This is a note to let you know that I've just added the patch titled
drm/radeon/DCE4+: clear bios scratch dpms bit (v2)
to the 3.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-radeon-dce4-clear-bios-scratch-dpms-bit-v2.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 6802d4bad83f50081b2788698570218aaff8d10e Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@xxxxxxx>
Date: Mon, 27 Jan 2014 18:29:35 -0500
Subject: drm/radeon/DCE4+: clear bios scratch dpms bit (v2)
From: Alex Deucher <alexander.deucher@xxxxxxx>
commit 6802d4bad83f50081b2788698570218aaff8d10e upstream.
The BlankCrtc table in some DCE8 boards has some
logic shortcuts for the vbios when this bit is set.
Clear it for driver use.
v2: fix typo
Bug:
https://bugs.freedesktop.org/show_bug.cgi?id=73420
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/radeon_atombios.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -3944,6 +3944,10 @@ void radeon_atom_initialize_bios_scratch
/* tell the bios not to handle mode switching */
bios_6_scratch |= ATOM_S6_ACC_BLOCK_DISPLAY_SWITCH;
+ /* clear the vbios dpms state */
+ if (ASIC_IS_DCE4(rdev))
+ bios_2_scratch &= ~ATOM_S2_DEVICE_DPMS_STATE;
+
if (rdev->family >= CHIP_R600) {
WREG32(R600_BIOS_2_SCRATCH, bios_2_scratch);
WREG32(R600_BIOS_6_SCRATCH, bios_6_scratch);
Patches currently in stable-queue which might be from alexander.deucher@xxxxxxx are
queue-3.12/drm-radeon-skip-colorbuffer-checking-if-color_info.format-is-set-to-invalid.patch
queue-3.12/drm-radeon-dce4-clear-bios-scratch-dpms-bit-v2.patch
queue-3.12/drm-radeon-warn-users-when-hw_i2c-is-enabled-v2.patch
queue-3.12/drm-radeon-add-uvd-support-for-oland.patch
queue-3.12/drm-radeon-dce8-workaround-for-atom-blankcrtc-table.patch
queue-3.12/radeon-pm-guard-access-to-rdev-pm.power_state-array.patch
queue-3.12/drm-radeon-fix-surface-sync-in-fence-on-cayman-v2.patch
queue-3.12/drm-radeon-set-the-full-cache-bit-for-fences-on-r7xx.patch
queue-3.12/drm-radeon-fix-dac-interrupt-handling-on-dce5.patch
queue-3.12/drm-radeon-disable-ss-on-dp-for-dce3.x.patch
queue-3.12/drm-radeon-dpm-disable-mclk-switching-on-desktop-rv770.patch
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