7] rtc: Reuse rtc-sh driver to support RZ/A1

[Alexandre Belloni]

Hi,

On 29/03/2017 at 10:30:28 -0700, Chris Brandt wrote:
> Basically, the same RTC that was used in SuperH devices is now used in
> RZ/A1 devices. Therefore with some slight changes, that driver can be
> reused.
> 
> Additionally, since ARM architectures require Device Tree configurations,
> device tree support has been added.
> 
> This was tested on RZ/A1H RSK board. Once the correct time was programmed
> into the RTC running off a 32.768kHz crystal, you can retain an accurate
> system clock between reboots (hard and soft) until power is finally removed
> from the board (there is no batter backup on the RSK board).
> 
> v3:
> * remove 'power-domains' from example in documentation
> * update commit message subject and body of dt-bindings
> 
> v2:
> * removed HAVE_CLK from Kconfig
> * when using DT, look for "fck" instead of "rtc0"
> * changed (res == NULL) to (!res)
> * added Reviewed-by for rtc-sh.c
> * added interrupt-names and clock-names
> * clocks now include counting sources
> * added clock-names "fck", "rtc_x1", "rtc_x3", "extal"
> * changed 'is a RTC' to 'is an RTC' in commit message
> * changed "rtc0" to "rtc"
> * Added clock nodes for RTC_X1 and RTC_X3 pin inputs
> * each commit now has a log message
> 
> 
> Chris Brandt (7):
>   rtc: rtc-sh: add support for rza series
>   dt-bindings: rtc: document the rtc-sh bindings

I applied those two, I'll let Simon take the device tree patches.

Thanks!

>   ARM: dts: r7s72100: add rtc clock to device tree
>   ARM: dts: r7s72100: add RTC_X clock inputs to device tree
>   ARM: dts: r7s72100: add rtc to device tree
>   ARM: dts: rskrza1: set rtc_x1 clock value
>   ARM: dts: rskrza1: add rtc DT support

-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

[rtc-linux] Re: [PATCH v3 0/7] rtc: Reuse rtc-sh driver to support RZ/A1

[Simon Horman]

On Mon, Apr 03, 2017 at 06:03:37PM +0200, Alexandre Belloni wrote:
> Hi,
> 
> On 29/03/2017 at 10:30:28 -0700, Chris Brandt wrote:
> > Basically, the same RTC that was used in SuperH devices is now used in
> > RZ/A1 devices. Therefore with some slight changes, that driver can be
> > reused.
> > 
> > Additionally, since ARM architectures require Device Tree configurations,
> > device tree support has been added.
> > 
> > This was tested on RZ/A1H RSK board. Once the correct time was programmed
> > into the RTC running off a 32.768kHz crystal, you can retain an accurate
> > system clock between reboots (hard and soft) until power is finally removed
> > from the board (there is no batter backup on the RSK board).
> > 
> > v3:
> > * remove 'power-domains' from example in documentation
> > * update commit message subject and body of dt-bindings
> > 
> > v2:
> > * removed HAVE_CLK from Kconfig
> > * when using DT, look for "fck" instead of "rtc0"
> > * changed (res == NULL) to (!res)
> > * added Reviewed-by for rtc-sh.c
> > * added interrupt-names and clock-names
> > * clocks now include counting sources
> > * added clock-names "fck", "rtc_x1", "rtc_x3", "extal"
> > * changed 'is a RTC' to 'is an RTC' in commit message
> > * changed "rtc0" to "rtc"
> > * Added clock nodes for RTC_X1 and RTC_X3 pin inputs
> > * each commit now has a log message
> > 
> > 
> > Chris Brandt (7):
> >   rtc: rtc-sh: add support for rza series
> >   dt-bindings: rtc: document the rtc-sh bindings
> 
> I applied those two, I'll let Simon take the device tree patches.
> 
> Thanks!
> 
> >   ARM: dts: r7s72100: add rtc clock to device tree
> >   ARM: dts: r7s72100: add RTC_X clock inputs to device tree
> >   ARM: dts: r7s72100: add rtc to device tree
> >   ARM: dts: rskrza1: set rtc_x1 clock value
> >   ARM: dts: rskrza1: add rtc DT support

Thanks, I have queued up the dts patches.

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Re: [PATCH v3 0/7] rtc: Reuse rtc-sh driver to support RZ/A1

[Simon Horman]

On Mon, Apr 03, 2017 at 06:03:37PM +0200, Alexandre Belloni wrote:
> Hi,
> 
> On 29/03/2017 at 10:30:28 -0700, Chris Brandt wrote:
> > Basically, the same RTC that was used in SuperH devices is now used in
> > RZ/A1 devices. Therefore with some slight changes, that driver can be
> > reused.
> > 
> > Additionally, since ARM architectures require Device Tree configurations,
> > device tree support has been added.
> > 
> > This was tested on RZ/A1H RSK board. Once the correct time was programmed
> > into the RTC running off a 32.768kHz crystal, you can retain an accurate
> > system clock between reboots (hard and soft) until power is finally removed
> > from the board (there is no batter backup on the RSK board).
> > 
> > v3:
> > * remove 'power-domains' from example in documentation
> > * update commit message subject and body of dt-bindings
> > 
> > v2:
> > * removed HAVE_CLK from Kconfig
> > * when using DT, look for "fck" instead of "rtc0"
> > * changed (res == NULL) to (!res)
> > * added Reviewed-by for rtc-sh.c
> > * added interrupt-names and clock-names
> > * clocks now include counting sources
> > * added clock-names "fck", "rtc_x1", "rtc_x3", "extal"
> > * changed 'is a RTC' to 'is an RTC' in commit message
> > * changed "rtc0" to "rtc"
> > * Added clock nodes for RTC_X1 and RTC_X3 pin inputs
> > * each commit now has a log message
> > 
> > 
> > Chris Brandt (7):
> >   rtc: rtc-sh: add support for rza series
> >   dt-bindings: rtc: document the rtc-sh bindings
> 
> I applied those two, I'll let Simon take the device tree patches.
> 
> Thanks!
> 
> >   ARM: dts: r7s72100: add rtc clock to device tree
> >   ARM: dts: r7s72100: add RTC_X clock inputs to device tree
> >   ARM: dts: r7s72100: add rtc to device tree
> >   ARM: dts: rskrza1: set rtc_x1 clock value
> >   ARM: dts: rskrza1: add rtc DT support

Thanks, I have queued up the dts patches.

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Re: [PATCH v3 0/7] rtc: Reuse rtc-sh driver to support RZ/A1

[Simon Horman]

On Mon, Apr 03, 2017 at 06:03:37PM +0200, Alexandre Belloni wrote:
> Hi,
> 
> On 29/03/2017 at 10:30:28 -0700, Chris Brandt wrote:
> > Basically, the same RTC that was used in SuperH devices is now used in
> > RZ/A1 devices. Therefore with some slight changes, that driver can be
> > reused.
> > 
> > Additionally, since ARM architectures require Device Tree configurations,
> > device tree support has been added.
> > 
> > This was tested on RZ/A1H RSK board. Once the correct time was programmed
> > into the RTC running off a 32.768kHz crystal, you can retain an accurate
> > system clock between reboots (hard and soft) until power is finally removed
> > from the board (there is no batter backup on the RSK board).
> > 
> > v3:
> > * remove 'power-domains' from example in documentation
> > * update commit message subject and body of dt-bindings
> > 
> > v2:
> > * removed HAVE_CLK from Kconfig
> > * when using DT, look for "fck" instead of "rtc0"
> > * changed (res == NULL) to (!res)
> > * added Reviewed-by for rtc-sh.c
> > * added interrupt-names and clock-names
> > * clocks now include counting sources
> > * added clock-names "fck", "rtc_x1", "rtc_x3", "extal"
> > * changed 'is a RTC' to 'is an RTC' in commit message
> > * changed "rtc0" to "rtc"
> > * Added clock nodes for RTC_X1 and RTC_X3 pin inputs
> > * each commit now has a log message
> > 
> > 
> > Chris Brandt (7):
> >   rtc: rtc-sh: add support for rza series
> >   dt-bindings: rtc: document the rtc-sh bindings
> 
> I applied those two, I'll let Simon take the device tree patches.
> 
> Thanks!
> 
> >   ARM: dts: r7s72100: add rtc clock to device tree
> >   ARM: dts: r7s72100: add RTC_X clock inputs to device tree
> >   ARM: dts: r7s72100: add rtc to device tree
> >   ARM: dts: rskrza1: set rtc_x1 clock value
> >   ARM: dts: rskrza1: add rtc DT support

Thanks, I have queued up the dts patches.