diff options
| author | Mark Brown <broonie@kernel.org> | 2022-11-25 19:15:32 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-11-25 19:15:32 +0000 |
| commit | 0b21b4dc9a2204fba599a248f5c7ed7822f56154 (patch) | |
| tree | de1cf656290c3e8085e4b00a6b9cee4eff627270 /drivers/gpu/drm/msm/dp/dp_ctrl.c | |
| parent | c4b02c92d9673ef4704fd0c8f008fec183517b64 (diff) | |
| parent | f0c4d9fc9cc9462659728d168387191387e903cc (diff) | |
| download | linux-0b21b4dc9a2204fba599a248f5c7ed7822f56154.tar.gz | |
Merge tag 'v6.1-rc4' into regulator-6.2
Linux 6.1-rc4 which should get my CI working on RPi3s again.
Diffstat (limited to 'drivers/gpu/drm/msm/dp/dp_ctrl.c')
| -rw-r--r-- | drivers/gpu/drm/msm/dp/dp_ctrl.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c index 3854c9f1f7e9..dd26ca651a05 100644 --- a/drivers/gpu/drm/msm/dp/dp_ctrl.c +++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c @@ -1243,8 +1243,7 @@ static int dp_ctrl_link_train(struct dp_ctrl_private *ctrl, { int ret = 0; const u8 *dpcd = ctrl->panel->dpcd; - u8 encoding = DP_SET_ANSI_8B10B; - u8 ssc; + u8 encoding[] = { 0, DP_SET_ANSI_8B10B }; u8 assr; struct dp_link_info link_info = {0}; @@ -1256,13 +1255,11 @@ static int dp_ctrl_link_train(struct dp_ctrl_private *ctrl, dp_aux_link_configure(ctrl->aux, &link_info); - if (drm_dp_max_downspread(dpcd)) { - ssc = DP_SPREAD_AMP_0_5; - drm_dp_dpcd_write(ctrl->aux, DP_DOWNSPREAD_CTRL, &ssc, 1); - } + if (drm_dp_max_downspread(dpcd)) + encoding[0] |= DP_SPREAD_AMP_0_5; - drm_dp_dpcd_write(ctrl->aux, DP_MAIN_LINK_CHANNEL_CODING_SET, - &encoding, 1); + /* config DOWNSPREAD_CTRL and MAIN_LINK_CHANNEL_CODING_SET */ + drm_dp_dpcd_write(ctrl->aux, DP_DOWNSPREAD_CTRL, encoding, 2); if (drm_dp_alternate_scrambler_reset_cap(dpcd)) { assr = DP_ALTERNATE_SCRAMBLER_RESET_ENABLE; |