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drm/radeon/kms: disable D1VGA and D2VGA if enabled
author
Dave Airlie
<airlied@linux.ie>
Tue, 3 Nov 2009 03:23:15 +0000
(13:23 +1000)
committer
Dave Airlie
<airlied@redhat.com>
Tue, 3 Nov 2009 23:53:42 +0000
(09:53 +1000)
Once kms is enabled we don't need these, and it causes a problem
with the Lenovo W500 ACPI brightness implementation, it hangs
in a loop inside an SMI.
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/radeon/rv515.c
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diff --git
a/drivers/gpu/drm/radeon/rv515.c
b/drivers/gpu/drm/radeon/rv515.c
index
41a34c2
..
03c052d
100644
(file)
--- a/
drivers/gpu/drm/radeon/rv515.c
+++ b/
drivers/gpu/drm/radeon/rv515.c
@@
-137,6
+137,8
@@
int rv515_mc_wait_for_idle(struct radeon_device *rdev)
void rv515_vga_render_disable(struct radeon_device *rdev)
{
+ WREG32(R_000330_D1VGA_CONTROL, 0);
+ WREG32(R_000338_D2VGA_CONTROL, 0);
WREG32(R_000300_VGA_RENDER_CONTROL,
RREG32(R_000300_VGA_RENDER_CONTROL) & C_000300_VGA_VSTATUS_CNTL);
}