[PATCH] ASoC: codecs-ac97: Remove rate constraints

[Maciej S. Szmigiero]

Remove rate constraints from generic ASoC AC'97 CODEC.
    
Supported rates should be detected and constrained anyway by
AC'97 generic code - was tested with VT1613 CODEC and iMX6 SSI
controller.

This way this driver can be used for platforms which don't need
specialized AC'97 CODEC drivers while at the same avoiding
code duplication from implementing equivalent functionality in
a controller driver.
    
Signed-off-by: Maciej Szmigiero <mail@xxxxxxxxxxxxxxxxxxxxx>

--- a/sound/soc/codecs/ac97.c
+++ b/sound/soc/codecs/ac97.c
@@ -44,10 +44,6 @@ static int ac97_prepare(struct snd_pcm_substream *substream,
 	return snd_ac97_set_rate(ac97, reg, substream->runtime->rate);
 }
 
-#define STD_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
-		SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 |\
-		SNDRV_PCM_RATE_48000)
-
 static const struct snd_soc_dai_ops ac97_dai_ops = {
 	.prepare	= ac97_prepare,
 };
@@ -58,13 +54,13 @@ static struct snd_soc_dai_driver ac97_dai = {
 		.stream_name = "AC97 Playback",
 		.channels_min = 1,
 		.channels_max = 2,
-		.rates = STD_AC97_RATES,
+		.rates = SNDRV_PCM_RATE_KNOT,
 		.formats = SND_SOC_STD_AC97_FMTS,},
 	.capture = {
 		.stream_name = "AC97 Capture",
 		.channels_min = 1,
 		.channels_max = 2,
-		.rates = STD_AC97_RATES,
+		.rates = SNDRV_PCM_RATE_KNOT,
 		.formats = SND_SOC_STD_AC97_FMTS,},
 	.ops = &ac97_dai_ops,
 };

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