diff options
| author | Douglas Anderson <dianders@chromium.org> | 2022-01-05 16:13:40 -0800 |
|---|---|---|
| committer | Douglas Anderson <dianders@chromium.org> | 2022-01-05 16:13:40 -0800 |
| commit | ef1270e99460055ee7d66a4a22dd74bf61c17aa5 (patch) | |
| tree | 9cde5969ac70f1cdf84a4bbcc8adc2deacf4bb47 /drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c | |
| parent | 1a4af2e40c98b62c8aaf7cb692cd9600291d339b (diff) | |
| parent | cb6846fbb83b574c85c2a80211b402a6347b60b1 (diff) | |
Merge remote-tracking branch 'drm/drm-next' into drm-tip
# Conflicts:
# drivers/gpu/drm/nouveau/nouveau_fence.c
Diffstat (limited to 'drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c index cab6c8b92efd..6a4f20fccf84 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c @@ -998,11 +998,21 @@ int analogix_dp_send_psr_spd(struct analogix_dp_device *dp, if (!blocking) return 0; + /* + * db[1]!=0: entering PSR, wait for fully active remote frame buffer. + * db[1]==0: exiting PSR, wait for either + * (a) ACTIVE_RESYNC - the sink "must display the + * incoming active frames from the Source device with no visible + * glitches and/or artifacts", even though timings may still be + * re-synchronizing; or + * (b) INACTIVE - the transition is fully complete. + */ ret = readx_poll_timeout(analogix_dp_get_psr_status, dp, psr_status, psr_status >= 0 && ((vsc->db[1] && psr_status == DP_PSR_SINK_ACTIVE_RFB) || - (!vsc->db[1] && psr_status == DP_PSR_SINK_INACTIVE)), 1500, - DP_TIMEOUT_PSR_LOOP_MS * 1000); + (!vsc->db[1] && (psr_status == DP_PSR_SINK_ACTIVE_RESYNC || + psr_status == DP_PSR_SINK_INACTIVE))), + 1500, DP_TIMEOUT_PSR_LOOP_MS * 1000); if (ret) { dev_warn(dp->dev, "Failed to apply PSR %d\n", ret); return ret; |