From 056409c7dc30b0e9d8ac50b91146994178a44be7 Mon Sep 17 00:00:00 2001 From: Shengjiu Wang Date: Thu, 26 Nov 2020 14:36:48 +0800 Subject: [PATCH] UPSTREAM: ASoC: hdmi-codec: Add RX support HDMI interface can also be used as receiver, this patch is to add such support. The most difference compare with TX is that RX don't need to get edid information. Bug: 239396464 Change-Id: Ib5f9f347cd50abe95fa9c8a4856bd1a91117ca67 Signed-off-by: Shengjiu Wang Link: https://lore.kernel.org/r/1606372608-2329-1-git-send-email-shengjiu.wang@nxp.com Signed-off-by: Mark Brown Signed-off-by: Sugar Zhang (cherry picked from commit 144f836646989783cb018d00fa69f3f8dab58349) --- sound/soc/codecs/hdmi-codec.c | 33 ++++++++++++++++++++++++++++----- 1 file changed, 28 insertions(+), 5 deletions(-) diff --git a/sound/soc/codecs/hdmi-codec.c b/sound/soc/codecs/hdmi-codec.c index e8410b2433de..d5fcc4db8284 100644 --- a/sound/soc/codecs/hdmi-codec.c +++ b/sound/soc/codecs/hdmi-codec.c @@ -282,6 +282,7 @@ struct hdmi_codec_priv { static const struct snd_soc_dapm_widget hdmi_widgets[] = { SND_SOC_DAPM_OUTPUT("TX"), + SND_SOC_DAPM_OUTPUT("RX"), }; enum { @@ -389,6 +390,7 @@ static int hdmi_codec_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); + bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; int ret = 0; mutex_lock(&hcp->lock); @@ -404,7 +406,7 @@ static int hdmi_codec_startup(struct snd_pcm_substream *substream, goto err; } - if (hcp->hcd.ops->get_eld) { + if (tx && hcp->hcd.ops->get_eld) { ret = hcp->hcd.ops->get_eld(dai->dev->parent, hcp->hcd.data, hcp->eld, sizeof(hcp->eld)); if (ret) @@ -660,14 +662,20 @@ static int hdmi_dai_probe(struct snd_soc_dai *dai) { struct snd_soc_dapm_context *dapm; struct hdmi_codec_daifmt *daifmt; - struct snd_soc_dapm_route route = { - .sink = "TX", - .source = dai->driver->playback.stream_name, + struct snd_soc_dapm_route route[] = { + { + .sink = "TX", + .source = dai->driver->playback.stream_name, + }, + { + .sink = dai->driver->capture.stream_name, + .source = "RX", + }, }; int ret; dapm = snd_soc_component_get_dapm(dai->component); - ret = snd_soc_dapm_add_routes(dapm, &route, 1); + ret = snd_soc_dapm_add_routes(dapm, route, 2); if (ret) return ret; @@ -757,6 +765,14 @@ static const struct snd_soc_dai_driver hdmi_i2s_dai = { .formats = I2S_FORMATS, .sig_bits = 24, }, + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 8, + .rates = HDMI_RATES, + .formats = I2S_FORMATS, + .sig_bits = 24, + }, .ops = &hdmi_codec_i2s_dai_ops, .pcm_new = hdmi_codec_pcm_new, }; @@ -773,6 +789,13 @@ static const struct snd_soc_dai_driver hdmi_spdif_dai = { .rates = HDMI_RATES, .formats = SPDIF_FORMATS, }, + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 2, + .rates = HDMI_RATES, + .formats = SPDIF_FORMATS, + }, .ops = &hdmi_codec_spdif_dai_ops, .pcm_new = hdmi_codec_pcm_new, };