diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2015-03-02 20:43:53 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-26 15:00:57 +0100 |
| commit | 693fcdbda7ecc657abb6e83d306c7c43c4b766bc (patch) | |
| tree | 95f13c98bd7307fa68b13eaf7e26bf444df24f64 | |
| parent | 96e612822a99f6a19f2a5a9e3405da7123a762d6 (diff) | |
drm/radeon: do a posting read in si_set_irq
commit 0586915ec10d0ae60de5cd3381ad25a704760402 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/radeon/si.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index 03add5d5542e..87dbbb65769b 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -5778,5 +5778,8 @@ int si_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk) mdelay(100); + /* posting read */ + RREG32(SRBM_STATUS); + return 0; } |