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drm/radeon: fix DP audio support for APU with DCE4.1 display engine

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Properly setup the DFS divider for DP audio for DCE4.1.

Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Slava Grigorev
2016-01-26 17:35:57 -05:00
committed by Alex Deucher
parent a64c9dab1c
commit fe6fc1f132
3 changed files with 44 additions and 8 deletions
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5
drivers/gpu/drm/radeon/evergreend.h
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@@ -511,6 +511,11 @@
#define DCCG_AUDIO_DTO1_CNTL 0x05cc
# define DCCG_AUDIO_DTO1_USE_512FBR_DTO (1 << 3)
#define DCE41_DENTIST_DISPCLK_CNTL 0x049c
# define DENTIST_DPREFCLK_WDIVIDER(x) (((x) & 0x7f) << 24)
# define DENTIST_DPREFCLK_WDIVIDER_MASK (0x7f << 24)
# define DENTIST_DPREFCLK_WDIVIDER_SHIFT 24
/* DCE 4.0 AFMT */
#define HDMI_CONTROL 0x7030
# define HDMI_KEEPOUT_MODE (1 << 0)