[PATCH v3 3/3] pwm: atmel: Simplify using devm_clk_get_prepared()

[Uwe Kleine-König]

With devm_clk_get_prepared() caring to unprepare the clock the error
path and remove callback can be simplified accordingly.

Signed-off-by: Uwe Kleine-König <u.kleine-koe...@pengutronix.de>
---
 drivers/pwm/pwm-atmel.c | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/drivers/pwm/pwm-atmel.c b/drivers/pwm/pwm-atmel.c
index 5813339b597b..d65e23da2582 100644
--- a/drivers/pwm/pwm-atmel.c
+++ b/drivers/pwm/pwm-atmel.c
@@ -415,16 +415,10 @@ static int atmel_pwm_probe(struct platform_device *pdev)
        if (IS_ERR(atmel_pwm->base))
                return PTR_ERR(atmel_pwm->base);
 
-       atmel_pwm->clk = devm_clk_get(&pdev->dev, NULL);
+       atmel_pwm->clk = devm_clk_get_prepared(&pdev->dev, NULL);
        if (IS_ERR(atmel_pwm->clk))
                return PTR_ERR(atmel_pwm->clk);
 
-       ret = clk_prepare(atmel_pwm->clk);
-       if (ret) {
-               dev_err(&pdev->dev, "failed to prepare PWM clock\n");
-               return ret;
-       }
-
        atmel_pwm->chip.dev = &pdev->dev;
        atmel_pwm->chip.ops = &atmel_pwm_ops;
        atmel_pwm->chip.of_xlate = of_pwm_xlate_with_flags;
@@ -435,23 +429,18 @@ static int atmel_pwm_probe(struct platform_device *pdev)
        ret = pwmchip_add(&atmel_pwm->chip);
        if (ret < 0) {
                dev_err(&pdev->dev, "failed to add PWM chip %d\n", ret);
-               goto unprepare_clk;
+               return ret;
        }
 
        platform_set_drvdata(pdev, atmel_pwm);
 
        return ret;
-
-unprepare_clk:
-       clk_unprepare(atmel_pwm->clk);
-       return ret;
 }
 
 static int atmel_pwm_remove(struct platform_device *pdev)
 {
        struct atmel_pwm_chip *atmel_pwm = platform_get_drvdata(pdev);
 
-       clk_unprepare(atmel_pwm->clk);
        mutex_destroy(&atmel_pwm->isr_lock);
 
        return pwmchip_remove(&atmel_pwm->chip);
-- 
2.30.0