iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

pwm: samsung: Make use of devm_pwmchip_alloc() function

Browse Source 
This prepares the pwm-samsung 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/f188e68bdea8d5a24277a10c8c9a6350a9c246ac.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 10:32:28 +01:00
parent f83c29f43d
commit 6727fdf748
1 changed files with 5 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/pwm/pwm-samsung.c
View File

@ -69,7 +69,6 @@ struct samsung_pwm_channel {
/**
* struct samsung_pwm_chip - private data of PWM chip
* @chip: generic PWM chip
* @variant: local copy of hardware variant data
* @inverter_mask: inverter status for all channels - one bit per channel
* @disabled_mask: disabled status for all channels - one bit per channel
@ -80,7 +79,6 @@ struct samsung_pwm_channel {
* @channel: per channel driver data
*/
struct samsung_pwm_chip {
struct pwm_chip chip;
struct samsung_pwm_variant variant;
u8 inverter_mask;
u8 disabled_mask;
@ -110,7 +108,7 @@ static DEFINE_SPINLOCK(samsung_pwm_lock);
static inline
struct samsung_pwm_chip *to_samsung_pwm_chip(struct pwm_chip *chip)
{
return container_of(chip, struct samsung_pwm_chip, chip);
return pwmchip_get_drvdata(chip);
}
static inline unsigned int to_tcon_channel(unsigned int channel)
@ -549,14 +547,12 @@ static int pwm_samsung_probe(struct platform_device *pdev)
unsigned int chan;
int ret;
our_chip = devm_kzalloc(&pdev->dev, sizeof(*our_chip), GFP_KERNEL);
if (our_chip == NULL)
return -ENOMEM;
chip = devm_pwmchip_alloc(&pdev->dev, SAMSUNG_PWM_NUM, sizeof(*our_chip));
if (IS_ERR(chip))
return PTR_ERR(chip);
our_chip = to_samsung_pwm_chip(chip);
chip = &our_chip->chip;
chip->dev = &pdev->dev;
chip->ops = &pwm_samsung_ops;
chip->npwm = SAMSUNG_PWM_NUM;
our_chip->inverter_mask = BIT(SAMSUNG_PWM_NUM) - 1;
if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) {