pwm: img: Make use of pwmchip_parent() accessor

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/bbea7e6e4c5412c6b0773faa9f165b6311cd53b6.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

diff --git a/drivers/pwm/pwm-img.c b/drivers/pwm/pwm-img.c
index 5f423445873d4fcace7cf40772b798ce39db72fa..a4ffe3d71d56dee5f6cd1cc419fb2cf5b2a58aa8 100644 (file)
--- a/drivers/pwm/pwm-img.c
+++ b/drivers/pwm/pwm-img.c
@@ -98,7 +98,7 @@ static int img_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 
        if (period_ns < imgchip->min_period_ns ||
            period_ns > imgchip->max_period_ns) {
-               dev_err(chip->dev, "configured period not in range\n");
+               dev_err(pwmchip_parent(chip), "configured period not in range\n");
                return -ERANGE;
        }
 
@@ -119,14 +119,14 @@ static int img_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
                div = PWM_CTRL_CFG_SUB_DIV0_DIV1;
                timebase = DIV_ROUND_UP(mul, 512);
        } else {
-               dev_err(chip->dev,
+               dev_err(pwmchip_parent(chip),
                        "failed to configure timebase steps/divider value\n");
                return -EINVAL;
        }
 
        duty = DIV_ROUND_UP(timebase * duty_ns, period_ns);
 
-       ret = pm_runtime_resume_and_get(chip->dev);
+       ret = pm_runtime_resume_and_get(pwmchip_parent(chip));
        if (ret < 0)
                return ret;
 
@@ -140,8 +140,8 @@ static int img_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
              (timebase << PWM_CH_CFG_TMBASE_SHIFT);
        img_pwm_writel(imgchip, PWM_CH_CFG(pwm->hwpwm), val);
 
-       pm_runtime_mark_last_busy(chip->dev);
-       pm_runtime_put_autosuspend(chip->dev);
+       pm_runtime_mark_last_busy(pwmchip_parent(chip));
+       pm_runtime_put_autosuspend(pwmchip_parent(chip));
 
        return 0;
 }
@@ -152,7 +152,7 @@ static int img_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
        struct img_pwm_chip *imgchip = to_img_pwm_chip(chip);
        int ret;
 
-       ret = pm_runtime_resume_and_get(chip->dev);
+       ret = pm_runtime_resume_and_get(pwmchip_parent(chip));
        if (ret < 0)
                return ret;
 
@@ -176,8 +176,8 @@ static void img_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
        val &= ~BIT(pwm->hwpwm);
        img_pwm_writel(imgchip, PWM_CTRL_CFG, val);
 
-       pm_runtime_mark_last_busy(chip->dev);
-       pm_runtime_put_autosuspend(chip->dev);
+       pm_runtime_mark_last_busy(pwmchip_parent(chip));
+       pm_runtime_put_autosuspend(pwmchip_parent(chip));
 }
 
 static int img_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,