Attachment 58148 Details for Bug 44755 – fix

[patch] fix

0001-drm-radeon-kms-fix-hdmi-duallink-checks.patch (text/plain), 2.56 KB, created by Alex Deucher on 2012-03-07 16:03:51 UTC

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Creator: Alex Deucher

Created: 2012-03-07 16:03:51 UTC

Size: 2.56 KB

patch

obsolete

>From 520f2cf924dd55537a8ab058f0e8b4f0fb78c043 Mon Sep 17 00:00:00 2001
>From: Alex Deucher <alexander.deucher@amd.com>
>Date: Wed, 7 Mar 2012 18:58:51 -0500
>Subject: [PATCH] drm/radeon/kms: fix hdmi duallink checks
>
>All pre-SI chips are limited to 165 Mhz for single link.
>Code in question will be re-enabled when SI support is added.
>
>Fixes:
>https://bugs.freedesktop.org/show_bug.cgi?id=44755
>https://bugzilla.kernel.org/show_bug.cgi?id=42887
>
>Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
>Cc: stable@vger.kernel.org
>
>diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
>index e7cb3ab..931a41d 100644
>--- a/drivers/gpu/drm/radeon/radeon_connectors.c
>+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
>@@ -1057,7 +1057,7 @@ static int radeon_dvi_mode_valid(struct drm_connector *connector,
> 		    (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_B))
> 			return MODE_OK;
> 		else if (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_A) {
>-			if (ASIC_IS_DCE3(rdev)) {
>+			if (0) {
> 				/* HDMI 1.3+ supports max clock of 340 Mhz */
> 				if (mode->clock > 340000)
> 					return MODE_CLOCK_HIGH;
>diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
>index 9419c51..26e9270 100644
>--- a/drivers/gpu/drm/radeon/radeon_encoders.c
>+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
>@@ -307,8 +307,6 @@ void radeon_panel_mode_fixup(struct drm_encoder *encoder,
> bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
> 				    u32 pixel_clock)
> {
>-	struct drm_device *dev = encoder->dev;
>-	struct radeon_device *rdev = dev->dev_private;
> 	struct drm_connector *connector;
> 	struct radeon_connector *radeon_connector;
> 	struct radeon_connector_atom_dig *dig_connector;
>@@ -326,7 +324,7 @@ bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
> 	case DRM_MODE_CONNECTOR_HDMIB:
> 		if (radeon_connector->use_digital) {
> 			/* HDMI 1.3 supports up to 340 Mhz over single link */
>-			if (ASIC_IS_DCE3(rdev) && drm_detect_hdmi_monitor(radeon_connector->edid)) {
>+			if (0 && drm_detect_hdmi_monitor(radeon_connector->edid)) {
> 				if (pixel_clock > 340000)
> 					return true;
> 				else
>@@ -348,7 +346,7 @@ bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
> 			return false;
> 		else {
> 			/* HDMI 1.3 supports up to 340 Mhz over single link */
>-			if (ASIC_IS_DCE3(rdev) && drm_detect_hdmi_monitor(radeon_connector->edid)) {
>+			if (0 && drm_detect_hdmi_monitor(radeon_connector->edid)) {
> 				if (pixel_clock > 340000)
> 					return true;
> 				else
>-- 
>1.7.7.5
>

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