drm/radeon/kms/atom: dpms bios scratch reg updates
Alex Deucher [Mon, 20 Feb 2012 02:42:03 +0000 (21:42 -0500)]
dpms bits not used on DCE4+

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/radeon_atombios.c

index 9e72dae..1f53ae7 100644 (file)
@@ -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