pwm: lpc18xx-sct: 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/e4fb330c8dbf8fecd365afe3f8b33f8c7952eb38.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

diff --git a/drivers/pwm/pwm-lpc18xx-sct.c b/drivers/pwm/pwm-lpc18xx-sct.c
index 754ea2c3f49bed0b38d1a22804337db20feade01..46eeca27d9ab9771ee7d4cab0c514e91ad92b3e9 100644 (file)
--- a/drivers/pwm/pwm-lpc18xx-sct.c
+++ b/drivers/pwm/pwm-lpc18xx-sct.c
@@ -197,7 +197,7 @@ static int lpc18xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 
        if (period_ns < lpc18xx_pwm->min_period_ns ||
            period_ns > lpc18xx_pwm->max_period_ns) {
-               dev_err(chip->dev, "period %d not in range\n", period_ns);
+               dev_err(pwmchip_parent(chip), "period %d not in range\n", period_ns);
                return -ERANGE;
        }
 
@@ -213,7 +213,7 @@ static int lpc18xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
         */
        if (requested_events > 2 && lpc18xx_pwm->period_ns != period_ns &&
            lpc18xx_pwm->period_ns) {
-               dev_err(chip->dev, "conflicting period requested for PWM %u\n",
+               dev_err(pwmchip_parent(chip), "conflicting period requested for PWM %u\n",
                        pwm->hwpwm);
                mutex_unlock(&lpc18xx_pwm->period_lock);
                return -EBUSY;
@@ -288,7 +288,7 @@ static int lpc18xx_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
                                    LPC18XX_PWM_EVENT_MAX);
 
        if (event >= LPC18XX_PWM_EVENT_MAX) {
-               dev_err(chip->dev,
+               dev_err(pwmchip_parent(chip),
                        "maximum number of simultaneous channels reached\n");
                return -EBUSY;
        }