public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-08-05 16:54:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

drm/amd/display: Don't enable AFMT for DP audio stream

Browse source 
[WHY]
AFMT is unused for DP audio, so powering it on for DP is unnecessary.

[HOW]
APG block should be powered down instead, however HW defaults to shutdown
state when not enabled so no further work is required.

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Michael Strauss 2021-09-13 13:47:13 -04:00 • committed by Alex Deucher
parent bf72ca73aa
commit b089ebaadd
2 changed files with 0 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c
View file

@ -1402,11 +1402,6 @@ static void enc1_se_disable_dp_audio(
struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);
uint32_t value = 0;
#if defined(CONFIG_DRM_AMD_DC_DCN)
if (enc->afmt && enc->afmt->funcs->afmt_powerdown)
enc->afmt->funcs->afmt_powerdown(enc->afmt);
#endif
/* Disable Audio packets */
REG_UPDATE_5(DP_SEC_CNTL,
DP_SEC_ASP_ENABLE, 0,

2
drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dio_stream_encoder.c
View file

@ -710,8 +710,6 @@ static void enc3_se_setup_dp_audio(
static void enc3_se_dp_audio_enable(
struct stream_encoder *enc)
{
if (enc->afmt->funcs->afmt_poweron)
enc->afmt->funcs->afmt_poweron(enc->afmt);
enc1_se_enable_audio_clock(enc, true);
enc3_se_setup_dp_audio(enc);
enc1_se_enable_dp_audio(enc);