leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/amd/display: dp debugfs allow link rate lane count greater than dp rx reported caps

Browse Source 
[Why]
when hw team does phy parameters tuning, there is need to force dp
link rate or lane count grater than the values from dp receiver to
check dp tx. current debufs limit link rate, lane count no more
than rx caps.

[How] remove force settings less than rx caps check

v2: Fix typo in title

Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hersen Wu 2018-06-27 13:03:04 -04:00 committed by Alex Deucher
parent aca3e9a49b
commit 245524d9b8
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
View File

@ -214,8 +214,7 @@ static ssize_t dp_link_settings_write(struct file *f, const char __user *buf,
break;
}
if (!valid_input || (param[0] > link->reported_link_cap.lane_count) ||
(param[1] > link->reported_link_cap.link_rate)) {
if (!valid_input) {
kfree(wr_buf);
DRM_DEBUG_DRIVER("Invalid Input value No HW will be programmed\n");
return bytes_from_user;