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leds: qcom-lpg: Make use of devm_pwmchip_alloc() function

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This prepares the pwm sub-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.

Acked-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/0be073477092eeccaac6c021cf07e38fc30c74fc.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 10:33:21 +01:00
parent 596de87ddf
commit 4b2b7b1e87
1 changed files with 10 additions and 6 deletions
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16
drivers/leds/rgb/leds-qcom-lpg.c
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@ -77,7 +77,7 @@ struct lpg {
struct mutex lock;
struct pwm_chip pwm;
struct pwm_chip *pwm;
const struct lpg_data *data;
@ -978,7 +978,7 @@ static int lpg_pattern_mc_clear(struct led_classdev *cdev)
static inline struct lpg *lpg_pwm_from_chip(struct pwm_chip *chip)
{
return container_of(chip, struct lpg, pwm);
return pwmchip_get_drvdata(chip);
}
static int lpg_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
@ -1093,13 +1093,17 @@ static const struct pwm_ops lpg_pwm_ops = {
static int lpg_add_pwm(struct lpg *lpg)
{
struct pwm_chip *chip;
int ret;
lpg->pwm.dev = lpg->dev;
lpg->pwm.npwm = lpg->num_channels;
lpg->pwm.ops = &lpg_pwm_ops;
lpg->pwm = chip = devm_pwmchip_alloc(lpg->dev, lpg->num_channels, 0);
if (IS_ERR(chip))
return PTR_ERR(chip);
ret = devm_pwmchip_add(lpg->dev, &lpg->pwm);
chip->ops = &lpg_pwm_ops;
pwmchip_set_drvdata(chip, lpg);
ret = devm_pwmchip_add(lpg->dev, chip);
if (ret)
dev_err_probe(lpg->dev, ret, "failed to add PWM chip\n");