diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 10:31:20 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-19 11:04:08 +0100 |
| commit | 1647e5065b4d67bec47977e650ad8ba3812cd259 (patch) | |
| tree | b6e75b0c35abca666cb7a2eff780fc423b6d5599 /drivers/pwm | |
| parent | aaa3cc29a78e0db72762999d7ad1224d1cf3d45c (diff) | |
pwm: dwc: Make use of devm_pwmchip_alloc() function
This prepares the pwm-dwc 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.
Also convert the to_dwc_pwm() helper macro to a static inline to get
some type safety.
Link: https://lore.kernel.org/r/64e64a9a8644600d51b234ad9bcae951b5748998.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-dwc-core.c | 10 | ||||
| -rw-r--r-- | drivers/pwm/pwm-dwc.h | 7 |
2 files changed, 9 insertions, 8 deletions
diff --git a/drivers/pwm/pwm-dwc-core.c b/drivers/pwm/pwm-dwc-core.c index ac7a0b2cb8b9..de1d2ac3316c 100644 --- a/drivers/pwm/pwm-dwc-core.c +++ b/drivers/pwm/pwm-dwc-core.c @@ -164,15 +164,13 @@ struct pwm_chip *dwc_pwm_alloc(struct device *dev) struct pwm_chip *chip; struct dwc_pwm *dwc; - dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL); - if (!dwc) - return ERR_PTR(-ENOMEM); - chip = &dwc->chip; + chip = devm_pwmchip_alloc(dev, DWC_TIMERS_TOTAL, sizeof(*dwc)); + if (IS_ERR(chip)) + return chip; + dwc = to_dwc_pwm(chip); dwc->clk_ns = 10; - chip->dev = dev; chip->ops = &dwc_pwm_ops; - chip->npwm = DWC_TIMERS_TOTAL; dev_set_drvdata(dev, chip); return chip; diff --git a/drivers/pwm/pwm-dwc.h b/drivers/pwm/pwm-dwc.h index 432a3b4c81fd..5887371803fd 100644 --- a/drivers/pwm/pwm-dwc.h +++ b/drivers/pwm/pwm-dwc.h @@ -40,12 +40,15 @@ struct dwc_pwm_ctx { }; struct dwc_pwm { - struct pwm_chip chip; void __iomem *base; unsigned int clk_ns; struct dwc_pwm_ctx ctx[DWC_TIMERS_TOTAL]; }; -#define to_dwc_pwm(p) (container_of((p), struct dwc_pwm, chip)) + +static inline struct dwc_pwm *to_dwc_pwm(struct pwm_chip *chip) +{ + return pwmchip_get_drvdata(chip); +} static inline u32 dwc_pwm_readl(struct dwc_pwm *dwc, u32 offset) { |