Commit d1ba0003 authored by Alex Deucher's avatar Alex Deucher Committed by Luis Henriques

drm/radeon: do a posting read in r100_set_irq

commit f957063f upstream.

To make sure the writes go through the pci bridge.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=90741Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarLuis Henriques <luis.henriques@canonical.com>
parent 1c28096a
......@@ -723,6 +723,10 @@ int r100_irq_set(struct radeon_device *rdev)
tmp |= RADEON_FP2_DETECT_MASK;
}
WREG32(RADEON_GEN_INT_CNTL, tmp);
/* read back to post the write */
RREG32(RADEON_GEN_INT_CNTL);
return 0;
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment