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pwm: stm32-lp: Simplify code to determine the pwmchip's parent device

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There is already a pointer to the pwmchip, make use of it directly
instead of using the struct stm32_pwm_lp *priv just obtained from
it. This also has the advantage of not using struct stm32_pwm_lp::chip
any more which will be dropped soon.

Link: https://lore.kernel.org/r/9ad2399e1a683a6344b12d7f70498393b8f8b9de.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 10:32:45 +01:00
parent 174821b7be
commit 3e4224a98b
1 changed files with 3 additions and 3 deletions
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6
drivers/pwm/pwm-stm32-lp.c
View file

@ -61,7 +61,7 @@ static int stm32_pwm_lp_apply(struct pwm_chip *chip, struct pwm_device *pwm,
do_div(div, NSEC_PER_SEC);
if (!div) {
/* Clock is too slow to achieve requested period. */
dev_dbg(priv->chip.dev, "Can't reach %llu ns\n", state->period);
dev_dbg(chip->dev, "Can't reach %llu ns\n", state->period);
return -EINVAL;
}
@ -69,7 +69,7 @@ static int stm32_pwm_lp_apply(struct pwm_chip *chip, struct pwm_device *pwm,
while (div > STM32_LPTIM_MAX_ARR) {
presc++;
if ((1 << presc) > STM32_LPTIM_MAX_PRESCALER) {
dev_err(priv->chip.dev, "max prescaler exceeded\n");
dev_err(chip->dev, "max prescaler exceeded\n");
return -EINVAL;
}
div = prd >> presc;
@ -130,7 +130,7 @@ static int stm32_pwm_lp_apply(struct pwm_chip *chip, struct pwm_device *pwm,
(val & STM32_LPTIM_CMPOK_ARROK) == STM32_LPTIM_CMPOK_ARROK,
100, 1000);
if (ret) {
dev_err(priv->chip.dev, "ARR/CMP registers write issue\n");
dev_err(chip->dev, "ARR/CMP registers write issue\n");
goto err;
}
ret = regmap_write(priv->regmap, STM32_LPTIM_ICR,