Unverified Commit ae053fa2 authored by Sia Jee Heng's avatar Sia Jee Heng Committed by Robert Foss
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drm: bridge: adv7511: Support I2S IEC958 encoded PCM format 



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: default avatarSia Jee Heng <jee.heng.sia@intel.com>
Reviewed-by: default avatarRobert Foss <robert.foss@linaro.org>
Signed-off-by: default avatarRobert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210422064015.15285-1-jee.heng.sia@intel.com
parent 178bdba8

drivers/gpu/drm/bridge/adv7511/adv7511.h

+1 −0
Original line number Diff line number Diff line
@@ -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)

drivers/gpu/drm/bridge/adv7511/adv7511_audio.c

+6 −0
Original line number Diff line number Diff line
@@ -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;