From 442f59b9c0dec876ccbad7e9839b3e969fcacd14 Mon Sep 17 00:00:00 2001 From: Xu Wang Date: Thu, 31 Dec 2020 09:49:35 +0000 Subject: [PATCH] drm/msm/mdp5: Remove redundant null check before clk_prepare_enable/clk_disable_unprepare 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 Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20201231094935.25737-1-vulab@iscas.ac.cn Signed-off-by: Dmitry Baryshkov Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 18 ++++++------------ drivers/gpu/drm/msm/disp/mdp5/mdp5_mdss.c | 12 ++++-------- 2 files changed, 10 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c index b3b4267..7b24224 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c @@ -295,15 +295,12 @@ static int mdp5_disable(struct mdp5_kms *mdp5_kms) mdp5_kms->enable_count--; WARN_ON(mdp5_kms->enable_count < 0); - if (mdp5_kms->tbu_rt_clk) - clk_disable_unprepare(mdp5_kms->tbu_rt_clk); - if (mdp5_kms->tbu_clk) - clk_disable_unprepare(mdp5_kms->tbu_clk); + clk_disable_unprepare(mdp5_kms->tbu_rt_clk); + clk_disable_unprepare(mdp5_kms->tbu_clk); clk_disable_unprepare(mdp5_kms->ahb_clk); clk_disable_unprepare(mdp5_kms->axi_clk); clk_disable_unprepare(mdp5_kms->core_clk); - if (mdp5_kms->lut_clk) - clk_disable_unprepare(mdp5_kms->lut_clk); + clk_disable_unprepare(mdp5_kms->lut_clk); return 0; } @@ -317,12 +314,9 @@ static int mdp5_enable(struct mdp5_kms *mdp5_kms) clk_prepare_enable(mdp5_kms->ahb_clk); clk_prepare_enable(mdp5_kms->axi_clk); clk_prepare_enable(mdp5_kms->core_clk); - if (mdp5_kms->lut_clk) - clk_prepare_enable(mdp5_kms->lut_clk); - if (mdp5_kms->tbu_clk) - clk_prepare_enable(mdp5_kms->tbu_clk); - if (mdp5_kms->tbu_rt_clk) - clk_prepare_enable(mdp5_kms->tbu_rt_clk); + clk_prepare_enable(mdp5_kms->lut_clk); + clk_prepare_enable(mdp5_kms->tbu_clk); + clk_prepare_enable(mdp5_kms->tbu_rt_clk); return 0; } diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_mdss.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_mdss.c index 2f4895b..0ea5342 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_mdss.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_mdss.c @@ -136,10 +136,8 @@ static int mdp5_mdss_enable(struct msm_mdss *mdss) DBG(""); clk_prepare_enable(mdp5_mdss->ahb_clk); - if (mdp5_mdss->axi_clk) - clk_prepare_enable(mdp5_mdss->axi_clk); - if (mdp5_mdss->vsync_clk) - clk_prepare_enable(mdp5_mdss->vsync_clk); + clk_prepare_enable(mdp5_mdss->axi_clk); + clk_prepare_enable(mdp5_mdss->vsync_clk); return 0; } @@ -149,10 +147,8 @@ static int mdp5_mdss_disable(struct msm_mdss *mdss) struct mdp5_mdss *mdp5_mdss = to_mdp5_mdss(mdss); DBG(""); - if (mdp5_mdss->vsync_clk) - clk_disable_unprepare(mdp5_mdss->vsync_clk); - if (mdp5_mdss->axi_clk) - clk_disable_unprepare(mdp5_mdss->axi_clk); + clk_disable_unprepare(mdp5_mdss->vsync_clk); + clk_disable_unprepare(mdp5_mdss->axi_clk); clk_disable_unprepare(mdp5_mdss->ahb_clk); return 0; -- 2.7.4