Commit 030b28dc authored Mar 02, 2015 by Alex Deucher Committed by Sasha Levin Mar 28, 2015

drm/radeon: do a posting read in si_set_irq

[ Upstream commit 0586915ec10d0ae60de5cd3381ad25a704760402 ]

To make sure the writes go through the pci bridge.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=90741



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

parent 09e605b3

drivers/gpu/drm/radeon/si.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -6192,6 +6192,9 @@ int si_irq_set(struct radeon_device *rdev)

		WREG32(CG_THERMAL_INT, thermal_int);

		/* posting read */
		RREG32(SRBM_STATUS);

		return 0;
		}