drm/radeon: add audio support for DCE6/8 GPUs (v12)
Similar to DCE4/5, but supports multiple audio pins
which can be assigned per afmt block.
v2: rework the driver to handle more than one audio
pin.
v3: try different dto reg
v4: properly program dto
v5 (ck): change dto programming order
v6: program speaker allocation block
v7: rebase
v8: rebase on Rafał's changes
v9: integrated Rafał's comments, update to latest
drm_edid_to_speaker_allocation API
v10: add missing line break in error message
v11: add back audio enabled messages
v12: fix copy paste typo in r600_audio_enable
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Rafał Miłecki <zajec5@gmail.com>
diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c
index b0e2800..c5acdf0 100644
--- a/drivers/gpu/drm/radeon/evergreen_hdmi.c
+++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c
@@ -32,6 +32,9 @@
#include "evergreend.h"
#include "atom.h"
+extern void dce6_afmt_write_sad_regs(struct drm_encoder *encoder);
+extern void dce6_afmt_select_pin(struct drm_encoder *encoder);
+
/*
* update the N and CTS parameters for a given pixel clock rate
*/
@@ -157,22 +160,26 @@
if (!dig || !dig->afmt)
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 {
+ if (ASIC_IS_DCE6(rdev)) {
dto_phase = 24 * 1000;
- wallclock_ratio = 0;
+ } 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_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);
/* XXX two dtos; generally use dto0 for hdmi */
/* Express [24MHz / target pixel clock] as an exact rational
@@ -266,7 +273,13 @@
AFMT_AUDIO_CHANNEL_ENABLE(0xff));
/* fglrx sets 0x40 in 0x5f80 here */
- evergreen_hdmi_write_sad_regs(encoder);
+
+ if (ASIC_IS_DCE6(rdev)) {
+ dce6_afmt_select_pin(encoder);
+ dce6_afmt_write_sad_regs(encoder);
+ } else {
+ evergreen_hdmi_write_sad_regs(encoder);
+ }
err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
if (err < 0) {
@@ -302,6 +315,8 @@
void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable)
{
+ 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;
@@ -314,6 +329,15 @@
if (!enable && !dig->afmt->enabled)
return;
+ if (enable) {
+ if (ASIC_IS_DCE6(rdev))
+ dig->afmt->pin = dce6_audio_get_pin(rdev);
+ else
+ dig->afmt->pin = r600_audio_get_pin(rdev);
+ } else {
+ dig->afmt->pin = NULL;
+ }
+
dig->afmt->enabled = enable;
DRM_DEBUG("%sabling HDMI interface @ 0x%04X for encoder 0x%x\n",
