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pwm: samsung: 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/421ee291a065aeae7a1552f22da4173313e789ad.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 10:32:25 +01:00
parent 70efbf8891
commit 87b63f73e2
1 changed files with 9 additions and 9 deletions
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18
drivers/pwm/pwm-samsung.c
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@@ -198,12 +198,12 @@ static unsigned long pwm_samsung_calc_tin(struct pwm_chip *chip,
return rate;
}
dev_warn(chip->dev,
dev_warn(pwmchip_parent(chip),
"tclk of PWM %d is inoperational, using tdiv\n", chan);
}
rate = pwm_samsung_get_tin_rate(our_chip, chan);
dev_dbg(chip->dev, "tin parent at %lu\n", rate);
dev_dbg(pwmchip_parent(chip), "tin parent at %lu\n", rate);
/*
* Compare minimum PWM frequency that can be achieved with possible
@@ -233,7 +233,7 @@ static int pwm_samsung_request(struct pwm_chip *chip, struct pwm_device *pwm)
struct samsung_pwm_chip *our_chip = to_samsung_pwm_chip(chip);
if (!(our_chip->variant.output_mask & BIT(pwm->hwpwm))) {
dev_warn(chip->dev,
dev_warn(pwmchip_parent(chip),
"tried to request PWM channel %d without output\n",
pwm->hwpwm);
return -EINVAL;
@@ -327,12 +327,12 @@ static int __pwm_samsung_config(struct pwm_chip *chip, struct pwm_device *pwm,
period = NSEC_PER_SEC / period_ns;
dev_dbg(chip->dev, "duty_ns=%d, period_ns=%d (%u)\n",
dev_dbg(pwmchip_parent(chip), "duty_ns=%d, period_ns=%d (%u)\n",
duty_ns, period_ns, period);
tin_rate = pwm_samsung_calc_tin(chip, pwm->hwpwm, period);
dev_dbg(chip->dev, "tin_rate=%lu\n", tin_rate);
dev_dbg(pwmchip_parent(chip), "tin_rate=%lu\n", tin_rate);
tin_ns = NSEC_PER_SEC / tin_rate;
tcnt = period_ns / tin_ns;
@@ -356,7 +356,7 @@ static int __pwm_samsung_config(struct pwm_chip *chip, struct pwm_device *pwm,
/* -1UL will give 100% duty. */
--tcmp;
dev_dbg(chip->dev, "tin_ns=%u, tcmp=%u/%u\n", tin_ns, tcmp, tcnt);
dev_dbg(pwmchip_parent(chip), "tin_ns=%u, tcmp=%u/%u\n", tin_ns, tcmp, tcnt);
/* Update PWM registers. */
writel(tcnt, our_chip->base + REG_TCNTB(pwm->hwpwm));
@@ -368,7 +368,7 @@ static int __pwm_samsung_config(struct pwm_chip *chip, struct pwm_device *pwm,
* shortly afer this update (before it autoreloaded the new values).
*/
if (oldtcmp == (u32) -1) {
dev_dbg(chip->dev, "Forcing manual update");
dev_dbg(pwmchip_parent(chip), "Forcing manual update");
pwm_samsung_manual_update(our_chip, pwm);
}
@@ -510,7 +510,7 @@ MODULE_DEVICE_TABLE(of, samsung_pwm_matches);
static int pwm_samsung_parse_dt(struct pwm_chip *chip)
{
struct samsung_pwm_chip *our_chip = to_samsung_pwm_chip(chip);
struct device_node *np = chip->dev->of_node;
struct device_node *np = pwmchip_parent(chip)->of_node;
const struct of_device_id *match;
struct property *prop;
const __be32 *cur;
@@ -524,7 +524,7 @@ static int pwm_samsung_parse_dt(struct pwm_chip *chip)
of_property_for_each_u32(np, "samsung,pwm-outputs", prop, cur, val) {
if (val >= SAMSUNG_PWM_NUM) {
dev_err(chip->dev,
dev_err(pwmchip_parent(chip),
"%s: invalid channel index in samsung,pwm-outputs property\n",
__func__);
continue;