diff options
| author | Sean Paul <seanpaul@chromium.org> | 2018-11-16 13:42:27 -0500 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2018-12-11 13:10:13 -0500 |
| commit | b77d0f0d4ee757e0a27a269a8b679108162f9bd2 (patch) | |
| tree | 9e1ae07710f8ec24861b59a3897567d8e70d9a5c /drivers/gpu/drm | |
| parent | 1dfdb0e107dbe6ebff3f6bbbe4aad0b5aa87bba4 (diff) | |
| download | linux-b77d0f0d4ee757e0a27a269a8b679108162f9bd2.tar.bz2 | |
drm/msm: dpu: Move pm_runtime_(get|put) from vblank_enable
There are 4 times that _dpu_crtc_vblank_enable_no_lock() is called:
1- crtc enable
2- crtc disable
3- crtc vblank enable
4- crtc vblank disable
When we enable or disable the crtc, we call drm_crtc_vblank_on and
drm_crtc_vblank_off respectively. That will gate vblank enables and
disables to only being called when the crtc is active. That means that
we can just enable/disable pm runtime in crtc enable/disable. This will
be beneficial in trying to eliminate blocking calls from the vblank call
chain.
Changes in v2:
- None
Reviewed-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c index 28465063e345..f359994ab596 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -784,8 +784,6 @@ static void _dpu_crtc_vblank_enable_no_lock( struct drm_encoder *enc; if (enable) { - pm_runtime_get_sync(dev->dev); - list_for_each_entry(enc, &dev->mode_config.encoder_list, head) { if (enc->crtc != crtc) continue; @@ -808,8 +806,6 @@ static void _dpu_crtc_vblank_enable_no_lock( dpu_encoder_register_vblank_callback(enc, NULL, NULL); } - - pm_runtime_put_sync(dev->dev); } } @@ -918,6 +914,8 @@ static void dpu_crtc_disable(struct drm_crtc *crtc) crtc->state->event = NULL; spin_unlock_irqrestore(&crtc->dev->event_lock, flags); } + + pm_runtime_put_sync(crtc->dev->dev); } static void dpu_crtc_enable(struct drm_crtc *crtc, @@ -933,6 +931,8 @@ static void dpu_crtc_enable(struct drm_crtc *crtc, } priv = crtc->dev->dev_private; + pm_runtime_get_sync(crtc->dev->dev); + DRM_DEBUG_KMS("crtc%d\n", crtc->base.id); dpu_crtc = to_dpu_crtc(crtc); |