samsung-sm8650/android_kernel_samsung_sm8650-modules
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disp: msm: sde: avoid encoder power-collapse with pending frames

Telusuri Sumber 
The encoder idle work is scheduled during the frame-done event
to be executed after a timeout. During the execution, the check
for any on-going/pending frames is invalid as it checks for > 1.
Fix it to check for any non-zero frame-pending and avoid
power-collapse.

Change-Id: If7715ee56cc9bfa63787811458f4fc91de540013
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>
This commit is contained in:
Veera Sundaram Sankaran
2019-10-21 13:24:38 -07:00
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1 mengubah file dengan 2 tambahan dan 2 penghapusan
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msm/sde/sde_encoder.c
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@@ -2581,8 +2581,8 @@ static int _sde_encoder_rc_idle(struct drm_encoder *drm_enc,
SDE_EVT32(DRMID(drm_enc), sw_event, sde_enc->rc_state,
SDE_EVTLOG_ERROR);
goto end;
} else if (sde_crtc_frame_pending(sde_enc->crtc) > 1) {
SDE_ERROR_ENC(sde_enc, "skip idle entry");
} else if (sde_crtc_frame_pending(sde_enc->crtc)) {
SDE_DEBUG_ENC(sde_enc, "skip idle entry");
SDE_EVT32(DRMID(drm_enc), sw_event, sde_enc->rc_state,
sde_crtc_frame_pending(sde_enc->crtc),
SDE_EVTLOG_ERROR);