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Commit 7d61d835 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon: fix audio dto programming on DCE4+ 



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: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
parent bf903e41

drivers/gpu/drm/radeon/evergreen_hdmi.c

+1 −1
Original line number Diff line number Diff line
@@ -157,9 +157,9 @@ static void evergreen_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_DTO_SOURCE, DCCG_AUDIO_DTO0_SOURCE_SEL(radeon_crtc->crtc_id));

	WREG32(DCCG_AUDIO_DTO0_PHASE, base_rate * 100);

	WREG32(DCCG_AUDIO_DTO0_MODULE, clock * 100);

	WREG32(DCCG_AUDIO_DTO_SOURCE, DCCG_AUDIO_DTO0_SOURCE_SEL(radeon_crtc->crtc_id));

}