From d8a2f6f26a079f3d0a34b6146e332797218cb5de Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Fri, 29 Sep 2023 18:19:14 +0200 Subject: [PATCH] pwm: sprd: Provide a helper to cast a chip to driver data MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Thierry Reding --- drivers/pwm/pwm-sprd.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/pwm/pwm-sprd.c b/drivers/pwm/pwm-sprd.c index dfda2152a7c18..98a36ff7df7bb 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; -- 2.30.2