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authorHai Li <hali@codeaurora.org>2015-04-28 19:35:37 -0400
committerRob Clark <robdclark@gmail.com>2015-06-11 13:11:04 -0400
commit0a5c9aad119c4415e14ece4c17cec66aa572e827 (patch)
tree35fb1752d5b0e0a38bec2ced4207d7dc0b2d8770 /drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
parent7eed919a35a1e9289dbbc7b3c89bdb736a2b2a60 (diff)
downloadlwn-0a5c9aad119c4415e14ece4c17cec66aa572e827.tar.gz
lwn-0a5c9aad119c4415e14ece4c17cec66aa572e827.zip
drm/msm: Use customized function to wait for atomic commit done
MDP FLUSH registers could indicate if the previous flush updates has taken effect at vsync boundary. Making use of this H/W feature can catch the vsync that happened between CRTC atomic_flush and *_wait_for_vblanks, to avoid unnecessary wait. This change allows kms CRTCs to use their own *_wait_for_commit_done functions to wait for FLUSH register cleared at vsync, before commit completion. Signed-off-by: Hai Li <hali@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c')
-rw-r--r--drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
index bbacf9d2b738..206f758f7d64 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
@@ -80,6 +80,12 @@ static void mdp5_complete_commit(struct msm_kms *kms, struct drm_atomic_state *s
mdp5_disable(mdp5_kms);
}
+static void mdp5_wait_for_crtc_commit_done(struct msm_kms *kms,
+ struct drm_crtc *crtc)
+{
+ mdp5_crtc_wait_for_commit_done(crtc);
+}
+
static long mdp5_round_pixclk(struct msm_kms *kms, unsigned long rate,
struct drm_encoder *encoder)
{
@@ -141,6 +147,7 @@ static const struct mdp_kms_funcs kms_funcs = {
.disable_vblank = mdp5_disable_vblank,
.prepare_commit = mdp5_prepare_commit,
.complete_commit = mdp5_complete_commit,
+ .wait_for_crtc_commit_done = mdp5_wait_for_crtc_commit_done,
.get_format = mdp_get_format,
.round_pixclk = mdp5_round_pixclk,
.set_split_display = mdp5_set_split_display,