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pwm: img: Make use of devm_pwmchip_alloc() function

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This prepares the pwm-img 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/d99e00af2ff09cd3587d9a7c51dc8e0e13f85208.1707900770.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 10:31:33 +01:00
parent b097d28e33
commit 12ca0c331a
1 changed files with 5 additions and 8 deletions
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13
drivers/pwm/pwm-img.c
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@ -59,7 +59,6 @@ struct img_pwm_soc_data {
};
struct img_pwm_chip {
struct pwm_chip chip;
struct clk *pwm_clk;
struct clk *sys_clk;
void __iomem *base;
@ -73,7 +72,7 @@ struct img_pwm_chip {
static inline struct img_pwm_chip *to_img_pwm_chip(struct pwm_chip *chip)
{
return container_of(chip, struct img_pwm_chip, chip);
return pwmchip_get_drvdata(chip);
}
static inline void img_pwm_writel(struct img_pwm_chip *imgchip,
@ -263,10 +262,10 @@ static int img_pwm_probe(struct platform_device *pdev)
struct pwm_chip *chip;
struct img_pwm_chip *imgchip;
imgchip = devm_kzalloc(&pdev->dev, sizeof(*imgchip), GFP_KERNEL);
if (!imgchip)
return -ENOMEM;
chip = &imgchip->chip;
chip = devm_pwmchip_alloc(&pdev->dev, IMG_PWM_NPWM, sizeof(*imgchip));
if (IS_ERR(chip))
return PTR_ERR(chip);
imgchip = to_img_pwm_chip(chip);
imgchip->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(imgchip->base))
@ -318,9 +317,7 @@ static int img_pwm_probe(struct platform_device *pdev)
do_div(val, clk_rate);
imgchip->min_period_ns = val;
chip->dev = &pdev->dev;
chip->ops = &img_pwm_ops;
chip->npwm = IMG_PWM_NPWM;
ret = pwmchip_add(chip);
if (ret < 0) {