staging: greybus: pwm: 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.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/7e7517527b825a18ca10cb0faa837577d4f0ec8a.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

diff --git a/drivers/staging/greybus/pwm.c b/drivers/staging/greybus/pwm.c
index 97b49d436c541556e8ace60c3c2b1028d5004f6c..0cd1dab2d888c511239692f9ab520dc53f2a0953 100644 (file)
--- a/drivers/staging/greybus/pwm.c
+++ b/drivers/staging/greybus/pwm.c
@@ -51,7 +51,7 @@ static int gb_pwm_activate_operation(struct pwm_chip *chip, u8 which)
 
        request.which = which;
 
-       gbphy_dev = to_gbphy_dev(chip->dev);
+       gbphy_dev = to_gbphy_dev(pwmchip_parent(chip));
        ret = gbphy_runtime_get_sync(gbphy_dev);
        if (ret)
                return ret;
@@ -76,7 +76,7 @@ static int gb_pwm_deactivate_operation(struct pwm_chip *chip, u8 which)
 
        request.which = which;
 
-       gbphy_dev = to_gbphy_dev(chip->dev);
+       gbphy_dev = to_gbphy_dev(pwmchip_parent(chip));
        ret = gbphy_runtime_get_sync(gbphy_dev);
        if (ret)
                return ret;
@@ -104,7 +104,7 @@ static int gb_pwm_config_operation(struct pwm_chip *chip,
        request.duty = cpu_to_le32(duty);
        request.period = cpu_to_le32(period);
 
-       gbphy_dev = to_gbphy_dev(chip->dev);
+       gbphy_dev = to_gbphy_dev(pwmchip_parent(chip));
        ret = gbphy_runtime_get_sync(gbphy_dev);
        if (ret)
                return ret;
@@ -131,7 +131,7 @@ static int gb_pwm_set_polarity_operation(struct pwm_chip *chip,
        request.which = which;
        request.polarity = polarity;
 
-       gbphy_dev = to_gbphy_dev(chip->dev);
+       gbphy_dev = to_gbphy_dev(pwmchip_parent(chip));
        ret = gbphy_runtime_get_sync(gbphy_dev);
        if (ret)
                return ret;
@@ -156,7 +156,7 @@ static int gb_pwm_enable_operation(struct pwm_chip *chip, u8 which)
 
        request.which = which;
 
-       gbphy_dev = to_gbphy_dev(chip->dev);
+       gbphy_dev = to_gbphy_dev(pwmchip_parent(chip));
        ret = gbphy_runtime_get_sync(gbphy_dev);
        if (ret)
                return ret;
@@ -184,7 +184,7 @@ static int gb_pwm_disable_operation(struct pwm_chip *chip, u8 which)
        ret = gb_operation_sync(pwmc->connection, GB_PWM_TYPE_DISABLE,
                                &request, sizeof(request), NULL, 0);
 
-       gbphy_dev = to_gbphy_dev(chip->dev);
+       gbphy_dev = to_gbphy_dev(pwmchip_parent(chip));
        gbphy_runtime_put_autosuspend(gbphy_dev);
 
        return ret;
@@ -198,7 +198,7 @@ static int gb_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
 static void gb_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
 {
        if (pwm_is_enabled(pwm))
-               dev_warn(chip->dev, "freeing PWM device without disabling\n");
+               dev_warn(pwmchip_parent(chip), "freeing PWM device without disabling\n");
 
        gb_pwm_deactivate_operation(chip, pwm->hwpwm);
 }