pwm: tiehrpwm: 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/9badd116d0e26a5656b222c5b4adad7e111a53c7.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 6d7babf6fdb04c391b3699499d8ae874dd4456f3..9a7c721961738b7e5eeff4609f1f988f7badb1ff 100644 (file)
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -256,7 +256,7 @@ static int ehrpwm_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
                        if (i == pwm->hwpwm)
                                continue;
 
-                       dev_err(chip->dev,
+                       dev_err(pwmchip_parent(chip),
                                "period value conflicts with channel %u\n",
                                i);
                        return -EINVAL;
@@ -268,11 +268,11 @@ static int ehrpwm_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
        /* Configure clock prescaler to support Low frequency PWM wave */
        if (set_prescale_div(period_cycles/PERIOD_MAX, &ps_divval,
                             &tb_divval)) {
-               dev_err(chip->dev, "Unsupported values\n");
+               dev_err(pwmchip_parent(chip), "Unsupported values\n");
                return -EINVAL;
        }
 
-       pm_runtime_get_sync(chip->dev);
+       pm_runtime_get_sync(pwmchip_parent(chip));
 
        /* Update clock prescaler values */
        ehrpwm_modify(pc->mmio_base, TBCTL, TBCTL_CLKDIV_MASK, tb_divval);
@@ -299,7 +299,7 @@ static int ehrpwm_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 
        ehrpwm_write(pc->mmio_base, cmp_reg, duty_cycles);
 
-       pm_runtime_put_sync(chip->dev);
+       pm_runtime_put_sync(pwmchip_parent(chip));
 
        return 0;
 }
@@ -323,7 +323,7 @@ static int ehrpwm_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
        int ret;
 
        /* Leave clock enabled on enabling PWM */
-       pm_runtime_get_sync(chip->dev);
+       pm_runtime_get_sync(pwmchip_parent(chip));
 
        /* Disabling Action Qualifier on PWM output */
        if (pwm->hwpwm) {
@@ -346,8 +346,8 @@ static int ehrpwm_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
        /* Enable TBCLK */
        ret = clk_enable(pc->tbclk);
        if (ret) {
-               dev_err(chip->dev, "Failed to enable TBCLK for %s: %d\n",
-                       dev_name(chip->dev), ret);
+               dev_err(pwmchip_parent(chip), "Failed to enable TBCLK for %s: %d\n",
+                       dev_name(pwmchip_parent(chip)), ret);
                return ret;
        }
 
@@ -385,7 +385,7 @@ static void ehrpwm_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
        clk_disable(pc->tbclk);
 
        /* Disable clock on PWM disable */
-       pm_runtime_put_sync(chip->dev);
+       pm_runtime_put_sync(pwmchip_parent(chip));
 }
 
 static void ehrpwm_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
@@ -393,8 +393,8 @@ static void ehrpwm_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
        struct ehrpwm_pwm_chip *pc = to_ehrpwm_pwm_chip(chip);
 
        if (pwm_is_enabled(pwm)) {
-               dev_warn(chip->dev, "Removing PWM device without disabling\n");
-               pm_runtime_put_sync(chip->dev);
+               dev_warn(pwmchip_parent(chip), "Removing PWM device without disabling\n");
+               pm_runtime_put_sync(pwmchip_parent(chip));
        }
 
        /* set period value to zero on free */
@@ -528,7 +528,7 @@ static void ehrpwm_pwm_save_context(struct pwm_chip *chip)
 {
        struct ehrpwm_pwm_chip *pc = to_ehrpwm_pwm_chip(chip);
 
-       pm_runtime_get_sync(chip->dev);
+       pm_runtime_get_sync(pwmchip_parent(chip));
 
        pc->ctx.tbctl = ehrpwm_read(pc->mmio_base, TBCTL);
        pc->ctx.tbprd = ehrpwm_read(pc->mmio_base, TBPRD);
@@ -539,7 +539,7 @@ static void ehrpwm_pwm_save_context(struct pwm_chip *chip)
        pc->ctx.aqsfrc = ehrpwm_read(pc->mmio_base, AQSFRC);
        pc->ctx.aqcsfrc = ehrpwm_read(pc->mmio_base, AQCSFRC);
 
-       pm_runtime_put_sync(chip->dev);
+       pm_runtime_put_sync(pwmchip_parent(chip));
 }
 
 static void ehrpwm_pwm_restore_context(struct pwm_chip *chip)