Commit c5f4823b authored by Zidan Wang's avatar Zidan Wang Committed by Mark Brown
Browse files

ASoC: fsl_sai: add 12kHz, 24kHz, 176.4kHz and 192kHz sample rate support 



Normally we don't support 12kHz, 24kHz in audio driver, alsa didn't
have formal definition of 12kHz, 24kHz, but alsa supply a way to
support these sample rates. And add 176.4kHz and 192kHz support.

Signed-off-by: default avatarZidan Wang <zidan.wang@freescale.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c3ecef21

sound/soc/fsl/fsl_sai.c

+21 −3
Original line number Diff line number Diff line
@@ -27,6 +27,17 @@ 
#define FSL_SAI_FLAGS (FSL_SAI_CSR_SEIE |\

		       FSL_SAI_CSR_FEIE)



static u32 fsl_sai_rates[] = {

	8000, 11025, 12000, 16000, 22050,

	24000, 32000, 44100, 48000, 64000,

	88200, 96000, 176400, 192000

};



static struct snd_pcm_hw_constraint_list fsl_sai_rate_constraints = {

	.count = ARRAY_SIZE(fsl_sai_rates),

	.list = fsl_sai_rates,

};



static irqreturn_t fsl_sai_isr(int irq, void *devid)

{

	struct fsl_sai *sai = (struct fsl_sai *)devid;
@@ -519,7 +530,10 @@ static int fsl_sai_startup(struct snd_pcm_substream *substream, 
	regmap_update_bits(sai->regmap, FSL_SAI_xCR3(tx), FSL_SAI_CR3_TRCE,

			   FSL_SAI_CR3_TRCE);



	return 0;

	ret = snd_pcm_hw_constraint_list(substream->runtime, 0,

			SNDRV_PCM_HW_PARAM_RATE, &fsl_sai_rate_constraints);



	return ret;

}



static void fsl_sai_shutdown(struct snd_pcm_substream *substream,
@@ -573,14 +587,18 @@ static struct snd_soc_dai_driver fsl_sai_dai = { 
		.stream_name = "CPU-Playback",

		.channels_min = 1,

		.channels_max = 2,

		.rates = SNDRV_PCM_RATE_8000_96000,

		.rate_min = 8000,

		.rate_max = 192000,

		.rates = SNDRV_PCM_RATE_KNOT,

		.formats = FSL_SAI_FORMATS,

	},

	.capture = {

		.stream_name = "CPU-Capture",

		.channels_min = 1,

		.channels_max = 2,

		.rates = SNDRV_PCM_RATE_8000_96000,

		.rate_min = 8000,

		.rate_max = 192000,

		.rates = SNDRV_PCM_RATE_KNOT,

		.formats = FSL_SAI_FORMATS,

	},

	.ops = &fsl_sai_pcm_dai_ops,

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