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Fix blank screen after resume with various radeon devices (rhbz 1069027)

This commit is contained in:
Josh Boyer 2015-03-11 10:33:13 -04:00
parent af400aec62
commit 572f0b8016
2 changed files with 44 additions and 0 deletions
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37
drm-radeon-dp-Set-EDP_CONFIGURATION_SET-for-bridge-c.patch Normal file
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@ -0,0 +1,37 @@
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 11 Feb 2015 18:34:36 -0500
Subject: [PATCH] drm/radeon/dp: Set EDP_CONFIGURATION_SET for bridge chips if
necessary
Don't restrict it to just eDP panels. Some LVDS bridge chips require
this. Fixes blank panels on resume on certain laptops. Noticed
by mrnuke on IRC.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=42960
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
drivers/gpu/drm/radeon/atombios_dp.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index db42a670f995..5bf825dfaa09 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -623,10 +623,8 @@ static int radeon_dp_link_train_init(struct radeon_dp_link_train_info *dp_info)
drm_dp_dpcd_writeb(dp_info->aux,
DP_DOWNSPREAD_CTRL, 0);
- if ((dp_info->connector->connector_type == DRM_MODE_CONNECTOR_eDP) &&
- (dig->panel_mode == DP_PANEL_MODE_INTERNAL_DP2_MODE)) {
+ if (dig->panel_mode == DP_PANEL_MODE_INTERNAL_DP2_MODE)
drm_dp_dpcd_writeb(dp_info->aux, DP_EDP_CONFIGURATION_SET, 1);
- }
/* set the lane count on the sink */
tmp = dp_info->dp_lane_count;
--
2.1.0

7
kernel.spec
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@ -667,6 +667,9 @@ Patch26163: Input-synaptics-remove-X250-from-the-topbuttonpad-li.patch
#CVE-2015-2150 rhbz 1196266 1200397
Patch26165: xen-pciback-limit-guest-control-of-command-register.patch
#rhbz 1069027
Patch26166: drm-radeon-dp-Set-EDP_CONFIGURATION_SET-for-bridge-c.patch
# END OF PATCH DEFINITIONS
%endif
@ -1439,6 +1442,9 @@ ApplyPatch Input-synaptics-remove-X250-from-the-topbuttonpad-li.patch
#CVE-2015-2150 rhbz 1196266 1200397
ApplyPatch xen-pciback-limit-guest-control-of-command-register.patch
#rhbz 1069027
ApplyPatch drm-radeon-dp-Set-EDP_CONFIGURATION_SET-for-bridge-c.patch
%if 0%{?aarch64patches}
ApplyPatch kernel-arm64.patch
%ifnarch aarch64 # this is stupid, but i want to notice before secondary koji does.
@ -2310,6 +2316,7 @@ fi
# || ||
%changelog
* Wed Mar 11 2015 Josh Boyer <jwboyer@fedoraproject.org>
- Fix blank screen after resume with various radeon devices (rhbz 1069027)
- CVE-2015-2150 xen: NMIs triggerable by guests (rhbz 1196266 1200397)
- Patch series to fix Lenovo *40 and Carbon X1 touchpads (rhbz 1200777 1200778)