Merging upstream version 6.7.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 10 insertions, 53 deletions

diff --git a/drivers/pwm/pwm-berlin.c b/drivers/pwm/pwm-berlin.c
index 0971c666a..ba2d79991 100644
--- a/drivers/pwm/pwm-berlin.c
+++ b/drivers/pwm/pwm-berlin.c
@@ -39,6 +39,8 @@
 #define BERLIN_PWM_TCNT			0xc
 #define  BERLIN_PWM_MAX_TCNT		65535
 
+#define BERLIN_PWM_NUMPWMS		4
+
 struct berlin_pwm_channel {
 	u32 enable;
 	u32 ctrl;
@@ -50,6 +52,7 @@ struct berlin_pwm_chip {
 	struct pwm_chip chip;
 	struct clk *clk;
 	void __iomem *base;
+	struct berlin_pwm_channel channel[BERLIN_PWM_NUMPWMS];
 };
 
 static inline struct berlin_pwm_chip *to_berlin_pwm_chip(struct pwm_chip *chip)
@@ -70,24 +73,6 @@ static inline void berlin_pwm_writel(struct berlin_pwm_chip *bpc,
 	writel_relaxed(value, bpc->base + channel * 0x10 + offset);
 }
 
-static int berlin_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
-{
-	struct berlin_pwm_channel *channel;
-
-	channel = kzalloc(sizeof(*channel), GFP_KERNEL);
-	if (!channel)
-		return -ENOMEM;
-
-	return pwm_set_chip_data(pwm, channel);
-}
-
-static void berlin_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
-{
-	struct berlin_pwm_channel *channel = pwm_get_chip_data(pwm);
-
-	kfree(channel);
-}
-
 static int berlin_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 			     u64 duty_ns, u64 period_ns)
 {
@@ -202,10 +187,7 @@ static int berlin_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 }
 
 static const struct pwm_ops berlin_pwm_ops = {
-	.request = berlin_pwm_request,
-	.free = berlin_pwm_free,
 	.apply = berlin_pwm_apply,
-	.owner = THIS_MODULE,
 };
 
 static const struct of_device_id berlin_pwm_match[] = {
@@ -227,39 +209,23 @@ static int berlin_pwm_probe(struct platform_device *pdev)
 	if (IS_ERR(bpc->base))
 		return PTR_ERR(bpc->base);
 
-	bpc->clk = devm_clk_get(&pdev->dev, NULL);
+	bpc->clk = devm_clk_get_enabled(&pdev->dev, NULL);
 	if (IS_ERR(bpc->clk))
 		return PTR_ERR(bpc->clk);
 
-	ret = clk_prepare_enable(bpc->clk);
-	if (ret)
-		return ret;
-
 	bpc->chip.dev = &pdev->dev;
 	bpc->chip.ops = &berlin_pwm_ops;
-	bpc->chip.npwm = 4;
+	bpc->chip.npwm = BERLIN_PWM_NUMPWMS;
 
-	ret = pwmchip_add(&bpc->chip);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "failed to add PWM chip: %d\n", ret);
-		clk_disable_unprepare(bpc->clk);
-		return ret;
-	}
+	ret = devm_pwmchip_add(&pdev->dev, &bpc->chip);
+	if (ret < 0)
+		return dev_err_probe(&pdev->dev, ret, "failed to add PWM chip\n");
 
 	platform_set_drvdata(pdev, bpc);
 
 	return 0;
 }
 
-static void berlin_pwm_remove(struct platform_device *pdev)
-{
-	struct berlin_pwm_chip *bpc = platform_get_drvdata(pdev);
-
-	pwmchip_remove(&bpc->chip);
-
-	clk_disable_unprepare(bpc->clk);
-}
-
 #ifdef CONFIG_PM_SLEEP
 static int berlin_pwm_suspend(struct device *dev)
 {
@@ -267,11 +233,7 @@ static int berlin_pwm_suspend(struct device *dev)
 	unsigned int i;
 
 	for (i = 0; i < bpc->chip.npwm; i++) {
-		struct berlin_pwm_channel *channel;
-
-		channel = pwm_get_chip_data(&bpc->chip.pwms[i]);
-		if (!channel)
-			continue;
+		struct berlin_pwm_channel *channel = &bpc->channel[i];
 
 		channel->enable = berlin_pwm_readl(bpc, i, BERLIN_PWM_ENABLE);
 		channel->ctrl = berlin_pwm_readl(bpc, i, BERLIN_PWM_CONTROL);
@@ -295,11 +257,7 @@ static int berlin_pwm_resume(struct device *dev)
 		return ret;
 
 	for (i = 0; i < bpc->chip.npwm; i++) {
-		struct berlin_pwm_channel *channel;
-
-		channel = pwm_get_chip_data(&bpc->chip.pwms[i]);
-		if (!channel)
-			continue;
+		struct berlin_pwm_channel *channel = &bpc->channel[i];
 
 		berlin_pwm_writel(bpc, i, channel->ctrl, BERLIN_PWM_CONTROL);
 		berlin_pwm_writel(bpc, i, channel->duty, BERLIN_PWM_DUTY);
@@ -316,7 +274,6 @@ static SIMPLE_DEV_PM_OPS(berlin_pwm_pm_ops, berlin_pwm_suspend,
 
 static struct platform_driver berlin_pwm_driver = {
 	.probe = berlin_pwm_probe,
-	.remove_new = berlin_pwm_remove,
 	.driver = {
 		.name = "berlin-pwm",
 		.of_match_table = berlin_pwm_match,