* [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API
@ 2019-11-22 10:48 Abel Vesa
2019-11-22 10:48 ` [PATCH v2 01/11] clk: imx: Add correct failure handling for clk based helpers Abel Vesa
` (11 more replies)
0 siblings, 12 replies; 15+ messages in thread
From: Abel Vesa @ 2019-11-22 10:48 UTC (permalink / raw)
To: Aisheng Dong, Shawn Guo, Leonard Crestez, Stephen Boyd,
Sascha Hauer, Jacky Bai
Cc: Peng Fan, dl-linux-imx, linux-clk, linux-arm-kernel,
Linux Kernel Mailing List, Abel Vesa
These changes are cleanups for the clk_hw based API i.MX clock drivers switch
longterm effort. As mentioned in the commit messages, the end goal here is to
have all the i.MX drivers use clk_hw based API only.
I've put these all in a single patchset since they do not impact in any way
the expected behavior of the drivers and they are quite obvious trivial ones.
More patches to follow for the older i.MX platforms but those might not be as
harmless (and trivial) as these ones.
Changes since v1:
- added a patch that takes care of the register function handling when the
clk based API helpers are used, as suggested by Leonard Crestez.
- Renamed the SCCG to SSCG, as suggested by Leonard Crestez.
Abel Vesa (11):
clk: imx: Add correct failure handling for clk based helpers
clk: imx: Rename the SCCG to SSCG
clk: imx: Replace all the clk based helpers with macros
clk: imx: pllv1: Switch to clk_hw based API
clk: imx: pllv2: Switch to clk_hw based API
clk: imx: imx7ulp composite: Rename to show is clk_hw based
clk: imx: Rename sccg and frac pll register to suggest clk_hw
clk: imx: Rename the imx_clk_pllv4 to imply it's clk_hw based
clk: imx: Rename the imx_clk_pfdv2 to imply it's clk_hw based
clk: imx: Rename the imx_clk_divider_gate to imply it's clk_hw based
clk: imx7up: Rename the clks to hws
drivers/clk/imx/Makefile | 2 +-
drivers/clk/imx/clk-composite-7ulp.c | 2 +-
drivers/clk/imx/clk-divider-gate.c | 2 +-
drivers/clk/imx/clk-frac-pll.c | 7 +-
drivers/clk/imx/clk-imx7ulp.c | 182 ++++++------
drivers/clk/imx/clk-imx8mq.c | 6 +-
drivers/clk/imx/clk-pfdv2.c | 2 +-
drivers/clk/imx/clk-pllv1.c | 14 +-
drivers/clk/imx/clk-pllv2.c | 14 +-
drivers/clk/imx/clk-pllv4.c | 2 +-
drivers/clk/imx/clk-sccg-pll.c | 549 -----------------------------------
drivers/clk/imx/clk-sscg-pll.c | 549 +++++++++++++++++++++++++++++++++++
drivers/clk/imx/clk.h | 102 ++++---
13 files changed, 724 insertions(+), 709 deletions(-)
delete mode 100644 drivers/clk/imx/clk-sccg-pll.c
create mode 100644 drivers/clk/imx/clk-sscg-pll.c
--
2.7.4
^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH v2 01/11] clk: imx: Add correct failure handling for clk based helpers
2019-11-22 10:48 [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Abel Vesa
@ 2019-11-22 10:48 ` Abel Vesa
2019-11-22 21:48 ` Leonard Crestez
2019-11-22 10:48 ` [PATCH v2 02/11] clk: imx: Rename the SCCG to SSCG Abel Vesa
` (10 subsequent siblings)
11 siblings, 1 reply; 15+ messages in thread
From: Abel Vesa @ 2019-11-22 10:48 UTC (permalink / raw)
To: Aisheng Dong, Shawn Guo, Leonard Crestez, Stephen Boyd,
Sascha Hauer, Jacky Bai
Cc: Peng Fan, dl-linux-imx, linux-clk, linux-arm-kernel,
Linux Kernel Mailing List, Abel Vesa
If the clk_hw based API returns an error, trying to return the clk from
hw will end up in a NULL pointer dereference. So adding the to_clk
checker and using it inside every clk based macro helper we handle that
case correctly.
This to_clk is also temporary and will go away along with the clk based
macro helpers once there is no user that need them anymore.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
---
drivers/clk/imx/clk.h | 37 ++++++++++++++++++++++---------------
1 file changed, 22 insertions(+), 15 deletions(-)
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index bc5bb6a..30ddbc1 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -54,48 +54,48 @@ extern struct imx_pll14xx_clk imx_1416x_pll;
extern struct imx_pll14xx_clk imx_1443x_pll;
#define imx_clk_cpu(name, parent_name, div, mux, pll, step) \
- imx_clk_hw_cpu(name, parent_name, div, mux, pll, step)->clk
+ to_clk(imx_clk_hw_cpu(name, parent_name, div, mux, pll, step))
#define clk_register_gate2(dev, name, parent_name, flags, reg, bit_idx, \
cgr_val, clk_gate_flags, lock, share_count) \
- clk_hw_register_gate2(dev, name, parent_name, flags, reg, bit_idx, \
- cgr_val, clk_gate_flags, lock, share_count)->clk
+ to_clk(clk_hw_register_gate2(dev, name, parent_name, flags, reg, bit_idx, \
+ cgr_val, clk_gate_flags, lock, share_count))
#define imx_clk_pllv3(type, name, parent_name, base, div_mask) \
- imx_clk_hw_pllv3(type, name, parent_name, base, div_mask)->clk
+ to_clk(imx_clk_hw_pllv3(type, name, parent_name, base, div_mask))
#define imx_clk_pfd(name, parent_name, reg, idx) \
- imx_clk_hw_pfd(name, parent_name, reg, idx)->clk
+ to_clk(imx_clk_hw_pfd(name, parent_name, reg, idx))
#define imx_clk_gate_exclusive(name, parent, reg, shift, exclusive_mask) \
- imx_clk_hw_gate_exclusive(name, parent, reg, shift, exclusive_mask)->clk
+ to_clk(imx_clk_hw_gate_exclusive(name, parent, reg, shift, exclusive_mask))
#define imx_clk_fixed_factor(name, parent, mult, div) \
- imx_clk_hw_fixed_factor(name, parent, mult, div)->clk
+ to_clk(imx_clk_hw_fixed_factor(name, parent, mult, div))
#define imx_clk_divider2(name, parent, reg, shift, width) \
- imx_clk_hw_divider2(name, parent, reg, shift, width)->clk
+ to_clk(imx_clk_hw_divider2(name, parent, reg, shift, width))
#define imx_clk_gate_dis(name, parent, reg, shift) \
- imx_clk_hw_gate_dis(name, parent, reg, shift)->clk
+ to_clk(imx_clk_hw_gate_dis(name, parent, reg, shift))
#define imx_clk_gate2(name, parent, reg, shift) \
- imx_clk_hw_gate2(name, parent, reg, shift)->clk
+ to_clk(imx_clk_hw_gate2(name, parent, reg, shift))
#define imx_clk_gate2_flags(name, parent, reg, shift, flags) \
- imx_clk_hw_gate2_flags(name, parent, reg, shift, flags)->clk
+ to_clk(imx_clk_hw_gate2_flags(name, parent, reg, shift, flags))
#define imx_clk_gate2_shared2(name, parent, reg, shift, share_count) \
- imx_clk_hw_gate2_shared2(name, parent, reg, shift, share_count)->clk
+ to_clk(imx_clk_hw_gate2_shared2(name, parent, reg, shift, share_count))
#define imx_clk_gate3(name, parent, reg, shift) \
- imx_clk_hw_gate3(name, parent, reg, shift)->clk
+ to_clk(imx_clk_hw_gate3(name, parent, reg, shift))
#define imx_clk_gate4(name, parent, reg, shift) \
- imx_clk_hw_gate4(name, parent, reg, shift)->clk
+ to_clk(imx_clk_hw_gate4(name, parent, reg, shift))
#define imx_clk_mux(name, reg, shift, width, parents, num_parents) \
- imx_clk_hw_mux(name, reg, shift, width, parents, num_parents)->clk
+ to_clk(imx_clk_hw_mux(name, reg, shift, width, parents, num_parents))
struct clk *imx_clk_pll14xx(const char *name, const char *parent_name,
void __iomem *base, const struct imx_pll14xx_clk *pll_clk);
@@ -198,6 +198,13 @@ struct clk_hw *imx_clk_hw_fixup_mux(const char *name, void __iomem *reg,
u8 shift, u8 width, const char * const *parents,
int num_parents, void (*fixup)(u32 *val));
+static inline struct clk *to_clk(struct clk_hw *hw)
+{
+ if (IS_ERR_OR_NULL(hw))
+ return ERR_CAST(hw);
+ return hw->clk;
+}
+
static inline struct clk *imx_clk_fixed(const char *name, int rate)
{
return clk_register_fixed_rate(NULL, name, NULL, 0, rate);
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 02/11] clk: imx: Rename the SCCG to SSCG
2019-11-22 10:48 [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Abel Vesa
2019-11-22 10:48 ` [PATCH v2 01/11] clk: imx: Add correct failure handling for clk based helpers Abel Vesa
@ 2019-11-22 10:48 ` Abel Vesa
2019-11-22 21:50 ` Leonard Crestez
2019-11-22 10:48 ` [PATCH v2 04/11] clk: imx: pllv1: Switch to clk_hw based API Abel Vesa
` (9 subsequent siblings)
11 siblings, 1 reply; 15+ messages in thread
From: Abel Vesa @ 2019-11-22 10:48 UTC (permalink / raw)
To: Aisheng Dong, Shawn Guo, Leonard Crestez, Stephen Boyd,
Sascha Hauer, Jacky Bai
Cc: Peng Fan, dl-linux-imx, linux-clk, linux-arm-kernel,
Linux Kernel Mailing List, Abel Vesa
According to the manual the acronym stands for
Spread Sprectum Clock Generator.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
---
drivers/clk/imx/Makefile | 2 +-
drivers/clk/imx/clk-imx8mq.c | 6 +-
drivers/clk/imx/clk-sccg-pll.c | 549 -----------------------------------------
drivers/clk/imx/clk-sscg-pll.c | 549 +++++++++++++++++++++++++++++++++++++++++
drivers/clk/imx/clk.h | 4 +-
5 files changed, 555 insertions(+), 555 deletions(-)
delete mode 100644 drivers/clk/imx/clk-sccg-pll.c
create mode 100644 drivers/clk/imx/clk-sscg-pll.c
diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile
index 77a3d71..3724ba7 100644
--- a/drivers/clk/imx/Makefile
+++ b/drivers/clk/imx/Makefile
@@ -18,7 +18,7 @@ obj-$(CONFIG_MXC_CLK) += \
clk-pllv2.o \
clk-pllv3.o \
clk-pllv4.o \
- clk-sccg-pll.o \
+ clk-sscg-pll.o \
clk-pll14xx.o
obj-$(CONFIG_MXC_CLK_SCU) += \
diff --git a/drivers/clk/imx/clk-imx8mq.c b/drivers/clk/imx/clk-imx8mq.c
index 5f10a60..f2a35b1 100644
--- a/drivers/clk/imx/clk-imx8mq.c
+++ b/drivers/clk/imx/clk-imx8mq.c
@@ -342,9 +342,9 @@ static int imx8mq_clocks_probe(struct platform_device *pdev)
clks[IMX8MQ_SYS1_PLL_OUT] = imx_clk_fixed("sys1_pll_out", 800000000);
clks[IMX8MQ_SYS2_PLL_OUT] = imx_clk_fixed("sys2_pll_out", 1000000000);
- clks[IMX8MQ_SYS3_PLL_OUT] = imx_clk_sccg_pll("sys3_pll_out", sys3_pll_out_sels, ARRAY_SIZE(sys3_pll_out_sels), 0, 0, 0, base + 0x48, CLK_IS_CRITICAL);
- clks[IMX8MQ_DRAM_PLL_OUT] = imx_clk_sccg_pll("dram_pll_out", dram_pll_out_sels, ARRAY_SIZE(dram_pll_out_sels), 0, 0, 0, base + 0x60, CLK_IS_CRITICAL);
- clks[IMX8MQ_VIDEO2_PLL_OUT] = imx_clk_sccg_pll("video2_pll_out", video2_pll_out_sels, ARRAY_SIZE(video2_pll_out_sels), 0, 0, 0, base + 0x54, 0);
+ clks[IMX8MQ_SYS3_PLL_OUT] = imx_clk_sscg_pll("sys3_pll_out", sys3_pll_out_sels, ARRAY_SIZE(sys3_pll_out_sels), 0, 0, 0, base + 0x48, CLK_IS_CRITICAL);
+ clks[IMX8MQ_DRAM_PLL_OUT] = imx_clk_sscg_pll("dram_pll_out", dram_pll_out_sels, ARRAY_SIZE(dram_pll_out_sels), 0, 0, 0, base + 0x60, CLK_IS_CRITICAL);
+ clks[IMX8MQ_VIDEO2_PLL_OUT] = imx_clk_sscg_pll("video2_pll_out", video2_pll_out_sels, ARRAY_SIZE(video2_pll_out_sels), 0, 0, 0, base + 0x54, 0);
/* SYS PLL1 fixed output */
clks[IMX8MQ_SYS1_PLL_40M_CG] = imx_clk_gate("sys1_pll_40m_cg", "sys1_pll_out", base + 0x30, 9);
diff --git a/drivers/clk/imx/clk-sccg-pll.c b/drivers/clk/imx/clk-sccg-pll.c
deleted file mode 100644
index 5d65f65..00000000
--- a/drivers/clk/imx/clk-sccg-pll.c
+++ /dev/null
@@ -1,549 +0,0 @@
-// SPDX-License-Identifier: (GPL-2.0 OR MIT)
-/*
- * Copyright 2018 NXP.
- *
- * This driver supports the SCCG plls found in the imx8m SOCs
- *
- * Documentation for this SCCG pll can be found at:
- * https://www.nxp.com/docs/en/reference-manual/IMX8MDQLQRM.pdf#page=834
- */
-
-#include <linux/clk-provider.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/iopoll.h>
-#include <linux/slab.h>
-#include <linux/bitfield.h>
-
-#include "clk.h"
-
-/* PLL CFGs */
-#define PLL_CFG0 0x0
-#define PLL_CFG1 0x4
-#define PLL_CFG2 0x8
-
-#define PLL_DIVF1_MASK GENMASK(18, 13)
-#define PLL_DIVF2_MASK GENMASK(12, 7)
-#define PLL_DIVR1_MASK GENMASK(27, 25)
-#define PLL_DIVR2_MASK GENMASK(24, 19)
-#define PLL_DIVQ_MASK GENMASK(6, 1)
-#define PLL_REF_MASK GENMASK(2, 0)
-
-#define PLL_LOCK_MASK BIT(31)
-#define PLL_PD_MASK BIT(7)
-
-/* These are the specification limits for the SSCG PLL */
-#define PLL_REF_MIN_FREQ 25000000UL
-#define PLL_REF_MAX_FREQ 235000000UL
-
-#define PLL_STAGE1_MIN_FREQ 1600000000UL
-#define PLL_STAGE1_MAX_FREQ 2400000000UL
-
-#define PLL_STAGE1_REF_MIN_FREQ 25000000UL
-#define PLL_STAGE1_REF_MAX_FREQ 54000000UL
-
-#define PLL_STAGE2_MIN_FREQ 1200000000UL
-#define PLL_STAGE2_MAX_FREQ 2400000000UL
-
-#define PLL_STAGE2_REF_MIN_FREQ 54000000UL
-#define PLL_STAGE2_REF_MAX_FREQ 75000000UL
-
-#define PLL_OUT_MIN_FREQ 20000000UL
-#define PLL_OUT_MAX_FREQ 1200000000UL
-
-#define PLL_DIVR1_MAX 7
-#define PLL_DIVR2_MAX 63
-#define PLL_DIVF1_MAX 63
-#define PLL_DIVF2_MAX 63
-#define PLL_DIVQ_MAX 63
-
-#define PLL_BYPASS_NONE 0x0
-#define PLL_BYPASS1 0x2
-#define PLL_BYPASS2 0x1
-
-#define SSCG_PLL_BYPASS1_MASK BIT(5)
-#define SSCG_PLL_BYPASS2_MASK BIT(4)
-#define SSCG_PLL_BYPASS_MASK GENMASK(5, 4)
-
-#define PLL_SCCG_LOCK_TIMEOUT 70
-
-struct clk_sccg_pll_setup {
- int divr1, divf1;
- int divr2, divf2;
- int divq;
- int bypass;
-
- uint64_t vco1;
- uint64_t vco2;
- uint64_t fout;
- uint64_t ref;
- uint64_t ref_div1;
- uint64_t ref_div2;
- uint64_t fout_request;
- int fout_error;
-};
-
-struct clk_sccg_pll {
- struct clk_hw hw;
- const struct clk_ops ops;
-
- void __iomem *base;
-
- struct clk_sccg_pll_setup setup;
-
- u8 parent;
- u8 bypass1;
- u8 bypass2;
-};
-
-#define to_clk_sccg_pll(_hw) container_of(_hw, struct clk_sccg_pll, hw)
-
-static int clk_sccg_pll_wait_lock(struct clk_sccg_pll *pll)
-{
- u32 val;
-
- val = readl_relaxed(pll->base + PLL_CFG0);
-
- /* don't wait for lock if all plls are bypassed */
- if (!(val & SSCG_PLL_BYPASS2_MASK))
- return readl_poll_timeout(pll->base, val, val & PLL_LOCK_MASK,
- 0, PLL_SCCG_LOCK_TIMEOUT);
-
- return 0;
-}
-
-static int clk_sccg_pll2_check_match(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup)
-{
- int new_diff = temp_setup->fout - temp_setup->fout_request;
- int diff = temp_setup->fout_error;
-
- if (abs(diff) > abs(new_diff)) {
- temp_setup->fout_error = new_diff;
- memcpy(setup, temp_setup, sizeof(struct clk_sccg_pll_setup));
-
- if (temp_setup->fout_request == temp_setup->fout)
- return 0;
- }
- return -1;
-}
-
-static int clk_sccg_divq_lookup(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup)
-{
- int ret = -EINVAL;
-
- for (temp_setup->divq = 0; temp_setup->divq <= PLL_DIVQ_MAX;
- temp_setup->divq++) {
- temp_setup->vco2 = temp_setup->vco1;
- do_div(temp_setup->vco2, temp_setup->divr2 + 1);
- temp_setup->vco2 *= 2;
- temp_setup->vco2 *= temp_setup->divf2 + 1;
- if (temp_setup->vco2 >= PLL_STAGE2_MIN_FREQ &&
- temp_setup->vco2 <= PLL_STAGE2_MAX_FREQ) {
- temp_setup->fout = temp_setup->vco2;
- do_div(temp_setup->fout, 2 * (temp_setup->divq + 1));
-
- ret = clk_sccg_pll2_check_match(setup, temp_setup);
- if (!ret) {
- temp_setup->bypass = PLL_BYPASS1;
- return ret;
- }
- }
- }
-
- return ret;
-}
-
-static int clk_sccg_divf2_lookup(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup)
-{
- int ret = -EINVAL;
-
- for (temp_setup->divf2 = 0; temp_setup->divf2 <= PLL_DIVF2_MAX;
- temp_setup->divf2++) {
- ret = clk_sccg_divq_lookup(setup, temp_setup);
- if (!ret)
- return ret;
- }
-
- return ret;
-}
-
-static int clk_sccg_divr2_lookup(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup)
-{
- int ret = -EINVAL;
-
- for (temp_setup->divr2 = 0; temp_setup->divr2 <= PLL_DIVR2_MAX;
- temp_setup->divr2++) {
- temp_setup->ref_div2 = temp_setup->vco1;
- do_div(temp_setup->ref_div2, temp_setup->divr2 + 1);
- if (temp_setup->ref_div2 >= PLL_STAGE2_REF_MIN_FREQ &&
- temp_setup->ref_div2 <= PLL_STAGE2_REF_MAX_FREQ) {
- ret = clk_sccg_divf2_lookup(setup, temp_setup);
- if (!ret)
- return ret;
- }
- }
-
- return ret;
-}
-
-static int clk_sccg_pll2_find_setup(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup,
- uint64_t ref)
-{
-
- int ret = -EINVAL;
-
- if (ref < PLL_STAGE1_MIN_FREQ || ref > PLL_STAGE1_MAX_FREQ)
- return ret;
-
- temp_setup->vco1 = ref;
-
- ret = clk_sccg_divr2_lookup(setup, temp_setup);
- return ret;
-}
-
-static int clk_sccg_divf1_lookup(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup)
-{
- int ret = -EINVAL;
-
- for (temp_setup->divf1 = 0; temp_setup->divf1 <= PLL_DIVF1_MAX;
- temp_setup->divf1++) {
- uint64_t vco1 = temp_setup->ref;
-
- do_div(vco1, temp_setup->divr1 + 1);
- vco1 *= 2;
- vco1 *= temp_setup->divf1 + 1;
-
- ret = clk_sccg_pll2_find_setup(setup, temp_setup, vco1);
- if (!ret) {
- temp_setup->bypass = PLL_BYPASS_NONE;
- return ret;
- }
- }
-
- return ret;
-}
-
-static int clk_sccg_divr1_lookup(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup)
-{
- int ret = -EINVAL;
-
- for (temp_setup->divr1 = 0; temp_setup->divr1 <= PLL_DIVR1_MAX;
- temp_setup->divr1++) {
- temp_setup->ref_div1 = temp_setup->ref;
- do_div(temp_setup->ref_div1, temp_setup->divr1 + 1);
- if (temp_setup->ref_div1 >= PLL_STAGE1_REF_MIN_FREQ &&
- temp_setup->ref_div1 <= PLL_STAGE1_REF_MAX_FREQ) {
- ret = clk_sccg_divf1_lookup(setup, temp_setup);
- if (!ret)
- return ret;
- }
- }
-
- return ret;
-}
-
-static int clk_sccg_pll1_find_setup(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup,
- uint64_t ref)
-{
-
- int ret = -EINVAL;
-
- if (ref < PLL_REF_MIN_FREQ || ref > PLL_REF_MAX_FREQ)
- return ret;
-
- temp_setup->ref = ref;
-
- ret = clk_sccg_divr1_lookup(setup, temp_setup);
-
- return ret;
-}
-
-static int clk_sccg_pll_find_setup(struct clk_sccg_pll_setup *setup,
- uint64_t prate,
- uint64_t rate, int try_bypass)
-{
- struct clk_sccg_pll_setup temp_setup;
- int ret = -EINVAL;
-
- memset(&temp_setup, 0, sizeof(struct clk_sccg_pll_setup));
- memset(setup, 0, sizeof(struct clk_sccg_pll_setup));
-
- temp_setup.fout_error = PLL_OUT_MAX_FREQ;
- temp_setup.fout_request = rate;
-
- switch (try_bypass) {
-
- case PLL_BYPASS2:
- if (prate == rate) {
- setup->bypass = PLL_BYPASS2;
- setup->fout = rate;
- ret = 0;
- }
- break;
-
- case PLL_BYPASS1:
- ret = clk_sccg_pll2_find_setup(setup, &temp_setup, prate);
- break;
-
- case PLL_BYPASS_NONE:
- ret = clk_sccg_pll1_find_setup(setup, &temp_setup, prate);
- break;
- }
-
- return ret;
-}
-
-
-static int clk_sccg_pll_is_prepared(struct clk_hw *hw)
-{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
-
- u32 val = readl_relaxed(pll->base + PLL_CFG0);
-
- return (val & PLL_PD_MASK) ? 0 : 1;
-}
-
-static int clk_sccg_pll_prepare(struct clk_hw *hw)
-{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
- u32 val;
-
- val = readl_relaxed(pll->base + PLL_CFG0);
- val &= ~PLL_PD_MASK;
- writel_relaxed(val, pll->base + PLL_CFG0);
-
- return clk_sccg_pll_wait_lock(pll);
-}
-
-static void clk_sccg_pll_unprepare(struct clk_hw *hw)
-{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
- u32 val;
-
- val = readl_relaxed(pll->base + PLL_CFG0);
- val |= PLL_PD_MASK;
- writel_relaxed(val, pll->base + PLL_CFG0);
-}
-
-static unsigned long clk_sccg_pll_recalc_rate(struct clk_hw *hw,
- unsigned long parent_rate)
-{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
- u32 val, divr1, divf1, divr2, divf2, divq;
- u64 temp64;
-
- val = readl_relaxed(pll->base + PLL_CFG2);
- divr1 = FIELD_GET(PLL_DIVR1_MASK, val);
- divr2 = FIELD_GET(PLL_DIVR2_MASK, val);
- divf1 = FIELD_GET(PLL_DIVF1_MASK, val);
- divf2 = FIELD_GET(PLL_DIVF2_MASK, val);
- divq = FIELD_GET(PLL_DIVQ_MASK, val);
-
- temp64 = parent_rate;
-
- val = readl(pll->base + PLL_CFG0);
- if (val & SSCG_PLL_BYPASS2_MASK) {
- temp64 = parent_rate;
- } else if (val & SSCG_PLL_BYPASS1_MASK) {
- temp64 *= divf2;
- do_div(temp64, (divr2 + 1) * (divq + 1));
- } else {
- temp64 *= 2;
- temp64 *= (divf1 + 1) * (divf2 + 1);
- do_div(temp64, (divr1 + 1) * (divr2 + 1) * (divq + 1));
- }
-
- return temp64;
-}
-
-static int clk_sccg_pll_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate)
-{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
- struct clk_sccg_pll_setup *setup = &pll->setup;
- u32 val;
-
- /* set bypass here too since the parent might be the same */
- val = readl(pll->base + PLL_CFG0);
- val &= ~SSCG_PLL_BYPASS_MASK;
- val |= FIELD_PREP(SSCG_PLL_BYPASS_MASK, setup->bypass);
- writel(val, pll->base + PLL_CFG0);
-
- val = readl_relaxed(pll->base + PLL_CFG2);
- val &= ~(PLL_DIVF1_MASK | PLL_DIVF2_MASK);
- val &= ~(PLL_DIVR1_MASK | PLL_DIVR2_MASK | PLL_DIVQ_MASK);
- val |= FIELD_PREP(PLL_DIVF1_MASK, setup->divf1);
- val |= FIELD_PREP(PLL_DIVF2_MASK, setup->divf2);
- val |= FIELD_PREP(PLL_DIVR1_MASK, setup->divr1);
- val |= FIELD_PREP(PLL_DIVR2_MASK, setup->divr2);
- val |= FIELD_PREP(PLL_DIVQ_MASK, setup->divq);
- writel_relaxed(val, pll->base + PLL_CFG2);
-
- return clk_sccg_pll_wait_lock(pll);
-}
-
-static u8 clk_sccg_pll_get_parent(struct clk_hw *hw)
-{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
- u32 val;
- u8 ret = pll->parent;
-
- val = readl(pll->base + PLL_CFG0);
- if (val & SSCG_PLL_BYPASS2_MASK)
- ret = pll->bypass2;
- else if (val & SSCG_PLL_BYPASS1_MASK)
- ret = pll->bypass1;
- return ret;
-}
-
-static int clk_sccg_pll_set_parent(struct clk_hw *hw, u8 index)
-{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
- u32 val;
-
- val = readl(pll->base + PLL_CFG0);
- val &= ~SSCG_PLL_BYPASS_MASK;
- val |= FIELD_PREP(SSCG_PLL_BYPASS_MASK, pll->setup.bypass);
- writel(val, pll->base + PLL_CFG0);
-
- return clk_sccg_pll_wait_lock(pll);
-}
-
-static int __clk_sccg_pll_determine_rate(struct clk_hw *hw,
- struct clk_rate_request *req,
- uint64_t min,
- uint64_t max,
- uint64_t rate,
- int bypass)
-{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
- struct clk_sccg_pll_setup *setup = &pll->setup;
- struct clk_hw *parent_hw = NULL;
- int bypass_parent_index;
- int ret = -EINVAL;
-
- req->max_rate = max;
- req->min_rate = min;
-
- switch (bypass) {
- case PLL_BYPASS2:
- bypass_parent_index = pll->bypass2;
- break;
- case PLL_BYPASS1:
- bypass_parent_index = pll->bypass1;
- break;
- default:
- bypass_parent_index = pll->parent;
- break;
- }
-
- parent_hw = clk_hw_get_parent_by_index(hw, bypass_parent_index);
- ret = __clk_determine_rate(parent_hw, req);
- if (!ret) {
- ret = clk_sccg_pll_find_setup(setup, req->rate,
- rate, bypass);
- }
-
- req->best_parent_hw = parent_hw;
- req->best_parent_rate = req->rate;
- req->rate = setup->fout;
-
- return ret;
-}
-
-static int clk_sccg_pll_determine_rate(struct clk_hw *hw,
- struct clk_rate_request *req)
-{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
- struct clk_sccg_pll_setup *setup = &pll->setup;
- uint64_t rate = req->rate;
- uint64_t min = req->min_rate;
- uint64_t max = req->max_rate;
- int ret = -EINVAL;
-
- if (rate < PLL_OUT_MIN_FREQ || rate > PLL_OUT_MAX_FREQ)
- return ret;
-
- ret = __clk_sccg_pll_determine_rate(hw, req, req->rate, req->rate,
- rate, PLL_BYPASS2);
- if (!ret)
- return ret;
-
- ret = __clk_sccg_pll_determine_rate(hw, req, PLL_STAGE1_REF_MIN_FREQ,
- PLL_STAGE1_REF_MAX_FREQ, rate,
- PLL_BYPASS1);
- if (!ret)
- return ret;
-
- ret = __clk_sccg_pll_determine_rate(hw, req, PLL_REF_MIN_FREQ,
- PLL_REF_MAX_FREQ, rate,
- PLL_BYPASS_NONE);
- if (!ret)
- return ret;
-
- if (setup->fout >= min && setup->fout <= max)
- ret = 0;
-
- return ret;
-}
-
-static const struct clk_ops clk_sccg_pll_ops = {
- .prepare = clk_sccg_pll_prepare,
- .unprepare = clk_sccg_pll_unprepare,
- .is_prepared = clk_sccg_pll_is_prepared,
- .recalc_rate = clk_sccg_pll_recalc_rate,
- .set_rate = clk_sccg_pll_set_rate,
- .set_parent = clk_sccg_pll_set_parent,
- .get_parent = clk_sccg_pll_get_parent,
- .determine_rate = clk_sccg_pll_determine_rate,
-};
-
-struct clk *imx_clk_sccg_pll(const char *name,
- const char * const *parent_names,
- u8 num_parents,
- u8 parent, u8 bypass1, u8 bypass2,
- void __iomem *base,
- unsigned long flags)
-{
- struct clk_sccg_pll *pll;
- struct clk_init_data init;
- struct clk_hw *hw;
- int ret;
-
- pll = kzalloc(sizeof(*pll), GFP_KERNEL);
- if (!pll)
- return ERR_PTR(-ENOMEM);
-
- pll->parent = parent;
- pll->bypass1 = bypass1;
- pll->bypass2 = bypass2;
-
- pll->base = base;
- init.name = name;
- init.ops = &clk_sccg_pll_ops;
-
- init.flags = flags;
- init.parent_names = parent_names;
- init.num_parents = num_parents;
-
- pll->base = base;
- pll->hw.init = &init;
-
- hw = &pll->hw;
-
- ret = clk_hw_register(NULL, hw);
- if (ret) {
- kfree(pll);
- return ERR_PTR(ret);
- }
-
- return hw->clk;
-}
diff --git a/drivers/clk/imx/clk-sscg-pll.c b/drivers/clk/imx/clk-sscg-pll.c
new file mode 100644
index 00000000..0669e17
--- /dev/null
+++ b/drivers/clk/imx/clk-sscg-pll.c
@@ -0,0 +1,549 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2018 NXP.
+ *
+ * This driver supports the SCCG plls found in the imx8m SOCs
+ *
+ * Documentation for this SCCG pll can be found at:
+ * https://www.nxp.com/docs/en/reference-manual/IMX8MDQLQRM.pdf#page=834
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/slab.h>
+#include <linux/bitfield.h>
+
+#include "clk.h"
+
+/* PLL CFGs */
+#define PLL_CFG0 0x0
+#define PLL_CFG1 0x4
+#define PLL_CFG2 0x8
+
+#define PLL_DIVF1_MASK GENMASK(18, 13)
+#define PLL_DIVF2_MASK GENMASK(12, 7)
+#define PLL_DIVR1_MASK GENMASK(27, 25)
+#define PLL_DIVR2_MASK GENMASK(24, 19)
+#define PLL_DIVQ_MASK GENMASK(6, 1)
+#define PLL_REF_MASK GENMASK(2, 0)
+
+#define PLL_LOCK_MASK BIT(31)
+#define PLL_PD_MASK BIT(7)
+
+/* These are the specification limits for the SSCG PLL */
+#define PLL_REF_MIN_FREQ 25000000UL
+#define PLL_REF_MAX_FREQ 235000000UL
+
+#define PLL_STAGE1_MIN_FREQ 1600000000UL
+#define PLL_STAGE1_MAX_FREQ 2400000000UL
+
+#define PLL_STAGE1_REF_MIN_FREQ 25000000UL
+#define PLL_STAGE1_REF_MAX_FREQ 54000000UL
+
+#define PLL_STAGE2_MIN_FREQ 1200000000UL
+#define PLL_STAGE2_MAX_FREQ 2400000000UL
+
+#define PLL_STAGE2_REF_MIN_FREQ 54000000UL
+#define PLL_STAGE2_REF_MAX_FREQ 75000000UL
+
+#define PLL_OUT_MIN_FREQ 20000000UL
+#define PLL_OUT_MAX_FREQ 1200000000UL
+
+#define PLL_DIVR1_MAX 7
+#define PLL_DIVR2_MAX 63
+#define PLL_DIVF1_MAX 63
+#define PLL_DIVF2_MAX 63
+#define PLL_DIVQ_MAX 63
+
+#define PLL_BYPASS_NONE 0x0
+#define PLL_BYPASS1 0x2
+#define PLL_BYPASS2 0x1
+
+#define SSCG_PLL_BYPASS1_MASK BIT(5)
+#define SSCG_PLL_BYPASS2_MASK BIT(4)
+#define SSCG_PLL_BYPASS_MASK GENMASK(5, 4)
+
+#define PLL_SCCG_LOCK_TIMEOUT 70
+
+struct clk_sscg_pll_setup {
+ int divr1, divf1;
+ int divr2, divf2;
+ int divq;
+ int bypass;
+
+ uint64_t vco1;
+ uint64_t vco2;
+ uint64_t fout;
+ uint64_t ref;
+ uint64_t ref_div1;
+ uint64_t ref_div2;
+ uint64_t fout_request;
+ int fout_error;
+};
+
+struct clk_sscg_pll {
+ struct clk_hw hw;
+ const struct clk_ops ops;
+
+ void __iomem *base;
+
+ struct clk_sscg_pll_setup setup;
+
+ u8 parent;
+ u8 bypass1;
+ u8 bypass2;
+};
+
+#define to_clk_sscg_pll(_hw) container_of(_hw, struct clk_sscg_pll, hw)
+
+static int clk_sscg_pll_wait_lock(struct clk_sscg_pll *pll)
+{
+ u32 val;
+
+ val = readl_relaxed(pll->base + PLL_CFG0);
+
+ /* don't wait for lock if all plls are bypassed */
+ if (!(val & SSCG_PLL_BYPASS2_MASK))
+ return readl_poll_timeout(pll->base, val, val & PLL_LOCK_MASK,
+ 0, PLL_SCCG_LOCK_TIMEOUT);
+
+ return 0;
+}
+
+static int clk_sscg_pll2_check_match(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup)
+{
+ int new_diff = temp_setup->fout - temp_setup->fout_request;
+ int diff = temp_setup->fout_error;
+
+ if (abs(diff) > abs(new_diff)) {
+ temp_setup->fout_error = new_diff;
+ memcpy(setup, temp_setup, sizeof(struct clk_sscg_pll_setup));
+
+ if (temp_setup->fout_request == temp_setup->fout)
+ return 0;
+ }
+ return -1;
+}
+
+static int clk_sscg_divq_lookup(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup)
+{
+ int ret = -EINVAL;
+
+ for (temp_setup->divq = 0; temp_setup->divq <= PLL_DIVQ_MAX;
+ temp_setup->divq++) {
+ temp_setup->vco2 = temp_setup->vco1;
+ do_div(temp_setup->vco2, temp_setup->divr2 + 1);
+ temp_setup->vco2 *= 2;
+ temp_setup->vco2 *= temp_setup->divf2 + 1;
+ if (temp_setup->vco2 >= PLL_STAGE2_MIN_FREQ &&
+ temp_setup->vco2 <= PLL_STAGE2_MAX_FREQ) {
+ temp_setup->fout = temp_setup->vco2;
+ do_div(temp_setup->fout, 2 * (temp_setup->divq + 1));
+
+ ret = clk_sscg_pll2_check_match(setup, temp_setup);
+ if (!ret) {
+ temp_setup->bypass = PLL_BYPASS1;
+ return ret;
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int clk_sscg_divf2_lookup(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup)
+{
+ int ret = -EINVAL;
+
+ for (temp_setup->divf2 = 0; temp_setup->divf2 <= PLL_DIVF2_MAX;
+ temp_setup->divf2++) {
+ ret = clk_sscg_divq_lookup(setup, temp_setup);
+ if (!ret)
+ return ret;
+ }
+
+ return ret;
+}
+
+static int clk_sscg_divr2_lookup(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup)
+{
+ int ret = -EINVAL;
+
+ for (temp_setup->divr2 = 0; temp_setup->divr2 <= PLL_DIVR2_MAX;
+ temp_setup->divr2++) {
+ temp_setup->ref_div2 = temp_setup->vco1;
+ do_div(temp_setup->ref_div2, temp_setup->divr2 + 1);
+ if (temp_setup->ref_div2 >= PLL_STAGE2_REF_MIN_FREQ &&
+ temp_setup->ref_div2 <= PLL_STAGE2_REF_MAX_FREQ) {
+ ret = clk_sscg_divf2_lookup(setup, temp_setup);
+ if (!ret)
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
+static int clk_sscg_pll2_find_setup(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup,
+ uint64_t ref)
+{
+
+ int ret = -EINVAL;
+
+ if (ref < PLL_STAGE1_MIN_FREQ || ref > PLL_STAGE1_MAX_FREQ)
+ return ret;
+
+ temp_setup->vco1 = ref;
+
+ ret = clk_sscg_divr2_lookup(setup, temp_setup);
+ return ret;
+}
+
+static int clk_sscg_divf1_lookup(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup)
+{
+ int ret = -EINVAL;
+
+ for (temp_setup->divf1 = 0; temp_setup->divf1 <= PLL_DIVF1_MAX;
+ temp_setup->divf1++) {
+ uint64_t vco1 = temp_setup->ref;
+
+ do_div(vco1, temp_setup->divr1 + 1);
+ vco1 *= 2;
+ vco1 *= temp_setup->divf1 + 1;
+
+ ret = clk_sscg_pll2_find_setup(setup, temp_setup, vco1);
+ if (!ret) {
+ temp_setup->bypass = PLL_BYPASS_NONE;
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
+static int clk_sscg_divr1_lookup(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup)
+{
+ int ret = -EINVAL;
+
+ for (temp_setup->divr1 = 0; temp_setup->divr1 <= PLL_DIVR1_MAX;
+ temp_setup->divr1++) {
+ temp_setup->ref_div1 = temp_setup->ref;
+ do_div(temp_setup->ref_div1, temp_setup->divr1 + 1);
+ if (temp_setup->ref_div1 >= PLL_STAGE1_REF_MIN_FREQ &&
+ temp_setup->ref_div1 <= PLL_STAGE1_REF_MAX_FREQ) {
+ ret = clk_sscg_divf1_lookup(setup, temp_setup);
+ if (!ret)
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
+static int clk_sscg_pll1_find_setup(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup,
+ uint64_t ref)
+{
+
+ int ret = -EINVAL;
+
+ if (ref < PLL_REF_MIN_FREQ || ref > PLL_REF_MAX_FREQ)
+ return ret;
+
+ temp_setup->ref = ref;
+
+ ret = clk_sscg_divr1_lookup(setup, temp_setup);
+
+ return ret;
+}
+
+static int clk_sscg_pll_find_setup(struct clk_sscg_pll_setup *setup,
+ uint64_t prate,
+ uint64_t rate, int try_bypass)
+{
+ struct clk_sscg_pll_setup temp_setup;
+ int ret = -EINVAL;
+
+ memset(&temp_setup, 0, sizeof(struct clk_sscg_pll_setup));
+ memset(setup, 0, sizeof(struct clk_sscg_pll_setup));
+
+ temp_setup.fout_error = PLL_OUT_MAX_FREQ;
+ temp_setup.fout_request = rate;
+
+ switch (try_bypass) {
+
+ case PLL_BYPASS2:
+ if (prate == rate) {
+ setup->bypass = PLL_BYPASS2;
+ setup->fout = rate;
+ ret = 0;
+ }
+ break;
+
+ case PLL_BYPASS1:
+ ret = clk_sscg_pll2_find_setup(setup, &temp_setup, prate);
+ break;
+
+ case PLL_BYPASS_NONE:
+ ret = clk_sscg_pll1_find_setup(setup, &temp_setup, prate);
+ break;
+ }
+
+ return ret;
+}
+
+
+static int clk_sscg_pll_is_prepared(struct clk_hw *hw)
+{
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
+
+ u32 val = readl_relaxed(pll->base + PLL_CFG0);
+
+ return (val & PLL_PD_MASK) ? 0 : 1;
+}
+
+static int clk_sscg_pll_prepare(struct clk_hw *hw)
+{
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
+ u32 val;
+
+ val = readl_relaxed(pll->base + PLL_CFG0);
+ val &= ~PLL_PD_MASK;
+ writel_relaxed(val, pll->base + PLL_CFG0);
+
+ return clk_sscg_pll_wait_lock(pll);
+}
+
+static void clk_sscg_pll_unprepare(struct clk_hw *hw)
+{
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
+ u32 val;
+
+ val = readl_relaxed(pll->base + PLL_CFG0);
+ val |= PLL_PD_MASK;
+ writel_relaxed(val, pll->base + PLL_CFG0);
+}
+
+static unsigned long clk_sscg_pll_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
+ u32 val, divr1, divf1, divr2, divf2, divq;
+ u64 temp64;
+
+ val = readl_relaxed(pll->base + PLL_CFG2);
+ divr1 = FIELD_GET(PLL_DIVR1_MASK, val);
+ divr2 = FIELD_GET(PLL_DIVR2_MASK, val);
+ divf1 = FIELD_GET(PLL_DIVF1_MASK, val);
+ divf2 = FIELD_GET(PLL_DIVF2_MASK, val);
+ divq = FIELD_GET(PLL_DIVQ_MASK, val);
+
+ temp64 = parent_rate;
+
+ val = readl(pll->base + PLL_CFG0);
+ if (val & SSCG_PLL_BYPASS2_MASK) {
+ temp64 = parent_rate;
+ } else if (val & SSCG_PLL_BYPASS1_MASK) {
+ temp64 *= divf2;
+ do_div(temp64, (divr2 + 1) * (divq + 1));
+ } else {
+ temp64 *= 2;
+ temp64 *= (divf1 + 1) * (divf2 + 1);
+ do_div(temp64, (divr1 + 1) * (divr2 + 1) * (divq + 1));
+ }
+
+ return temp64;
+}
+
+static int clk_sscg_pll_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
+ struct clk_sscg_pll_setup *setup = &pll->setup;
+ u32 val;
+
+ /* set bypass here too since the parent might be the same */
+ val = readl(pll->base + PLL_CFG0);
+ val &= ~SSCG_PLL_BYPASS_MASK;
+ val |= FIELD_PREP(SSCG_PLL_BYPASS_MASK, setup->bypass);
+ writel(val, pll->base + PLL_CFG0);
+
+ val = readl_relaxed(pll->base + PLL_CFG2);
+ val &= ~(PLL_DIVF1_MASK | PLL_DIVF2_MASK);
+ val &= ~(PLL_DIVR1_MASK | PLL_DIVR2_MASK | PLL_DIVQ_MASK);
+ val |= FIELD_PREP(PLL_DIVF1_MASK, setup->divf1);
+ val |= FIELD_PREP(PLL_DIVF2_MASK, setup->divf2);
+ val |= FIELD_PREP(PLL_DIVR1_MASK, setup->divr1);
+ val |= FIELD_PREP(PLL_DIVR2_MASK, setup->divr2);
+ val |= FIELD_PREP(PLL_DIVQ_MASK, setup->divq);
+ writel_relaxed(val, pll->base + PLL_CFG2);
+
+ return clk_sscg_pll_wait_lock(pll);
+}
+
+static u8 clk_sscg_pll_get_parent(struct clk_hw *hw)
+{
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
+ u32 val;
+ u8 ret = pll->parent;
+
+ val = readl(pll->base + PLL_CFG0);
+ if (val & SSCG_PLL_BYPASS2_MASK)
+ ret = pll->bypass2;
+ else if (val & SSCG_PLL_BYPASS1_MASK)
+ ret = pll->bypass1;
+ return ret;
+}
+
+static int clk_sscg_pll_set_parent(struct clk_hw *hw, u8 index)
+{
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
+ u32 val;
+
+ val = readl(pll->base + PLL_CFG0);
+ val &= ~SSCG_PLL_BYPASS_MASK;
+ val |= FIELD_PREP(SSCG_PLL_BYPASS_MASK, pll->setup.bypass);
+ writel(val, pll->base + PLL_CFG0);
+
+ return clk_sscg_pll_wait_lock(pll);
+}
+
+static int __clk_sscg_pll_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req,
+ uint64_t min,
+ uint64_t max,
+ uint64_t rate,
+ int bypass)
+{
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
+ struct clk_sscg_pll_setup *setup = &pll->setup;
+ struct clk_hw *parent_hw = NULL;
+ int bypass_parent_index;
+ int ret = -EINVAL;
+
+ req->max_rate = max;
+ req->min_rate = min;
+
+ switch (bypass) {
+ case PLL_BYPASS2:
+ bypass_parent_index = pll->bypass2;
+ break;
+ case PLL_BYPASS1:
+ bypass_parent_index = pll->bypass1;
+ break;
+ default:
+ bypass_parent_index = pll->parent;
+ break;
+ }
+
+ parent_hw = clk_hw_get_parent_by_index(hw, bypass_parent_index);
+ ret = __clk_determine_rate(parent_hw, req);
+ if (!ret) {
+ ret = clk_sscg_pll_find_setup(setup, req->rate,
+ rate, bypass);
+ }
+
+ req->best_parent_hw = parent_hw;
+ req->best_parent_rate = req->rate;
+ req->rate = setup->fout;
+
+ return ret;
+}
+
+static int clk_sscg_pll_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
+{
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
+ struct clk_sscg_pll_setup *setup = &pll->setup;
+ uint64_t rate = req->rate;
+ uint64_t min = req->min_rate;
+ uint64_t max = req->max_rate;
+ int ret = -EINVAL;
+
+ if (rate < PLL_OUT_MIN_FREQ || rate > PLL_OUT_MAX_FREQ)
+ return ret;
+
+ ret = __clk_sscg_pll_determine_rate(hw, req, req->rate, req->rate,
+ rate, PLL_BYPASS2);
+ if (!ret)
+ return ret;
+
+ ret = __clk_sscg_pll_determine_rate(hw, req, PLL_STAGE1_REF_MIN_FREQ,
+ PLL_STAGE1_REF_MAX_FREQ, rate,
+ PLL_BYPASS1);
+ if (!ret)
+ return ret;
+
+ ret = __clk_sscg_pll_determine_rate(hw, req, PLL_REF_MIN_FREQ,
+ PLL_REF_MAX_FREQ, rate,
+ PLL_BYPASS_NONE);
+ if (!ret)
+ return ret;
+
+ if (setup->fout >= min && setup->fout <= max)
+ ret = 0;
+
+ return ret;
+}
+
+static const struct clk_ops clk_sscg_pll_ops = {
+ .prepare = clk_sscg_pll_prepare,
+ .unprepare = clk_sscg_pll_unprepare,
+ .is_prepared = clk_sscg_pll_is_prepared,
+ .recalc_rate = clk_sscg_pll_recalc_rate,
+ .set_rate = clk_sscg_pll_set_rate,
+ .set_parent = clk_sscg_pll_set_parent,
+ .get_parent = clk_sscg_pll_get_parent,
+ .determine_rate = clk_sscg_pll_determine_rate,
+};
+
+struct clk *imx_clk_sscg_pll(const char *name,
+ const char * const *parent_names,
+ u8 num_parents,
+ u8 parent, u8 bypass1, u8 bypass2,
+ void __iomem *base,
+ unsigned long flags)
+{
+ struct clk_sscg_pll *pll;
+ struct clk_init_data init;
+ struct clk_hw *hw;
+ int ret;
+
+ pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+ if (!pll)
+ return ERR_PTR(-ENOMEM);
+
+ pll->parent = parent;
+ pll->bypass1 = bypass1;
+ pll->bypass2 = bypass2;
+
+ pll->base = base;
+ init.name = name;
+ init.ops = &clk_sscg_pll_ops;
+
+ init.flags = flags;
+ init.parent_names = parent_names;
+ init.num_parents = num_parents;
+
+ pll->base = base;
+ pll->hw.init = &init;
+
+ hw = &pll->hw;
+
+ ret = clk_hw_register(NULL, hw);
+ if (ret) {
+ kfree(pll);
+ return ERR_PTR(ret);
+ }
+
+ return hw->clk;
+}
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index 30ddbc1..9330632 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -24,7 +24,7 @@ enum imx_pllv1_type {
IMX_PLLV1_IMX35,
};
-enum imx_sccg_pll_type {
+enum imx_sscg_pll_type {
SCCG_PLL1,
SCCG_PLL2,
};
@@ -109,7 +109,7 @@ struct clk *imx_clk_pllv2(const char *name, const char *parent,
struct clk *imx_clk_frac_pll(const char *name, const char *parent_name,
void __iomem *base);
-struct clk *imx_clk_sccg_pll(const char *name,
+struct clk *imx_clk_sscg_pll(const char *name,
const char * const *parent_names,
u8 num_parents,
u8 parent, u8 bypass1, u8 bypass2,
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 04/11] clk: imx: pllv1: Switch to clk_hw based API
2019-11-22 10:48 [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Abel Vesa
2019-11-22 10:48 ` [PATCH v2 01/11] clk: imx: Add correct failure handling for clk based helpers Abel Vesa
2019-11-22 10:48 ` [PATCH v2 02/11] clk: imx: Rename the SCCG to SSCG Abel Vesa
@ 2019-11-22 10:48 ` Abel Vesa
2019-11-22 10:48 ` [PATCH v2 03/11] clk: imx: Replace all the clk based helpers with macros Abel Vesa
` (8 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Abel Vesa @ 2019-11-22 10:48 UTC (permalink / raw)
To: Aisheng Dong, Shawn Guo, Leonard Crestez, Stephen Boyd,
Sascha Hauer, Jacky Bai
Cc: Peng Fan, dl-linux-imx, linux-clk, linux-arm-kernel,
Linux Kernel Mailing List, Abel Vesa
Switch the imx_clk_pllv1 register function to clk_hw based API, rename
accordingly and add a macro for clk based legacy. This allows us to
move closer to a clear split between consumer and provider clk APIs.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---
drivers/clk/imx/clk-pllv1.c | 14 +++++++++-----
drivers/clk/imx/clk.h | 5 ++++-
2 files changed, 13 insertions(+), 6 deletions(-)
diff --git a/drivers/clk/imx/clk-pllv1.c b/drivers/clk/imx/clk-pllv1.c
index 4ba9973..de4f8a4 100644
--- a/drivers/clk/imx/clk-pllv1.c
+++ b/drivers/clk/imx/clk-pllv1.c
@@ -111,12 +111,13 @@ static const struct clk_ops clk_pllv1_ops = {
.recalc_rate = clk_pllv1_recalc_rate,
};
-struct clk *imx_clk_pllv1(enum imx_pllv1_type type, const char *name,
+struct clk_hw *imx_clk_hw_pllv1(enum imx_pllv1_type type, const char *name,
const char *parent, void __iomem *base)
{
struct clk_pllv1 *pll;
- struct clk *clk;
+ struct clk_hw *hw;
struct clk_init_data init;
+ int ret;
pll = kmalloc(sizeof(*pll), GFP_KERNEL);
if (!pll)
@@ -132,10 +133,13 @@ struct clk *imx_clk_pllv1(enum imx_pllv1_type type, const char *name,
init.num_parents = 1;
pll->hw.init = &init;
+ hw = &pll->hw;
- clk = clk_register(NULL, &pll->hw);
- if (IS_ERR(clk))
+ ret = clk_hw_register(NULL, hw);
+ if (ret) {
kfree(pll);
+ return ERR_PTR(ret);
+ }
- return clk;
+ return hw;
}
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index 3ed17a1..bd6a592 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -109,10 +109,13 @@ extern struct imx_pll14xx_clk imx_1443x_pll;
#define imx_clk_mux(name, reg, shift, width, parents, num_parents) \
to_clk(imx_clk_hw_mux(name, reg, shift, width, parents, num_parents))
+#define imx_clk_pllv1(type, name, parent, base) \
+ to_clk(imx_clk_hw_pllv1(type, name, parent, base))
+
struct clk *imx_clk_pll14xx(const char *name, const char *parent_name,
void __iomem *base, const struct imx_pll14xx_clk *pll_clk);
-struct clk *imx_clk_pllv1(enum imx_pllv1_type type, const char *name,
+struct clk_hw *imx_clk_hw_pllv1(enum imx_pllv1_type type, const char *name,
const char *parent, void __iomem *base);
struct clk *imx_clk_pllv2(const char *name, const char *parent,
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 03/11] clk: imx: Replace all the clk based helpers with macros
2019-11-22 10:48 [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Abel Vesa
` (2 preceding siblings ...)
2019-11-22 10:48 ` [PATCH v2 04/11] clk: imx: pllv1: Switch to clk_hw based API Abel Vesa
@ 2019-11-22 10:48 ` Abel Vesa
2019-11-22 10:48 ` [PATCH v2 05/11] clk: imx: pllv2: Switch to clk_hw based API Abel Vesa
` (7 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Abel Vesa @ 2019-11-22 10:48 UTC (permalink / raw)
To: Aisheng Dong, Shawn Guo, Leonard Crestez, Stephen Boyd,
Sascha Hauer, Jacky Bai
Cc: Peng Fan, dl-linux-imx, linux-clk, linux-arm-kernel,
Linux Kernel Mailing List, Abel Vesa
Replacing with macros all the clk based API helpers we reduce the code
duplication. The end goal is to get rid of all these macros when there
will be no more users of the clk based API, that is, when all the i.MX
clock provider drivers will be switched completely to the clk_hw based
API.
This is another step in moving away from the non clk_hw based API usage
throughout the i.MX clock drivers. The reason for doing that is to
have a clear split between the clock provider and the clock consumer API.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---
drivers/clk/imx/clk.h | 39 ++++++++++++---------------------------
1 file changed, 12 insertions(+), 27 deletions(-)
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index 9330632..3ed17a1 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -70,12 +70,24 @@ extern struct imx_pll14xx_clk imx_1443x_pll;
#define imx_clk_gate_exclusive(name, parent, reg, shift, exclusive_mask) \
to_clk(imx_clk_hw_gate_exclusive(name, parent, reg, shift, exclusive_mask))
+#define imx_clk_fixed(name, rate) \
+ to_clk(imx_clk_hw_fixed(name, rate))
+
#define imx_clk_fixed_factor(name, parent, mult, div) \
to_clk(imx_clk_hw_fixed_factor(name, parent, mult, div))
+#define imx_clk_divider(name, parent, reg, shift, width) \
+ to_clk(imx_clk_hw_divider(name, parent, reg, shift, width))
+
#define imx_clk_divider2(name, parent, reg, shift, width) \
to_clk(imx_clk_hw_divider2(name, parent, reg, shift, width))
+#define imx_clk_divider_flags(name, parent, reg, shift, width, flags) \
+ to_clk(imx_clk_hw_divider_flags(name, parent, reg, shift, width, flags))
+
+#define imx_clk_gate(name, parent, reg, shift) \
+ to_clk(imx_clk_hw_gate(name, parent, reg, shift))
+
#define imx_clk_gate_dis(name, parent, reg, shift) \
to_clk(imx_clk_hw_gate_dis(name, parent, reg, shift))
@@ -205,11 +217,6 @@ static inline struct clk *to_clk(struct clk_hw *hw)
return hw->clk;
}
-static inline struct clk *imx_clk_fixed(const char *name, int rate)
-{
- return clk_register_fixed_rate(NULL, name, NULL, 0, rate);
-}
-
static inline struct clk_hw *imx_clk_hw_fixed(const char *name, int rate)
{
return clk_hw_register_fixed_rate(NULL, name, NULL, 0, rate);
@@ -231,13 +238,6 @@ static inline struct clk_hw *imx_clk_hw_fixed_factor(const char *name,
CLK_SET_RATE_PARENT, mult, div);
}
-static inline struct clk *imx_clk_divider(const char *name, const char *parent,
- void __iomem *reg, u8 shift, u8 width)
-{
- return clk_register_divider(NULL, name, parent, CLK_SET_RATE_PARENT,
- reg, shift, width, 0, &imx_ccm_lock);
-}
-
static inline struct clk_hw *imx_clk_hw_divider(const char *name,
const char *parent,
void __iomem *reg, u8 shift,
@@ -247,14 +247,6 @@ static inline struct clk_hw *imx_clk_hw_divider(const char *name,
reg, shift, width, 0, &imx_ccm_lock);
}
-static inline struct clk *imx_clk_divider_flags(const char *name,
- const char *parent, void __iomem *reg, u8 shift, u8 width,
- unsigned long flags)
-{
- return clk_register_divider(NULL, name, parent, flags,
- reg, shift, width, 0, &imx_ccm_lock);
-}
-
static inline struct clk_hw *imx_clk_hw_divider_flags(const char *name,
const char *parent,
void __iomem *reg, u8 shift,
@@ -281,13 +273,6 @@ static inline struct clk *imx_clk_divider2_flags(const char *name,
reg, shift, width, 0, &imx_ccm_lock);
}
-static inline struct clk *imx_clk_gate(const char *name, const char *parent,
- void __iomem *reg, u8 shift)
-{
- return clk_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
- shift, 0, &imx_ccm_lock);
-}
-
static inline struct clk_hw *imx_clk_hw_gate_flags(const char *name, const char *parent,
void __iomem *reg, u8 shift, unsigned long flags)
{
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 05/11] clk: imx: pllv2: Switch to clk_hw based API
2019-11-22 10:48 [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Abel Vesa
` (3 preceding siblings ...)
2019-11-22 10:48 ` [PATCH v2 03/11] clk: imx: Replace all the clk based helpers with macros Abel Vesa
@ 2019-11-22 10:48 ` Abel Vesa
2019-11-22 10:48 ` [PATCH v2 06/11] clk: imx: imx7ulp composite: Rename to show is clk_hw based Abel Vesa
` (6 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Abel Vesa @ 2019-11-22 10:48 UTC (permalink / raw)
To: Aisheng Dong, Shawn Guo, Leonard Crestez, Stephen Boyd,
Sascha Hauer, Jacky Bai
Cc: Peng Fan, dl-linux-imx, linux-clk, linux-arm-kernel,
Linux Kernel Mailing List, Abel Vesa
Switch the imx_clk_pllv2 register function to clk_hw based API, rename
accordingly and add a macro for clk based legacy. This allows us to
move closer to a clear split between consumer and provider clk APIs.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---
drivers/clk/imx/clk-pllv2.c | 14 +++++++++-----
drivers/clk/imx/clk.h | 5 ++++-
2 files changed, 13 insertions(+), 6 deletions(-)
diff --git a/drivers/clk/imx/clk-pllv2.c b/drivers/clk/imx/clk-pllv2.c
index eeba3cb..ff17f06 100644
--- a/drivers/clk/imx/clk-pllv2.c
+++ b/drivers/clk/imx/clk-pllv2.c
@@ -239,12 +239,13 @@ static const struct clk_ops clk_pllv2_ops = {
.set_rate = clk_pllv2_set_rate,
};
-struct clk *imx_clk_pllv2(const char *name, const char *parent,
+struct clk_hw *imx_clk_hw_pllv2(const char *name, const char *parent,
void __iomem *base)
{
struct clk_pllv2 *pll;
- struct clk *clk;
+ struct clk_hw *hw;
struct clk_init_data init;
+ int ret;
pll = kzalloc(sizeof(*pll), GFP_KERNEL);
if (!pll)
@@ -259,10 +260,13 @@ struct clk *imx_clk_pllv2(const char *name, const char *parent,
init.num_parents = 1;
pll->hw.init = &init;
+ hw = &pll->hw;
- clk = clk_register(NULL, &pll->hw);
- if (IS_ERR(clk))
+ ret = clk_hw_register(NULL, hw);
+ if (ret) {
kfree(pll);
+ return ERR_PTR(ret);
+ }
- return clk;
+ return hw;
}
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index bd6a592..331f5ab 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -112,13 +112,16 @@ extern struct imx_pll14xx_clk imx_1443x_pll;
#define imx_clk_pllv1(type, name, parent, base) \
to_clk(imx_clk_hw_pllv1(type, name, parent, base))
+#define imx_clk_pllv2(name, parent, base) \
+ to_clk(imx_clk_hw_pllv2(name, parent, base))
+
struct clk *imx_clk_pll14xx(const char *name, const char *parent_name,
void __iomem *base, const struct imx_pll14xx_clk *pll_clk);
struct clk_hw *imx_clk_hw_pllv1(enum imx_pllv1_type type, const char *name,
const char *parent, void __iomem *base);
-struct clk *imx_clk_pllv2(const char *name, const char *parent,
+struct clk_hw *imx_clk_hw_pllv2(const char *name, const char *parent,
void __iomem *base);
struct clk *imx_clk_frac_pll(const char *name, const char *parent_name,
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 06/11] clk: imx: imx7ulp composite: Rename to show is clk_hw based
2019-11-22 10:48 [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Abel Vesa
` (4 preceding siblings ...)
2019-11-22 10:48 ` [PATCH v2 05/11] clk: imx: pllv2: Switch to clk_hw based API Abel Vesa
@ 2019-11-22 10:48 ` Abel Vesa
2019-11-22 10:48 ` [PATCH v2 07/11] clk: imx: Rename sccg and frac pll register to suggest clk_hw Abel Vesa
` (5 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Abel Vesa @ 2019-11-22 10:48 UTC (permalink / raw)
To: Aisheng Dong, Shawn Guo, Leonard Crestez, Stephen Boyd,
Sascha Hauer, Jacky Bai
Cc: Peng Fan, dl-linux-imx, linux-clk, linux-arm-kernel,
Linux Kernel Mailing List, Abel Vesa
Renaming the imx7ulp_clk_composite register function to
imx7ulp_clk_hw_composite to show it is clk_hw based.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---
drivers/clk/imx/clk-composite-7ulp.c | 2 +-
drivers/clk/imx/clk-imx7ulp.c | 52 ++++++++++++++++++------------------
drivers/clk/imx/clk.h | 2 +-
3 files changed, 28 insertions(+), 28 deletions(-)
diff --git a/drivers/clk/imx/clk-composite-7ulp.c b/drivers/clk/imx/clk-composite-7ulp.c
index 060f860..b9efcc8 100644
--- a/drivers/clk/imx/clk-composite-7ulp.c
+++ b/drivers/clk/imx/clk-composite-7ulp.c
@@ -21,7 +21,7 @@
#define PCG_PCD_WIDTH 3
#define PCG_PCD_MASK 0x7
-struct clk_hw *imx7ulp_clk_composite(const char *name,
+struct clk_hw *imx7ulp_clk_hw_composite(const char *name,
const char * const *parent_names,
int num_parents, bool mux_present,
bool rate_present, bool gate_present,
diff --git a/drivers/clk/imx/clk-imx7ulp.c b/drivers/clk/imx/clk-imx7ulp.c
index 3fdf3d4..64b79a8 100644
--- a/drivers/clk/imx/clk-imx7ulp.c
+++ b/drivers/clk/imx/clk-imx7ulp.c
@@ -165,23 +165,23 @@ static void __init imx7ulp_clk_pcc2_init(struct device_node *np)
clks[IMX7ULP_CLK_RGPIO2P1] = imx_clk_hw_gate("rgpio2p1", "nic1_bus_clk", base + 0x3c, 30);
clks[IMX7ULP_CLK_DMA_MUX1] = imx_clk_hw_gate("dma_mux1", "nic1_bus_clk", base + 0x84, 30);
clks[IMX7ULP_CLK_CAAM] = imx_clk_hw_gate("caam", "nic1_clk", base + 0x90, 30);
- clks[IMX7ULP_CLK_LPTPM4] = imx7ulp_clk_composite("lptpm4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x94);
- clks[IMX7ULP_CLK_LPTPM5] = imx7ulp_clk_composite("lptpm5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x98);
- clks[IMX7ULP_CLK_LPIT1] = imx7ulp_clk_composite("lpit1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x9c);
- clks[IMX7ULP_CLK_LPSPI2] = imx7ulp_clk_composite("lpspi2", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xa4);
- clks[IMX7ULP_CLK_LPSPI3] = imx7ulp_clk_composite("lpspi3", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xa8);
- clks[IMX7ULP_CLK_LPI2C4] = imx7ulp_clk_composite("lpi2c4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xac);
- clks[IMX7ULP_CLK_LPI2C5] = imx7ulp_clk_composite("lpi2c5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb0);
- clks[IMX7ULP_CLK_LPUART4] = imx7ulp_clk_composite("lpuart4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb4);
- clks[IMX7ULP_CLK_LPUART5] = imx7ulp_clk_composite("lpuart5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb8);
- clks[IMX7ULP_CLK_FLEXIO1] = imx7ulp_clk_composite("flexio1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xc4);
- clks[IMX7ULP_CLK_USB0] = imx7ulp_clk_composite("usb0", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xcc);
- clks[IMX7ULP_CLK_USB1] = imx7ulp_clk_composite("usb1", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xd0);
+ clks[IMX7ULP_CLK_LPTPM4] = imx7ulp_clk_hw_composite("lptpm4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x94);
+ clks[IMX7ULP_CLK_LPTPM5] = imx7ulp_clk_hw_composite("lptpm5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x98);
+ clks[IMX7ULP_CLK_LPIT1] = imx7ulp_clk_hw_composite("lpit1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x9c);
+ clks[IMX7ULP_CLK_LPSPI2] = imx7ulp_clk_hw_composite("lpspi2", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xa4);
+ clks[IMX7ULP_CLK_LPSPI3] = imx7ulp_clk_hw_composite("lpspi3", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xa8);
+ clks[IMX7ULP_CLK_LPI2C4] = imx7ulp_clk_hw_composite("lpi2c4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xac);
+ clks[IMX7ULP_CLK_LPI2C5] = imx7ulp_clk_hw_composite("lpi2c5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb0);
+ clks[IMX7ULP_CLK_LPUART4] = imx7ulp_clk_hw_composite("lpuart4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb4);
+ clks[IMX7ULP_CLK_LPUART5] = imx7ulp_clk_hw_composite("lpuart5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb8);
+ clks[IMX7ULP_CLK_FLEXIO1] = imx7ulp_clk_hw_composite("flexio1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xc4);
+ clks[IMX7ULP_CLK_USB0] = imx7ulp_clk_hw_composite("usb0", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xcc);
+ clks[IMX7ULP_CLK_USB1] = imx7ulp_clk_hw_composite("usb1", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xd0);
clks[IMX7ULP_CLK_USB_PHY] = imx_clk_hw_gate("usb_phy", "nic1_bus_clk", base + 0xd4, 30);
- clks[IMX7ULP_CLK_USDHC0] = imx7ulp_clk_composite("usdhc0", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xdc);
- clks[IMX7ULP_CLK_USDHC1] = imx7ulp_clk_composite("usdhc1", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xe0);
- clks[IMX7ULP_CLK_WDG1] = imx7ulp_clk_composite("wdg1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0xf4);
- clks[IMX7ULP_CLK_WDG2] = imx7ulp_clk_composite("sdg2", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0x10c);
+ clks[IMX7ULP_CLK_USDHC0] = imx7ulp_clk_hw_composite("usdhc0", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xdc);
+ clks[IMX7ULP_CLK_USDHC1] = imx7ulp_clk_hw_composite("usdhc1", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xe0);
+ clks[IMX7ULP_CLK_WDG1] = imx7ulp_clk_hw_composite("wdg1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0xf4);
+ clks[IMX7ULP_CLK_WDG2] = imx7ulp_clk_hw_composite("sdg2", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0x10c);
imx_check_clk_hws(clks, clk_data->num);
@@ -216,17 +216,17 @@ static void __init imx7ulp_clk_pcc3_init(struct device_node *np)
base = of_iomap(np, 0);
WARN_ON(!base);
- clks[IMX7ULP_CLK_LPTPM6] = imx7ulp_clk_composite("lptpm6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x84);
- clks[IMX7ULP_CLK_LPTPM7] = imx7ulp_clk_composite("lptpm7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x88);
+ clks[IMX7ULP_CLK_LPTPM6] = imx7ulp_clk_hw_composite("lptpm6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x84);
+ clks[IMX7ULP_CLK_LPTPM7] = imx7ulp_clk_hw_composite("lptpm7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x88);
clks[IMX7ULP_CLK_MMDC] = clk_hw_register_gate(NULL, "mmdc", "nic1_clk", CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
base + 0xac, 30, 0, &imx_ccm_lock);
- clks[IMX7ULP_CLK_LPI2C6] = imx7ulp_clk_composite("lpi2c6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x90);
- clks[IMX7ULP_CLK_LPI2C7] = imx7ulp_clk_composite("lpi2c7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x94);
- clks[IMX7ULP_CLK_LPUART6] = imx7ulp_clk_composite("lpuart6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x98);
- clks[IMX7ULP_CLK_LPUART7] = imx7ulp_clk_composite("lpuart7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x9c);
- clks[IMX7ULP_CLK_DSI] = imx7ulp_clk_composite("dsi", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0xa4);
- clks[IMX7ULP_CLK_LCDIF] = imx7ulp_clk_composite("lcdif", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xa8);
+ clks[IMX7ULP_CLK_LPI2C6] = imx7ulp_clk_hw_composite("lpi2c6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x90);
+ clks[IMX7ULP_CLK_LPI2C7] = imx7ulp_clk_hw_composite("lpi2c7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x94);
+ clks[IMX7ULP_CLK_LPUART6] = imx7ulp_clk_hw_composite("lpuart6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x98);
+ clks[IMX7ULP_CLK_LPUART7] = imx7ulp_clk_hw_composite("lpuart7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x9c);
+ clks[IMX7ULP_CLK_DSI] = imx7ulp_clk_hw_composite("dsi", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0xa4);
+ clks[IMX7ULP_CLK_LCDIF] = imx7ulp_clk_hw_composite("lcdif", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xa8);
clks[IMX7ULP_CLK_VIU] = imx_clk_hw_gate("viu", "nic1_clk", base + 0xa0, 30);
clks[IMX7ULP_CLK_PCTLC] = imx_clk_hw_gate("pctlc", "nic1_bus_clk", base + 0xb8, 30);
@@ -234,8 +234,8 @@ static void __init imx7ulp_clk_pcc3_init(struct device_node *np)
clks[IMX7ULP_CLK_PCTLE] = imx_clk_hw_gate("pctle", "nic1_bus_clk", base + 0xc0, 30);
clks[IMX7ULP_CLK_PCTLF] = imx_clk_hw_gate("pctlf", "nic1_bus_clk", base + 0xc4, 30);
- clks[IMX7ULP_CLK_GPU3D] = imx7ulp_clk_composite("gpu3d", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, false, true, base + 0x140);
- clks[IMX7ULP_CLK_GPU2D] = imx7ulp_clk_composite("gpu2d", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, false, true, base + 0x144);
+ clks[IMX7ULP_CLK_GPU3D] = imx7ulp_clk_hw_composite("gpu3d", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, false, true, base + 0x140);
+ clks[IMX7ULP_CLK_GPU2D] = imx7ulp_clk_hw_composite("gpu2d", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, false, true, base + 0x144);
imx_check_clk_hws(clks, clk_data->num);
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index 331f5ab..d6c65f0 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -202,7 +202,7 @@ struct clk_hw *imx_clk_hw_busy_mux(const char *name, void __iomem *reg, u8 shift
u8 width, void __iomem *busy_reg, u8 busy_shift,
const char * const *parent_names, int num_parents);
-struct clk_hw *imx7ulp_clk_composite(const char *name,
+struct clk_hw *imx7ulp_clk_hw_composite(const char *name,
const char * const *parent_names,
int num_parents, bool mux_present,
bool rate_present, bool gate_present,
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 07/11] clk: imx: Rename sccg and frac pll register to suggest clk_hw
2019-11-22 10:48 [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Abel Vesa
` (5 preceding siblings ...)
2019-11-22 10:48 ` [PATCH v2 06/11] clk: imx: imx7ulp composite: Rename to show is clk_hw based Abel Vesa
@ 2019-11-22 10:48 ` Abel Vesa
2019-11-22 10:48 ` [PATCH v2 08/11] clk: imx: Rename the imx_clk_pllv4 to imply it's clk_hw based Abel Vesa
` (4 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Abel Vesa @ 2019-11-22 10:48 UTC (permalink / raw)
To: Aisheng Dong, Shawn Guo, Leonard Crestez, Stephen Boyd,
Sascha Hauer, Jacky Bai
Cc: Peng Fan, dl-linux-imx, linux-clk, linux-arm-kernel,
Linux Kernel Mailing List, Abel Vesa
Renaming the imx_clk_frac_pll and imx_clk_sccg_pll register functions to
imx_clk_hw_frac_pll, respectively imx_clk_hw_sccg_pll to be more obvious
that they are clk_hw based.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---
drivers/clk/imx/clk-frac-pll.c | 7 ++++---
drivers/clk/imx/clk-sscg-pll.c | 4 ++--
drivers/clk/imx/clk.h | 12 ++++++++++--
3 files changed, 16 insertions(+), 7 deletions(-)
diff --git a/drivers/clk/imx/clk-frac-pll.c b/drivers/clk/imx/clk-frac-pll.c
index fece503..101e0a3 100644
--- a/drivers/clk/imx/clk-frac-pll.c
+++ b/drivers/clk/imx/clk-frac-pll.c
@@ -201,8 +201,9 @@ static const struct clk_ops clk_frac_pll_ops = {
.set_rate = clk_pll_set_rate,
};
-struct clk *imx_clk_frac_pll(const char *name, const char *parent_name,
- void __iomem *base)
+struct clk_hw *imx_clk_hw_frac_pll(const char *name,
+ const char *parent_name,
+ void __iomem *base)
{
struct clk_init_data init;
struct clk_frac_pll *pll;
@@ -230,5 +231,5 @@ struct clk *imx_clk_frac_pll(const char *name, const char *parent_name,
return ERR_PTR(ret);
}
- return hw->clk;
+ return hw;
}
diff --git a/drivers/clk/imx/clk-sscg-pll.c b/drivers/clk/imx/clk-sscg-pll.c
index 0669e17..acd1b90 100644
--- a/drivers/clk/imx/clk-sscg-pll.c
+++ b/drivers/clk/imx/clk-sscg-pll.c
@@ -506,7 +506,7 @@ static const struct clk_ops clk_sscg_pll_ops = {
.determine_rate = clk_sscg_pll_determine_rate,
};
-struct clk *imx_clk_sscg_pll(const char *name,
+struct clk_hw *imx_clk_hw_sscg_pll(const char *name,
const char * const *parent_names,
u8 num_parents,
u8 parent, u8 bypass1, u8 bypass2,
@@ -545,5 +545,5 @@ struct clk *imx_clk_sscg_pll(const char *name,
return ERR_PTR(ret);
}
- return hw->clk;
+ return hw;
}
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index d6c65f0..a7d86df 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -115,6 +115,14 @@ extern struct imx_pll14xx_clk imx_1443x_pll;
#define imx_clk_pllv2(name, parent, base) \
to_clk(imx_clk_hw_pllv2(name, parent, base))
+#define imx_clk_frac_pll(name, parent_name, base) \
+ to_clk(imx_clk_hw_frac_pll(name, parent_name, base))
+
+#define imx_clk_sscg_pll(name, parent_names, num_parents, parent,\
+ bypass1, bypass2, base, flags) \
+ to_clk(imx_clk_hw_sscg_pll(name, parent_names, num_parents, parent,\
+ bypass1, bypass2, base, flags))
+
struct clk *imx_clk_pll14xx(const char *name, const char *parent_name,
void __iomem *base, const struct imx_pll14xx_clk *pll_clk);
@@ -124,10 +132,10 @@ struct clk_hw *imx_clk_hw_pllv1(enum imx_pllv1_type type, const char *name,
struct clk_hw *imx_clk_hw_pllv2(const char *name, const char *parent,
void __iomem *base);
-struct clk *imx_clk_frac_pll(const char *name, const char *parent_name,
+struct clk_hw *imx_clk_hw_frac_pll(const char *name, const char *parent_name,
void __iomem *base);
-struct clk *imx_clk_sscg_pll(const char *name,
+struct clk_hw *imx_clk_hw_sscg_pll(const char *name,
const char * const *parent_names,
u8 num_parents,
u8 parent, u8 bypass1, u8 bypass2,
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 08/11] clk: imx: Rename the imx_clk_pllv4 to imply it's clk_hw based
2019-11-22 10:48 [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Abel Vesa
` (6 preceding siblings ...)
2019-11-22 10:48 ` [PATCH v2 07/11] clk: imx: Rename sccg and frac pll register to suggest clk_hw Abel Vesa
@ 2019-11-22 10:48 ` Abel Vesa
2019-11-22 10:48 ` [PATCH v2 09/11] clk: imx: Rename the imx_clk_pfdv2 " Abel Vesa
` (3 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Abel Vesa @ 2019-11-22 10:48 UTC (permalink / raw)
To: Aisheng Dong, Shawn Guo, Leonard Crestez, Stephen Boyd,
Sascha Hauer, Jacky Bai
Cc: Peng Fan, dl-linux-imx, linux-clk, linux-arm-kernel,
Linux Kernel Mailing List, Abel Vesa
Renaming the imx_clk_pllv4 register function to imx_clk_hw_pllv4 to be
more obvious it is clk_hw based.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---
drivers/clk/imx/clk-imx7ulp.c | 4 ++--
drivers/clk/imx/clk-pllv4.c | 2 +-
drivers/clk/imx/clk.h | 2 +-
3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/clk/imx/clk-imx7ulp.c b/drivers/clk/imx/clk-imx7ulp.c
index 64b79a8..afd2c2c 100644
--- a/drivers/clk/imx/clk-imx7ulp.c
+++ b/drivers/clk/imx/clk-imx7ulp.c
@@ -90,8 +90,8 @@ static void __init imx7ulp_clk_scg1_init(struct device_node *np)
clks[IMX7ULP_CLK_SPLL_PRE_DIV] = imx_clk_hw_divider_flags("spll_pre_div", "spll_pre_sel", base + 0x608, 8, 3, CLK_SET_RATE_GATE);
/* name parent_name base */
- clks[IMX7ULP_CLK_APLL] = imx_clk_pllv4("apll", "apll_pre_div", base + 0x500);
- clks[IMX7ULP_CLK_SPLL] = imx_clk_pllv4("spll", "spll_pre_div", base + 0x600);
+ clks[IMX7ULP_CLK_APLL] = imx_clk_hw_pllv4("apll", "apll_pre_div", base + 0x500);
+ clks[IMX7ULP_CLK_SPLL] = imx_clk_hw_pllv4("spll", "spll_pre_div", base + 0x600);
/* APLL PFDs */
clks[IMX7ULP_CLK_APLL_PFD0] = imx_clk_pfdv2("apll_pfd0", "apll", base + 0x50c, 0);
diff --git a/drivers/clk/imx/clk-pllv4.c b/drivers/clk/imx/clk-pllv4.c
index 8155b12..f51a800 100644
--- a/drivers/clk/imx/clk-pllv4.c
+++ b/drivers/clk/imx/clk-pllv4.c
@@ -206,7 +206,7 @@ static const struct clk_ops clk_pllv4_ops = {
.is_enabled = clk_pllv4_is_enabled,
};
-struct clk_hw *imx_clk_pllv4(const char *name, const char *parent_name,
+struct clk_hw *imx_clk_hw_pllv4(const char *name, const char *parent_name,
void __iomem *base)
{
struct clk_pllv4 *pll;
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index a7d86df..5ca4615 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -175,7 +175,7 @@ struct clk_hw *imx_clk_hw_pllv3(enum imx_pllv3_type type, const char *name,
.kdiv = (_k), \
}
-struct clk_hw *imx_clk_pllv4(const char *name, const char *parent_name,
+struct clk_hw *imx_clk_hw_pllv4(const char *name, const char *parent_name,
void __iomem *base);
struct clk_hw *clk_hw_register_gate2(struct device *dev, const char *name,
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 09/11] clk: imx: Rename the imx_clk_pfdv2 to imply it's clk_hw based
2019-11-22 10:48 [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Abel Vesa
` (7 preceding siblings ...)
2019-11-22 10:48 ` [PATCH v2 08/11] clk: imx: Rename the imx_clk_pllv4 to imply it's clk_hw based Abel Vesa
@ 2019-11-22 10:48 ` Abel Vesa
2019-11-22 10:48 ` [PATCH v2 10/11] clk: imx: Rename the imx_clk_divider_gate " Abel Vesa
` (2 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Abel Vesa @ 2019-11-22 10:48 UTC (permalink / raw)
To: Aisheng Dong, Shawn Guo, Leonard Crestez, Stephen Boyd,
Sascha Hauer, Jacky Bai
Cc: Peng Fan, dl-linux-imx, linux-clk, linux-arm-kernel,
Linux Kernel Mailing List, Abel Vesa
Renaming the imx_clk_pfdv2 register function to imx_clk_hw_pfdv2 to be
more obvious it is clk_hw based.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---
drivers/clk/imx/clk-imx7ulp.c | 16 ++++++++--------
drivers/clk/imx/clk-pfdv2.c | 2 +-
drivers/clk/imx/clk.h | 2 +-
3 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/clk/imx/clk-imx7ulp.c b/drivers/clk/imx/clk-imx7ulp.c
index afd2c2c..314f9c2 100644
--- a/drivers/clk/imx/clk-imx7ulp.c
+++ b/drivers/clk/imx/clk-imx7ulp.c
@@ -94,16 +94,16 @@ static void __init imx7ulp_clk_scg1_init(struct device_node *np)
clks[IMX7ULP_CLK_SPLL] = imx_clk_hw_pllv4("spll", "spll_pre_div", base + 0x600);
/* APLL PFDs */
- clks[IMX7ULP_CLK_APLL_PFD0] = imx_clk_pfdv2("apll_pfd0", "apll", base + 0x50c, 0);
- clks[IMX7ULP_CLK_APLL_PFD1] = imx_clk_pfdv2("apll_pfd1", "apll", base + 0x50c, 1);
- clks[IMX7ULP_CLK_APLL_PFD2] = imx_clk_pfdv2("apll_pfd2", "apll", base + 0x50c, 2);
- clks[IMX7ULP_CLK_APLL_PFD3] = imx_clk_pfdv2("apll_pfd3", "apll", base + 0x50c, 3);
+ clks[IMX7ULP_CLK_APLL_PFD0] = imx_clk_hw_pfdv2("apll_pfd0", "apll", base + 0x50c, 0);
+ clks[IMX7ULP_CLK_APLL_PFD1] = imx_clk_hw_pfdv2("apll_pfd1", "apll", base + 0x50c, 1);
+ clks[IMX7ULP_CLK_APLL_PFD2] = imx_clk_hw_pfdv2("apll_pfd2", "apll", base + 0x50c, 2);
+ clks[IMX7ULP_CLK_APLL_PFD3] = imx_clk_hw_pfdv2("apll_pfd3", "apll", base + 0x50c, 3);
/* SPLL PFDs */
- clks[IMX7ULP_CLK_SPLL_PFD0] = imx_clk_pfdv2("spll_pfd0", "spll", base + 0x60C, 0);
- clks[IMX7ULP_CLK_SPLL_PFD1] = imx_clk_pfdv2("spll_pfd1", "spll", base + 0x60C, 1);
- clks[IMX7ULP_CLK_SPLL_PFD2] = imx_clk_pfdv2("spll_pfd2", "spll", base + 0x60C, 2);
- clks[IMX7ULP_CLK_SPLL_PFD3] = imx_clk_pfdv2("spll_pfd3", "spll", base + 0x60C, 3);
+ clks[IMX7ULP_CLK_SPLL_PFD0] = imx_clk_hw_pfdv2("spll_pfd0", "spll", base + 0x60C, 0);
+ clks[IMX7ULP_CLK_SPLL_PFD1] = imx_clk_hw_pfdv2("spll_pfd1", "spll", base + 0x60C, 1);
+ clks[IMX7ULP_CLK_SPLL_PFD2] = imx_clk_hw_pfdv2("spll_pfd2", "spll", base + 0x60C, 2);
+ clks[IMX7ULP_CLK_SPLL_PFD3] = imx_clk_hw_pfdv2("spll_pfd3", "spll", base + 0x60C, 3);
/* PLL Mux */
clks[IMX7ULP_CLK_APLL_PFD_SEL] = imx_clk_hw_mux_flags("apll_pfd_sel", base + 0x508, 14, 2, apll_pfd_sels, ARRAY_SIZE(apll_pfd_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);
diff --git a/drivers/clk/imx/clk-pfdv2.c b/drivers/clk/imx/clk-pfdv2.c
index a03bbed..de93ce7 100644
--- a/drivers/clk/imx/clk-pfdv2.c
+++ b/drivers/clk/imx/clk-pfdv2.c
@@ -166,7 +166,7 @@ static const struct clk_ops clk_pfdv2_ops = {
.is_enabled = clk_pfdv2_is_enabled,
};
-struct clk_hw *imx_clk_pfdv2(const char *name, const char *parent_name,
+struct clk_hw *imx_clk_hw_pfdv2(const char *name, const char *parent_name,
void __iomem *reg, u8 idx)
{
struct clk_init_data init;
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index 5ca4615..c9f626e 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -199,7 +199,7 @@ struct clk_hw *imx_clk_hw_gate_exclusive(const char *name, const char *parent,
struct clk_hw *imx_clk_hw_pfd(const char *name, const char *parent_name,
void __iomem *reg, u8 idx);
-struct clk_hw *imx_clk_pfdv2(const char *name, const char *parent_name,
+struct clk_hw *imx_clk_hw_pfdv2(const char *name, const char *parent_name,
void __iomem *reg, u8 idx);
struct clk_hw *imx_clk_hw_busy_divider(const char *name, const char *parent_name,
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 10/11] clk: imx: Rename the imx_clk_divider_gate to imply it's clk_hw based
2019-11-22 10:48 [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Abel Vesa
` (8 preceding siblings ...)
2019-11-22 10:48 ` [PATCH v2 09/11] clk: imx: Rename the imx_clk_pfdv2 " Abel Vesa
@ 2019-11-22 10:48 ` Abel Vesa
2019-11-22 10:48 ` [PATCH v2 11/11] clk: imx7up: Rename the clks to hws Abel Vesa
2019-12-09 3:39 ` [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Shawn Guo
11 siblings, 0 replies; 15+ messages in thread
From: Abel Vesa @ 2019-11-22 10:48 UTC (permalink / raw)
To: Aisheng Dong, Shawn Guo, Leonard Crestez, Stephen Boyd,
Sascha Hauer, Jacky Bai
Cc: Peng Fan, dl-linux-imx, linux-clk, linux-arm-kernel,
Linux Kernel Mailing List, Abel Vesa
Renaming the imx_clk_divider_gate register function to imx_clk_hw_divider_gate
to be more obvious it is clk_hw based.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---
drivers/clk/imx/clk-divider-gate.c | 2 +-
drivers/clk/imx/clk-imx7ulp.c | 8 ++++----
drivers/clk/imx/clk.h | 2 +-
3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/clk/imx/clk-divider-gate.c b/drivers/clk/imx/clk-divider-gate.c
index 2a8352a..905aee5 100644
--- a/drivers/clk/imx/clk-divider-gate.c
+++ b/drivers/clk/imx/clk-divider-gate.c
@@ -173,7 +173,7 @@ static const struct clk_ops clk_divider_gate_ops = {
* default as our HW is. Besides that it supports only CLK_DIVIDER_READ_ONLY
* flag which can be specified by user flexibly.
*/
-struct clk_hw *imx_clk_divider_gate(const char *name, const char *parent_name,
+struct clk_hw *imx_clk_hw_divider_gate(const char *name, const char *parent_name,
unsigned long flags, void __iomem *reg,
u8 shift, u8 width, u8 clk_divider_flags,
const struct clk_div_table *table,
diff --git a/drivers/clk/imx/clk-imx7ulp.c b/drivers/clk/imx/clk-imx7ulp.c
index 314f9c2..8657e5f 100644
--- a/drivers/clk/imx/clk-imx7ulp.c
+++ b/drivers/clk/imx/clk-imx7ulp.c
@@ -111,7 +111,7 @@ static void __init imx7ulp_clk_scg1_init(struct device_node *np)
clks[IMX7ULP_CLK_APLL_SEL] = imx_clk_hw_mux_flags("apll_sel", base + 0x508, 1, 1, apll_sels, ARRAY_SIZE(apll_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);
clks[IMX7ULP_CLK_SPLL_SEL] = imx_clk_hw_mux_flags("spll_sel", base + 0x608, 1, 1, spll_sels, ARRAY_SIZE(spll_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);
- clks[IMX7ULP_CLK_SPLL_BUS_CLK] = imx_clk_divider_gate("spll_bus_clk", "spll_sel", CLK_SET_RATE_GATE, base + 0x604, 8, 3, 0, ulp_div_table, &imx_ccm_lock);
+ clks[IMX7ULP_CLK_SPLL_BUS_CLK] = imx_clk_hw_divider_gate("spll_bus_clk", "spll_sel", CLK_SET_RATE_GATE, base + 0x604, 8, 3, 0, ulp_div_table, &imx_ccm_lock);
/* scs/ddr/nic select different clock source requires that clock to be enabled first */
clks[IMX7ULP_CLK_SYS_SEL] = imx_clk_hw_mux2("scs_sel", base + 0x14, 24, 4, scs_sels, ARRAY_SIZE(scs_sels));
@@ -122,7 +122,7 @@ static void __init imx7ulp_clk_scg1_init(struct device_node *np)
clks[IMX7ULP_CLK_CORE_DIV] = imx_clk_hw_divider_flags("divcore", "scs_sel", base + 0x14, 16, 4, CLK_SET_RATE_PARENT);
clks[IMX7ULP_CLK_HSRUN_CORE_DIV] = imx_clk_hw_divider_flags("hsrun_divcore", "hsrun_scs_sel", base + 0x1c, 16, 4, CLK_SET_RATE_PARENT);
- clks[IMX7ULP_CLK_DDR_DIV] = imx_clk_divider_gate("ddr_clk", "ddr_sel", CLK_SET_RATE_PARENT | CLK_IS_CRITICAL, base + 0x30, 0, 3,
+ clks[IMX7ULP_CLK_DDR_DIV] = imx_clk_hw_divider_gate("ddr_clk", "ddr_sel", CLK_SET_RATE_PARENT | CLK_IS_CRITICAL, base + 0x30, 0, 3,
0, ulp_div_table, &imx_ccm_lock);
clks[IMX7ULP_CLK_NIC0_DIV] = imx_clk_hw_divider_flags("nic0_clk", "nic_sel", base + 0x40, 24, 4, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
@@ -131,9 +131,9 @@ static void __init imx7ulp_clk_scg1_init(struct device_node *np)
clks[IMX7ULP_CLK_GPU_DIV] = imx_clk_hw_divider("gpu_clk", "nic0_clk", base + 0x40, 20, 4);
- clks[IMX7ULP_CLK_SOSC_BUS_CLK] = imx_clk_divider_gate("sosc_bus_clk", "sosc", 0, base + 0x104, 8, 3,
+ clks[IMX7ULP_CLK_SOSC_BUS_CLK] = imx_clk_hw_divider_gate("sosc_bus_clk", "sosc", 0, base + 0x104, 8, 3,
CLK_DIVIDER_READ_ONLY, ulp_div_table, &imx_ccm_lock);
- clks[IMX7ULP_CLK_FIRC_BUS_CLK] = imx_clk_divider_gate("firc_bus_clk", "firc", 0, base + 0x304, 8, 3,
+ clks[IMX7ULP_CLK_FIRC_BUS_CLK] = imx_clk_hw_divider_gate("firc_bus_clk", "firc", 0, base + 0x304, 8, 3,
CLK_DIVIDER_READ_ONLY, ulp_div_table, &imx_ccm_lock);
imx_check_clk_hws(clks, clk_data->num);
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index c9f626e..a1cb2d5 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -468,7 +468,7 @@ struct clk *imx8m_clk_composite_flags(const char *name,
#define imx8m_clk_composite_critical(name, parent_names, reg) \
__imx8m_clk_composite(name, parent_names, reg, CLK_IS_CRITICAL)
-struct clk_hw *imx_clk_divider_gate(const char *name, const char *parent_name,
+struct clk_hw *imx_clk_hw_divider_gate(const char *name, const char *parent_name,
unsigned long flags, void __iomem *reg, u8 shift, u8 width,
u8 clk_divider_flags, const struct clk_div_table *table,
spinlock_t *lock);
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 11/11] clk: imx7up: Rename the clks to hws
2019-11-22 10:48 [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Abel Vesa
` (9 preceding siblings ...)
2019-11-22 10:48 ` [PATCH v2 10/11] clk: imx: Rename the imx_clk_divider_gate " Abel Vesa
@ 2019-11-22 10:48 ` Abel Vesa
2019-12-09 3:39 ` [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Shawn Guo
11 siblings, 0 replies; 15+ messages in thread
From: Abel Vesa @ 2019-11-22 10:48 UTC (permalink / raw)
To: Aisheng Dong, Shawn Guo, Leonard Crestez, Stephen Boyd,
Sascha Hauer, Jacky Bai
Cc: Peng Fan, dl-linux-imx, linux-clk, linux-arm-kernel,
Linux Kernel Mailing List, Abel Vesa
This is just to keep in line with the other i.MX clock drivers that are
clk_hw based. Plus, it makes more sense to be called hws since its type is
clk_hw not clk.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---
drivers/clk/imx/clk-imx7ulp.c | 182 +++++++++++++++++++++---------------------
1 file changed, 91 insertions(+), 91 deletions(-)
diff --git a/drivers/clk/imx/clk-imx7ulp.c b/drivers/clk/imx/clk-imx7ulp.c
index 8657e5f..8f67e49 100644
--- a/drivers/clk/imx/clk-imx7ulp.c
+++ b/drivers/clk/imx/clk-imx7ulp.c
@@ -58,7 +58,7 @@ static struct clk **pcc3_uart_clks[ARRAY_SIZE(pcc3_uart_clk_ids) + 1] __initdata
static void __init imx7ulp_clk_scg1_init(struct device_node *np)
{
struct clk_hw_onecell_data *clk_data;
- struct clk_hw **clks;
+ struct clk_hw **hws;
void __iomem *base;
clk_data = kzalloc(struct_size(clk_data, hws, IMX7ULP_CLK_SCG1_END),
@@ -67,76 +67,76 @@ static void __init imx7ulp_clk_scg1_init(struct device_node *np)
return;
clk_data->num = IMX7ULP_CLK_SCG1_END;
- clks = clk_data->hws;
+ hws = clk_data->hws;
- clks[IMX7ULP_CLK_DUMMY] = imx_clk_hw_fixed("dummy", 0);
+ hws[IMX7ULP_CLK_DUMMY] = imx_clk_hw_fixed("dummy", 0);
- clks[IMX7ULP_CLK_ROSC] = imx_obtain_fixed_clk_hw(np, "rosc");
- clks[IMX7ULP_CLK_SOSC] = imx_obtain_fixed_clk_hw(np, "sosc");
- clks[IMX7ULP_CLK_SIRC] = imx_obtain_fixed_clk_hw(np, "sirc");
- clks[IMX7ULP_CLK_FIRC] = imx_obtain_fixed_clk_hw(np, "firc");
- clks[IMX7ULP_CLK_UPLL] = imx_obtain_fixed_clk_hw(np, "upll");
+ hws[IMX7ULP_CLK_ROSC] = imx_obtain_fixed_clk_hw(np, "rosc");
+ hws[IMX7ULP_CLK_SOSC] = imx_obtain_fixed_clk_hw(np, "sosc");
+ hws[IMX7ULP_CLK_SIRC] = imx_obtain_fixed_clk_hw(np, "sirc");
+ hws[IMX7ULP_CLK_FIRC] = imx_obtain_fixed_clk_hw(np, "firc");
+ hws[IMX7ULP_CLK_UPLL] = imx_obtain_fixed_clk_hw(np, "upll");
/* SCG1 */
base = of_iomap(np, 0);
WARN_ON(!base);
/* NOTE: xPLL config can't be changed when xPLL is enabled */
- clks[IMX7ULP_CLK_APLL_PRE_SEL] = imx_clk_hw_mux_flags("apll_pre_sel", base + 0x508, 0, 1, pll_pre_sels, ARRAY_SIZE(pll_pre_sels), CLK_SET_PARENT_GATE);
- clks[IMX7ULP_CLK_SPLL_PRE_SEL] = imx_clk_hw_mux_flags("spll_pre_sel", base + 0x608, 0, 1, pll_pre_sels, ARRAY_SIZE(pll_pre_sels), CLK_SET_PARENT_GATE);
+ hws[IMX7ULP_CLK_APLL_PRE_SEL] = imx_clk_hw_mux_flags("apll_pre_sel", base + 0x508, 0, 1, pll_pre_sels, ARRAY_SIZE(pll_pre_sels), CLK_SET_PARENT_GATE);
+ hws[IMX7ULP_CLK_SPLL_PRE_SEL] = imx_clk_hw_mux_flags("spll_pre_sel", base + 0x608, 0, 1, pll_pre_sels, ARRAY_SIZE(pll_pre_sels), CLK_SET_PARENT_GATE);
/* name parent_name reg shift width flags */
- clks[IMX7ULP_CLK_APLL_PRE_DIV] = imx_clk_hw_divider_flags("apll_pre_div", "apll_pre_sel", base + 0x508, 8, 3, CLK_SET_RATE_GATE);
- clks[IMX7ULP_CLK_SPLL_PRE_DIV] = imx_clk_hw_divider_flags("spll_pre_div", "spll_pre_sel", base + 0x608, 8, 3, CLK_SET_RATE_GATE);
+ hws[IMX7ULP_CLK_APLL_PRE_DIV] = imx_clk_hw_divider_flags("apll_pre_div", "apll_pre_sel", base + 0x508, 8, 3, CLK_SET_RATE_GATE);
+ hws[IMX7ULP_CLK_SPLL_PRE_DIV] = imx_clk_hw_divider_flags("spll_pre_div", "spll_pre_sel", base + 0x608, 8, 3, CLK_SET_RATE_GATE);
/* name parent_name base */
- clks[IMX7ULP_CLK_APLL] = imx_clk_hw_pllv4("apll", "apll_pre_div", base + 0x500);
- clks[IMX7ULP_CLK_SPLL] = imx_clk_hw_pllv4("spll", "spll_pre_div", base + 0x600);
+ hws[IMX7ULP_CLK_APLL] = imx_clk_hw_pllv4("apll", "apll_pre_div", base + 0x500);
+ hws[IMX7ULP_CLK_SPLL] = imx_clk_hw_pllv4("spll", "spll_pre_div", base + 0x600);
/* APLL PFDs */
- clks[IMX7ULP_CLK_APLL_PFD0] = imx_clk_hw_pfdv2("apll_pfd0", "apll", base + 0x50c, 0);
- clks[IMX7ULP_CLK_APLL_PFD1] = imx_clk_hw_pfdv2("apll_pfd1", "apll", base + 0x50c, 1);
- clks[IMX7ULP_CLK_APLL_PFD2] = imx_clk_hw_pfdv2("apll_pfd2", "apll", base + 0x50c, 2);
- clks[IMX7ULP_CLK_APLL_PFD3] = imx_clk_hw_pfdv2("apll_pfd3", "apll", base + 0x50c, 3);
+ hws[IMX7ULP_CLK_APLL_PFD0] = imx_clk_hw_pfdv2("apll_pfd0", "apll", base + 0x50c, 0);
+ hws[IMX7ULP_CLK_APLL_PFD1] = imx_clk_hw_pfdv2("apll_pfd1", "apll", base + 0x50c, 1);
+ hws[IMX7ULP_CLK_APLL_PFD2] = imx_clk_hw_pfdv2("apll_pfd2", "apll", base + 0x50c, 2);
+ hws[IMX7ULP_CLK_APLL_PFD3] = imx_clk_hw_pfdv2("apll_pfd3", "apll", base + 0x50c, 3);
/* SPLL PFDs */
- clks[IMX7ULP_CLK_SPLL_PFD0] = imx_clk_hw_pfdv2("spll_pfd0", "spll", base + 0x60C, 0);
- clks[IMX7ULP_CLK_SPLL_PFD1] = imx_clk_hw_pfdv2("spll_pfd1", "spll", base + 0x60C, 1);
- clks[IMX7ULP_CLK_SPLL_PFD2] = imx_clk_hw_pfdv2("spll_pfd2", "spll", base + 0x60C, 2);
- clks[IMX7ULP_CLK_SPLL_PFD3] = imx_clk_hw_pfdv2("spll_pfd3", "spll", base + 0x60C, 3);
+ hws[IMX7ULP_CLK_SPLL_PFD0] = imx_clk_hw_pfdv2("spll_pfd0", "spll", base + 0x60C, 0);
+ hws[IMX7ULP_CLK_SPLL_PFD1] = imx_clk_hw_pfdv2("spll_pfd1", "spll", base + 0x60C, 1);
+ hws[IMX7ULP_CLK_SPLL_PFD2] = imx_clk_hw_pfdv2("spll_pfd2", "spll", base + 0x60C, 2);
+ hws[IMX7ULP_CLK_SPLL_PFD3] = imx_clk_hw_pfdv2("spll_pfd3", "spll", base + 0x60C, 3);
/* PLL Mux */
- clks[IMX7ULP_CLK_APLL_PFD_SEL] = imx_clk_hw_mux_flags("apll_pfd_sel", base + 0x508, 14, 2, apll_pfd_sels, ARRAY_SIZE(apll_pfd_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);
- clks[IMX7ULP_CLK_SPLL_PFD_SEL] = imx_clk_hw_mux_flags("spll_pfd_sel", base + 0x608, 14, 2, spll_pfd_sels, ARRAY_SIZE(spll_pfd_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);
- clks[IMX7ULP_CLK_APLL_SEL] = imx_clk_hw_mux_flags("apll_sel", base + 0x508, 1, 1, apll_sels, ARRAY_SIZE(apll_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);
- clks[IMX7ULP_CLK_SPLL_SEL] = imx_clk_hw_mux_flags("spll_sel", base + 0x608, 1, 1, spll_sels, ARRAY_SIZE(spll_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);
+ hws[IMX7ULP_CLK_APLL_PFD_SEL] = imx_clk_hw_mux_flags("apll_pfd_sel", base + 0x508, 14, 2, apll_pfd_sels, ARRAY_SIZE(apll_pfd_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);
+ hws[IMX7ULP_CLK_SPLL_PFD_SEL] = imx_clk_hw_mux_flags("spll_pfd_sel", base + 0x608, 14, 2, spll_pfd_sels, ARRAY_SIZE(spll_pfd_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);
+ hws[IMX7ULP_CLK_APLL_SEL] = imx_clk_hw_mux_flags("apll_sel", base + 0x508, 1, 1, apll_sels, ARRAY_SIZE(apll_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);
+ hws[IMX7ULP_CLK_SPLL_SEL] = imx_clk_hw_mux_flags("spll_sel", base + 0x608, 1, 1, spll_sels, ARRAY_SIZE(spll_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);
- clks[IMX7ULP_CLK_SPLL_BUS_CLK] = imx_clk_hw_divider_gate("spll_bus_clk", "spll_sel", CLK_SET_RATE_GATE, base + 0x604, 8, 3, 0, ulp_div_table, &imx_ccm_lock);
+ hws[IMX7ULP_CLK_SPLL_BUS_CLK] = imx_clk_hw_divider_gate("spll_bus_clk", "spll_sel", CLK_SET_RATE_GATE, base + 0x604, 8, 3, 0, ulp_div_table, &imx_ccm_lock);
/* scs/ddr/nic select different clock source requires that clock to be enabled first */
- clks[IMX7ULP_CLK_SYS_SEL] = imx_clk_hw_mux2("scs_sel", base + 0x14, 24, 4, scs_sels, ARRAY_SIZE(scs_sels));
- clks[IMX7ULP_CLK_HSRUN_SYS_SEL] = imx_clk_hw_mux2("hsrun_scs_sel", base + 0x1c, 24, 4, scs_sels, ARRAY_SIZE(scs_sels));
- clks[IMX7ULP_CLK_NIC_SEL] = imx_clk_hw_mux2("nic_sel", base + 0x40, 28, 1, nic_sels, ARRAY_SIZE(nic_sels));
- clks[IMX7ULP_CLK_DDR_SEL] = imx_clk_hw_mux_flags("ddr_sel", base + 0x30, 24, 2, ddr_sels, ARRAY_SIZE(ddr_sels), CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE);
+ hws[IMX7ULP_CLK_SYS_SEL] = imx_clk_hw_mux2("scs_sel", base + 0x14, 24, 4, scs_sels, ARRAY_SIZE(scs_sels));
+ hws[IMX7ULP_CLK_HSRUN_SYS_SEL] = imx_clk_hw_mux2("hsrun_scs_sel", base + 0x1c, 24, 4, scs_sels, ARRAY_SIZE(scs_sels));
+ hws[IMX7ULP_CLK_NIC_SEL] = imx_clk_hw_mux2("nic_sel", base + 0x40, 28, 1, nic_sels, ARRAY_SIZE(nic_sels));
+ hws[IMX7ULP_CLK_DDR_SEL] = imx_clk_hw_mux_flags("ddr_sel", base + 0x30, 24, 2, ddr_sels, ARRAY_SIZE(ddr_sels), CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE);
- clks[IMX7ULP_CLK_CORE_DIV] = imx_clk_hw_divider_flags("divcore", "scs_sel", base + 0x14, 16, 4, CLK_SET_RATE_PARENT);
- clks[IMX7ULP_CLK_HSRUN_CORE_DIV] = imx_clk_hw_divider_flags("hsrun_divcore", "hsrun_scs_sel", base + 0x1c, 16, 4, CLK_SET_RATE_PARENT);
+ hws[IMX7ULP_CLK_CORE_DIV] = imx_clk_hw_divider_flags("divcore", "scs_sel", base + 0x14, 16, 4, CLK_SET_RATE_PARENT);
+ hws[IMX7ULP_CLK_HSRUN_CORE_DIV] = imx_clk_hw_divider_flags("hsrun_divcore", "hsrun_scs_sel", base + 0x1c, 16, 4, CLK_SET_RATE_PARENT);
- clks[IMX7ULP_CLK_DDR_DIV] = imx_clk_hw_divider_gate("ddr_clk", "ddr_sel", CLK_SET_RATE_PARENT | CLK_IS_CRITICAL, base + 0x30, 0, 3,
+ hws[IMX7ULP_CLK_DDR_DIV] = imx_clk_hw_divider_gate("ddr_clk", "ddr_sel", CLK_SET_RATE_PARENT | CLK_IS_CRITICAL, base + 0x30, 0, 3,
0, ulp_div_table, &imx_ccm_lock);
- clks[IMX7ULP_CLK_NIC0_DIV] = imx_clk_hw_divider_flags("nic0_clk", "nic_sel", base + 0x40, 24, 4, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
- clks[IMX7ULP_CLK_NIC1_DIV] = imx_clk_hw_divider_flags("nic1_clk", "nic0_clk", base + 0x40, 16, 4, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
- clks[IMX7ULP_CLK_NIC1_BUS_DIV] = imx_clk_hw_divider_flags("nic1_bus_clk", "nic0_clk", base + 0x40, 4, 4, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
+ hws[IMX7ULP_CLK_NIC0_DIV] = imx_clk_hw_divider_flags("nic0_clk", "nic_sel", base + 0x40, 24, 4, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
+ hws[IMX7ULP_CLK_NIC1_DIV] = imx_clk_hw_divider_flags("nic1_clk", "nic0_clk", base + 0x40, 16, 4, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
+ hws[IMX7ULP_CLK_NIC1_BUS_DIV] = imx_clk_hw_divider_flags("nic1_bus_clk", "nic0_clk", base + 0x40, 4, 4, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
- clks[IMX7ULP_CLK_GPU_DIV] = imx_clk_hw_divider("gpu_clk", "nic0_clk", base + 0x40, 20, 4);
+ hws[IMX7ULP_CLK_GPU_DIV] = imx_clk_hw_divider("gpu_clk", "nic0_clk", base + 0x40, 20, 4);
- clks[IMX7ULP_CLK_SOSC_BUS_CLK] = imx_clk_hw_divider_gate("sosc_bus_clk", "sosc", 0, base + 0x104, 8, 3,
+ hws[IMX7ULP_CLK_SOSC_BUS_CLK] = imx_clk_hw_divider_gate("sosc_bus_clk", "sosc", 0, base + 0x104, 8, 3,
CLK_DIVIDER_READ_ONLY, ulp_div_table, &imx_ccm_lock);
- clks[IMX7ULP_CLK_FIRC_BUS_CLK] = imx_clk_hw_divider_gate("firc_bus_clk", "firc", 0, base + 0x304, 8, 3,
+ hws[IMX7ULP_CLK_FIRC_BUS_CLK] = imx_clk_hw_divider_gate("firc_bus_clk", "firc", 0, base + 0x304, 8, 3,
CLK_DIVIDER_READ_ONLY, ulp_div_table, &imx_ccm_lock);
- imx_check_clk_hws(clks, clk_data->num);
+ imx_check_clk_hws(hws, clk_data->num);
of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);
}
@@ -145,7 +145,7 @@ CLK_OF_DECLARE(imx7ulp_clk_scg1, "fsl,imx7ulp-scg1", imx7ulp_clk_scg1_init);
static void __init imx7ulp_clk_pcc2_init(struct device_node *np)
{
struct clk_hw_onecell_data *clk_data;
- struct clk_hw **clks;
+ struct clk_hw **hws;
void __iomem *base;
int i;
@@ -155,42 +155,42 @@ static void __init imx7ulp_clk_pcc2_init(struct device_node *np)
return;
clk_data->num = IMX7ULP_CLK_PCC2_END;
- clks = clk_data->hws;
+ hws = clk_data->hws;
/* PCC2 */
base = of_iomap(np, 0);
WARN_ON(!base);
- clks[IMX7ULP_CLK_DMA1] = imx_clk_hw_gate("dma1", "nic1_clk", base + 0x20, 30);
- clks[IMX7ULP_CLK_RGPIO2P1] = imx_clk_hw_gate("rgpio2p1", "nic1_bus_clk", base + 0x3c, 30);
- clks[IMX7ULP_CLK_DMA_MUX1] = imx_clk_hw_gate("dma_mux1", "nic1_bus_clk", base + 0x84, 30);
- clks[IMX7ULP_CLK_CAAM] = imx_clk_hw_gate("caam", "nic1_clk", base + 0x90, 30);
- clks[IMX7ULP_CLK_LPTPM4] = imx7ulp_clk_hw_composite("lptpm4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x94);
- clks[IMX7ULP_CLK_LPTPM5] = imx7ulp_clk_hw_composite("lptpm5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x98);
- clks[IMX7ULP_CLK_LPIT1] = imx7ulp_clk_hw_composite("lpit1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x9c);
- clks[IMX7ULP_CLK_LPSPI2] = imx7ulp_clk_hw_composite("lpspi2", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xa4);
- clks[IMX7ULP_CLK_LPSPI3] = imx7ulp_clk_hw_composite("lpspi3", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xa8);
- clks[IMX7ULP_CLK_LPI2C4] = imx7ulp_clk_hw_composite("lpi2c4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xac);
- clks[IMX7ULP_CLK_LPI2C5] = imx7ulp_clk_hw_composite("lpi2c5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb0);
- clks[IMX7ULP_CLK_LPUART4] = imx7ulp_clk_hw_composite("lpuart4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb4);
- clks[IMX7ULP_CLK_LPUART5] = imx7ulp_clk_hw_composite("lpuart5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb8);
- clks[IMX7ULP_CLK_FLEXIO1] = imx7ulp_clk_hw_composite("flexio1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xc4);
- clks[IMX7ULP_CLK_USB0] = imx7ulp_clk_hw_composite("usb0", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xcc);
- clks[IMX7ULP_CLK_USB1] = imx7ulp_clk_hw_composite("usb1", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xd0);
- clks[IMX7ULP_CLK_USB_PHY] = imx_clk_hw_gate("usb_phy", "nic1_bus_clk", base + 0xd4, 30);
- clks[IMX7ULP_CLK_USDHC0] = imx7ulp_clk_hw_composite("usdhc0", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xdc);
- clks[IMX7ULP_CLK_USDHC1] = imx7ulp_clk_hw_composite("usdhc1", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xe0);
- clks[IMX7ULP_CLK_WDG1] = imx7ulp_clk_hw_composite("wdg1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0xf4);
- clks[IMX7ULP_CLK_WDG2] = imx7ulp_clk_hw_composite("sdg2", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0x10c);
-
- imx_check_clk_hws(clks, clk_data->num);
+ hws[IMX7ULP_CLK_DMA1] = imx_clk_hw_gate("dma1", "nic1_clk", base + 0x20, 30);
+ hws[IMX7ULP_CLK_RGPIO2P1] = imx_clk_hw_gate("rgpio2p1", "nic1_bus_clk", base + 0x3c, 30);
+ hws[IMX7ULP_CLK_DMA_MUX1] = imx_clk_hw_gate("dma_mux1", "nic1_bus_clk", base + 0x84, 30);
+ hws[IMX7ULP_CLK_CAAM] = imx_clk_hw_gate("caam", "nic1_clk", base + 0x90, 30);
+ hws[IMX7ULP_CLK_LPTPM4] = imx7ulp_clk_hw_composite("lptpm4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x94);
+ hws[IMX7ULP_CLK_LPTPM5] = imx7ulp_clk_hw_composite("lptpm5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x98);
+ hws[IMX7ULP_CLK_LPIT1] = imx7ulp_clk_hw_composite("lpit1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x9c);
+ hws[IMX7ULP_CLK_LPSPI2] = imx7ulp_clk_hw_composite("lpspi2", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xa4);
+ hws[IMX7ULP_CLK_LPSPI3] = imx7ulp_clk_hw_composite("lpspi3", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xa8);
+ hws[IMX7ULP_CLK_LPI2C4] = imx7ulp_clk_hw_composite("lpi2c4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xac);
+ hws[IMX7ULP_CLK_LPI2C5] = imx7ulp_clk_hw_composite("lpi2c5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb0);
+ hws[IMX7ULP_CLK_LPUART4] = imx7ulp_clk_hw_composite("lpuart4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb4);
+ hws[IMX7ULP_CLK_LPUART5] = imx7ulp_clk_hw_composite("lpuart5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb8);
+ hws[IMX7ULP_CLK_FLEXIO1] = imx7ulp_clk_hw_composite("flexio1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xc4);
+ hws[IMX7ULP_CLK_USB0] = imx7ulp_clk_hw_composite("usb0", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xcc);
+ hws[IMX7ULP_CLK_USB1] = imx7ulp_clk_hw_composite("usb1", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xd0);
+ hws[IMX7ULP_CLK_USB_PHY] = imx_clk_hw_gate("usb_phy", "nic1_bus_clk", base + 0xd4, 30);
+ hws[IMX7ULP_CLK_USDHC0] = imx7ulp_clk_hw_composite("usdhc0", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xdc);
+ hws[IMX7ULP_CLK_USDHC1] = imx7ulp_clk_hw_composite("usdhc1", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xe0);
+ hws[IMX7ULP_CLK_WDG1] = imx7ulp_clk_hw_composite("wdg1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0xf4);
+ hws[IMX7ULP_CLK_WDG2] = imx7ulp_clk_hw_composite("sdg2", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0x10c);
+
+ imx_check_clk_hws(hws, clk_data->num);
of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);
for (i = 0; i < ARRAY_SIZE(pcc2_uart_clk_ids); i++) {
int index = pcc2_uart_clk_ids[i];
- pcc2_uart_clks[i] = &clks[index]->clk;
+ pcc2_uart_clks[i] = &hws[index]->clk;
}
imx_register_uart_clocks(pcc2_uart_clks);
@@ -200,7 +200,7 @@ CLK_OF_DECLARE(imx7ulp_clk_pcc2, "fsl,imx7ulp-pcc2", imx7ulp_clk_pcc2_init);
static void __init imx7ulp_clk_pcc3_init(struct device_node *np)
{
struct clk_hw_onecell_data *clk_data;
- struct clk_hw **clks;
+ struct clk_hw **hws;
void __iomem *base;
int i;
@@ -210,41 +210,41 @@ static void __init imx7ulp_clk_pcc3_init(struct device_node *np)
return;
clk_data->num = IMX7ULP_CLK_PCC3_END;
- clks = clk_data->hws;
+ hws = clk_data->hws;
/* PCC3 */
base = of_iomap(np, 0);
WARN_ON(!base);
- clks[IMX7ULP_CLK_LPTPM6] = imx7ulp_clk_hw_composite("lptpm6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x84);
- clks[IMX7ULP_CLK_LPTPM7] = imx7ulp_clk_hw_composite("lptpm7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x88);
+ hws[IMX7ULP_CLK_LPTPM6] = imx7ulp_clk_hw_composite("lptpm6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x84);
+ hws[IMX7ULP_CLK_LPTPM7] = imx7ulp_clk_hw_composite("lptpm7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x88);
- clks[IMX7ULP_CLK_MMDC] = clk_hw_register_gate(NULL, "mmdc", "nic1_clk", CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
+ hws[IMX7ULP_CLK_MMDC] = clk_hw_register_gate(NULL, "mmdc", "nic1_clk", CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
base + 0xac, 30, 0, &imx_ccm_lock);
- clks[IMX7ULP_CLK_LPI2C6] = imx7ulp_clk_hw_composite("lpi2c6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x90);
- clks[IMX7ULP_CLK_LPI2C7] = imx7ulp_clk_hw_composite("lpi2c7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x94);
- clks[IMX7ULP_CLK_LPUART6] = imx7ulp_clk_hw_composite("lpuart6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x98);
- clks[IMX7ULP_CLK_LPUART7] = imx7ulp_clk_hw_composite("lpuart7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x9c);
- clks[IMX7ULP_CLK_DSI] = imx7ulp_clk_hw_composite("dsi", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0xa4);
- clks[IMX7ULP_CLK_LCDIF] = imx7ulp_clk_hw_composite("lcdif", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xa8);
+ hws[IMX7ULP_CLK_LPI2C6] = imx7ulp_clk_hw_composite("lpi2c6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x90);
+ hws[IMX7ULP_CLK_LPI2C7] = imx7ulp_clk_hw_composite("lpi2c7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x94);
+ hws[IMX7ULP_CLK_LPUART6] = imx7ulp_clk_hw_composite("lpuart6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x98);
+ hws[IMX7ULP_CLK_LPUART7] = imx7ulp_clk_hw_composite("lpuart7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x9c);
+ hws[IMX7ULP_CLK_DSI] = imx7ulp_clk_hw_composite("dsi", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0xa4);
+ hws[IMX7ULP_CLK_LCDIF] = imx7ulp_clk_hw_composite("lcdif", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xa8);
- clks[IMX7ULP_CLK_VIU] = imx_clk_hw_gate("viu", "nic1_clk", base + 0xa0, 30);
- clks[IMX7ULP_CLK_PCTLC] = imx_clk_hw_gate("pctlc", "nic1_bus_clk", base + 0xb8, 30);
- clks[IMX7ULP_CLK_PCTLD] = imx_clk_hw_gate("pctld", "nic1_bus_clk", base + 0xbc, 30);
- clks[IMX7ULP_CLK_PCTLE] = imx_clk_hw_gate("pctle", "nic1_bus_clk", base + 0xc0, 30);
- clks[IMX7ULP_CLK_PCTLF] = imx_clk_hw_gate("pctlf", "nic1_bus_clk", base + 0xc4, 30);
+ hws[IMX7ULP_CLK_VIU] = imx_clk_hw_gate("viu", "nic1_clk", base + 0xa0, 30);
+ hws[IMX7ULP_CLK_PCTLC] = imx_clk_hw_gate("pctlc", "nic1_bus_clk", base + 0xb8, 30);
+ hws[IMX7ULP_CLK_PCTLD] = imx_clk_hw_gate("pctld", "nic1_bus_clk", base + 0xbc, 30);
+ hws[IMX7ULP_CLK_PCTLE] = imx_clk_hw_gate("pctle", "nic1_bus_clk", base + 0xc0, 30);
+ hws[IMX7ULP_CLK_PCTLF] = imx_clk_hw_gate("pctlf", "nic1_bus_clk", base + 0xc4, 30);
- clks[IMX7ULP_CLK_GPU3D] = imx7ulp_clk_hw_composite("gpu3d", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, false, true, base + 0x140);
- clks[IMX7ULP_CLK_GPU2D] = imx7ulp_clk_hw_composite("gpu2d", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, false, true, base + 0x144);
+ hws[IMX7ULP_CLK_GPU3D] = imx7ulp_clk_hw_composite("gpu3d", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, false, true, base + 0x140);
+ hws[IMX7ULP_CLK_GPU2D] = imx7ulp_clk_hw_composite("gpu2d", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, false, true, base + 0x144);
- imx_check_clk_hws(clks, clk_data->num);
+ imx_check_clk_hws(hws, clk_data->num);
of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);
for (i = 0; i < ARRAY_SIZE(pcc3_uart_clk_ids); i++) {
int index = pcc3_uart_clk_ids[i];
- pcc3_uart_clks[i] = &clks[index]->clk;
+ pcc3_uart_clks[i] = &hws[index]->clk;
}
imx_register_uart_clocks(pcc3_uart_clks);
@@ -254,7 +254,7 @@ CLK_OF_DECLARE(imx7ulp_clk_pcc3, "fsl,imx7ulp-pcc3", imx7ulp_clk_pcc3_init);
static void __init imx7ulp_clk_smc1_init(struct device_node *np)
{
struct clk_hw_onecell_data *clk_data;
- struct clk_hw **clks;
+ struct clk_hw **hws;
void __iomem *base;
clk_data = kzalloc(struct_size(clk_data, hws, IMX7ULP_CLK_SMC1_END),
@@ -263,15 +263,15 @@ static void __init imx7ulp_clk_smc1_init(struct device_node *np)
return;
clk_data->num = IMX7ULP_CLK_SMC1_END;
- clks = clk_data->hws;
+ hws = clk_data->hws;
/* SMC1 */
base = of_iomap(np, 0);
WARN_ON(!base);
- clks[IMX7ULP_CLK_ARM] = imx_clk_hw_mux_flags("arm", base + 0x10, 8, 2, arm_sels, ARRAY_SIZE(arm_sels), CLK_IS_CRITICAL);
+ hws[IMX7ULP_CLK_ARM] = imx_clk_hw_mux_flags("arm", base + 0x10, 8, 2, arm_sels, ARRAY_SIZE(arm_sels), CLK_IS_CRITICAL);
- imx_check_clk_hws(clks, clk_data->num);
+ imx_check_clk_hws(hws, clk_data->num);
of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);
}
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* Re: [PATCH v2 01/11] clk: imx: Add correct failure handling for clk based helpers
2019-11-22 10:48 ` [PATCH v2 01/11] clk: imx: Add correct failure handling for clk based helpers Abel Vesa
@ 2019-11-22 21:48 ` Leonard Crestez
0 siblings, 0 replies; 15+ messages in thread
From: Leonard Crestez @ 2019-11-22 21:48 UTC (permalink / raw)
To: Abel Vesa, Shawn Guo, Stephen Boyd
Cc: Aisheng Dong, Sascha Hauer, Jacky Bai, Peng Fan, dl-linux-imx,
linux-clk, linux-arm-kernel, Linux Kernel Mailing List
On 2019-11-22 12:48 PM, Abel Vesa wrote:
> If the clk_hw based API returns an error, trying to return the clk from
> hw will end up in a NULL pointer dereference. So adding the to_clk
> checker and using it inside every clk based macro helper we handle that
> case correctly.
>
> This to_clk is also temporary and will go away along with the clk based
> macro helpers once there is no user that need them anymore.
>
> Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
> ---
> drivers/clk/imx/clk.h | 37 ++++++++++++++++++++++---------------
> 1 file changed, 22 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
> index bc5bb6a..30ddbc1 100644
> --- a/drivers/clk/imx/clk.h
> +++ b/drivers/clk/imx/clk.h
> @@ -54,48 +54,48 @@ extern struct imx_pll14xx_clk imx_1416x_pll;
> extern struct imx_pll14xx_clk imx_1443x_pll;
>
> #define imx_clk_cpu(name, parent_name, div, mux, pll, step) \
> - imx_clk_hw_cpu(name, parent_name, div, mux, pll, step)->clk
> + to_clk(imx_clk_hw_cpu(name, parent_name, div, mux, pll, step))
>
> #define clk_register_gate2(dev, name, parent_name, flags, reg, bit_idx, \
> cgr_val, clk_gate_flags, lock, share_count) \
> - clk_hw_register_gate2(dev, name, parent_name, flags, reg, bit_idx, \
> - cgr_val, clk_gate_flags, lock, share_count)->clk
> + to_clk(clk_hw_register_gate2(dev, name, parent_name, flags, reg, bit_idx, \
> + cgr_val, clk_gate_flags, lock, share_count))
>
> #define imx_clk_pllv3(type, name, parent_name, base, div_mask) \
> - imx_clk_hw_pllv3(type, name, parent_name, base, div_mask)->clk
> + to_clk(imx_clk_hw_pllv3(type, name, parent_name, base, div_mask))
>
> #define imx_clk_pfd(name, parent_name, reg, idx) \
> - imx_clk_hw_pfd(name, parent_name, reg, idx)->clk
> + to_clk(imx_clk_hw_pfd(name, parent_name, reg, idx))
>
> #define imx_clk_gate_exclusive(name, parent, reg, shift, exclusive_mask) \
> - imx_clk_hw_gate_exclusive(name, parent, reg, shift, exclusive_mask)->clk
> + to_clk(imx_clk_hw_gate_exclusive(name, parent, reg, shift, exclusive_mask))
>
> #define imx_clk_fixed_factor(name, parent, mult, div) \
> - imx_clk_hw_fixed_factor(name, parent, mult, div)->clk
> + to_clk(imx_clk_hw_fixed_factor(name, parent, mult, div))
>
> #define imx_clk_divider2(name, parent, reg, shift, width) \
> - imx_clk_hw_divider2(name, parent, reg, shift, width)->clk
> + to_clk(imx_clk_hw_divider2(name, parent, reg, shift, width))
>
> #define imx_clk_gate_dis(name, parent, reg, shift) \
> - imx_clk_hw_gate_dis(name, parent, reg, shift)->clk
> + to_clk(imx_clk_hw_gate_dis(name, parent, reg, shift))
>
> #define imx_clk_gate2(name, parent, reg, shift) \
> - imx_clk_hw_gate2(name, parent, reg, shift)->clk
> + to_clk(imx_clk_hw_gate2(name, parent, reg, shift))
>
> #define imx_clk_gate2_flags(name, parent, reg, shift, flags) \
> - imx_clk_hw_gate2_flags(name, parent, reg, shift, flags)->clk
> + to_clk(imx_clk_hw_gate2_flags(name, parent, reg, shift, flags))
>
> #define imx_clk_gate2_shared2(name, parent, reg, shift, share_count) \
> - imx_clk_hw_gate2_shared2(name, parent, reg, shift, share_count)->clk
> + to_clk(imx_clk_hw_gate2_shared2(name, parent, reg, shift, share_count))
>
> #define imx_clk_gate3(name, parent, reg, shift) \
> - imx_clk_hw_gate3(name, parent, reg, shift)->clk
> + to_clk(imx_clk_hw_gate3(name, parent, reg, shift))
>
> #define imx_clk_gate4(name, parent, reg, shift) \
> - imx_clk_hw_gate4(name, parent, reg, shift)->clk
> + to_clk(imx_clk_hw_gate4(name, parent, reg, shift))
>
> #define imx_clk_mux(name, reg, shift, width, parents, num_parents) \
> - imx_clk_hw_mux(name, reg, shift, width, parents, num_parents)->clk
> + to_clk(imx_clk_hw_mux(name, reg, shift, width, parents, num_parents))
>
> struct clk *imx_clk_pll14xx(const char *name, const char *parent_name,
> void __iomem *base, const struct imx_pll14xx_clk *pll_clk);
> @@ -198,6 +198,13 @@ struct clk_hw *imx_clk_hw_fixup_mux(const char *name, void __iomem *reg,
> u8 shift, u8 width, const char * const *parents,
> int num_parents, void (*fixup)(u32 *val));
>
> +static inline struct clk *to_clk(struct clk_hw *hw)
> +{
> + if (IS_ERR_OR_NULL(hw))
> + return ERR_CAST(hw);
> + return hw->clk;
> +}
> +
> static inline struct clk *imx_clk_fixed(const char *name, int rate)
> {
> return clk_register_fixed_rate(NULL, name, NULL, 0, rate);
>
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 02/11] clk: imx: Rename the SCCG to SSCG
2019-11-22 10:48 ` [PATCH v2 02/11] clk: imx: Rename the SCCG to SSCG Abel Vesa
@ 2019-11-22 21:50 ` Leonard Crestez
0 siblings, 0 replies; 15+ messages in thread
From: Leonard Crestez @ 2019-11-22 21:50 UTC (permalink / raw)
To: Abel Vesa, Shawn Guo, Stephen Boyd
Cc: Aisheng Dong, Sascha Hauer, Jacky Bai, Peng Fan, dl-linux-imx,
linux-clk, linux-arm-kernel, Linux Kernel Mailing List
On 2019-11-22 12:48 PM, Abel Vesa wrote:
> According to the manual the acronym stands for
> Spread Sprectum Clock Generator.
>
> Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
This misspelling bothered me for some reason.
> ---
> drivers/clk/imx/Makefile | 2 +-
> drivers/clk/imx/clk-imx8mq.c | 6 +-
> drivers/clk/imx/clk-sccg-pll.c | 549 -----------------------------------------
> drivers/clk/imx/clk-sscg-pll.c | 549 +++++++++++++++++++++++++++++++++++++++++
> drivers/clk/imx/clk.h | 4 +-
> 5 files changed, 555 insertions(+), 555 deletions(-)
> delete mode 100644 drivers/clk/imx/clk-sccg-pll.c
> create mode 100644 drivers/clk/imx/clk-sscg-pll.c
>
> diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile
> index 77a3d71..3724ba7 100644
> --- a/drivers/clk/imx/Makefile
> +++ b/drivers/clk/imx/Makefile
> @@ -18,7 +18,7 @@ obj-$(CONFIG_MXC_CLK) += \
> clk-pllv2.o \
> clk-pllv3.o \
> clk-pllv4.o \
> - clk-sccg-pll.o \
> + clk-sscg-pll.o \
> clk-pll14xx.o
>
> obj-$(CONFIG_MXC_CLK_SCU) += \
> diff --git a/drivers/clk/imx/clk-imx8mq.c b/drivers/clk/imx/clk-imx8mq.c
> index 5f10a60..f2a35b1 100644
> --- a/drivers/clk/imx/clk-imx8mq.c
> +++ b/drivers/clk/imx/clk-imx8mq.c
> @@ -342,9 +342,9 @@ static int imx8mq_clocks_probe(struct platform_device *pdev)
>
> clks[IMX8MQ_SYS1_PLL_OUT] = imx_clk_fixed("sys1_pll_out", 800000000);
> clks[IMX8MQ_SYS2_PLL_OUT] = imx_clk_fixed("sys2_pll_out", 1000000000);
> - clks[IMX8MQ_SYS3_PLL_OUT] = imx_clk_sccg_pll("sys3_pll_out", sys3_pll_out_sels, ARRAY_SIZE(sys3_pll_out_sels), 0, 0, 0, base + 0x48, CLK_IS_CRITICAL);
> - clks[IMX8MQ_DRAM_PLL_OUT] = imx_clk_sccg_pll("dram_pll_out", dram_pll_out_sels, ARRAY_SIZE(dram_pll_out_sels), 0, 0, 0, base + 0x60, CLK_IS_CRITICAL);
> - clks[IMX8MQ_VIDEO2_PLL_OUT] = imx_clk_sccg_pll("video2_pll_out", video2_pll_out_sels, ARRAY_SIZE(video2_pll_out_sels), 0, 0, 0, base + 0x54, 0);
> + clks[IMX8MQ_SYS3_PLL_OUT] = imx_clk_sscg_pll("sys3_pll_out", sys3_pll_out_sels, ARRAY_SIZE(sys3_pll_out_sels), 0, 0, 0, base + 0x48, CLK_IS_CRITICAL);
> + clks[IMX8MQ_DRAM_PLL_OUT] = imx_clk_sscg_pll("dram_pll_out", dram_pll_out_sels, ARRAY_SIZE(dram_pll_out_sels), 0, 0, 0, base + 0x60, CLK_IS_CRITICAL);
> + clks[IMX8MQ_VIDEO2_PLL_OUT] = imx_clk_sscg_pll("video2_pll_out", video2_pll_out_sels, ARRAY_SIZE(video2_pll_out_sels), 0, 0, 0, base + 0x54, 0);
>
> /* SYS PLL1 fixed output */
> clks[IMX8MQ_SYS1_PLL_40M_CG] = imx_clk_gate("sys1_pll_40m_cg", "sys1_pll_out", base + 0x30, 9);
> diff --git a/drivers/clk/imx/clk-sccg-pll.c b/drivers/clk/imx/clk-sccg-pll.c
> deleted file mode 100644
> index 5d65f65..00000000
> --- a/drivers/clk/imx/clk-sccg-pll.c
> +++ /dev/null
> @@ -1,549 +0,0 @@
> -// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> -/*
> - * Copyright 2018 NXP.
> - *
> - * This driver supports the SCCG plls found in the imx8m SOCs
> - *
> - * Documentation for this SCCG pll can be found at:
> - * https://www.nxp.com/docs/en/reference-manual/IMX8MDQLQRM.pdf#page=834
> - */
> -
> -#include <linux/clk-provider.h>
> -#include <linux/err.h>
> -#include <linux/io.h>
> -#include <linux/iopoll.h>
> -#include <linux/slab.h>
> -#include <linux/bitfield.h>
> -
> -#include "clk.h"
> -
> -/* PLL CFGs */
> -#define PLL_CFG0 0x0
> -#define PLL_CFG1 0x4
> -#define PLL_CFG2 0x8
> -
> -#define PLL_DIVF1_MASK GENMASK(18, 13)
> -#define PLL_DIVF2_MASK GENMASK(12, 7)
> -#define PLL_DIVR1_MASK GENMASK(27, 25)
> -#define PLL_DIVR2_MASK GENMASK(24, 19)
> -#define PLL_DIVQ_MASK GENMASK(6, 1)
> -#define PLL_REF_MASK GENMASK(2, 0)
> -
> -#define PLL_LOCK_MASK BIT(31)
> -#define PLL_PD_MASK BIT(7)
> -
> -/* These are the specification limits for the SSCG PLL */
> -#define PLL_REF_MIN_FREQ 25000000UL
> -#define PLL_REF_MAX_FREQ 235000000UL
> -
> -#define PLL_STAGE1_MIN_FREQ 1600000000UL
> -#define PLL_STAGE1_MAX_FREQ 2400000000UL
> -
> -#define PLL_STAGE1_REF_MIN_FREQ 25000000UL
> -#define PLL_STAGE1_REF_MAX_FREQ 54000000UL
> -
> -#define PLL_STAGE2_MIN_FREQ 1200000000UL
> -#define PLL_STAGE2_MAX_FREQ 2400000000UL
> -
> -#define PLL_STAGE2_REF_MIN_FREQ 54000000UL
> -#define PLL_STAGE2_REF_MAX_FREQ 75000000UL
> -
> -#define PLL_OUT_MIN_FREQ 20000000UL
> -#define PLL_OUT_MAX_FREQ 1200000000UL
> -
> -#define PLL_DIVR1_MAX 7
> -#define PLL_DIVR2_MAX 63
> -#define PLL_DIVF1_MAX 63
> -#define PLL_DIVF2_MAX 63
> -#define PLL_DIVQ_MAX 63
> -
> -#define PLL_BYPASS_NONE 0x0
> -#define PLL_BYPASS1 0x2
> -#define PLL_BYPASS2 0x1
> -
> -#define SSCG_PLL_BYPASS1_MASK BIT(5)
> -#define SSCG_PLL_BYPASS2_MASK BIT(4)
> -#define SSCG_PLL_BYPASS_MASK GENMASK(5, 4)
> -
> -#define PLL_SCCG_LOCK_TIMEOUT 70
> -
> -struct clk_sccg_pll_setup {
> - int divr1, divf1;
> - int divr2, divf2;
> - int divq;
> - int bypass;
> -
> - uint64_t vco1;
> - uint64_t vco2;
> - uint64_t fout;
> - uint64_t ref;
> - uint64_t ref_div1;
> - uint64_t ref_div2;
> - uint64_t fout_request;
> - int fout_error;
> -};
> -
> -struct clk_sccg_pll {
> - struct clk_hw hw;
> - const struct clk_ops ops;
> -
> - void __iomem *base;
> -
> - struct clk_sccg_pll_setup setup;
> -
> - u8 parent;
> - u8 bypass1;
> - u8 bypass2;
> -};
> -
> -#define to_clk_sccg_pll(_hw) container_of(_hw, struct clk_sccg_pll, hw)
> -
> -static int clk_sccg_pll_wait_lock(struct clk_sccg_pll *pll)
> -{
> - u32 val;
> -
> - val = readl_relaxed(pll->base + PLL_CFG0);
> -
> - /* don't wait for lock if all plls are bypassed */
> - if (!(val & SSCG_PLL_BYPASS2_MASK))
> - return readl_poll_timeout(pll->base, val, val & PLL_LOCK_MASK,
> - 0, PLL_SCCG_LOCK_TIMEOUT);
> -
> - return 0;
> -}
> -
> -static int clk_sccg_pll2_check_match(struct clk_sccg_pll_setup *setup,
> - struct clk_sccg_pll_setup *temp_setup)
> -{
> - int new_diff = temp_setup->fout - temp_setup->fout_request;
> - int diff = temp_setup->fout_error;
> -
> - if (abs(diff) > abs(new_diff)) {
> - temp_setup->fout_error = new_diff;
> - memcpy(setup, temp_setup, sizeof(struct clk_sccg_pll_setup));
> -
> - if (temp_setup->fout_request == temp_setup->fout)
> - return 0;
> - }
> - return -1;
> -}
> -
> -static int clk_sccg_divq_lookup(struct clk_sccg_pll_setup *setup,
> - struct clk_sccg_pll_setup *temp_setup)
> -{
> - int ret = -EINVAL;
> -
> - for (temp_setup->divq = 0; temp_setup->divq <= PLL_DIVQ_MAX;
> - temp_setup->divq++) {
> - temp_setup->vco2 = temp_setup->vco1;
> - do_div(temp_setup->vco2, temp_setup->divr2 + 1);
> - temp_setup->vco2 *= 2;
> - temp_setup->vco2 *= temp_setup->divf2 + 1;
> - if (temp_setup->vco2 >= PLL_STAGE2_MIN_FREQ &&
> - temp_setup->vco2 <= PLL_STAGE2_MAX_FREQ) {
> - temp_setup->fout = temp_setup->vco2;
> - do_div(temp_setup->fout, 2 * (temp_setup->divq + 1));
> -
> - ret = clk_sccg_pll2_check_match(setup, temp_setup);
> - if (!ret) {
> - temp_setup->bypass = PLL_BYPASS1;
> - return ret;
> - }
> - }
> - }
> -
> - return ret;
> -}
> -
> -static int clk_sccg_divf2_lookup(struct clk_sccg_pll_setup *setup,
> - struct clk_sccg_pll_setup *temp_setup)
> -{
> - int ret = -EINVAL;
> -
> - for (temp_setup->divf2 = 0; temp_setup->divf2 <= PLL_DIVF2_MAX;
> - temp_setup->divf2++) {
> - ret = clk_sccg_divq_lookup(setup, temp_setup);
> - if (!ret)
> - return ret;
> - }
> -
> - return ret;
> -}
> -
> -static int clk_sccg_divr2_lookup(struct clk_sccg_pll_setup *setup,
> - struct clk_sccg_pll_setup *temp_setup)
> -{
> - int ret = -EINVAL;
> -
> - for (temp_setup->divr2 = 0; temp_setup->divr2 <= PLL_DIVR2_MAX;
> - temp_setup->divr2++) {
> - temp_setup->ref_div2 = temp_setup->vco1;
> - do_div(temp_setup->ref_div2, temp_setup->divr2 + 1);
> - if (temp_setup->ref_div2 >= PLL_STAGE2_REF_MIN_FREQ &&
> - temp_setup->ref_div2 <= PLL_STAGE2_REF_MAX_FREQ) {
> - ret = clk_sccg_divf2_lookup(setup, temp_setup);
> - if (!ret)
> - return ret;
> - }
> - }
> -
> - return ret;
> -}
> -
> -static int clk_sccg_pll2_find_setup(struct clk_sccg_pll_setup *setup,
> - struct clk_sccg_pll_setup *temp_setup,
> - uint64_t ref)
> -{
> -
> - int ret = -EINVAL;
> -
> - if (ref < PLL_STAGE1_MIN_FREQ || ref > PLL_STAGE1_MAX_FREQ)
> - return ret;
> -
> - temp_setup->vco1 = ref;
> -
> - ret = clk_sccg_divr2_lookup(setup, temp_setup);
> - return ret;
> -}
> -
> -static int clk_sccg_divf1_lookup(struct clk_sccg_pll_setup *setup,
> - struct clk_sccg_pll_setup *temp_setup)
> -{
> - int ret = -EINVAL;
> -
> - for (temp_setup->divf1 = 0; temp_setup->divf1 <= PLL_DIVF1_MAX;
> - temp_setup->divf1++) {
> - uint64_t vco1 = temp_setup->ref;
> -
> - do_div(vco1, temp_setup->divr1 + 1);
> - vco1 *= 2;
> - vco1 *= temp_setup->divf1 + 1;
> -
> - ret = clk_sccg_pll2_find_setup(setup, temp_setup, vco1);
> - if (!ret) {
> - temp_setup->bypass = PLL_BYPASS_NONE;
> - return ret;
> - }
> - }
> -
> - return ret;
> -}
> -
> -static int clk_sccg_divr1_lookup(struct clk_sccg_pll_setup *setup,
> - struct clk_sccg_pll_setup *temp_setup)
> -{
> - int ret = -EINVAL;
> -
> - for (temp_setup->divr1 = 0; temp_setup->divr1 <= PLL_DIVR1_MAX;
> - temp_setup->divr1++) {
> - temp_setup->ref_div1 = temp_setup->ref;
> - do_div(temp_setup->ref_div1, temp_setup->divr1 + 1);
> - if (temp_setup->ref_div1 >= PLL_STAGE1_REF_MIN_FREQ &&
> - temp_setup->ref_div1 <= PLL_STAGE1_REF_MAX_FREQ) {
> - ret = clk_sccg_divf1_lookup(setup, temp_setup);
> - if (!ret)
> - return ret;
> - }
> - }
> -
> - return ret;
> -}
> -
> -static int clk_sccg_pll1_find_setup(struct clk_sccg_pll_setup *setup,
> - struct clk_sccg_pll_setup *temp_setup,
> - uint64_t ref)
> -{
> -
> - int ret = -EINVAL;
> -
> - if (ref < PLL_REF_MIN_FREQ || ref > PLL_REF_MAX_FREQ)
> - return ret;
> -
> - temp_setup->ref = ref;
> -
> - ret = clk_sccg_divr1_lookup(setup, temp_setup);
> -
> - return ret;
> -}
> -
> -static int clk_sccg_pll_find_setup(struct clk_sccg_pll_setup *setup,
> - uint64_t prate,
> - uint64_t rate, int try_bypass)
> -{
> - struct clk_sccg_pll_setup temp_setup;
> - int ret = -EINVAL;
> -
> - memset(&temp_setup, 0, sizeof(struct clk_sccg_pll_setup));
> - memset(setup, 0, sizeof(struct clk_sccg_pll_setup));
> -
> - temp_setup.fout_error = PLL_OUT_MAX_FREQ;
> - temp_setup.fout_request = rate;
> -
> - switch (try_bypass) {
> -
> - case PLL_BYPASS2:
> - if (prate == rate) {
> - setup->bypass = PLL_BYPASS2;
> - setup->fout = rate;
> - ret = 0;
> - }
> - break;
> -
> - case PLL_BYPASS1:
> - ret = clk_sccg_pll2_find_setup(setup, &temp_setup, prate);
> - break;
> -
> - case PLL_BYPASS_NONE:
> - ret = clk_sccg_pll1_find_setup(setup, &temp_setup, prate);
> - break;
> - }
> -
> - return ret;
> -}
> -
> -
> -static int clk_sccg_pll_is_prepared(struct clk_hw *hw)
> -{
> - struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
> -
> - u32 val = readl_relaxed(pll->base + PLL_CFG0);
> -
> - return (val & PLL_PD_MASK) ? 0 : 1;
> -}
> -
> -static int clk_sccg_pll_prepare(struct clk_hw *hw)
> -{
> - struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
> - u32 val;
> -
> - val = readl_relaxed(pll->base + PLL_CFG0);
> - val &= ~PLL_PD_MASK;
> - writel_relaxed(val, pll->base + PLL_CFG0);
> -
> - return clk_sccg_pll_wait_lock(pll);
> -}
> -
> -static void clk_sccg_pll_unprepare(struct clk_hw *hw)
> -{
> - struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
> - u32 val;
> -
> - val = readl_relaxed(pll->base + PLL_CFG0);
> - val |= PLL_PD_MASK;
> - writel_relaxed(val, pll->base + PLL_CFG0);
> -}
> -
> -static unsigned long clk_sccg_pll_recalc_rate(struct clk_hw *hw,
> - unsigned long parent_rate)
> -{
> - struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
> - u32 val, divr1, divf1, divr2, divf2, divq;
> - u64 temp64;
> -
> - val = readl_relaxed(pll->base + PLL_CFG2);
> - divr1 = FIELD_GET(PLL_DIVR1_MASK, val);
> - divr2 = FIELD_GET(PLL_DIVR2_MASK, val);
> - divf1 = FIELD_GET(PLL_DIVF1_MASK, val);
> - divf2 = FIELD_GET(PLL_DIVF2_MASK, val);
> - divq = FIELD_GET(PLL_DIVQ_MASK, val);
> -
> - temp64 = parent_rate;
> -
> - val = readl(pll->base + PLL_CFG0);
> - if (val & SSCG_PLL_BYPASS2_MASK) {
> - temp64 = parent_rate;
> - } else if (val & SSCG_PLL_BYPASS1_MASK) {
> - temp64 *= divf2;
> - do_div(temp64, (divr2 + 1) * (divq + 1));
> - } else {
> - temp64 *= 2;
> - temp64 *= (divf1 + 1) * (divf2 + 1);
> - do_div(temp64, (divr1 + 1) * (divr2 + 1) * (divq + 1));
> - }
> -
> - return temp64;
> -}
> -
> -static int clk_sccg_pll_set_rate(struct clk_hw *hw, unsigned long rate,
> - unsigned long parent_rate)
> -{
> - struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
> - struct clk_sccg_pll_setup *setup = &pll->setup;
> - u32 val;
> -
> - /* set bypass here too since the parent might be the same */
> - val = readl(pll->base + PLL_CFG0);
> - val &= ~SSCG_PLL_BYPASS_MASK;
> - val |= FIELD_PREP(SSCG_PLL_BYPASS_MASK, setup->bypass);
> - writel(val, pll->base + PLL_CFG0);
> -
> - val = readl_relaxed(pll->base + PLL_CFG2);
> - val &= ~(PLL_DIVF1_MASK | PLL_DIVF2_MASK);
> - val &= ~(PLL_DIVR1_MASK | PLL_DIVR2_MASK | PLL_DIVQ_MASK);
> - val |= FIELD_PREP(PLL_DIVF1_MASK, setup->divf1);
> - val |= FIELD_PREP(PLL_DIVF2_MASK, setup->divf2);
> - val |= FIELD_PREP(PLL_DIVR1_MASK, setup->divr1);
> - val |= FIELD_PREP(PLL_DIVR2_MASK, setup->divr2);
> - val |= FIELD_PREP(PLL_DIVQ_MASK, setup->divq);
> - writel_relaxed(val, pll->base + PLL_CFG2);
> -
> - return clk_sccg_pll_wait_lock(pll);
> -}
> -
> -static u8 clk_sccg_pll_get_parent(struct clk_hw *hw)
> -{
> - struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
> - u32 val;
> - u8 ret = pll->parent;
> -
> - val = readl(pll->base + PLL_CFG0);
> - if (val & SSCG_PLL_BYPASS2_MASK)
> - ret = pll->bypass2;
> - else if (val & SSCG_PLL_BYPASS1_MASK)
> - ret = pll->bypass1;
> - return ret;
> -}
> -
> -static int clk_sccg_pll_set_parent(struct clk_hw *hw, u8 index)
> -{
> - struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
> - u32 val;
> -
> - val = readl(pll->base + PLL_CFG0);
> - val &= ~SSCG_PLL_BYPASS_MASK;
> - val |= FIELD_PREP(SSCG_PLL_BYPASS_MASK, pll->setup.bypass);
> - writel(val, pll->base + PLL_CFG0);
> -
> - return clk_sccg_pll_wait_lock(pll);
> -}
> -
> -static int __clk_sccg_pll_determine_rate(struct clk_hw *hw,
> - struct clk_rate_request *req,
> - uint64_t min,
> - uint64_t max,
> - uint64_t rate,
> - int bypass)
> -{
> - struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
> - struct clk_sccg_pll_setup *setup = &pll->setup;
> - struct clk_hw *parent_hw = NULL;
> - int bypass_parent_index;
> - int ret = -EINVAL;
> -
> - req->max_rate = max;
> - req->min_rate = min;
> -
> - switch (bypass) {
> - case PLL_BYPASS2:
> - bypass_parent_index = pll->bypass2;
> - break;
> - case PLL_BYPASS1:
> - bypass_parent_index = pll->bypass1;
> - break;
> - default:
> - bypass_parent_index = pll->parent;
> - break;
> - }
> -
> - parent_hw = clk_hw_get_parent_by_index(hw, bypass_parent_index);
> - ret = __clk_determine_rate(parent_hw, req);
> - if (!ret) {
> - ret = clk_sccg_pll_find_setup(setup, req->rate,
> - rate, bypass);
> - }
> -
> - req->best_parent_hw = parent_hw;
> - req->best_parent_rate = req->rate;
> - req->rate = setup->fout;
> -
> - return ret;
> -}
> -
> -static int clk_sccg_pll_determine_rate(struct clk_hw *hw,
> - struct clk_rate_request *req)
> -{
> - struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
> - struct clk_sccg_pll_setup *setup = &pll->setup;
> - uint64_t rate = req->rate;
> - uint64_t min = req->min_rate;
> - uint64_t max = req->max_rate;
> - int ret = -EINVAL;
> -
> - if (rate < PLL_OUT_MIN_FREQ || rate > PLL_OUT_MAX_FREQ)
> - return ret;
> -
> - ret = __clk_sccg_pll_determine_rate(hw, req, req->rate, req->rate,
> - rate, PLL_BYPASS2);
> - if (!ret)
> - return ret;
> -
> - ret = __clk_sccg_pll_determine_rate(hw, req, PLL_STAGE1_REF_MIN_FREQ,
> - PLL_STAGE1_REF_MAX_FREQ, rate,
> - PLL_BYPASS1);
> - if (!ret)
> - return ret;
> -
> - ret = __clk_sccg_pll_determine_rate(hw, req, PLL_REF_MIN_FREQ,
> - PLL_REF_MAX_FREQ, rate,
> - PLL_BYPASS_NONE);
> - if (!ret)
> - return ret;
> -
> - if (setup->fout >= min && setup->fout <= max)
> - ret = 0;
> -
> - return ret;
> -}
> -
> -static const struct clk_ops clk_sccg_pll_ops = {
> - .prepare = clk_sccg_pll_prepare,
> - .unprepare = clk_sccg_pll_unprepare,
> - .is_prepared = clk_sccg_pll_is_prepared,
> - .recalc_rate = clk_sccg_pll_recalc_rate,
> - .set_rate = clk_sccg_pll_set_rate,
> - .set_parent = clk_sccg_pll_set_parent,
> - .get_parent = clk_sccg_pll_get_parent,
> - .determine_rate = clk_sccg_pll_determine_rate,
> -};
> -
> -struct clk *imx_clk_sccg_pll(const char *name,
> - const char * const *parent_names,
> - u8 num_parents,
> - u8 parent, u8 bypass1, u8 bypass2,
> - void __iomem *base,
> - unsigned long flags)
> -{
> - struct clk_sccg_pll *pll;
> - struct clk_init_data init;
> - struct clk_hw *hw;
> - int ret;
> -
> - pll = kzalloc(sizeof(*pll), GFP_KERNEL);
> - if (!pll)
> - return ERR_PTR(-ENOMEM);
> -
> - pll->parent = parent;
> - pll->bypass1 = bypass1;
> - pll->bypass2 = bypass2;
> -
> - pll->base = base;
> - init.name = name;
> - init.ops = &clk_sccg_pll_ops;
> -
> - init.flags = flags;
> - init.parent_names = parent_names;
> - init.num_parents = num_parents;
> -
> - pll->base = base;
> - pll->hw.init = &init;
> -
> - hw = &pll->hw;
> -
> - ret = clk_hw_register(NULL, hw);
> - if (ret) {
> - kfree(pll);
> - return ERR_PTR(ret);
> - }
> -
> - return hw->clk;
> -}
> diff --git a/drivers/clk/imx/clk-sscg-pll.c b/drivers/clk/imx/clk-sscg-pll.c
> new file mode 100644
> index 00000000..0669e17
> --- /dev/null
> +++ b/drivers/clk/imx/clk-sscg-pll.c
> @@ -0,0 +1,549 @@
> +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> +/*
> + * Copyright 2018 NXP.
> + *
> + * This driver supports the SCCG plls found in the imx8m SOCs
> + *
> + * Documentation for this SCCG pll can be found at:
> + * https://www.nxp.com/docs/en/reference-manual/IMX8MDQLQRM.pdf#page=834
> + */
> +
> +#include <linux/clk-provider.h>
> +#include <linux/err.h>
> +#include <linux/io.h>
> +#include <linux/iopoll.h>
> +#include <linux/slab.h>
> +#include <linux/bitfield.h>
> +
> +#include "clk.h"
> +
> +/* PLL CFGs */
> +#define PLL_CFG0 0x0
> +#define PLL_CFG1 0x4
> +#define PLL_CFG2 0x8
> +
> +#define PLL_DIVF1_MASK GENMASK(18, 13)
> +#define PLL_DIVF2_MASK GENMASK(12, 7)
> +#define PLL_DIVR1_MASK GENMASK(27, 25)
> +#define PLL_DIVR2_MASK GENMASK(24, 19)
> +#define PLL_DIVQ_MASK GENMASK(6, 1)
> +#define PLL_REF_MASK GENMASK(2, 0)
> +
> +#define PLL_LOCK_MASK BIT(31)
> +#define PLL_PD_MASK BIT(7)
> +
> +/* These are the specification limits for the SSCG PLL */
> +#define PLL_REF_MIN_FREQ 25000000UL
> +#define PLL_REF_MAX_FREQ 235000000UL
> +
> +#define PLL_STAGE1_MIN_FREQ 1600000000UL
> +#define PLL_STAGE1_MAX_FREQ 2400000000UL
> +
> +#define PLL_STAGE1_REF_MIN_FREQ 25000000UL
> +#define PLL_STAGE1_REF_MAX_FREQ 54000000UL
> +
> +#define PLL_STAGE2_MIN_FREQ 1200000000UL
> +#define PLL_STAGE2_MAX_FREQ 2400000000UL
> +
> +#define PLL_STAGE2_REF_MIN_FREQ 54000000UL
> +#define PLL_STAGE2_REF_MAX_FREQ 75000000UL
> +
> +#define PLL_OUT_MIN_FREQ 20000000UL
> +#define PLL_OUT_MAX_FREQ 1200000000UL
> +
> +#define PLL_DIVR1_MAX 7
> +#define PLL_DIVR2_MAX 63
> +#define PLL_DIVF1_MAX 63
> +#define PLL_DIVF2_MAX 63
> +#define PLL_DIVQ_MAX 63
> +
> +#define PLL_BYPASS_NONE 0x0
> +#define PLL_BYPASS1 0x2
> +#define PLL_BYPASS2 0x1
> +
> +#define SSCG_PLL_BYPASS1_MASK BIT(5)
> +#define SSCG_PLL_BYPASS2_MASK BIT(4)
> +#define SSCG_PLL_BYPASS_MASK GENMASK(5, 4)
> +
> +#define PLL_SCCG_LOCK_TIMEOUT 70
> +
> +struct clk_sscg_pll_setup {
> + int divr1, divf1;
> + int divr2, divf2;
> + int divq;
> + int bypass;
> +
> + uint64_t vco1;
> + uint64_t vco2;
> + uint64_t fout;
> + uint64_t ref;
> + uint64_t ref_div1;
> + uint64_t ref_div2;
> + uint64_t fout_request;
> + int fout_error;
> +};
> +
> +struct clk_sscg_pll {
> + struct clk_hw hw;
> + const struct clk_ops ops;
> +
> + void __iomem *base;
> +
> + struct clk_sscg_pll_setup setup;
> +
> + u8 parent;
> + u8 bypass1;
> + u8 bypass2;
> +};
> +
> +#define to_clk_sscg_pll(_hw) container_of(_hw, struct clk_sscg_pll, hw)
> +
> +static int clk_sscg_pll_wait_lock(struct clk_sscg_pll *pll)
> +{
> + u32 val;
> +
> + val = readl_relaxed(pll->base + PLL_CFG0);
> +
> + /* don't wait for lock if all plls are bypassed */
> + if (!(val & SSCG_PLL_BYPASS2_MASK))
> + return readl_poll_timeout(pll->base, val, val & PLL_LOCK_MASK,
> + 0, PLL_SCCG_LOCK_TIMEOUT);
> +
> + return 0;
> +}
> +
> +static int clk_sscg_pll2_check_match(struct clk_sscg_pll_setup *setup,
> + struct clk_sscg_pll_setup *temp_setup)
> +{
> + int new_diff = temp_setup->fout - temp_setup->fout_request;
> + int diff = temp_setup->fout_error;
> +
> + if (abs(diff) > abs(new_diff)) {
> + temp_setup->fout_error = new_diff;
> + memcpy(setup, temp_setup, sizeof(struct clk_sscg_pll_setup));
> +
> + if (temp_setup->fout_request == temp_setup->fout)
> + return 0;
> + }
> + return -1;
> +}
> +
> +static int clk_sscg_divq_lookup(struct clk_sscg_pll_setup *setup,
> + struct clk_sscg_pll_setup *temp_setup)
> +{
> + int ret = -EINVAL;
> +
> + for (temp_setup->divq = 0; temp_setup->divq <= PLL_DIVQ_MAX;
> + temp_setup->divq++) {
> + temp_setup->vco2 = temp_setup->vco1;
> + do_div(temp_setup->vco2, temp_setup->divr2 + 1);
> + temp_setup->vco2 *= 2;
> + temp_setup->vco2 *= temp_setup->divf2 + 1;
> + if (temp_setup->vco2 >= PLL_STAGE2_MIN_FREQ &&
> + temp_setup->vco2 <= PLL_STAGE2_MAX_FREQ) {
> + temp_setup->fout = temp_setup->vco2;
> + do_div(temp_setup->fout, 2 * (temp_setup->divq + 1));
> +
> + ret = clk_sscg_pll2_check_match(setup, temp_setup);
> + if (!ret) {
> + temp_setup->bypass = PLL_BYPASS1;
> + return ret;
> + }
> + }
> + }
> +
> + return ret;
> +}
> +
> +static int clk_sscg_divf2_lookup(struct clk_sscg_pll_setup *setup,
> + struct clk_sscg_pll_setup *temp_setup)
> +{
> + int ret = -EINVAL;
> +
> + for (temp_setup->divf2 = 0; temp_setup->divf2 <= PLL_DIVF2_MAX;
> + temp_setup->divf2++) {
> + ret = clk_sscg_divq_lookup(setup, temp_setup);
> + if (!ret)
> + return ret;
> + }
> +
> + return ret;
> +}
> +
> +static int clk_sscg_divr2_lookup(struct clk_sscg_pll_setup *setup,
> + struct clk_sscg_pll_setup *temp_setup)
> +{
> + int ret = -EINVAL;
> +
> + for (temp_setup->divr2 = 0; temp_setup->divr2 <= PLL_DIVR2_MAX;
> + temp_setup->divr2++) {
> + temp_setup->ref_div2 = temp_setup->vco1;
> + do_div(temp_setup->ref_div2, temp_setup->divr2 + 1);
> + if (temp_setup->ref_div2 >= PLL_STAGE2_REF_MIN_FREQ &&
> + temp_setup->ref_div2 <= PLL_STAGE2_REF_MAX_FREQ) {
> + ret = clk_sscg_divf2_lookup(setup, temp_setup);
> + if (!ret)
> + return ret;
> + }
> + }
> +
> + return ret;
> +}
> +
> +static int clk_sscg_pll2_find_setup(struct clk_sscg_pll_setup *setup,
> + struct clk_sscg_pll_setup *temp_setup,
> + uint64_t ref)
> +{
> +
> + int ret = -EINVAL;
> +
> + if (ref < PLL_STAGE1_MIN_FREQ || ref > PLL_STAGE1_MAX_FREQ)
> + return ret;
> +
> + temp_setup->vco1 = ref;
> +
> + ret = clk_sscg_divr2_lookup(setup, temp_setup);
> + return ret;
> +}
> +
> +static int clk_sscg_divf1_lookup(struct clk_sscg_pll_setup *setup,
> + struct clk_sscg_pll_setup *temp_setup)
> +{
> + int ret = -EINVAL;
> +
> + for (temp_setup->divf1 = 0; temp_setup->divf1 <= PLL_DIVF1_MAX;
> + temp_setup->divf1++) {
> + uint64_t vco1 = temp_setup->ref;
> +
> + do_div(vco1, temp_setup->divr1 + 1);
> + vco1 *= 2;
> + vco1 *= temp_setup->divf1 + 1;
> +
> + ret = clk_sscg_pll2_find_setup(setup, temp_setup, vco1);
> + if (!ret) {
> + temp_setup->bypass = PLL_BYPASS_NONE;
> + return ret;
> + }
> + }
> +
> + return ret;
> +}
> +
> +static int clk_sscg_divr1_lookup(struct clk_sscg_pll_setup *setup,
> + struct clk_sscg_pll_setup *temp_setup)
> +{
> + int ret = -EINVAL;
> +
> + for (temp_setup->divr1 = 0; temp_setup->divr1 <= PLL_DIVR1_MAX;
> + temp_setup->divr1++) {
> + temp_setup->ref_div1 = temp_setup->ref;
> + do_div(temp_setup->ref_div1, temp_setup->divr1 + 1);
> + if (temp_setup->ref_div1 >= PLL_STAGE1_REF_MIN_FREQ &&
> + temp_setup->ref_div1 <= PLL_STAGE1_REF_MAX_FREQ) {
> + ret = clk_sscg_divf1_lookup(setup, temp_setup);
> + if (!ret)
> + return ret;
> + }
> + }
> +
> + return ret;
> +}
> +
> +static int clk_sscg_pll1_find_setup(struct clk_sscg_pll_setup *setup,
> + struct clk_sscg_pll_setup *temp_setup,
> + uint64_t ref)
> +{
> +
> + int ret = -EINVAL;
> +
> + if (ref < PLL_REF_MIN_FREQ || ref > PLL_REF_MAX_FREQ)
> + return ret;
> +
> + temp_setup->ref = ref;
> +
> + ret = clk_sscg_divr1_lookup(setup, temp_setup);
> +
> + return ret;
> +}
> +
> +static int clk_sscg_pll_find_setup(struct clk_sscg_pll_setup *setup,
> + uint64_t prate,
> + uint64_t rate, int try_bypass)
> +{
> + struct clk_sscg_pll_setup temp_setup;
> + int ret = -EINVAL;
> +
> + memset(&temp_setup, 0, sizeof(struct clk_sscg_pll_setup));
> + memset(setup, 0, sizeof(struct clk_sscg_pll_setup));
> +
> + temp_setup.fout_error = PLL_OUT_MAX_FREQ;
> + temp_setup.fout_request = rate;
> +
> + switch (try_bypass) {
> +
> + case PLL_BYPASS2:
> + if (prate == rate) {
> + setup->bypass = PLL_BYPASS2;
> + setup->fout = rate;
> + ret = 0;
> + }
> + break;
> +
> + case PLL_BYPASS1:
> + ret = clk_sscg_pll2_find_setup(setup, &temp_setup, prate);
> + break;
> +
> + case PLL_BYPASS_NONE:
> + ret = clk_sscg_pll1_find_setup(setup, &temp_setup, prate);
> + break;
> + }
> +
> + return ret;
> +}
> +
> +
> +static int clk_sscg_pll_is_prepared(struct clk_hw *hw)
> +{
> + struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
> +
> + u32 val = readl_relaxed(pll->base + PLL_CFG0);
> +
> + return (val & PLL_PD_MASK) ? 0 : 1;
> +}
> +
> +static int clk_sscg_pll_prepare(struct clk_hw *hw)
> +{
> + struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
> + u32 val;
> +
> + val = readl_relaxed(pll->base + PLL_CFG0);
> + val &= ~PLL_PD_MASK;
> + writel_relaxed(val, pll->base + PLL_CFG0);
> +
> + return clk_sscg_pll_wait_lock(pll);
> +}
> +
> +static void clk_sscg_pll_unprepare(struct clk_hw *hw)
> +{
> + struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
> + u32 val;
> +
> + val = readl_relaxed(pll->base + PLL_CFG0);
> + val |= PLL_PD_MASK;
> + writel_relaxed(val, pll->base + PLL_CFG0);
> +}
> +
> +static unsigned long clk_sscg_pll_recalc_rate(struct clk_hw *hw,
> + unsigned long parent_rate)
> +{
> + struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
> + u32 val, divr1, divf1, divr2, divf2, divq;
> + u64 temp64;
> +
> + val = readl_relaxed(pll->base + PLL_CFG2);
> + divr1 = FIELD_GET(PLL_DIVR1_MASK, val);
> + divr2 = FIELD_GET(PLL_DIVR2_MASK, val);
> + divf1 = FIELD_GET(PLL_DIVF1_MASK, val);
> + divf2 = FIELD_GET(PLL_DIVF2_MASK, val);
> + divq = FIELD_GET(PLL_DIVQ_MASK, val);
> +
> + temp64 = parent_rate;
> +
> + val = readl(pll->base + PLL_CFG0);
> + if (val & SSCG_PLL_BYPASS2_MASK) {
> + temp64 = parent_rate;
> + } else if (val & SSCG_PLL_BYPASS1_MASK) {
> + temp64 *= divf2;
> + do_div(temp64, (divr2 + 1) * (divq + 1));
> + } else {
> + temp64 *= 2;
> + temp64 *= (divf1 + 1) * (divf2 + 1);
> + do_div(temp64, (divr1 + 1) * (divr2 + 1) * (divq + 1));
> + }
> +
> + return temp64;
> +}
> +
> +static int clk_sscg_pll_set_rate(struct clk_hw *hw, unsigned long rate,
> + unsigned long parent_rate)
> +{
> + struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
> + struct clk_sscg_pll_setup *setup = &pll->setup;
> + u32 val;
> +
> + /* set bypass here too since the parent might be the same */
> + val = readl(pll->base + PLL_CFG0);
> + val &= ~SSCG_PLL_BYPASS_MASK;
> + val |= FIELD_PREP(SSCG_PLL_BYPASS_MASK, setup->bypass);
> + writel(val, pll->base + PLL_CFG0);
> +
> + val = readl_relaxed(pll->base + PLL_CFG2);
> + val &= ~(PLL_DIVF1_MASK | PLL_DIVF2_MASK);
> + val &= ~(PLL_DIVR1_MASK | PLL_DIVR2_MASK | PLL_DIVQ_MASK);
> + val |= FIELD_PREP(PLL_DIVF1_MASK, setup->divf1);
> + val |= FIELD_PREP(PLL_DIVF2_MASK, setup->divf2);
> + val |= FIELD_PREP(PLL_DIVR1_MASK, setup->divr1);
> + val |= FIELD_PREP(PLL_DIVR2_MASK, setup->divr2);
> + val |= FIELD_PREP(PLL_DIVQ_MASK, setup->divq);
> + writel_relaxed(val, pll->base + PLL_CFG2);
> +
> + return clk_sscg_pll_wait_lock(pll);
> +}
> +
> +static u8 clk_sscg_pll_get_parent(struct clk_hw *hw)
> +{
> + struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
> + u32 val;
> + u8 ret = pll->parent;
> +
> + val = readl(pll->base + PLL_CFG0);
> + if (val & SSCG_PLL_BYPASS2_MASK)
> + ret = pll->bypass2;
> + else if (val & SSCG_PLL_BYPASS1_MASK)
> + ret = pll->bypass1;
> + return ret;
> +}
> +
> +static int clk_sscg_pll_set_parent(struct clk_hw *hw, u8 index)
> +{
> + struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
> + u32 val;
> +
> + val = readl(pll->base + PLL_CFG0);
> + val &= ~SSCG_PLL_BYPASS_MASK;
> + val |= FIELD_PREP(SSCG_PLL_BYPASS_MASK, pll->setup.bypass);
> + writel(val, pll->base + PLL_CFG0);
> +
> + return clk_sscg_pll_wait_lock(pll);
> +}
> +
> +static int __clk_sscg_pll_determine_rate(struct clk_hw *hw,
> + struct clk_rate_request *req,
> + uint64_t min,
> + uint64_t max,
> + uint64_t rate,
> + int bypass)
> +{
> + struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
> + struct clk_sscg_pll_setup *setup = &pll->setup;
> + struct clk_hw *parent_hw = NULL;
> + int bypass_parent_index;
> + int ret = -EINVAL;
> +
> + req->max_rate = max;
> + req->min_rate = min;
> +
> + switch (bypass) {
> + case PLL_BYPASS2:
> + bypass_parent_index = pll->bypass2;
> + break;
> + case PLL_BYPASS1:
> + bypass_parent_index = pll->bypass1;
> + break;
> + default:
> + bypass_parent_index = pll->parent;
> + break;
> + }
> +
> + parent_hw = clk_hw_get_parent_by_index(hw, bypass_parent_index);
> + ret = __clk_determine_rate(parent_hw, req);
> + if (!ret) {
> + ret = clk_sscg_pll_find_setup(setup, req->rate,
> + rate, bypass);
> + }
> +
> + req->best_parent_hw = parent_hw;
> + req->best_parent_rate = req->rate;
> + req->rate = setup->fout;
> +
> + return ret;
> +}
> +
> +static int clk_sscg_pll_determine_rate(struct clk_hw *hw,
> + struct clk_rate_request *req)
> +{
> + struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
> + struct clk_sscg_pll_setup *setup = &pll->setup;
> + uint64_t rate = req->rate;
> + uint64_t min = req->min_rate;
> + uint64_t max = req->max_rate;
> + int ret = -EINVAL;
> +
> + if (rate < PLL_OUT_MIN_FREQ || rate > PLL_OUT_MAX_FREQ)
> + return ret;
> +
> + ret = __clk_sscg_pll_determine_rate(hw, req, req->rate, req->rate,
> + rate, PLL_BYPASS2);
> + if (!ret)
> + return ret;
> +
> + ret = __clk_sscg_pll_determine_rate(hw, req, PLL_STAGE1_REF_MIN_FREQ,
> + PLL_STAGE1_REF_MAX_FREQ, rate,
> + PLL_BYPASS1);
> + if (!ret)
> + return ret;
> +
> + ret = __clk_sscg_pll_determine_rate(hw, req, PLL_REF_MIN_FREQ,
> + PLL_REF_MAX_FREQ, rate,
> + PLL_BYPASS_NONE);
> + if (!ret)
> + return ret;
> +
> + if (setup->fout >= min && setup->fout <= max)
> + ret = 0;
> +
> + return ret;
> +}
> +
> +static const struct clk_ops clk_sscg_pll_ops = {
> + .prepare = clk_sscg_pll_prepare,
> + .unprepare = clk_sscg_pll_unprepare,
> + .is_prepared = clk_sscg_pll_is_prepared,
> + .recalc_rate = clk_sscg_pll_recalc_rate,
> + .set_rate = clk_sscg_pll_set_rate,
> + .set_parent = clk_sscg_pll_set_parent,
> + .get_parent = clk_sscg_pll_get_parent,
> + .determine_rate = clk_sscg_pll_determine_rate,
> +};
> +
> +struct clk *imx_clk_sscg_pll(const char *name,
> + const char * const *parent_names,
> + u8 num_parents,
> + u8 parent, u8 bypass1, u8 bypass2,
> + void __iomem *base,
> + unsigned long flags)
> +{
> + struct clk_sscg_pll *pll;
> + struct clk_init_data init;
> + struct clk_hw *hw;
> + int ret;
> +
> + pll = kzalloc(sizeof(*pll), GFP_KERNEL);
> + if (!pll)
> + return ERR_PTR(-ENOMEM);
> +
> + pll->parent = parent;
> + pll->bypass1 = bypass1;
> + pll->bypass2 = bypass2;
> +
> + pll->base = base;
> + init.name = name;
> + init.ops = &clk_sscg_pll_ops;
> +
> + init.flags = flags;
> + init.parent_names = parent_names;
> + init.num_parents = num_parents;
> +
> + pll->base = base;
> + pll->hw.init = &init;
> +
> + hw = &pll->hw;
> +
> + ret = clk_hw_register(NULL, hw);
> + if (ret) {
> + kfree(pll);
> + return ERR_PTR(ret);
> + }
> +
> + return hw->clk;
> +}
> diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
> index 30ddbc1..9330632 100644
> --- a/drivers/clk/imx/clk.h
> +++ b/drivers/clk/imx/clk.h
> @@ -24,7 +24,7 @@ enum imx_pllv1_type {
> IMX_PLLV1_IMX35,
> };
>
> -enum imx_sccg_pll_type {
> +enum imx_sscg_pll_type {
> SCCG_PLL1,
> SCCG_PLL2,
> };
> @@ -109,7 +109,7 @@ struct clk *imx_clk_pllv2(const char *name, const char *parent,
> struct clk *imx_clk_frac_pll(const char *name, const char *parent_name,
> void __iomem *base);
>
> -struct clk *imx_clk_sccg_pll(const char *name,
> +struct clk *imx_clk_sscg_pll(const char *name,
> const char * const *parent_names,
> u8 num_parents,
> u8 parent, u8 bypass1, u8 bypass2,
>
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API
2019-11-22 10:48 [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Abel Vesa
` (10 preceding siblings ...)
2019-11-22 10:48 ` [PATCH v2 11/11] clk: imx7up: Rename the clks to hws Abel Vesa
@ 2019-12-09 3:39 ` Shawn Guo
11 siblings, 0 replies; 15+ messages in thread
From: Shawn Guo @ 2019-12-09 3:39 UTC (permalink / raw)
To: Abel Vesa
Cc: Aisheng Dong, Leonard Crestez, Stephen Boyd, Sascha Hauer,
Jacky Bai, Peng Fan, dl-linux-imx, linux-clk, linux-arm-kernel,
Linux Kernel Mailing List
On Fri, Nov 22, 2019 at 10:48:09AM +0000, Abel Vesa wrote:
> These changes are cleanups for the clk_hw based API i.MX clock drivers switch
> longterm effort. As mentioned in the commit messages, the end goal here is to
> have all the i.MX drivers use clk_hw based API only.
>
> I've put these all in a single patchset since they do not impact in any way
> the expected behavior of the drivers and they are quite obvious trivial ones.
> More patches to follow for the older i.MX platforms but those might not be as
> harmless (and trivial) as these ones.
>
> Changes since v1:
> - added a patch that takes care of the register function handling when the
> clk based API helpers are used, as suggested by Leonard Crestez.
> - Renamed the SCCG to SSCG, as suggested by Leonard Crestez.
>
> Abel Vesa (11):
> clk: imx: Add correct failure handling for clk based helpers
> clk: imx: Rename the SCCG to SSCG
> clk: imx: Replace all the clk based helpers with macros
> clk: imx: pllv1: Switch to clk_hw based API
> clk: imx: pllv2: Switch to clk_hw based API
> clk: imx: imx7ulp composite: Rename to show is clk_hw based
> clk: imx: Rename sccg and frac pll register to suggest clk_hw
> clk: imx: Rename the imx_clk_pllv4 to imply it's clk_hw based
> clk: imx: Rename the imx_clk_pfdv2 to imply it's clk_hw based
> clk: imx: Rename the imx_clk_divider_gate to imply it's clk_hw based
> clk: imx7up: Rename the clks to hws
I'm fine with the series. But it doesn't apply to my clk/imx branch.
Can you rebase and resend?
Shawn
^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2019-12-09 3:40 UTC | newest]
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2019-11-22 10:48 [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Abel Vesa
2019-11-22 10:48 ` [PATCH v2 01/11] clk: imx: Add correct failure handling for clk based helpers Abel Vesa
2019-11-22 21:48 ` Leonard Crestez
2019-11-22 10:48 ` [PATCH v2 02/11] clk: imx: Rename the SCCG to SSCG Abel Vesa
2019-11-22 21:50 ` Leonard Crestez
2019-11-22 10:48 ` [PATCH v2 04/11] clk: imx: pllv1: Switch to clk_hw based API Abel Vesa
2019-11-22 10:48 ` [PATCH v2 03/11] clk: imx: Replace all the clk based helpers with macros Abel Vesa
2019-11-22 10:48 ` [PATCH v2 05/11] clk: imx: pllv2: Switch to clk_hw based API Abel Vesa
2019-11-22 10:48 ` [PATCH v2 06/11] clk: imx: imx7ulp composite: Rename to show is clk_hw based Abel Vesa
2019-11-22 10:48 ` [PATCH v2 07/11] clk: imx: Rename sccg and frac pll register to suggest clk_hw Abel Vesa
2019-11-22 10:48 ` [PATCH v2 08/11] clk: imx: Rename the imx_clk_pllv4 to imply it's clk_hw based Abel Vesa
2019-11-22 10:48 ` [PATCH v2 09/11] clk: imx: Rename the imx_clk_pfdv2 " Abel Vesa
2019-11-22 10:48 ` [PATCH v2 10/11] clk: imx: Rename the imx_clk_divider_gate " Abel Vesa
2019-11-22 10:48 ` [PATCH v2 11/11] clk: imx7up: Rename the clks to hws Abel Vesa
2019-12-09 3:39 ` [PATCH v2 00/11] clk: imx: Trivial cleanups for clk_hw based API Shawn Guo
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