From 9a9ede3f719379c4edc7dcc60b00f44db77b9b74 Mon Sep 17 00:00:00 2001 From: Bruce Wang Date: Wed, 26 Sep 2018 17:28:59 -0400 Subject: [PATCH] drm/msm/dpu: Remove _dpu_crtc_power_enable All checks for _dpu_crtc_power_enable are not true, so the function can never return an error code. This removes the need for the function as pm_runtime functions can be used instead. v3: Separated _dpu_crtc_power_enable into _dpu_crtc_power_enable and _dpu_crtc_power_disable for clarity. v4: Removed both _dpu_crtc_power_enable and _dpu_crtc_power_disable and called pm_runtime_get_sync and pm_runtime_put_sync from all call points Reviewed-by: Jordan Crouse Signed-off-by: Bruce Wang Signed-off-by: Sean Paul Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 41 ++------------------------------ 1 file changed, 2 insertions(+), 39 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c index e31e70f..c5373a6 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -60,39 +60,6 @@ static inline struct dpu_kms *_dpu_crtc_get_kms(struct drm_crtc *crtc) return to_dpu_kms(priv->kms); } -static inline int _dpu_crtc_power_enable(struct dpu_crtc *dpu_crtc, bool enable) -{ - struct drm_crtc *crtc; - struct msm_drm_private *priv; - struct dpu_kms *dpu_kms; - - if (!dpu_crtc) { - DPU_ERROR("invalid dpu crtc\n"); - return -EINVAL; - } - - crtc = &dpu_crtc->base; - if (!crtc->dev || !crtc->dev->dev_private) { - DPU_ERROR("invalid drm device\n"); - return -EINVAL; - } - - priv = crtc->dev->dev_private; - if (!priv->kms) { - DPU_ERROR("invalid kms\n"); - return -EINVAL; - } - - dpu_kms = to_dpu_kms(priv->kms); - - if (enable) - pm_runtime_get_sync(&dpu_kms->pdev->dev); - else - pm_runtime_put_sync(&dpu_kms->pdev->dev); - - return 0; -} - static void dpu_crtc_destroy(struct drm_crtc *crtc) { struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); @@ -823,14 +790,10 @@ static int _dpu_crtc_vblank_enable_no_lock( dev = crtc->dev; if (enable) { - int ret; - /* drop lock since power crtc cb may try to re-acquire lock */ mutex_unlock(&dpu_crtc->crtc_lock); - ret = _dpu_crtc_power_enable(dpu_crtc, true); + pm_runtime_get_sync(dev->dev); mutex_lock(&dpu_crtc->crtc_lock); - if (ret) - return ret; list_for_each_entry(enc, &dev->mode_config.encoder_list, head) { if (enc->crtc != crtc) @@ -857,7 +820,7 @@ static int _dpu_crtc_vblank_enable_no_lock( /* drop lock since power crtc cb may try to re-acquire lock */ mutex_unlock(&dpu_crtc->crtc_lock); - _dpu_crtc_power_enable(dpu_crtc, false); + pm_runtime_put_sync(dev->dev); mutex_lock(&dpu_crtc->crtc_lock); } -- 2.7.4