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drm/radeon: program DCE2 audio dto just like DCE3 

commit 55d4e020fb8ddd3896a8cd3351028f5c3a2c4bd3 upstream.

Seems to work like the DCE3 version despite what
the register spec says.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=71975

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alex Deucher 2013-11-25 13:20:59 -05:00 committed by Greg Kroah-Hartman
parent 82607fbefa
commit 14655c3cc0
1 changed files with 2 additions and 6 deletions
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8
drivers/gpu/drm/radeon/r600_hdmi.c
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@ -279,9 +279,9 @@ void r600_audio_set_dto(struct drm_encoder *encoder, u32 clock)
WREG32(DCCG_AUDIO_DTO1_MODULE, clock * 100);
WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */
}
} else if (ASIC_IS_DCE3(rdev)) {
} else {
/* according to the reg specs, this should DCE3.2 only, but in
* practice it seems to cover DCE3.0/3.1 as well.
* practice it seems to cover DCE2.0/3.0/3.1 as well.
*/
if (dig->dig_encoder == 0) {
WREG32(DCCG_AUDIO_DTO0_PHASE, base_rate * 100);
@ -292,10 +292,6 @@ void r600_audio_set_dto(struct drm_encoder *encoder, u32 clock)
WREG32(DCCG_AUDIO_DTO1_MODULE, clock * 100);
WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */
}
} else {
/* according to the reg specs, this should be DCE2.0 and DCE3.0/3.1 */
WREG32(AUDIO_DTO, AUDIO_DTO_PHASE(base_rate / 10) |
AUDIO_DTO_MODULE(clock / 10));
}
}