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
Signed-off-by: Bruce Wang <bzw...@chromium.org>
Reviewed-by: Jordan Crouse <jcro...@codeaurora.org>
---
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 e31e70f5dbac..c5373a6b51e9 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);
}
--
2.19.0.605.g01d371f741-goog
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