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* [PATCH v5 0/2] This series adds support for RK3288 SoC integrated PWM
@ 2014-08-08  7:28 ` Caesar Wang
  0 siblings, 0 replies; 8+ messages in thread
From: Caesar Wang @ 2014-08-08  7:28 UTC (permalink / raw)
  To: thierry.reding, heiko, b.galvani, robh+dt, ijc+devicetree, galak,
	dianders
  Cc: cf, addy.ke, cjf, xjq, hj, linux-arm-kernel, linux-pwm,
	devicetree, linux-kernel, linux-doc, Caesar Wang

This patch will make applying on the top of Beniamino's submission,
the Beniamino's submission come from [1].

[1]:
    https://git.kernel.org/cgit/linux/kernel/git/thierry.reding/linux-pwm.git/log/?h=for-next

    Beniamino's submission won't be used from genenation Rockchip SoCs.
    So I have to add the new pwm for next genenation Rockchip SoCs.

    Tested on RK3288 SDK board.

Changes in v5:
    * address comments from Thierry Reding and Doug Anderson:
    - fix the symbolic names for registers. 

Changes in v4:
    * address comments from Heiko Stübner:
    - fix the copyright for ROCKCHIP, Inc. 
    - remove rockchip_pwm_set_enable_vop,then it instead of rockchip_pwm_set_enable_v2.

Changes in v3:
    * address comments from Thierry Reding:
    - fix PWM document deccribes. 
    - add a description for [PATCH v3 2/2].
    - renamed the PWM registers
    - Changed in rockchip_pwm_data struct
    - remove the devm_ioremap(),fixed in lcdc driver.

Changes in v2:
    * address comments from Beniamino Galvani:
    - remove #include <linux/of_address.h>. 
    - of_iomap be removed,and devm_ioremap replace it.
    - remove a line no be used.

Caesar Wang (2):
  pwm: rockchip: document RK3288 SoC compatible
  pwm: rockchip: Added to support for RK3288 SoC

 .../devicetree/bindings/pwm/pwm-rockchip.txt       |   5 +-
 drivers/pwm/pwm-rockchip.c                         | 134 +++++++++++++++++----
 2 files changed, 114 insertions(+), 25 deletions(-)

-- 
1.9.1



^ permalink raw reply	[flat|nested] 8+ messages in thread

* [PATCH v5 0/2] This series adds support for RK3288 SoC integrated PWM
@ 2014-08-08  7:28 ` Caesar Wang
  0 siblings, 0 replies; 8+ messages in thread
From: Caesar Wang @ 2014-08-08  7:28 UTC (permalink / raw)
  To: linux-arm-kernel

This patch will make applying on the top of Beniamino's submission,
the Beniamino's submission come from [1].

[1]:
    https://git.kernel.org/cgit/linux/kernel/git/thierry.reding/linux-pwm.git/log/?h=for-next

    Beniamino's submission won't be used from genenation Rockchip SoCs.
    So I have to add the new pwm for next genenation Rockchip SoCs.

    Tested on RK3288 SDK board.

Changes in v5:
    * address comments from Thierry Reding and Doug Anderson:
    - fix the symbolic names for registers. 

Changes in v4:
    * address comments from Heiko St?bner:
    - fix the copyright for ROCKCHIP, Inc. 
    - remove rockchip_pwm_set_enable_vop,then it instead of rockchip_pwm_set_enable_v2.

Changes in v3:
    * address comments from Thierry Reding:
    - fix PWM document deccribes. 
    - add a description for [PATCH v3 2/2].
    - renamed the PWM registers
    - Changed in rockchip_pwm_data struct
    - remove the devm_ioremap(),fixed in lcdc driver.

Changes in v2:
    * address comments from Beniamino Galvani:
    - remove #include <linux/of_address.h>. 
    - of_iomap be removed,and devm_ioremap replace it.
    - remove a line no be used.

Caesar Wang (2):
  pwm: rockchip: document RK3288 SoC compatible
  pwm: rockchip: Added to support for RK3288 SoC

 .../devicetree/bindings/pwm/pwm-rockchip.txt       |   5 +-
 drivers/pwm/pwm-rockchip.c                         | 134 +++++++++++++++++----
 2 files changed, 114 insertions(+), 25 deletions(-)

-- 
1.9.1

^ permalink raw reply	[flat|nested] 8+ messages in thread

* [PATCH v5 1/2] pwm: rockchip: document RK3288 SoC compatible
  2014-08-08  7:28 ` Caesar Wang
@ 2014-08-08  7:28   ` Caesar Wang
  -1 siblings, 0 replies; 8+ messages in thread
From: Caesar Wang @ 2014-08-08  7:28 UTC (permalink / raw)
  To: thierry.reding, heiko, b.galvani, robh+dt, ijc+devicetree, galak,
	dianders
  Cc: cf, addy.ke, cjf, xjq, hj, linux-arm-kernel, linux-pwm,
	devicetree, linux-kernel, linux-doc, Caesar Wang

Document new compatible for PWM founding on RK3288 SoC

Signed-off-by: Caesar Wang <caesar.wang@rock-chips.com>
---
 Documentation/devicetree/bindings/pwm/pwm-rockchip.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
index 3182126..d47d15a 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
@@ -1,7 +1,10 @@
 Rockchip PWM controller
 
 Required properties:
- - compatible: should be "rockchip,rk2928-pwm"
+ - compatible: should be "rockchip,<name>-pwm"
+   "rockchip,rk2928-pwm": found on RK29XX,RK3066 and RK3188 SoCs
+   "rockchip,rk3288-pwm": found on RK3288 SoC
+   "rockchip,vop-pwm": found integrated in VOP on RK3288 SoC
  - reg: physical base address and length of the controller's registers
  - clocks: phandle and clock specifier of the PWM reference clock
  - #pwm-cells: should be 2. See pwm.txt in this directory for a
-- 
1.9.1



^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH v5 1/2] pwm: rockchip: document RK3288 SoC compatible
@ 2014-08-08  7:28   ` Caesar Wang
  0 siblings, 0 replies; 8+ messages in thread
From: Caesar Wang @ 2014-08-08  7:28 UTC (permalink / raw)
  To: linux-arm-kernel

Document new compatible for PWM founding on RK3288 SoC

Signed-off-by: Caesar Wang <caesar.wang@rock-chips.com>
---
 Documentation/devicetree/bindings/pwm/pwm-rockchip.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
index 3182126..d47d15a 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
@@ -1,7 +1,10 @@
 Rockchip PWM controller
 
 Required properties:
- - compatible: should be "rockchip,rk2928-pwm"
+ - compatible: should be "rockchip,<name>-pwm"
+   "rockchip,rk2928-pwm": found on RK29XX,RK3066 and RK3188 SoCs
+   "rockchip,rk3288-pwm": found on RK3288 SoC
+   "rockchip,vop-pwm": found integrated in VOP on RK3288 SoC
  - reg: physical base address and length of the controller's registers
  - clocks: phandle and clock specifier of the PWM reference clock
  - #pwm-cells: should be 2. See pwm.txt in this directory for a
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH v5 2/2] pwm: rockchip: Added to support for RK3288 SoC
  2014-08-08  7:28 ` Caesar Wang
@ 2014-08-08  7:28   ` Caesar Wang
  -1 siblings, 0 replies; 8+ messages in thread
From: Caesar Wang @ 2014-08-08  7:28 UTC (permalink / raw)
  To: thierry.reding, heiko, b.galvani, robh+dt, ijc+devicetree, galak,
	dianders
  Cc: cf, addy.ke, cjf, xjq, hj, linux-arm-kernel, linux-pwm,
	devicetree, linux-kernel, linux-doc, Caesar Wang

This patch added to support the PWM controller found on
RK3288 SoC.

Signed-off-by: Caesar Wang <caesar.wang@rock-chips.com>
---
 drivers/pwm/pwm-rockchip.c | 134 +++++++++++++++++++++++++++++++++++++--------
 1 file changed, 110 insertions(+), 24 deletions(-)

diff --git a/drivers/pwm/pwm-rockchip.c b/drivers/pwm/pwm-rockchip.c
index eec2145..a40db15 100644
--- a/drivers/pwm/pwm-rockchip.c
+++ b/drivers/pwm/pwm-rockchip.c
@@ -2,6 +2,7 @@
  * PWM driver for Rockchip SoCs
  *
  * Copyright (C) 2014 Beniamino Galvani <b.galvani@gmail.com>
+ * Copyright (C) 2014 ROCKCHIP, Inc.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -12,30 +13,80 @@
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/pwm.h>
 #include <linux/time.h>
 
-#define PWM_CNTR		0x00		/* Counter register */
-#define PWM_HRC			0x04		/* High reference register */
-#define PWM_LRC			0x08		/* Low reference register */
-#define PWM_CTRL		0x0c		/* Control register */
 #define PWM_CTRL_TIMER_EN	(1 << 0)
 #define PWM_CTRL_OUTPUT_EN	(1 << 3)
 
-#define PRESCALER		2
+#define PWM_ENABLE		(1 << 0)
+#define PWM_CONTINUOUS		(1 << 1)
+#define PWM_DUTY_POSITIVE	(1 << 3)
+#define PWM_INACTIVE_NEGATIVE	(0 << 4)
+#define PWM_OUTPUT_LEFT		(0 << 5)
+#define PWM_LP_DISABLE		(0 << 8)
 
 struct rockchip_pwm_chip {
 	struct pwm_chip chip;
 	struct clk *clk;
+	const struct rockchip_pwm_data *data;
 	void __iomem *base;
 };
 
+struct rockchip_pwm_regs {
+	unsigned long duty;
+	unsigned long period;
+	unsigned long cntr;
+	unsigned long ctrl;
+};
+
+struct rockchip_pwm_data {
+	struct rockchip_pwm_regs regs;
+	unsigned int prescaler;
+
+	void (*set_enable)(struct pwm_chip *chip, bool enable);
+};
+
 static inline struct rockchip_pwm_chip *to_rockchip_pwm_chip(struct pwm_chip *c)
 {
 	return container_of(c, struct rockchip_pwm_chip, chip);
 }
 
+static void rockchip_pwm_set_enable_v1(struct pwm_chip *chip, bool enable)
+{
+	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);
+	u32 val = 0;
+	u32 enable_conf = PWM_CTRL_OUTPUT_EN | PWM_CTRL_TIMER_EN;
+
+	val = readl_relaxed(pc->base + pc->data->regs.ctrl);
+
+	if (enable)
+		val |= enable_conf;
+	else
+		val &= ~enable_conf;
+
+	writel_relaxed(val, pc->base + pc->data->regs.ctrl);
+}
+
+static void rockchip_pwm_set_enable_v2(struct pwm_chip *chip, bool enable)
+{
+	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);
+	u32 val = 0;
+	u32 enable_conf = PWM_OUTPUT_LEFT | PWM_LP_DISABLE | PWM_ENABLE |
+		PWM_CONTINUOUS | PWM_DUTY_POSITIVE | PWM_INACTIVE_NEGATIVE;
+
+	val = readl_relaxed(pc->base + pc->data->regs.ctrl);
+
+	if (enable)
+		val |= enable_conf;
+	else
+		val &= ~enable_conf;
+
+	writel_relaxed(val, pc->base + pc->data->regs.ctrl);
+}
+
 static int rockchip_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 			       int duty_ns, int period_ns)
 {
@@ -52,20 +103,20 @@ static int rockchip_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 	 * default prescaler value for all practical clock rate values.
 	 */
 	div = clk_rate * period_ns;
-	do_div(div, PRESCALER * NSEC_PER_SEC);
+	do_div(div, pc->data->prescaler * NSEC_PER_SEC);
 	period = div;
 
 	div = clk_rate * duty_ns;
-	do_div(div, PRESCALER * NSEC_PER_SEC);
+	do_div(div, pc->data->prescaler * NSEC_PER_SEC);
 	duty = div;
 
 	ret = clk_enable(pc->clk);
 	if (ret)
 		return ret;
 
-	writel(period, pc->base + PWM_LRC);
-	writel(duty, pc->base + PWM_HRC);
-	writel(0, pc->base + PWM_CNTR);
+	writel(period, pc->base + pc->data->regs.period);
+	writel(duty, pc->base + pc->data->regs.duty);
+	writel(0, pc->base + pc->data->regs.cntr);
 
 	clk_disable(pc->clk);
 
@@ -76,15 +127,12 @@ static int rockchip_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
 {
 	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);
 	int ret;
-	u32 val;
 
 	ret = clk_enable(pc->clk);
 	if (ret)
 		return ret;
 
-	val = readl_relaxed(pc->base + PWM_CTRL);
-	val |= PWM_CTRL_OUTPUT_EN | PWM_CTRL_TIMER_EN;
-	writel_relaxed(val, pc->base + PWM_CTRL);
+	pc->data->set_enable(chip, true);
 
 	return 0;
 }
@@ -92,11 +140,8 @@ static int rockchip_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
 static void rockchip_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
 {
 	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);
-	u32 val;
 
-	val = readl_relaxed(pc->base + PWM_CTRL);
-	val &= ~(PWM_CTRL_OUTPUT_EN | PWM_CTRL_TIMER_EN);
-	writel_relaxed(val, pc->base + PWM_CTRL);
+	pc->data->set_enable(chip, false);
 
 	clk_disable(pc->clk);
 }
@@ -108,12 +153,58 @@ static const struct pwm_ops rockchip_pwm_ops = {
 	.owner = THIS_MODULE,
 };
 
+static const struct rockchip_pwm_data pwm_data_v1 = {
+	.regs = {
+		.duty = 0x04,
+		.period = 0x08,
+		.cntr = 0x00,
+		.ctrl = 0x0c,
+	},
+	.prescaler = 2,
+	.set_enable = rockchip_pwm_set_enable_v1,
+};
+
+static const struct rockchip_pwm_data pwm_data_v2 = {
+	.regs = {
+		.duty = 0x08,
+		.period = 0x04,
+		.cntr = 0x00,
+		.ctrl = 0x0c,
+	},
+	.prescaler = 1,
+	.set_enable = rockchip_pwm_set_enable_v2,
+};
+
+static const struct rockchip_pwm_data pwm_data_vop = {
+	.regs = {
+		.duty = 0x08,
+		.period = 0x04,
+		.cntr = 0x0c,
+		.ctrl = 0x00,
+	},
+	.prescaler = 1,
+	.set_enable = rockchip_pwm_set_enable_v2,
+};
+
+static const struct of_device_id rockchip_pwm_dt_ids[] = {
+	{ .compatible = "rockchip,rk2928-pwm", .data = &pwm_data_v1},
+	{ .compatible = "rockchip,rk3288-pwm", .data = &pwm_data_v2},
+	{ .compatible = "rockchip,vop-pwm", .data = &pwm_data_vop},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, rockchip_pwm_dt_ids);
+
 static int rockchip_pwm_probe(struct platform_device *pdev)
 {
+	const struct of_device_id *id;
 	struct rockchip_pwm_chip *pc;
 	struct resource *r;
 	int ret;
 
+	id = of_match_device(rockchip_pwm_dt_ids, &pdev->dev);
+	if (!id)
+		return -EINVAL;
+
 	pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL);
 	if (!pc)
 		return -ENOMEM;
@@ -133,6 +224,7 @@ static int rockchip_pwm_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, pc);
 
+	pc->data = id->data;
 	pc->chip.dev = &pdev->dev;
 	pc->chip.ops = &rockchip_pwm_ops;
 	pc->chip.base = -1;
@@ -156,12 +248,6 @@ static int rockchip_pwm_remove(struct platform_device *pdev)
 	return pwmchip_remove(&pc->chip);
 }
 
-static const struct of_device_id rockchip_pwm_dt_ids[] = {
-	{ .compatible = "rockchip,rk2928-pwm" },
-	{ /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, rockchip_pwm_dt_ids);
-
 static struct platform_driver rockchip_pwm_driver = {
 	.driver = {
 		.name = "rockchip-pwm",
-- 
1.9.1



^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH v5 2/2] pwm: rockchip: Added to support for RK3288 SoC
@ 2014-08-08  7:28   ` Caesar Wang
  0 siblings, 0 replies; 8+ messages in thread
From: Caesar Wang @ 2014-08-08  7:28 UTC (permalink / raw)
  To: linux-arm-kernel

This patch added to support the PWM controller found on
RK3288 SoC.

Signed-off-by: Caesar Wang <caesar.wang@rock-chips.com>
---
 drivers/pwm/pwm-rockchip.c | 134 +++++++++++++++++++++++++++++++++++++--------
 1 file changed, 110 insertions(+), 24 deletions(-)

diff --git a/drivers/pwm/pwm-rockchip.c b/drivers/pwm/pwm-rockchip.c
index eec2145..a40db15 100644
--- a/drivers/pwm/pwm-rockchip.c
+++ b/drivers/pwm/pwm-rockchip.c
@@ -2,6 +2,7 @@
  * PWM driver for Rockchip SoCs
  *
  * Copyright (C) 2014 Beniamino Galvani <b.galvani@gmail.com>
+ * Copyright (C) 2014 ROCKCHIP, Inc.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -12,30 +13,80 @@
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/pwm.h>
 #include <linux/time.h>
 
-#define PWM_CNTR		0x00		/* Counter register */
-#define PWM_HRC			0x04		/* High reference register */
-#define PWM_LRC			0x08		/* Low reference register */
-#define PWM_CTRL		0x0c		/* Control register */
 #define PWM_CTRL_TIMER_EN	(1 << 0)
 #define PWM_CTRL_OUTPUT_EN	(1 << 3)
 
-#define PRESCALER		2
+#define PWM_ENABLE		(1 << 0)
+#define PWM_CONTINUOUS		(1 << 1)
+#define PWM_DUTY_POSITIVE	(1 << 3)
+#define PWM_INACTIVE_NEGATIVE	(0 << 4)
+#define PWM_OUTPUT_LEFT		(0 << 5)
+#define PWM_LP_DISABLE		(0 << 8)
 
 struct rockchip_pwm_chip {
 	struct pwm_chip chip;
 	struct clk *clk;
+	const struct rockchip_pwm_data *data;
 	void __iomem *base;
 };
 
+struct rockchip_pwm_regs {
+	unsigned long duty;
+	unsigned long period;
+	unsigned long cntr;
+	unsigned long ctrl;
+};
+
+struct rockchip_pwm_data {
+	struct rockchip_pwm_regs regs;
+	unsigned int prescaler;
+
+	void (*set_enable)(struct pwm_chip *chip, bool enable);
+};
+
 static inline struct rockchip_pwm_chip *to_rockchip_pwm_chip(struct pwm_chip *c)
 {
 	return container_of(c, struct rockchip_pwm_chip, chip);
 }
 
+static void rockchip_pwm_set_enable_v1(struct pwm_chip *chip, bool enable)
+{
+	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);
+	u32 val = 0;
+	u32 enable_conf = PWM_CTRL_OUTPUT_EN | PWM_CTRL_TIMER_EN;
+
+	val = readl_relaxed(pc->base + pc->data->regs.ctrl);
+
+	if (enable)
+		val |= enable_conf;
+	else
+		val &= ~enable_conf;
+
+	writel_relaxed(val, pc->base + pc->data->regs.ctrl);
+}
+
+static void rockchip_pwm_set_enable_v2(struct pwm_chip *chip, bool enable)
+{
+	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);
+	u32 val = 0;
+	u32 enable_conf = PWM_OUTPUT_LEFT | PWM_LP_DISABLE | PWM_ENABLE |
+		PWM_CONTINUOUS | PWM_DUTY_POSITIVE | PWM_INACTIVE_NEGATIVE;
+
+	val = readl_relaxed(pc->base + pc->data->regs.ctrl);
+
+	if (enable)
+		val |= enable_conf;
+	else
+		val &= ~enable_conf;
+
+	writel_relaxed(val, pc->base + pc->data->regs.ctrl);
+}
+
 static int rockchip_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 			       int duty_ns, int period_ns)
 {
@@ -52,20 +103,20 @@ static int rockchip_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 	 * default prescaler value for all practical clock rate values.
 	 */
 	div = clk_rate * period_ns;
-	do_div(div, PRESCALER * NSEC_PER_SEC);
+	do_div(div, pc->data->prescaler * NSEC_PER_SEC);
 	period = div;
 
 	div = clk_rate * duty_ns;
-	do_div(div, PRESCALER * NSEC_PER_SEC);
+	do_div(div, pc->data->prescaler * NSEC_PER_SEC);
 	duty = div;
 
 	ret = clk_enable(pc->clk);
 	if (ret)
 		return ret;
 
-	writel(period, pc->base + PWM_LRC);
-	writel(duty, pc->base + PWM_HRC);
-	writel(0, pc->base + PWM_CNTR);
+	writel(period, pc->base + pc->data->regs.period);
+	writel(duty, pc->base + pc->data->regs.duty);
+	writel(0, pc->base + pc->data->regs.cntr);
 
 	clk_disable(pc->clk);
 
@@ -76,15 +127,12 @@ static int rockchip_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
 {
 	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);
 	int ret;
-	u32 val;
 
 	ret = clk_enable(pc->clk);
 	if (ret)
 		return ret;
 
-	val = readl_relaxed(pc->base + PWM_CTRL);
-	val |= PWM_CTRL_OUTPUT_EN | PWM_CTRL_TIMER_EN;
-	writel_relaxed(val, pc->base + PWM_CTRL);
+	pc->data->set_enable(chip, true);
 
 	return 0;
 }
@@ -92,11 +140,8 @@ static int rockchip_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
 static void rockchip_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
 {
 	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);
-	u32 val;
 
-	val = readl_relaxed(pc->base + PWM_CTRL);
-	val &= ~(PWM_CTRL_OUTPUT_EN | PWM_CTRL_TIMER_EN);
-	writel_relaxed(val, pc->base + PWM_CTRL);
+	pc->data->set_enable(chip, false);
 
 	clk_disable(pc->clk);
 }
@@ -108,12 +153,58 @@ static const struct pwm_ops rockchip_pwm_ops = {
 	.owner = THIS_MODULE,
 };
 
+static const struct rockchip_pwm_data pwm_data_v1 = {
+	.regs = {
+		.duty = 0x04,
+		.period = 0x08,
+		.cntr = 0x00,
+		.ctrl = 0x0c,
+	},
+	.prescaler = 2,
+	.set_enable = rockchip_pwm_set_enable_v1,
+};
+
+static const struct rockchip_pwm_data pwm_data_v2 = {
+	.regs = {
+		.duty = 0x08,
+		.period = 0x04,
+		.cntr = 0x00,
+		.ctrl = 0x0c,
+	},
+	.prescaler = 1,
+	.set_enable = rockchip_pwm_set_enable_v2,
+};
+
+static const struct rockchip_pwm_data pwm_data_vop = {
+	.regs = {
+		.duty = 0x08,
+		.period = 0x04,
+		.cntr = 0x0c,
+		.ctrl = 0x00,
+	},
+	.prescaler = 1,
+	.set_enable = rockchip_pwm_set_enable_v2,
+};
+
+static const struct of_device_id rockchip_pwm_dt_ids[] = {
+	{ .compatible = "rockchip,rk2928-pwm", .data = &pwm_data_v1},
+	{ .compatible = "rockchip,rk3288-pwm", .data = &pwm_data_v2},
+	{ .compatible = "rockchip,vop-pwm", .data = &pwm_data_vop},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, rockchip_pwm_dt_ids);
+
 static int rockchip_pwm_probe(struct platform_device *pdev)
 {
+	const struct of_device_id *id;
 	struct rockchip_pwm_chip *pc;
 	struct resource *r;
 	int ret;
 
+	id = of_match_device(rockchip_pwm_dt_ids, &pdev->dev);
+	if (!id)
+		return -EINVAL;
+
 	pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL);
 	if (!pc)
 		return -ENOMEM;
@@ -133,6 +224,7 @@ static int rockchip_pwm_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, pc);
 
+	pc->data = id->data;
 	pc->chip.dev = &pdev->dev;
 	pc->chip.ops = &rockchip_pwm_ops;
 	pc->chip.base = -1;
@@ -156,12 +248,6 @@ static int rockchip_pwm_remove(struct platform_device *pdev)
 	return pwmchip_remove(&pc->chip);
 }
 
-static const struct of_device_id rockchip_pwm_dt_ids[] = {
-	{ .compatible = "rockchip,rk2928-pwm" },
-	{ /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, rockchip_pwm_dt_ids);
-
 static struct platform_driver rockchip_pwm_driver = {
 	.driver = {
 		.name = "rockchip-pwm",
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 8+ messages in thread

* Re: [PATCH v5 0/2] This series adds support for RK3288 SoC integrated PWM
  2014-08-08  7:28 ` Caesar Wang
@ 2014-08-08 11:12   ` Thierry Reding
  -1 siblings, 0 replies; 8+ messages in thread
From: Thierry Reding @ 2014-08-08 11:12 UTC (permalink / raw)
  To: Caesar Wang
  Cc: heiko, b.galvani, robh+dt, ijc+devicetree, galak, dianders, cf,
	addy.ke, cjf, xjq, hj, linux-arm-kernel, linux-pwm, devicetree,
	linux-kernel, linux-doc

[-- Attachment #1: Type: text/plain, Size: 257 bytes --]

On Fri, Aug 08, 2014 at 03:28:47PM +0800, Caesar Wang wrote:
> This patch will make applying on the top of Beniamino's submission,
> the Beniamino's submission come from [1].

Both patches applied (with last-minute minor stylistic fixups), thanks.

Thierry

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^ permalink raw reply	[flat|nested] 8+ messages in thread

* [PATCH v5 0/2] This series adds support for RK3288 SoC integrated PWM
@ 2014-08-08 11:12   ` Thierry Reding
  0 siblings, 0 replies; 8+ messages in thread
From: Thierry Reding @ 2014-08-08 11:12 UTC (permalink / raw)
  To: linux-arm-kernel

On Fri, Aug 08, 2014 at 03:28:47PM +0800, Caesar Wang wrote:
> This patch will make applying on the top of Beniamino's submission,
> the Beniamino's submission come from [1].

Both patches applied (with last-minute minor stylistic fixups), thanks.

Thierry
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^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2014-08-08 11:12 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-08-08  7:28 [PATCH v5 0/2] This series adds support for RK3288 SoC integrated PWM Caesar Wang
2014-08-08  7:28 ` Caesar Wang
2014-08-08  7:28 ` [PATCH v5 1/2] pwm: rockchip: document RK3288 SoC compatible Caesar Wang
2014-08-08  7:28   ` Caesar Wang
2014-08-08  7:28 ` [PATCH v5 2/2] pwm: rockchip: Added to support for RK3288 SoC Caesar Wang
2014-08-08  7:28   ` Caesar Wang
2014-08-08 11:12 ` [PATCH v5 0/2] This series adds support for RK3288 SoC integrated PWM Thierry Reding
2014-08-08 11:12   ` Thierry Reding

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