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pwm: iqs620a: Create a wrapper for converting a pwm_chip to driver data

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There is no semantic change. The new function just implements what was
open-coded twice in the driver before.

Link: https://lore.kernel.org/r/cc7ab547b4c4b79456b548aa72205bcf4476db8c.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König 2024-02-14 10:31:39 +01:00
parent a1d81abc03
commit 8a18b97332
1 changed files with 7 additions and 2 deletions
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9
drivers/pwm/pwm-iqs620a.c
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@ -40,6 +40,11 @@ struct iqs620_pwm_private {
unsigned int duty_scale; unsigned int duty_scale;
}; };
static inline struct iqs620_pwm_private *iqs620_pwm_from_chip(struct pwm_chip *chip)
{
return container_of(chip, struct iqs620_pwm_private, chip);
}
static int iqs620_pwm_init(struct iqs620_pwm_private *iqs620_pwm, static int iqs620_pwm_init(struct iqs620_pwm_private *iqs620_pwm,
unsigned int duty_scale) unsigned int duty_scale)
{ {
@ -73,7 +78,7 @@ static int iqs620_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
if (state->period < IQS620_PWM_PERIOD_NS) if (state->period < IQS620_PWM_PERIOD_NS)
return -EINVAL; return -EINVAL;
iqs620_pwm = container_of(chip, struct iqs620_pwm_private, chip); iqs620_pwm = iqs620_pwm_from_chip(chip);
/* /*
* The duty cycle generated by the device is calculated as follows: * The duty cycle generated by the device is calculated as follows:
@ -109,7 +114,7 @@ static int iqs620_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm,
{ {
struct iqs620_pwm_private *iqs620_pwm; struct iqs620_pwm_private *iqs620_pwm;
iqs620_pwm = container_of(chip, struct iqs620_pwm_private, chip); iqs620_pwm = iqs620_pwm_from_chip(chip);
mutex_lock(&iqs620_pwm->lock); mutex_lock(&iqs620_pwm->lock);