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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 10:30:48 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-15 12:37:29 +0100 |
| commit | 4e59267c7a20eb1c1ad9106e682cb6a0d8eb3111 (patch) | |
| tree | 46ff9d6257227c59bd4416d733a11f2eddf41f16 /include/linux/pwm.h | |
| parent | eb58bf4afd708eb3c64c7b9b2c5fbfacdcdee3e5 (diff) | |
| download | linux-4e59267c7a20eb1c1ad9106e682cb6a0d8eb3111.tar.gz linux-4e59267c7a20eb1c1ad9106e682cb6a0d8eb3111.tar.bz2 linux-4e59267c7a20eb1c1ad9106e682cb6a0d8eb3111.zip | |
pwm: Provide an inline function to get the parent device of a given chip
Currently a pwm_chip stores in its struct device *dev member a pointer
to the parent device. Preparing a change that embeds a full struct
device in struct pwm_chip, this accessor function should be used in all
drivers directly accessing chip->dev now. This way struct pwm_chip and
this new function can be changed without having to touch all drivers in
the same change set.
Make use of this function in the framework's core sources.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/cc30090d2f9762bed9854a55612144bccc910781.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'include/linux/pwm.h')
| -rw-r--r-- | include/linux/pwm.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/pwm.h b/include/linux/pwm.h index 8ffe9ae7a23a..07af6910bdce 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -289,6 +289,11 @@ struct pwm_chip { struct pwm_device *pwms; }; +static inline struct device *pwmchip_parent(const struct pwm_chip *chip) +{ + return chip->dev; +} + #if IS_ENABLED(CONFIG_PWM) /* PWM user APIs */ int pwm_apply_might_sleep(struct pwm_device *pwm, const struct pwm_state *state); |