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pwm: jz4740: Make use of pwmchip_parent() accessor

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struct pwm_chip::dev is about to change. To not have to touch this
driver in the same commit as struct pwm_chip::dev, use the accessor
function provided for exactly this purpose.

Link: https://lore.kernel.org/r/86b8a362f1e50c5b95c43e056d03ee5ca66d1641.1707900770.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 10:31:43 +01:00
parent cebf107de5
commit 4eeb33229c
1 changed files with 6 additions and 5 deletions
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11
drivers/pwm/pwm-jz4740.c
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@ -40,7 +40,7 @@ static bool jz4740_pwm_can_use_chn(struct pwm_chip *chip, unsigned int channel)
/* Enable all TCU channels for PWM use by default except channels 0/1 */
u32 pwm_channels_mask = GENMASK(chip->npwm - 1, 2);
device_property_read_u32(chip->dev->parent,
device_property_read_u32(pwmchip_parent(chip)->parent,
"ingenic,pwm-channels-mask",
&pwm_channels_mask);
@ -59,9 +59,10 @@ static int jz4740_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
snprintf(name, sizeof(name), "timer%u", pwm->hwpwm);
clk = clk_get(chip->dev, name);
clk = clk_get(pwmchip_parent(chip), name);
if (IS_ERR(clk)) {
dev_err(chip->dev, "error %pe: Failed to get clock\n", clk);
dev_err(pwmchip_parent(chip),
"error %pe: Failed to get clock\n", clk);
return PTR_ERR(clk);
}
@ -149,7 +150,7 @@ static int jz4740_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
*/
rate = clk_round_rate(clk, tmp);
if (rate < 0) {
dev_err(chip->dev, "Unable to round rate: %ld\n", rate);
dev_err(pwmchip_parent(chip), "Unable to round rate: %ld\n", rate);
return rate;
}
@ -170,7 +171,7 @@ static int jz4740_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
err = clk_set_rate(clk, rate);
if (err) {
dev_err(chip->dev, "Unable to set rate: %d\n", err);
dev_err(pwmchip_parent(chip), "Unable to set rate: %d\n", err);
return err;
}