radeon/audio: consolidate audio_set_dto() functions
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/dce3_1_afmt.c b/drivers/gpu/drm/radeon/dce3_1_afmt.c
index f7b2659..6cb2f11 100644
--- a/drivers/gpu/drm/radeon/dce3_1_afmt.c
+++ b/drivers/gpu/drm/radeon/dce3_1_afmt.c
@@ -113,6 +113,60 @@
}
}
+void dce3_2_audio_set_dto(struct radeon_device *rdev,
+ struct radeon_crtc *crtc, unsigned int clock)
+{
+ struct radeon_encoder *radeon_encoder;
+ struct radeon_encoder_atom_dig *dig;
+ unsigned int max_ratio = clock / 24000;
+ u32 dto_phase;
+ u32 wallclock_ratio;
+ u32 dto_cntl;
+
+ if (!crtc)
+ return;
+
+ radeon_encoder = to_radeon_encoder(crtc->encoder);
+ dig = radeon_encoder->enc_priv;
+
+ if (!dig)
+ return;
+
+ if (max_ratio >= 8) {
+ dto_phase = 192 * 1000;
+ wallclock_ratio = 3;
+ } else if (max_ratio >= 4) {
+ dto_phase = 96 * 1000;
+ wallclock_ratio = 2;
+ } else if (max_ratio >= 2) {
+ dto_phase = 48 * 1000;
+ wallclock_ratio = 1;
+ } else {
+ dto_phase = 24 * 1000;
+ wallclock_ratio = 0;
+ }
+
+ /* Express [24MHz / target pixel clock] as an exact rational
+ * number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE
+ * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
+ */
+ if (dig->dig_encoder == 0) {
+ dto_cntl = RREG32(DCCG_AUDIO_DTO0_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
+ dto_cntl |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
+ WREG32(DCCG_AUDIO_DTO0_CNTL, dto_cntl);
+ WREG32(DCCG_AUDIO_DTO0_PHASE, dto_phase);
+ WREG32(DCCG_AUDIO_DTO0_MODULE, clock);
+ WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */
+ } else {
+ dto_cntl = RREG32(DCCG_AUDIO_DTO1_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
+ dto_cntl |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
+ WREG32(DCCG_AUDIO_DTO1_CNTL, dto_cntl);
+ WREG32(DCCG_AUDIO_DTO1_PHASE, dto_phase);
+ WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
+ WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */
+ }
+}
+
/*
* update the info frames with the data from the current display mode
*/
@@ -139,7 +193,7 @@
dig->afmt->pin = radeon_audio_get_pin(encoder);
radeon_audio_enable(rdev, dig->afmt->pin, 0);
- r600_audio_set_dto(encoder, mode->clock);
+ radeon_audio_set_dto(encoder, mode->clock);
WREG32(HDMI0_VBI_PACKET_CONTROL + offset,
HDMI0_NULL_SEND); /* send null packets when required */
diff --git a/drivers/gpu/drm/radeon/dce6_afmt.c b/drivers/gpu/drm/radeon/dce6_afmt.c
index c4ff60f..1c87006 100644
--- a/drivers/gpu/drm/radeon/dce6_afmt.c
+++ b/drivers/gpu/drm/radeon/dce6_afmt.c
@@ -248,3 +248,42 @@
WREG32_ENDPOINT(pin->offset, AZ_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,
enable_mask ? AUDIO_ENABLED : 0);
}
+
+void dce6_hdmi_audio_set_dto(struct radeon_device *rdev,
+ struct radeon_crtc *crtc, unsigned int clock)
+{
+ /* Two dtos; generally use dto0 for HDMI */
+ u32 value = 0;
+
+ if (crtc)
+ value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
+
+ WREG32(DCCG_AUDIO_DTO_SOURCE, value);
+
+ /* Express [24MHz / target pixel clock] as an exact rational
+ * 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, 24000);
+ WREG32(DCCG_AUDIO_DTO0_MODULE, clock);
+}
+
+void dce6_dp_audio_set_dto(struct radeon_device *rdev,
+ struct radeon_crtc *crtc, unsigned int clock)
+{
+ /* Two dtos; generally use dto1 for DP */
+ u32 value = 0;
+ value |= DCCG_AUDIO_DTO_SEL;
+
+ if (crtc)
+ value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
+
+ WREG32(DCCG_AUDIO_DTO_SOURCE, value);
+
+ /* Express [24MHz / target pixel clock] as an exact rational
+ * number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE
+ * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
+ */
+ WREG32(DCCG_AUDIO_DTO1_PHASE, 24000);
+ WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
+}
diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c
index 2f29918..38b1c51 100644
--- a/drivers/gpu/drm/radeon/evergreen_hdmi.c
+++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c
@@ -218,54 +218,74 @@
frame[0xC] | (frame[0xD] << 8) | (header[1] << 24));
}
-static void evergreen_audio_set_dto(struct drm_encoder *encoder, u32 clock)
+void dce4_hdmi_audio_set_dto(struct radeon_device *rdev,
+ struct radeon_crtc *crtc, unsigned int clock)
{
- struct drm_device *dev = encoder->dev;
- struct radeon_device *rdev = dev->dev_private;
- struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
- struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
- struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
- u32 base_rate = 24000;
- u32 max_ratio = clock / base_rate;
+ unsigned int max_ratio = clock / 24000;
u32 dto_phase;
- u32 dto_modulo = clock;
u32 wallclock_ratio;
- u32 dto_cntl;
+ u32 value;
- if (!dig || !dig->afmt)
- return;
-
- if (ASIC_IS_DCE6(rdev)) {
- dto_phase = 24 * 1000;
+ if (max_ratio >= 8) {
+ dto_phase = 192 * 1000;
+ wallclock_ratio = 3;
+ } else if (max_ratio >= 4) {
+ dto_phase = 96 * 1000;
+ wallclock_ratio = 2;
+ } else if (max_ratio >= 2) {
+ dto_phase = 48 * 1000;
+ wallclock_ratio = 1;
} else {
- if (max_ratio >= 8) {
- dto_phase = 192 * 1000;
- wallclock_ratio = 3;
- } else if (max_ratio >= 4) {
- dto_phase = 96 * 1000;
- wallclock_ratio = 2;
- } else if (max_ratio >= 2) {
- dto_phase = 48 * 1000;
- wallclock_ratio = 1;
- } else {
- dto_phase = 24 * 1000;
- wallclock_ratio = 0;
- }
- dto_cntl = RREG32(DCCG_AUDIO_DTO0_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
- dto_cntl |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
- WREG32(DCCG_AUDIO_DTO0_CNTL, dto_cntl);
+ dto_phase = 24 * 1000;
+ wallclock_ratio = 0;
}
- /* XXX two dtos; generally use dto0 for hdmi */
+ value = RREG32(DCCG_AUDIO_DTO0_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
+ value |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
+ value &= ~DCCG_AUDIO_DTO1_USE_512FBR_DTO;
+ WREG32(DCCG_AUDIO_DTO0_CNTL, value);
+
+ /* Two dtos; generally use dto0 for HDMI */
+ value = 0;
+
+ if (crtc)
+ value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
+
+ WREG32(DCCG_AUDIO_DTO_SOURCE, value);
+
/* Express [24MHz / target pixel clock] as an exact rational
* 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, dto_phase);
- WREG32(DCCG_AUDIO_DTO0_MODULE, dto_modulo);
+ WREG32(DCCG_AUDIO_DTO0_MODULE, clock);
}
+void dce4_dp_audio_set_dto(struct radeon_device *rdev,
+ struct radeon_crtc *crtc, unsigned int clock)
+{
+ u32 value;
+
+ value = RREG32(DCCG_AUDIO_DTO1_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
+ value |= DCCG_AUDIO_DTO1_USE_512FBR_DTO;
+ WREG32(DCCG_AUDIO_DTO1_CNTL, value);
+
+ /* Two dtos; generally use dto1 for DP */
+ value = 0;
+ value |= DCCG_AUDIO_DTO_SEL;
+
+ if (crtc)
+ value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
+
+ WREG32(DCCG_AUDIO_DTO_SOURCE, value);
+
+ /* Express [24MHz / target pixel clock] as an exact rational
+ * number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE
+ * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
+ */
+ WREG32(DCCG_AUDIO_DTO1_PHASE, 24000);
+ WREG32(DCCG_AUDIO_DTO1_MODULE, rdev->clock.max_pixel_clock * 10);
+}
/*
* update the info frames with the data from the current display mode
@@ -302,7 +322,7 @@
dig->afmt->pin = radeon_audio_get_pin(encoder);
radeon_audio_enable(rdev, dig->afmt->pin, 0);
- evergreen_audio_set_dto(encoder, mode->clock);
+ radeon_audio_set_dto(encoder, mode->clock);
WREG32(HDMI_VBI_PACKET_CONTROL + offset,
HDMI_NULL_SEND); /* send null packets when required */
diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h
index b066d67..ee83d2a 100644
--- a/drivers/gpu/drm/radeon/evergreend.h
+++ b/drivers/gpu/drm/radeon/evergreend.h
@@ -509,6 +509,7 @@
#define DCCG_AUDIO_DTO1_MODULE 0x05c4
#define DCCG_AUDIO_DTO1_LOAD 0x05c8
#define DCCG_AUDIO_DTO1_CNTL 0x05cc
+# define DCCG_AUDIO_DTO1_USE_512FBR_DTO (1 << 3)
/* DCE 4.0 AFMT */
#define HDMI_CONTROL 0x7030
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index 1c49f4d..30580d1 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -380,73 +380,29 @@
value, ~HDMI0_AUDIO_TEST_EN);
}
-void r600_audio_set_dto(struct drm_encoder *encoder, u32 clock)
+void r600_hdmi_audio_set_dto(struct radeon_device *rdev,
+ struct radeon_crtc *crtc, unsigned int clock)
{
- struct drm_device *dev = encoder->dev;
- struct radeon_device *rdev = dev->dev_private;
- struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
- struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
- u32 base_rate = 24000;
- u32 max_ratio = clock / base_rate;
- u32 dto_phase;
- u32 dto_modulo = clock;
- u32 wallclock_ratio;
- u32 dto_cntl;
+ struct radeon_encoder *radeon_encoder;
+ struct radeon_encoder_atom_dig *dig;
- if (!dig || !dig->afmt)
+ if (!crtc)
return;
- if (max_ratio >= 8) {
- dto_phase = 192 * 1000;
- wallclock_ratio = 3;
- } else if (max_ratio >= 4) {
- dto_phase = 96 * 1000;
- wallclock_ratio = 2;
- } else if (max_ratio >= 2) {
- dto_phase = 48 * 1000;
- wallclock_ratio = 1;
- } else {
- dto_phase = 24 * 1000;
- wallclock_ratio = 0;
- }
+ radeon_encoder = to_radeon_encoder(crtc->encoder);
+ dig = radeon_encoder->enc_priv;
- /* there are two DTOs selected by DCCG_AUDIO_DTO_SELECT.
- * doesn't matter which one you use. Just use the first one.
- */
- /* XXX two dtos; generally use dto0 for hdmi */
- /* Express [24MHz / target pixel clock] as an exact rational
- * number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE
- * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
- */
- if (ASIC_IS_DCE32(rdev)) {
- if (dig->dig_encoder == 0) {
- dto_cntl = RREG32(DCCG_AUDIO_DTO0_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
- dto_cntl |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
- WREG32(DCCG_AUDIO_DTO0_CNTL, dto_cntl);
- WREG32(DCCG_AUDIO_DTO0_PHASE, dto_phase);
- WREG32(DCCG_AUDIO_DTO0_MODULE, dto_modulo);
- WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */
- } else {
- dto_cntl = RREG32(DCCG_AUDIO_DTO1_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
- dto_cntl |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
- WREG32(DCCG_AUDIO_DTO1_CNTL, dto_cntl);
- WREG32(DCCG_AUDIO_DTO1_PHASE, dto_phase);
- WREG32(DCCG_AUDIO_DTO1_MODULE, dto_modulo);
- WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */
- }
+ if (!dig)
+ return;
+
+ if (dig->dig_encoder == 0) {
+ WREG32(DCCG_AUDIO_DTO0_PHASE, 24000 * 100);
+ WREG32(DCCG_AUDIO_DTO0_MODULE, clock * 100);
+ WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */
} else {
- /* according to the reg specs, this should DCE3.2 only, but in
- * 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);
- WREG32(DCCG_AUDIO_DTO0_MODULE, clock * 100);
- WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */
- } else {
- WREG32(DCCG_AUDIO_DTO1_PHASE, base_rate * 100);
- WREG32(DCCG_AUDIO_DTO1_MODULE, clock * 100);
- WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */
- }
+ WREG32(DCCG_AUDIO_DTO1_PHASE, 24000 * 100);
+ WREG32(DCCG_AUDIO_DTO1_MODULE, clock * 100);
+ WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */
}
}
@@ -477,7 +433,7 @@
dig->afmt->pin = radeon_audio_get_pin(encoder);
radeon_audio_enable(rdev, dig->afmt->pin, 0);
- r600_audio_set_dto(encoder, mode->clock);
+ radeon_audio_set_dto(encoder, mode->clock);
WREG32_P(HDMI0_AUDIO_PACKET_CONTROL + offset,
HDMI0_AUDIO_SAMPLE_SEND | /* send audio packets */
diff --git a/drivers/gpu/drm/radeon/radeon_audio.c b/drivers/gpu/drm/radeon/radeon_audio.c
index e6c73f8..2a2bf5b 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -62,6 +62,18 @@
struct r600_audio_pin* r600_audio_get_pin(struct radeon_device *rdev);
struct r600_audio_pin* dce6_audio_get_pin(struct radeon_device *rdev);
void dce6_afmt_select_pin(struct drm_encoder *encoder);
+void r600_hdmi_audio_set_dto(struct radeon_device *rdev,
+ struct radeon_crtc *crtc, unsigned int clock);
+void dce3_2_audio_set_dto(struct radeon_device *rdev,
+ struct radeon_crtc *crtc, unsigned int clock);
+void dce4_hdmi_audio_set_dto(struct radeon_device *rdev,
+ struct radeon_crtc *crtc, unsigned int clock);
+void dce4_dp_audio_set_dto(struct radeon_device *rdev,
+ struct radeon_crtc *crtc, unsigned int clock);
+void dce6_hdmi_audio_set_dto(struct radeon_device *rdev,
+ struct radeon_crtc *crtc, unsigned int clock);
+void dce6_dp_audio_set_dto(struct radeon_device *rdev,
+ struct radeon_crtc *crtc, unsigned int clock);
static const u32 pin_offsets[7] =
{
@@ -85,6 +97,12 @@
WREG32(reg, v);
}
+static struct radeon_audio_basic_funcs r600_funcs = {
+ .endpoint_rreg = radeon_audio_rreg,
+ .endpoint_wreg = radeon_audio_wreg,
+ .enable = r600_audio_enable,
+};
+
static struct radeon_audio_basic_funcs dce32_funcs = {
.endpoint_rreg = radeon_audio_rreg,
.endpoint_wreg = radeon_audio_wreg,
@@ -103,16 +121,23 @@
.enable = dce6_audio_enable,
};
+static struct radeon_audio_funcs r600_hdmi_funcs = {
+ .get_pin = r600_audio_get_pin,
+ .set_dto = r600_hdmi_audio_set_dto,
+};
+
static struct radeon_audio_funcs dce32_hdmi_funcs = {
.get_pin = r600_audio_get_pin,
.write_sad_regs = dce3_2_afmt_write_sad_regs,
.write_speaker_allocation = dce3_2_afmt_hdmi_write_speaker_allocation,
+ .set_dto = dce3_2_audio_set_dto,
};
static struct radeon_audio_funcs dce32_dp_funcs = {
.get_pin = r600_audio_get_pin,
.write_sad_regs = dce3_2_afmt_write_sad_regs,
.write_speaker_allocation = dce3_2_afmt_dp_write_speaker_allocation,
+ .set_dto = dce3_2_audio_set_dto,
};
static struct radeon_audio_funcs dce4_hdmi_funcs = {
@@ -120,6 +145,7 @@
.write_sad_regs = evergreen_hdmi_write_sad_regs,
.write_speaker_allocation = dce4_afmt_hdmi_write_speaker_allocation,
.write_latency_fields = dce4_afmt_write_latency_fields,
+ .set_dto = dce4_hdmi_audio_set_dto,
};
static struct radeon_audio_funcs dce4_dp_funcs = {
@@ -127,6 +153,7 @@
.write_sad_regs = evergreen_hdmi_write_sad_regs,
.write_speaker_allocation = dce4_afmt_dp_write_speaker_allocation,
.write_latency_fields = dce4_afmt_write_latency_fields,
+ .set_dto = dce4_dp_audio_set_dto,
};
static struct radeon_audio_funcs dce6_hdmi_funcs = {
@@ -135,6 +162,7 @@
.write_sad_regs = dce6_afmt_write_sad_regs,
.write_speaker_allocation = dce6_afmt_hdmi_write_speaker_allocation,
.write_latency_fields = dce6_afmt_write_latency_fields,
+ .set_dto = dce6_hdmi_audio_set_dto,
};
static struct radeon_audio_funcs dce6_dp_funcs = {
@@ -143,6 +171,7 @@
.write_sad_regs = dce6_afmt_write_sad_regs,
.write_speaker_allocation = dce6_afmt_dp_write_speaker_allocation,
.write_latency_fields = dce6_afmt_write_latency_fields,
+ .set_dto = dce6_dp_audio_set_dto,
};
static void radeon_audio_interface_init(struct radeon_device *rdev)
@@ -155,10 +184,14 @@
rdev->audio.funcs = &dce4_funcs;
rdev->audio.hdmi_funcs = &dce4_hdmi_funcs;
rdev->audio.dp_funcs = &dce4_dp_funcs;
- } else {
+ } else if (ASIC_IS_DCE32(rdev)) {
rdev->audio.funcs = &dce32_funcs;
rdev->audio.hdmi_funcs = &dce32_hdmi_funcs;
rdev->audio.dp_funcs = &dce32_dp_funcs;
+ } else {
+ rdev->audio.funcs = &r600_funcs;
+ rdev->audio.hdmi_funcs = &r600_hdmi_funcs;
+ rdev->audio.dp_funcs = 0;
}
}
@@ -393,3 +426,13 @@
rdev->audio.enabled = false;
}
+
+void radeon_audio_set_dto(struct drm_encoder *encoder, unsigned int clock)
+{
+ struct radeon_device *rdev = encoder->dev->dev_private;
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ struct radeon_crtc *crtc = to_radeon_crtc(encoder->crtc);
+
+ if (radeon_encoder->audio && radeon_encoder->audio->set_dto)
+ radeon_encoder->audio->set_dto(rdev, crtc, clock);
+}
diff --git a/drivers/gpu/drm/radeon/radeon_audio.h b/drivers/gpu/drm/radeon/radeon_audio.h
index 5844993..06b80de 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.h
+++ b/drivers/gpu/drm/radeon/radeon_audio.h
@@ -51,6 +51,8 @@
struct cea_sad *sads, int sad_count);
void (*write_speaker_allocation)(struct drm_encoder *encoder,
u8 *sadb, int sad_count);
+ void (*set_dto)(struct radeon_device *rdev,
+ struct radeon_crtc *crtc, unsigned int clock);
};
int radeon_audio_init(struct radeon_device *rdev);
@@ -69,5 +71,6 @@
void radeon_audio_enable(struct radeon_device *rdev,
struct r600_audio_pin *pin, u8 enable_mask);
void radeon_audio_fini(struct radeon_device *rdev);
+void radeon_audio_set_dto(struct drm_encoder *encoder, unsigned int clock);
#endif
diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h
index 8499924..cbd91d2 100644
--- a/drivers/gpu/drm/radeon/sid.h
+++ b/drivers/gpu/drm/radeon/sid.h
@@ -901,6 +901,16 @@
/* 0x6e98, 0x7a98, 0x10698, 0x11298, 0x11e98, 0x12a98 */
#define CRTC_STATUS_FRAME_COUNT 0x6e98
+/* Audio clocks */
+#define DCCG_AUDIO_DTO_SOURCE 0x05ac
+# define DCCG_AUDIO_DTO0_SOURCE_SEL(x) ((x) << 0) /* crtc0 - crtc5 */
+# define DCCG_AUDIO_DTO_SEL (1 << 4) /* 0=dto0 1=dto1 */
+
+#define DCCG_AUDIO_DTO0_PHASE 0x05b0
+#define DCCG_AUDIO_DTO0_MODULE 0x05b4
+#define DCCG_AUDIO_DTO1_PHASE 0x05b8
+#define DCCG_AUDIO_DTO1_MODULE 0x05bc
+
#define AFMT_AUDIO_SRC_CONTROL 0x713c
#define AFMT_AUDIO_SRC_SELECT(x) (((x) & 7) << 0)
/* AFMT_AUDIO_SRC_SELECT