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pwm: clps711x: Make use of devm_pwmchip_alloc() function

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This prepares the pwm-clps711x driver to further changes of the pwm core
outlined in the commit introducing devm_pwmchip_alloc(). There is no
intended semantical change and the driver should behave as before.

Link: https://lore.kernel.org/r/334e633bb8e4c26dc59883b068466387769b65f9.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König 2024-02-14 10:31:12 +01:00
parent 8e87e3dcb2
commit 5412170f10
1 changed files with 8 additions and 9 deletions
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17
drivers/pwm/pwm-clps711x.c
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@ -12,7 +12,6 @@
#include <linux/pwm.h> #include <linux/pwm.h>
struct clps711x_chip { struct clps711x_chip {
struct pwm_chip chip;
void __iomem *pmpcon; void __iomem *pmpcon;
struct clk *clk; struct clk *clk;
spinlock_t lock; spinlock_t lock;
@ -20,7 +19,7 @@ struct clps711x_chip {
static inline struct clps711x_chip *to_clps711x_chip(struct pwm_chip *chip) static inline struct clps711x_chip *to_clps711x_chip(struct pwm_chip *chip)
{ {
return container_of(chip, struct clps711x_chip, chip); return pwmchip_get_drvdata(chip);
} }
static int clps711x_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm) static int clps711x_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
@ -76,11 +75,13 @@ static const struct pwm_ops clps711x_pwm_ops = {
static int clps711x_pwm_probe(struct platform_device *pdev) static int clps711x_pwm_probe(struct platform_device *pdev)
{ {
struct pwm_chip *chip;
struct clps711x_chip *priv; struct clps711x_chip *priv;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); chip = devm_pwmchip_alloc(&pdev->dev, 2, sizeof(*priv));
if (!priv) if (IS_ERR(chip))
return -ENOMEM; return PTR_ERR(chip);
priv = to_clps711x_chip(chip);
priv->pmpcon = devm_platform_ioremap_resource(pdev, 0); priv->pmpcon = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(priv->pmpcon)) if (IS_ERR(priv->pmpcon))
@ -90,13 +91,11 @@ static int clps711x_pwm_probe(struct platform_device *pdev)
if (IS_ERR(priv->clk)) if (IS_ERR(priv->clk))
return PTR_ERR(priv->clk); return PTR_ERR(priv->clk);
priv->chip.ops = &clps711x_pwm_ops; chip->ops = &clps711x_pwm_ops;
priv->chip.dev = &pdev->dev;
priv->chip.npwm = 2;
spin_lock_init(&priv->lock); spin_lock_init(&priv->lock);
return devm_pwmchip_add(&pdev->dev, &priv->chip); return devm_pwmchip_add(&pdev->dev, chip);
} }
static const struct of_device_id __maybe_unused clps711x_pwm_dt_ids[] = { static const struct of_device_id __maybe_unused clps711x_pwm_dt_ids[] = {