ASoC: doc: ReSTize codec_to_codec.txt

Yet another simple conversion from a plain text file.
Renamed to codec-to-codec.rst to align with others.
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Documentation/sound/alsa/soc/codec_to_codec.txt → Documentation/sound/soc/codec-to-codec.rst

+==============================================
 Creating codec to codec dai link for ALSA dapm
-===================================================
+==============================================
 
 Mostly the flow of audio is always from CPU to codec so your system
 will look as below:
+::
 
    ---------          ---------
-|         |  dai   |         |
+  |         |  dai   |         |
       CPU    ------->    codec
-|         |        |         |
+  |         |        |         |
    ---------          ---------
 
 In case your system looks as below:
+::
+
                        ---------
                       |         |
                         codec-2
@@ -20,9 +24,9 @@ In case your system looks as below:
                          dai-2
                            |
    ----------          ---------
-|          |  dai-1 |         |
+  |          |  dai-1 |         |
       CPU     ------->  codec-1
-|          |        |         |
+  |          |        |         |
    ----------          ---------
                            |
                          dai-3
@@ -42,20 +46,21 @@ connection should be used.
 
 Your dai_link should appear as below in your machine
 file:
+::
 
-/*
+ /*
   * this pcm stream only supports 24 bit, 2 channel and
   * 48k sampling rate.
   */
-static const struct snd_soc_pcm_stream dsp_codec_params = {
+ static const struct snd_soc_pcm_stream dsp_codec_params = {
         .formats = SNDRV_PCM_FMTBIT_S24_LE,
         .rate_min = 48000,
         .rate_max = 48000,
         .channels_min = 2,
         .channels_max = 2,
-};
+ };
 
-{
+ {
     .name = "CPU-DSP",
     .stream_name = "CPU-DSP",
     .cpu_dai_name = "samsung-i2s.0",
@@ -66,8 +71,8 @@ static const struct snd_soc_pcm_stream dsp_codec_params = {
             | SND_SOC_DAIFMT_CBM_CFM,
     .ignore_suspend = 1,
     .params = &dsp_codec_params,
-},
-{
+ },
+ {
     .name = "DSP-CODEC",
     .stream_name = "DSP-CODEC",
     .cpu_dai_name = "wm0010-sdi2",
@@ -77,7 +82,7 @@ static const struct snd_soc_pcm_stream dsp_codec_params = {
             | SND_SOC_DAIFMT_CBM_CFM,
     .ignore_suspend = 1,
     .params = &dsp_codec_params,
-},
+ },
 
 Above code snippet is motivated from sound/soc/samsung/speyside.c.
 

Documentation/sound/soc/index.rst

@@ -17,3 +17,4 @@ The documentation is spilt into the following sections:-
    clocking
    jack
    dpcm
+   codec-to-codec