Support IEC958 encoded PCM format for ADV7511 so that ADV7511 HDMI audio driver can accept the IEC958 data from the I2S input. Signed-off-by: Sia Jee Heng <jee.heng.sia@xxxxxxxxx> --- drivers/gpu/drm/bridge/adv7511/adv7511.h | 1 + drivers/gpu/drm/bridge/adv7511/adv7511_audio.c | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511.h b/drivers/gpu/drm/bridge/adv7511/adv7511.h index a9bb734366ae..05e3abb5a0c9 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7511.h +++ b/drivers/gpu/drm/bridge/adv7511/adv7511.h @@ -191,6 +191,7 @@ #define ADV7511_I2S_FORMAT_I2S 0 #define ADV7511_I2S_FORMAT_RIGHT_J 1 #define ADV7511_I2S_FORMAT_LEFT_J 2 +#define ADV7511_I2S_IEC958_DIRECT 3 #define ADV7511_PACKET(p, x) ((p) * 0x20 + (x)) #define ADV7511_PACKET_SDP(x) ADV7511_PACKET(0, x) diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c b/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c index 45838bd08d37..61f4a38e7d2b 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c @@ -101,6 +101,10 @@ static int adv7511_hdmi_hw_params(struct device *dev, void *data, case 20: len = ADV7511_I2S_SAMPLE_LEN_20; break; + case 32: + if (fmt->bit_fmt != SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE) + return -EINVAL; + fallthrough; case 24: len = ADV7511_I2S_SAMPLE_LEN_24; break; @@ -112,6 +116,8 @@ static int adv7511_hdmi_hw_params(struct device *dev, void *data, case HDMI_I2S: audio_source = ADV7511_AUDIO_SOURCE_I2S; i2s_format = ADV7511_I2S_FORMAT_I2S; + if (fmt->bit_fmt == SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE) + i2s_format = ADV7511_I2S_IEC958_DIRECT; break; case HDMI_RIGHT_J: audio_source = ADV7511_AUDIO_SOURCE_I2S; -- 2.18.0
