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authorAlex Deucher <alexander.deucher@amd.com>2012-02-19 21:42:03 -0500
committerDave Airlie <airlied@redhat.com>2012-02-22 10:30:06 +0000
commit3ac0eb6d62fde0a60a6c5c61e562af1db8fbf712 (patch)
treed1a934fc3283be67df7eb4c6aa4adaca6d890b10 /drivers/gpu
parent6b7746e8768e1c550b320d5af761f73e5aa37f76 (diff)
downloadlinux-3ac0eb6d62fde0a60a6c5c61e562af1db8fbf712.tar.bz2
drm/radeon/kms/atom: dpms bios scratch reg updates
dpms bits not used on DCE4+ Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/radeon/radeon_atombios.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 9e72daeeddc6..1f53ae74ada1 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -3020,6 +3020,9 @@ radeon_atombios_encoder_dpms_scratch_regs(struct drm_encoder *encoder, bool on)
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
uint32_t bios_2_scratch;
+ if (ASIC_IS_DCE4(rdev))
+ return;
+
if (rdev->family >= CHIP_R600)
bios_2_scratch = RREG32(R600_BIOS_2_SCRATCH);
else