Because clk_prepare_enable() and clk_disable_unprepare() already checked NULL clock parameter, so the additional checks are unnecessary, just remove them.
Signed-off-by: Xu Wang vulab@iscas.ac.cn --- drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c index 3d729270bde1..696a22d571ad 100644 --- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c +++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c @@ -207,12 +207,9 @@ int mdp4_disable(struct mdp4_kms *mdp4_kms) DBG("");
clk_disable_unprepare(mdp4_kms->clk); - if (mdp4_kms->pclk) - clk_disable_unprepare(mdp4_kms->pclk); - if (mdp4_kms->lut_clk) - clk_disable_unprepare(mdp4_kms->lut_clk); - if (mdp4_kms->axi_clk) - clk_disable_unprepare(mdp4_kms->axi_clk); + clk_disable_unprepare(mdp4_kms->pclk); + clk_disable_unprepare(mdp4_kms->lut_clk); + clk_disable_unprepare(mdp4_kms->axi_clk);
return 0; } @@ -222,12 +219,9 @@ int mdp4_enable(struct mdp4_kms *mdp4_kms) DBG("");
clk_prepare_enable(mdp4_kms->clk); - if (mdp4_kms->pclk) - clk_prepare_enable(mdp4_kms->pclk); - if (mdp4_kms->lut_clk) - clk_prepare_enable(mdp4_kms->lut_clk); - if (mdp4_kms->axi_clk) - clk_prepare_enable(mdp4_kms->axi_clk); + clk_prepare_enable(mdp4_kms->pclk); + clk_prepare_enable(mdp4_kms->lut_clk); + clk_prepare_enable(mdp4_kms->axi_clk);
return 0; }