diff mbox series

[1/3] drm/amd: be quiet when no SAD block is found

Message ID 20190830181503.5dd2ed81@endymion (mailing list archive)
State New, archived
Headers show
Series drm/edid: don't log errors on absent CEA SAD blocks | expand

Commit Message

Jean Delvare Aug. 30, 2019, 4:15 p.m. UTC 
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

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>
---
 drivers/gpu/drm/amd/amdgpu/dce_v10_0.c                    |    4 ++--
 drivers/gpu/drm/amd/amdgpu/dce_v11_0.c                    |    4 ++--
 drivers/gpu/drm/amd/amdgpu/dce_v6_0.c                     |    4 ++--
 drivers/gpu/drm/amd/amdgpu/dce_v8_0.c                     |    4 ++--
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c |    7 +++----
 5 files changed, 11 insertions(+), 12 deletions(-)
diff mbox series

Patch

--- linux-5.2.orig/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c	2019-07-08 00:41:56.000000000 +0200
+++ linux-5.2/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c	2019-08-30 14:28:46.081682223 +0200
@@ -1345,10 +1345,10 @@  static void dce_v10_0_audio_write_sad_re
 	}
 
 	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++) {
--- linux-5.2.orig/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c	2019-07-08 00:41:56.000000000 +0200
+++ linux-5.2/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c	2019-08-30 14:29:27.276205310 +0200
@@ -1371,10 +1371,10 @@  static void dce_v11_0_audio_write_sad_re
 	}
 
 	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++) {
--- linux-5.2.orig/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c	2019-07-08 00:41:56.000000000 +0200
+++ linux-5.2/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c	2019-08-30 17:58:53.613953458 +0200
@@ -1248,10 +1248,10 @@  static void dce_v6_0_audio_write_sad_reg
 	}
 
 	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;
--- linux-5.2.orig/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c	2019-07-08 00:41:56.000000000 +0200
+++ linux-5.2/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c	2019-08-30 14:29:01.948883708 +0200
@@ -1298,10 +1298,10 @@  static void dce_v8_0_audio_write_sad_reg
 	}
 
 	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++) {
--- linux-5.2.orig/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c	2019-07-08 00:41:56.000000000 +0200
+++ linux-5.2/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c	2019-08-30 14:31:03.086421910 +0200
@@ -98,11 +98,10 @@  enum dc_edid_status dm_helpers_parse_edi
 			(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) {