[v3,PATCH 1/3] pwm: mtk_disp: clear the clock operations

[Rex-BC Chen]

Remove the clk_prepare from mtk_disp_pwm_probe.
Remove the clk_unprepare from mtk_disp_pwm_remove.

After using atomic API and get_state() function which are implemented in PATCH 
[2/3], [3/3],
clk_prepare/clk_unprepare are useless in probe/remove function.
So we remove clk_prepare/clk_unprepare in probe/remove fuinction.

Signed-off-by: Rex-BC Chen <rex-bc.c...@mediatek.com>
Signed-off-by: Jitao Shi <jitao....@mediatek.com>
---
 drivers/pwm/pwm-mtk-disp.c | 23 ++---------------------
 1 file changed, 2 insertions(+), 21 deletions(-)

diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c
index 87c6b4bc5d43..21416a8b6b47 100644
--- a/drivers/pwm/pwm-mtk-disp.c
+++ b/drivers/pwm/pwm-mtk-disp.c
@@ -192,14 +192,6 @@ static int mtk_disp_pwm_probe(struct platform_device *pdev)
        if (IS_ERR(mdp->clk_mm))
                return PTR_ERR(mdp->clk_mm);
 
-       ret = clk_prepare(mdp->clk_main);
-       if (ret < 0)
-               return ret;
-
-       ret = clk_prepare(mdp->clk_mm);
-       if (ret < 0)
-               goto disable_clk_main;
-
        mdp->chip.dev = &pdev->dev;
        mdp->chip.ops = &mtk_disp_pwm_ops;
        mdp->chip.base = -1;
@@ -208,7 +200,7 @@ static int mtk_disp_pwm_probe(struct platform_device *pdev)
        ret = pwmchip_add(&mdp->chip);
        if (ret < 0) {
                dev_err(&pdev->dev, "pwmchip_add() failed: %d\n", ret);
-               goto disable_clk_mm;
+               return ret;
        }
 
        platform_set_drvdata(pdev, mdp);
@@ -227,24 +219,13 @@ static int mtk_disp_pwm_probe(struct platform_device 
*pdev)
        }
 
        return 0;
-
-disable_clk_mm:
-       clk_unprepare(mdp->clk_mm);
-disable_clk_main:
-       clk_unprepare(mdp->clk_main);
-       return ret;
 }
 
 static int mtk_disp_pwm_remove(struct platform_device *pdev)
 {
        struct mtk_disp_pwm *mdp = platform_get_drvdata(pdev);
-       int ret;
-
-       ret = pwmchip_remove(&mdp->chip);
-       clk_unprepare(mdp->clk_mm);
-       clk_unprepare(mdp->clk_main);
 
-       return ret;
+       return pwmchip_remove(&mdp->chip);
 }
 
 static const struct mtk_pwm_data mt2701_pwm_data = {
-- 
2.18.0