pwm: tiecap: Simplify code to determine the pwmchip's parent device

There is already a pointer to the pwmchip, make use of it directly
instead of using the struct ecap_pwm_chip *pc just obtained from
it. This also has the advantage of not using struct ecap_pwm_chip::chip
any more which will be dropped soon.

Link: https://lore.kernel.org/r/628f4b8c4ba1321075fc1dff70453a1c79ffb814.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c
index d974f4414ac9ae9d2d29e1283e9b7e718922de4a..b93e3be318d5e7c170aab61790c2e5a274aef383 100644 (file)
--- a/drivers/pwm/pwm-tiecap.c
+++ b/drivers/pwm/pwm-tiecap.c
@@ -70,7 +70,7 @@ static int ecap_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
                duty_cycles = (u32)c;
        }
 
-       pm_runtime_get_sync(pc->chip.dev);
+       pm_runtime_get_sync(chip->dev);
 
        value = readw(pc->mmio_base + ECCTL2);
 
@@ -100,7 +100,7 @@ static int ecap_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
                writew(value, pc->mmio_base + ECCTL2);
        }
 
-       pm_runtime_put_sync(pc->chip.dev);
+       pm_runtime_put_sync(chip->dev);
 
        return 0;
 }
@@ -111,7 +111,7 @@ static int ecap_pwm_set_polarity(struct pwm_chip *chip, struct pwm_device *pwm,
        struct ecap_pwm_chip *pc = to_ecap_pwm_chip(chip);
        u16 value;
 
-       pm_runtime_get_sync(pc->chip.dev);
+       pm_runtime_get_sync(chip->dev);
 
        value = readw(pc->mmio_base + ECCTL2);
 
@@ -124,7 +124,7 @@ static int ecap_pwm_set_polarity(struct pwm_chip *chip, struct pwm_device *pwm,
 
        writew(value, pc->mmio_base + ECCTL2);
 
-       pm_runtime_put_sync(pc->chip.dev);
+       pm_runtime_put_sync(chip->dev);
 
        return 0;
 }
@@ -135,7 +135,7 @@ static int ecap_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
        u16 value;
 
        /* Leave clock enabled on enabling PWM */
-       pm_runtime_get_sync(pc->chip.dev);
+       pm_runtime_get_sync(chip->dev);
 
        /*
         * Enable 'Free run Time stamp counter mode' to start counter
@@ -162,7 +162,7 @@ static void ecap_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
        writew(value, pc->mmio_base + ECCTL2);
 
        /* Disable clock on PWM disable */
-       pm_runtime_put_sync(pc->chip.dev);
+       pm_runtime_put_sync(chip->dev);
 }
 
 static int ecap_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,