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drm/radeon: fix up audio dto programming for DCE2

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Uses a different register than DCE3 asics.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-04-22 09:42:07 -04:00
parent 46892caabe
commit 1586505a5d
2 changed files with 18 additions and 4 deletions
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15
drivers/gpu/drm/radeon/r600_hdmi.c
View file

@ -246,9 +246,18 @@ void r600_audio_set_dto(struct drm_encoder *encoder, u32 clock)
* 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*50) & 0xffffff);
WREG32(DCCG_AUDIO_DTO0_MODULE, (clock*100) & 0xffffff);
WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */
if (ASIC_IS_DCE3(rdev)) {
/* according to the reg specs, this should DCE3.2 only, but in
* practice it seems to cover DCE3.0 as well.
*/
WREG32(DCCG_AUDIO_DTO0_PHASE, base_rate * 50);
WREG32(DCCG_AUDIO_DTO0_MODULE, clock * 100);
WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */
} else {
/* according to the reg specs, this should be DCE2.0 and DCE3.0 */
WREG32(AUDIO_DTO, AUDIO_DTO_PHASE(base_rate * 50) |
AUDIO_DTO_MODULE(clock * 100));
}
}
/*

7
drivers/gpu/drm/radeon/r600d.h
View file

@ -910,7 +910,12 @@
# define TARGET_LINK_SPEED_MASK (0xf << 0)
# define SELECTABLE_DEEMPHASIS (1 << 6)
/* Audio clocks */
/* Audio clocks DCE 2.0/3.0 */
#define AUDIO_DTO 0x7340
# define AUDIO_DTO_PHASE(x) (((x) & 0xffff) << 0)
# define AUDIO_DTO_MODULE(x) (((x) & 0xffff) << 16)
/* Audio clocks DCE 3.2 */
#define DCCG_AUDIO_DTO0_PHASE 0x0514
#define DCCG_AUDIO_DTO0_MODULE 0x0518
#define DCCG_AUDIO_DTO0_LOAD 0x051c