@@ -428,8 +428,13 @@ static int hdmi_codec_startup(struct snd_pcm_substream *substream,
{
struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+ bool has_capture = !hcp->hcd.no_i2s_capture;
+ bool has_playback = !hcp->hcd.no_i2s_playback;
int ret = 0;
+ if (!((has_playback && tx) || (has_capture && !tx)))
+ return 0;
+
mutex_lock(&hcp->lock);
if (hcp->busy) {
dev_err(dai->dev, "Only one simultaneous stream supported!\n");
@@ -468,6 +473,12 @@ static void hdmi_codec_shutdown(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;
+ bool has_capture = !hcp->hcd.no_i2s_capture;
+ bool has_playback = !hcp->hcd.no_i2s_playback;
+
+ if (!((has_playback && tx) || (has_capture && !tx)))
+ return;
hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data);
Currently only one stream is supported. This isn't usally a problem until you have a multi codec audio card. Because the audio card will run startup and shutdown on both capture and playback streams. So if your hdmi-codec only support either playback or capture. Then ALSA can't open for playback and capture. This patch will ignore if startup and shutdown are called with a non supported stream. Thus, allowing an audio card like this: +-+ cpu1 <--@-| |-> codec1 (HDMI-CODEC) | |<- codec2 (NOT HDMI-CODEC) +-+ Signed-off-by: Emil Svendsen <emas@bang-olufsen.dk> --- sound/soc/codecs/hdmi-codec.c | 11 +++++++++++ 1 file changed, 11 insertions(+)