diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2023-09-29 18:19:14 +0200 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2023-10-13 10:07:18 +0200 |
| commit | d8a2f6f26a079f3d0a34b6146e332797218cb5de (patch) | |
| tree | da448ffa64989aea1b7f2639e45835469070829b /drivers/pwm | |
| parent | 4f9ab6902b8e74452426686a453e01787846d028 (diff) | |
pwm: sprd: Provide a helper to cast a chip to driver data
Similar to most other PWM drivers provide a static inline function to
calculate driver data from a given pwmchip.
Link: https://lore.kernel.org/r/20230929161918.2410424-8-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-sprd.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/pwm/pwm-sprd.c b/drivers/pwm/pwm-sprd.c index dfda2152a7c1..98a36ff7df7b 100644 --- a/drivers/pwm/pwm-sprd.c +++ b/drivers/pwm/pwm-sprd.c @@ -40,6 +40,11 @@ struct sprd_pwm_chip { struct sprd_pwm_chn chn[SPRD_PWM_CHN_NUM]; }; +static inline struct sprd_pwm_chip* sprd_pwm_from_chip(struct pwm_chip *chip) +{ + return container_of(chip, struct sprd_pwm_chip, chip); +} + /* * The list of clocks required by PWM channels, and each channel has 2 clocks: * enable clock and pwm clock. @@ -69,8 +74,7 @@ static void sprd_pwm_write(struct sprd_pwm_chip *spc, u32 hwid, static int sprd_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm, struct pwm_state *state) { - struct sprd_pwm_chip *spc = - container_of(chip, struct sprd_pwm_chip, chip); + struct sprd_pwm_chip *spc = sprd_pwm_from_chip(chip); struct sprd_pwm_chn *chn = &spc->chn[pwm->hwpwm]; u32 val, duty, prescale; u64 tmp; @@ -162,8 +166,7 @@ static int sprd_pwm_config(struct sprd_pwm_chip *spc, struct pwm_device *pwm, static int sprd_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, const struct pwm_state *state) { - struct sprd_pwm_chip *spc = - container_of(chip, struct sprd_pwm_chip, chip); + struct sprd_pwm_chip *spc = sprd_pwm_from_chip(chip); struct sprd_pwm_chn *chn = &spc->chn[pwm->hwpwm]; struct pwm_state *cstate = &pwm->state; int ret; |