From 4e59267c7a20eb1c1ad9106e682cb6a0d8eb3111 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Wed, 14 Feb 2024 10:30:48 +0100 Subject: pwm: Provide an inline function to get the parent device of a given chip MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Link: https://lore.kernel.org/r/cc30090d2f9762bed9854a55612144bccc910781.1707900770.git.u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König --- include/linux/pwm.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux/pwm.h') 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); -- cgit v1.2.3