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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-21 12:21:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-21 12:21:53 +0300 |
| commit | 05df6ab8eba625a1d97eb67ee06d786b8e460685 (patch) | |
| tree | 7fed59b7f49fd8d816475ca6b20c95c7f837ca6f /drivers/gpu/drm/msm/dp/dp_ctrl.c | |
| parent | 1d926e259d8f8195fdfaeea7951149001894b473 (diff) | |
| parent | eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 (diff) | |
| download | linux-05df6ab8eba625a1d97eb67ee06d786b8e460685.tar.xz | |
Merge 6.1-rc6 into driver-core-next
We need the kernfs changes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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; |