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drm/amd: be quiet when no SAD block is found 

It is fine for displays without audio functionality to not provide
any SAD block in their EDID. Do not log an error in that case,
just return quietly.

This fixes half of bug fdo#107825:
https://bugs.freedesktop.org/show_bug.cgi?id=107825

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jean Delvare 2019-09-04 11:12:48 +02:00 committed by Alex Deucher
parent 13238d4fa6
commit ae2a349597
5 changed files with 11 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
View File

@ -1352,10 +1352,10 @@ static void dce_v10_0_audio_write_sad_regs(struct drm_encoder *encoder)
}
sad_count = drm_edid_to_sad(amdgpu_connector_edid(connector), &sads);
if (sad_count <= 0) {
if (sad_count < 0)
DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
if (sad_count <= 0)
return;
}
BUG_ON(!sads);
for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) {

4
drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
View File

@ -1378,10 +1378,10 @@ static void dce_v11_0_audio_write_sad_regs(struct drm_encoder *encoder)
}
sad_count = drm_edid_to_sad(amdgpu_connector_edid(connector), &sads);
if (sad_count <= 0) {
if (sad_count < 0)
DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
if (sad_count <= 0)
return;
}
BUG_ON(!sads);
for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) {

4
drivers/gpu/drm/amd/amdgpu/dce_v6_0.c
View File

@ -1257,10 +1257,10 @@ static void dce_v6_0_audio_write_sad_regs(struct drm_encoder *encoder)
}
sad_count = drm_edid_to_sad(amdgpu_connector_edid(connector), &sads);
if (sad_count <= 0) {
if (sad_count < 0)
DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
if (sad_count <= 0)
return;
}
for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) {
u32 tmp = 0;

4
drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
View File

@ -1305,10 +1305,10 @@ static void dce_v8_0_audio_write_sad_regs(struct drm_encoder *encoder)
}
sad_count = drm_edid_to_sad(amdgpu_connector_edid(connector), &sads);
if (sad_count <= 0) {
if (sad_count < 0)
DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
if (sad_count <= 0)
return;
}
BUG_ON(!sads);
for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) {

7
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
View File

@ -97,11 +97,10 @@ enum dc_edid_status dm_helpers_parse_edid_caps(
(struct edid *) edid->raw_edid);
sad_count = drm_edid_to_sad((struct edid *) edid->raw_edid, &sads);
if (sad_count <= 0) {
DRM_INFO("SADs count is: %d, don't need to read it\n",
sad_count);
if (sad_count < 0)
DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
if (sad_count <= 0)
return result;
}
edid_caps->audio_mode_count = sad_count < DC_MAX_AUDIO_DESC_COUNT ? sad_count : DC_MAX_AUDIO_DESC_COUNT;
for (i = 0; i < edid_caps->audio_mode_count; ++i) {