openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/amd/display: Update HDMI hang w/a to apply to all TMDS signals 

[WHY]
48mhz turn off feature does not work on HDMI and DVI, but the feauture
was only blocked on HDMI, this change will apply the same wa on DVI

[HOW]
Apply workaround for all TMDS signal types (HDMI, DVI single/dual link)

Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Michael Strauss 2019-12-13 11:52:24 -05:00 committed by Alex Deucher
parent 30c9b7a133
commit 95e0b96d84
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
View File

@ -59,14 +59,16 @@ int rn_get_active_display_cnt_wa(
struct dc_state *context)
{
int i, display_count;
bool hdmi_present = false;
bool tmds_present = false;
display_count = 0;
for (i = 0; i < context->stream_count; i++) {
const struct dc_stream_state *stream = context->streams[i];
if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)
hdmi_present = true;
if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A ||
stream->signal == SIGNAL_TYPE_DVI_SINGLE_LINK ||
stream->signal == SIGNAL_TYPE_DVI_DUAL_LINK)
tmds_present = true;
}
for (i = 0; i < dc->link_count; i++) {
@ -85,7 +87,7 @@ int rn_get_active_display_cnt_wa(
}
/* WA for hang on HDMI after display off back back on*/
if (display_count == 0 && hdmi_present)
if (display_count == 0 && tmds_present)
display_count = 1;
return display_count;