diff options
| -rw-r--r-- | Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt | 1 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/rsrc-card.c | 22 |
2 files changed, 17 insertions, 6 deletions
diff --git a/Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt b/Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt index 2b2caa281ce3..5abebf7898d9 100644 --- a/Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt +++ b/Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt @@ -30,6 +30,7 @@ Optional subnode properties: - frame-inversion : bool property. Add this if the dai-link uses frame clock inversion. - convert-rate : platform specified sampling rate convert +- convert-channels : platform specified channel size convert - audio-prefix : see audio-routing - audio-routing : A list of the connections between audio components. Each entry is a pair of strings, the first being the connection's sink, diff --git a/sound/soc/sh/rcar/rsrc-card.c b/sound/soc/sh/rcar/rsrc-card.c index 545e94245e62..1bc7ecfc42a9 100644 --- a/sound/soc/sh/rcar/rsrc-card.c +++ b/sound/soc/sh/rcar/rsrc-card.c @@ -66,6 +66,7 @@ struct rsrc_card_priv { struct snd_soc_dai_link *dai_link; int dai_num; u32 convert_rate; + u32 convert_channels; }; #define rsrc_priv_to_dev(priv) ((priv)->snd_card.dev) @@ -144,11 +145,16 @@ static int rsrc_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval *channels = hw_param_interval(params, + SNDRV_PCM_HW_PARAM_CHANNELS); - if (!priv->convert_rate) - return 0; + if (priv->convert_rate) + rate->min = + rate->max = priv->convert_rate; - rate->min = rate->max = priv->convert_rate; + if (priv->convert_channels) + channels->min = + channels->max = priv->convert_channels; return 0; } @@ -436,9 +442,13 @@ static int rsrc_card_parse_of(struct device_node *node, /* sampling rate convert */ of_property_read_u32(node, "convert-rate", &priv->convert_rate); - dev_dbg(dev, "New rsrc-audio-card: %s (%d)\n", - priv->snd_card.name ? priv->snd_card.name : "", - priv->convert_rate); + /* channels transfer */ + of_property_read_u32(node, "convert-channels", &priv->convert_channels); + + dev_dbg(dev, "New rsrc-audio-card: %s\n", + priv->snd_card.name ? priv->snd_card.name : ""); + dev_dbg(dev, "SRC : convert_rate %d\n", priv->convert_rate); + dev_dbg(dev, "CTU : convert_channels %d\n", priv->convert_channels); ret = rsrc_card_dai_link_of(node, priv); if (ret < 0) |