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pwm: twl-led: Make use of devm_pwmchip_alloc() function

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This prepares the pwm-twl-led 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/5bac90addb3a178ef958a2a524c6ec7e3eea3e6a.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 10:33:10 +01:00
parent e3ad4f23f9
commit b860648da1
1 changed files with 15 additions and 12 deletions
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27
drivers/pwm/pwm-twl-led.c
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@ -62,13 +62,12 @@
#define TWL6040_LED_MODE_MASK 0x03
struct twl_pwmled_chip {
struct pwm_chip chip;
struct mutex mutex;
};
static inline struct twl_pwmled_chip *to_twl(struct pwm_chip *chip)
{
return container_of(chip, struct twl_pwmled_chip, chip);
return pwmchip_get_drvdata(chip);
}
static int twl4030_pwmled_config(struct pwm_chip *chip, struct pwm_device *pwm,
@ -345,25 +344,29 @@ static const struct pwm_ops twl6030_pwmled_ops = {
static int twl_pwmled_probe(struct platform_device *pdev)
{
struct pwm_chip *chip;
struct twl_pwmled_chip *twl;
twl = devm_kzalloc(&pdev->dev, sizeof(*twl), GFP_KERNEL);
if (!twl)
return -ENOMEM;
unsigned int npwm;
const struct pwm_ops *ops;
if (twl_class_is_4030()) {
twl->chip.ops = &twl4030_pwmled_ops;
twl->chip.npwm = 2;
ops = &twl4030_pwmled_ops;
npwm = 2;
} else {
twl->chip.ops = &twl6030_pwmled_ops;
twl->chip.npwm = 1;
ops = &twl6030_pwmled_ops;
npwm = 1;
}
twl->chip.dev = &pdev->dev;
chip = devm_pwmchip_alloc(&pdev->dev, npwm, sizeof(*twl));
if (IS_ERR(chip))
return PTR_ERR(chip);
twl = to_twl(chip);
chip->ops = ops;
mutex_init(&twl->mutex);
return devm_pwmchip_add(&pdev->dev, &twl->chip);
return devm_pwmchip_add(&pdev->dev, chip);
}
#ifdef CONFIG_OF