Commit 73acacc7 authored Apr 15, 2014 by Alex Deucher Committed by Christian König Apr 22, 2014

drm/radeon: don't allow runpm=1 on systems with out ATPX

vgaswitcheroo and the ATPX ACPI methods are required to
power down the dGPU.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=73901



Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

parent e9a4099a

drivers/gpu/drm/radeon/radeon_kms.c

+3 −5

Original line number	Diff line number	Diff line
		@@ -107,9 +107,7 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
		flags \|= RADEON_IS_PCI;
		}

		if (radeon_runtime_pm == 1)
		flags \|= RADEON_IS_PX;
		else if ((radeon_runtime_pm == -1) &&
		if ((radeon_runtime_pm != 0) &&
		radeon_has_atpx() &&
		((flags & RADEON_IS_IGP) == 0))
		flags \|= RADEON_IS_PX;