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disp: msm: sde: avoid registering vblank callback during CWB

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During cases where vblank callback registration happens during
CWB is enabled and deregistered at point of no CWB, WB encoder
is left with dangling vblank_cb. Added changes to avoid registering
vblank callback on the clone mode encoder.

Change-Id: I62aa12ef453166d2f5558852d924f87841872f37
Signed-off-by: Raviteja Tamatam <travitej@codeaurora.org>
This commit is contained in:
Raviteja Tamatam
2020-06-23 03:27:46 +05:30
committed by Gerrit - the friendly Code Review server
parent e380b315c6
commit 2211a5dac3
1 changed files with 5 additions and 0 deletions
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5
msm/sde/sde_encoder.c
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@@ -3042,6 +3042,11 @@ void sde_encoder_register_vblank_callback(struct drm_encoder *drm_enc,
SDE_DEBUG_ENC(sde_enc, "\n");
SDE_EVT32(DRMID(drm_enc), enable);
if (sde_encoder_in_clone_mode(drm_enc)) {
SDE_EVT32(DRMID(drm_enc), SDE_EVTLOG_ERROR);
return;
}
spin_lock_irqsave(&sde_enc->enc_spinlock, lock_flags);
sde_enc->crtc_vblank_cb = vbl_cb;
sde_enc->crtc_vblank_cb_data = vbl_data;