drm: bridge: adv7511: Enable SPDIF DAI

ADV7511 support I2S or SPDIF as audio input interfaces. This commit
enable support for SPDIF.

Signed-off-by: Bogdan Togorean <bogdan.togorean@analog.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200413113513.86091-1-bogdan.togorean@analog.com

diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c b/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c
index a428185..1e9b128 100644 (file)
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c
@@ -119,6 +119,9 @@ int adv7511_hdmi_hw_params(struct device *dev, void *data,
                audio_source = ADV7511_AUDIO_SOURCE_I2S;
                i2s_format = ADV7511_I2S_FORMAT_LEFT_J;
                break;
+       case HDMI_SPDIF:
+               audio_source = ADV7511_AUDIO_SOURCE_SPDIF;
+               break;
        default:
                return -EINVAL;
        }
@@ -175,11 +178,21 @@ static int audio_startup(struct device *dev, void *data)
        /* use Audio infoframe updated info */
        regmap_update_bits(adv7511->regmap, ADV7511_REG_GC(1),
                                BIT(5), 0);
+       /* enable SPDIF receiver */
+       if (adv7511->audio_source == ADV7511_AUDIO_SOURCE_SPDIF)
+               regmap_update_bits(adv7511->regmap, ADV7511_REG_AUDIO_CONFIG,
+                                  BIT(7), BIT(7));
+
        return 0;
 }
 
 static void audio_shutdown(struct device *dev, void *data)
 {
+       struct adv7511 *adv7511 = dev_get_drvdata(dev);
+
+       if (adv7511->audio_source == ADV7511_AUDIO_SOURCE_SPDIF)
+               regmap_update_bits(adv7511->regmap, ADV7511_REG_AUDIO_CONFIG,
+                                  BIT(7), 0);
 }
 
 static int adv7511_hdmi_i2s_get_dai_id(struct snd_soc_component *component,
@@ -213,6 +226,7 @@ static const struct hdmi_codec_pdata codec_data = {
        .ops = &adv7511_codec_ops,
        .max_i2s_channels = 2,
        .i2s = 1,
+       .spdif = 1,
 };
 
 int adv7511_audio_init(struct device *dev, struct adv7511 *adv7511)