evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

msm: mdss: dp: update Clock Recovery phase of link training

Browse source 
Update TRAINING_PATTERN_SET then TRAINING_LANEx_SET in the
Clock Recovery phase of link training as this is the sequence
mandated in the display port specification.

CRs-Fixed: 1076516
Change-Id: I7aa157d9377799563180792fe5d31a22a7aff0e1
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>
This commit is contained in:
Tatenda Chipeperekwa 2016-10-05 19:30:40 -07:00
parent a9494a84ac
commit cb0dd4bc98
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/video/fbdev/msm/mdss_dp_aux.c
View file

@ -1174,8 +1174,9 @@ static int dp_start_link_train_1(struct mdss_dp_drv_pdata *ep)
pr_debug("Entered++");
dp_host_train_set(ep, 0x01); /* train_1 */
dp_voltage_pre_emphasise_set(ep);
dp_cap_lane_rate_set(ep);
dp_train_pattern_set_write(ep, 0x21); /* train_1 */
dp_voltage_pre_emphasise_set(ep);
tries = 0;
old_v_level = ep->v_level;
@ -1336,7 +1337,6 @@ int mdss_dp_link_train(struct mdss_dp_drv_pdata *dp)
train_start:
dp->v_level = 0; /* start from default level */
dp->p_level = 0;
dp_cap_lane_rate_set(dp);
mdss_dp_config_ctrl(dp);
mdss_dp_state_ctrl(&dp->ctrl_io, 0);