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drm/radeon: set speaker allocation for DCE4/5 (v2)

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This updates the audio driver to the speaker allocation
block from the EDID.  A similar change was just implemented
for DCE6/8.

v2: remove unused variables

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Rafał Miłecki <zajec5@gmail.com>
This commit is contained in:
Alex Deucher 2013-08-15 09:34:07 -04:00
parent 6159b65a5f
commit ba7def4fac
2 changed files with 47 additions and 1 deletions
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41
drivers/gpu/drm/radeon/evergreen_hdmi.c
View file

@ -58,6 +58,45 @@ static void evergreen_hdmi_update_ACR(struct drm_encoder *encoder, uint32_t cloc
WREG32(HDMI_ACR_48_1 + offset, acr.n_48khz);
}
static void dce4_afmt_write_speaker_allocation(struct drm_encoder *encoder)
{
struct radeon_device *rdev = encoder->dev->dev_private;
struct drm_connector *connector;
struct radeon_connector *radeon_connector = NULL;
u32 tmp;
u8 *sadb;
int sad_count;
list_for_each_entry(connector, &encoder->dev->mode_config.connector_list, head) {
if (connector->encoder == encoder)
radeon_connector = to_radeon_connector(connector);
}
if (!radeon_connector) {
DRM_ERROR("Couldn't find encoder's connector\n");
return;
}
sad_count = drm_edid_to_speaker_allocation(radeon_connector->edid, &sadb);
if (sad_count < 0) {
DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n", sad_count);
return;
}
/* program the speaker allocation */
tmp = RREG32(AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER);
tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK);
/* set HDMI mode */
tmp |= HDMI_CONNECTION;
if (sad_count)
tmp |= SPEAKER_ALLOCATION(sadb[0]);
else
tmp |= SPEAKER_ALLOCATION(5); /* stereo */
WREG32(AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER, tmp);
kfree(sadb);
}
static void evergreen_hdmi_write_sad_regs(struct drm_encoder *encoder)
{
struct radeon_device *rdev = encoder->dev->dev_private;
@ -271,7 +310,7 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode
if (ASIC_IS_DCE6(rdev)) {
dce6_afmt_write_speaker_allocation(encoder);
} else {
/* fglrx sets 0x0001005f | (x & 0x00fc0000) in 0x5f78 here */
dce4_afmt_write_speaker_allocation(encoder);
}
WREG32(AFMT_AUDIO_PACKET_CONTROL2 + offset,

7
drivers/gpu/drm/radeon/evergreend.h
View file

@ -714,6 +714,13 @@
#define AFMT_GENERIC0_7 0x7138
/* DCE4/5 ELD audio interface */
#define AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER 0x5f78
#define SPEAKER_ALLOCATION(x) (((x) & 0x7f) << 0)
#define SPEAKER_ALLOCATION_MASK (0x7f << 0)
#define SPEAKER_ALLOCATION_SHIFT 0
#define HDMI_CONNECTION (1 << 16)
#define DP_CONNECTION (1 << 17)
#define AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR0 0x5f84 /* LPCM */
#define AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR1 0x5f88 /* AC3 */
#define AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR2 0x5f8c /* MPEG1 */