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From: Jean Delvare <jdelvare-l3A5Bk7waGM@public.gmane.org>
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: "David (ChunMing) Zhou"
	<David1.Zhou-5C7GfCeVMHo@public.gmane.org>,
	"Maxime Ripard"
	<maxime.ripard-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org>,
	"David Airlie" <airlied-cv59FeDIM0c@public.gmane.org>,
	"Sean Paul" <sean-p7yTbzM4H96eqtR555YLDQ@public.gmane.org>,
	"Maarten Lankhorst"
	<maarten.lankhorst-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
	"Leo Li" <sunpeng.li-5C7GfCeVMHo@public.gmane.org>,
	"Daniel Vetter" <daniel-/w4YWyX8dFk@public.gmane.org>,
	"Alex Deucher" <alexander.deucher-5C7GfCeVMHo@public.gmane.org>,
	"Harry Wentland" <harry.wentland-5C7GfCeVMHo@public.gmane.org>,
	"Christian König" <christian.koenig-5C7GfCeVMHo@public.gmane.org>
Subject: [PATCH 1/3] drm/amd: be quiet when no SAD block is found
Date: Fri, 30 Aug 2019 18:15:03 +0200	[thread overview]
Message-ID: <20190830181503.5dd2ed81@endymion> (raw)
In-Reply-To: <20190830181423.4f31a28f@endymion>

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(-)

--- 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) {

-- 
Jean Delvare
SUSE L3 Support
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

  reply	other threads:[~2019-08-30 16:15 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-30 16:14 [PATCH 0/3] drm/edid: don't log errors on absent CEA SAD blocks Jean Delvare
2019-08-30 16:15 ` Jean Delvare [this message]
2019-08-30 16:15 ` [PATCH 2/3] " Jean Delvare
2019-08-30 16:18   ` [PATCH 2/3] drm/radeon: be quiet when no SAD block is found Jean Delvare
2019-08-30 16:16 ` [PATCH 3/3] drm/edid: no CEA extension is not an error Jean Delvare
2019-09-02 11:46   ` Ville Syrjälä
2019-09-02 11:55     ` Jean Delvare
2019-09-02 13:17       ` Ville Syrjälä

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