[ 85/99] drm/radeon: fix audio dto programming on DCE4+

From: Greg Kroah-Hartman
Date: Fri Aug 02 2013 - 06:12:17 EST

3.10-stable review patch. If anyone has any objections, please let me know.


From: Alex Deucher <alexander.deucher@xxxxxxx>

commit 7d61d835824f73dc4097b51f800382467c8049c5 upstream.

We need to set the dto source before setting the
dividers otherwise we may get stability problems
with the dto leading to audio playback problems.

Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Reviewed-by: Christian KÃnig <christian.koenig@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/gpu/drm/radeon/evergreen_hdmi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/radeon/evergreen_hdmi.c
+++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c
@@ -157,9 +157,9 @@ static void evergreen_audio_set_dto(stru
* number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE
* is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
WREG32(DCCG_AUDIO_DTO0_PHASE, base_rate * 100);
WREG32(DCCG_AUDIO_DTO0_MODULE, clock * 100);

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