diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2015-03-26 04:01:46 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-03-27 15:58:20 -0700 |
| commit | af7e2be96623785816c1a6e521307b7af11ad016 (patch) | |
| tree | 77997b7aefb98175fbe0da5cd93bdef2b84cc7fa | |
| parent | 415f1cb29d3be865b034b528058c7115bc262f43 (diff) | |
| download | linux-af7e2be96623785816c1a6e521307b7af11ad016.tar.bz2 | |
ASoC: rsrc-card: add .be_hw_params_fixup support for convert rate
Current rsnd-dpcm-card is supporting DPCM FE/BE sound card.
This patch adds .be_hw_params_fixup and enabled sampling convert rate.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt | 1 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/rsrc-card.c | 27 |
2 files changed, 26 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt b/Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt index 12e287ed4dce..c64155027288 100644 --- a/Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt +++ b/Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt @@ -28,6 +28,7 @@ Optional subnode properties: dai-link uses bit clock inversion. - frame-inversion : bool property. Add this if the dai-link uses frame clock inversion. +- convert-rate : platform specified sampling rate convert Required CPU/CODEC subnodes properties: diff --git a/sound/soc/sh/rcar/rsrc-card.c b/sound/soc/sh/rcar/rsrc-card.c index 3baeab726bc3..a68517afe615 100644 --- a/sound/soc/sh/rcar/rsrc-card.c +++ b/sound/soc/sh/rcar/rsrc-card.c @@ -63,6 +63,7 @@ struct rsrc_card_priv { } dai_props[RSRC_FB_NUM]; struct snd_soc_codec_conf codec_conf; struct snd_soc_dai_link dai_link[RSRC_FB_NUM]; + u32 convert_rate; }; #define rsrc_priv_to_dev(priv) ((priv)->snd_card.dev) @@ -154,6 +155,21 @@ static int rsrc_card_dai_init(struct snd_soc_pcm_runtime *rtd) return 0; } +static int rsrc_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hw_params *params) +{ + 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); + + if (!priv->convert_rate) + return 0; + + rate->min = rate->max = priv->convert_rate; + + return 0; +} + static int rsrc_card_sub_parse_of(struct rsrc_card_priv *priv, struct device_node *np, @@ -347,6 +363,9 @@ static int rsrc_card_dai_link_of(struct device_node *node, dai_link->ops = &rsrc_card_ops; dai_link->init = rsrc_card_dai_init; + if (idx == IDX_CODEC) + dai_link->be_hw_params_fixup = rsrc_card_be_hw_params_fixup; + dev_dbg(dev, "\tname : %s\n", dai_link->stream_name); dev_dbg(dev, "\tcpu : %s / %04x / %d\n", dai_link->cpu_dai_name, @@ -394,8 +413,12 @@ static int rsrc_card_parse_of(struct device_node *node, priv->snd_card.of_dapm_routes = of_data->routes; priv->snd_card.num_of_dapm_routes = of_data->num_routes; - dev_dbg(dev, "New rsrc-audio-card: %s\n", priv->snd_card.name ? - priv->snd_card.name : ""); + /* 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); /* FE/BE */ for (i = 0; i < RSRC_FB_NUM; i++) { |