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| author | Xiubo Li <Li.Xiubo@freescale.com> | 2014-02-14 09:34:36 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-02-23 14:26:37 +0900 |
| commit | 6ff62eedce4f7756b092d276165d8e11edab9f28 (patch) | |
| tree | b52cfb38d78ce03aa49ac270d556b5d0e099c69f | |
| parent | ff2878644eed7765a917a02d0af864697ceaf73e (diff) | |
| download | linux-6ff62eedce4f7756b092d276165d8e11edab9f28.tar.bz2 | |
ASoC: simple-card: add slot information parsing supports
For some CPU/CODEC DAI devices the slot information maybe needed. This
patch adds the slot information parsing for simple-card driver.
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
| -rw-r--r-- | Documentation/devicetree/bindings/sound/simple-card.txt | 5 | ||||
| -rw-r--r-- | include/sound/simple_card.h | 2 | ||||
| -rw-r--r-- | sound/soc/generic/simple-card.c | 18 |
3 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/simple-card.txt b/Documentation/devicetree/bindings/sound/simple-card.txt index 05273583490c..b30c222f9cd3 100644 --- a/Documentation/devicetree/bindings/sound/simple-card.txt +++ b/Documentation/devicetree/bindings/sound/simple-card.txt @@ -18,6 +18,8 @@ Optional properties: Each entry is a pair of strings, the first being the connection's sink, the second being the connection's source. +- dai-tdm-slot-num : Please refer to tdm-slot.txt. +- dai-tdm-slot-width : Please refer to tdm-slot.txt. Required subnodes: @@ -56,6 +58,9 @@ sound { "Headphone Jack", "HP_OUT", "External Speaker", "LINE_OUT"; + dai-tdm-slot-num = <2>; + dai-tdm-slot-width = <8>; + simple-audio-card,cpu { sound-dai = <&sh_fsi2 0>; }; diff --git a/include/sound/simple_card.h b/include/sound/simple_card.h index e1ac996c8feb..9b0ac77177b6 100644 --- a/include/sound/simple_card.h +++ b/include/sound/simple_card.h @@ -18,6 +18,8 @@ struct asoc_simple_dai { const char *name; unsigned int fmt; unsigned int sysclk; + int slots; + int slot_width; }; struct asoc_simple_card_info { diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index 4fe8abc6e216..bdd176ddff07 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -9,11 +9,14 @@ * published by the Free Software Foundation. */ #include <linux/clk.h> +#include <linux/device.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/string.h> #include <sound/simple_card.h> +#include <sound/soc-dai.h> +#include <sound/soc.h> struct simple_card_data { struct snd_soc_card snd_card; @@ -44,6 +47,16 @@ static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai, } } + if (set->slots) { + ret = snd_soc_dai_set_tdm_slot(dai, 0, 0, + set->slots, + set->slot_width); + if (ret && ret != -ENOTSUPP) { + dev_err(dai->dev, "simple-card: set_tdm_slot error\n"); + goto err; + } + } + ret = 0; err: @@ -94,6 +107,11 @@ asoc_simple_card_sub_parse_of(struct device_node *np, if (ret < 0) goto parse_error; + /* parse TDM slot */ + ret = snd_soc_of_parse_tdm_slot(np, &dai->slots, &dai->slot_width); + if (ret) + goto parse_error; + /* * bitclock-inversion, frame-inversion * bitclock-master, frame-master |