diff options
| author | Pavan Kunapuli <pkunapuli@nvidia.com> | 2016-08-29 07:08:24 -0400 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2016-08-31 11:03:27 -0400 |
| commit | 118f6eeb02e900015f1506c3861d585e3460ff10 (patch) | |
| tree | 5eb700e7664c02c4b7938075fa26841bef388644 /drivers/video/tegra/dc/dsi.c | |
| parent | feeb9b62f21b73cc092607840c3b1f24b58119f7 (diff) | |
video: tegra: dsi: Wait for 2-frames time before enabling sideband transfers
Due to HW bug, EoTP could sometimes not be masked when sending init sequence
data in less than one line time from Lt4 start. This could mean the panel
discarding init sequence data. To avoid this issue, WAR is to wait for 2 frames
time before enabling sideband transfers. Similar wait is already present in the
driver before disabling sideband transfers.
Bug 200222278
Change-Id: I38ca3501a631780c74b9535f5e139eede799af7d
Signed-off-by: Pavan Kunapuli <pkunapuli@nvidia.com>
Reviewed-on: http://git-master/r/1209037
Reviewed-by: Animesh Kishore <ankishore@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Diffstat (limited to 'drivers/video/tegra/dc/dsi.c')
| -rw-r--r-- | drivers/video/tegra/dc/dsi.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/video/tegra/dc/dsi.c b/drivers/video/tegra/dc/dsi.c index 211a594fc..1dbe56305 100644 --- a/drivers/video/tegra/dc/dsi.c +++ b/drivers/video/tegra/dc/dsi.c | |||
| @@ -3948,6 +3948,7 @@ int tegra_dsi_start_host_cmd_v_blank_dcs(struct tegra_dc_dsi_data *dsi, | |||
| 3948 | #if DSI_USE_SYNC_POINTS | 3948 | #if DSI_USE_SYNC_POINTS |
| 3949 | atomic_set(&dsi_syncpt_rst, 1); | 3949 | atomic_set(&dsi_syncpt_rst, 1); |
| 3950 | #endif | 3950 | #endif |
| 3951 | tegra_dsi_wait_frame_end(dc, dsi, 2); | ||
| 3951 | 3952 | ||
| 3952 | err = tegra_dsi_dcs_pkt_seq_ctrl_init(dsi, cmd); | 3953 | err = tegra_dsi_dcs_pkt_seq_ctrl_init(dsi, cmd); |
| 3953 | if (err < 0) { | 3954 | if (err < 0) { |