From: Alex Deucher <alexander.deucher@xxxxxxx>
Uses a different register than DCE3 asics.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/radeon/r600_hdmi.c | 15 ++++++++++++---
drivers/gpu/drm/radeon/r600d.h | 7 ++++++-
2 files changed, 18 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index 2e15888..47f180a 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -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));
+ }
}
/*
diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h
index 441bdb8..6105b25 100644
--- a/drivers/gpu/drm/radeon/r600d.h
+++ b/drivers/gpu/drm/radeon/r600d.h
@@ -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
--
1.7.7.5
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