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Commit 8a9832e8 authored by Dave Airlie's avatar Dave Airlie Committed by Dave Airlie
Browse files

drm/radeon/kms: disable D1VGA and D2VGA if enabled 



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: default avatarDave Airlie <airlied@redhat.com>
parent d6f28938

drivers/gpu/drm/radeon/rv515.c

+2 −0
Original line number Original line Diff line number Diff line
@@ -137,6 +137,8 @@ int rv515_mc_wait_for_idle(struct radeon_device *rdev) 




void rv515_vga_render_disable(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,

	WREG32(R_000300_VGA_RENDER_CONTROL,

		RREG32(R_000300_VGA_RENDER_CONTROL) & C_000300_VGA_VSTATUS_CNTL);

		RREG32(R_000300_VGA_RENDER_CONTROL) & C_000300_VGA_VSTATUS_CNTL);

}

}