public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-08-05 16:54:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

pwm: lp3943: Make use of devm_pwmchip_alloc() function

Browse source 
This prepares the pwm-lp3943 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/44a2d303bb511e49c6db8aaedd17986c3aedde44.1707900770.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 10:31:46 +01:00
parent 15527ec252
commit e637713989
1 changed files with 8 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
drivers/pwm/pwm-lp3943.c
View file

@ -20,7 +20,6 @@
#define LP3943_MAX_PERIOD 1600000
struct lp3943_pwm {
struct pwm_chip chip;
struct lp3943 *lp3943;
struct lp3943_platform_data *pdata;
struct lp3943_pwm_map pwm_map[LP3943_NUM_PWMS];
@ -28,7 +27,7 @@ struct lp3943_pwm {
static inline struct lp3943_pwm *to_lp3943_pwm(struct pwm_chip *chip)
{
return container_of(chip, struct lp3943_pwm, chip);
return pwmchip_get_drvdata(chip);
}
static struct lp3943_pwm_map *
@ -273,12 +272,14 @@ static int lp3943_pwm_parse_dt(struct device *dev,
static int lp3943_pwm_probe(struct platform_device *pdev)
{
struct lp3943 *lp3943 = dev_get_drvdata(pdev->dev.parent);
struct pwm_chip *chip;
struct lp3943_pwm *lp3943_pwm;
int ret;
lp3943_pwm = devm_kzalloc(&pdev->dev, sizeof(*lp3943_pwm), GFP_KERNEL);
if (!lp3943_pwm)
return -ENOMEM;
chip = devm_pwmchip_alloc(&pdev->dev, LP3943_NUM_PWMS, sizeof(*lp3943_pwm));
if (IS_ERR(chip))
return PTR_ERR(chip);
lp3943_pwm = to_lp3943_pwm(chip);
lp3943_pwm->pdata = lp3943->pdata;
if (!lp3943_pwm->pdata) {
@ -292,11 +293,9 @@ static int lp3943_pwm_probe(struct platform_device *pdev)
}
lp3943_pwm->lp3943 = lp3943;
lp3943_pwm->chip.dev = &pdev->dev;
lp3943_pwm->chip.ops = &lp3943_pwm_ops;
lp3943_pwm->chip.npwm = LP3943_NUM_PWMS;
chip->ops = &lp3943_pwm_ops;
return devm_pwmchip_add(&pdev->dev, &lp3943_pwm->chip);
return devm_pwmchip_add(&pdev->dev, chip);
}
#ifdef CONFIG_OF