[PATCH 3/7] ASoC: fsl_sai: Add support for more sample rates

Shengjiu Wang shengjiu.wang at nxp.com
Tue Jun 14 06:11:20 CEST 2022


Add support for more sample rates, because PDM format
bitstream has higher sample rates. for example DSD512
format, the bit clock is 22.5792MHz, if the word width
is U8_LE, then the max sample rate is 2822400.

Signed-off-by: Shengjiu Wang <shengjiu.wang at nxp.com>
---
 sound/soc/fsl/fsl_sai.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index d11ee3b6f163..9d2828b55c07 100644
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -30,7 +30,8 @@
 static const unsigned int fsl_sai_rates[] = {
 	8000, 11025, 12000, 16000, 22050,
 	24000, 32000, 44100, 48000, 64000,
-	88200, 96000, 176400, 192000
+	88200, 96000, 176400, 192000, 352800,
+	384000, 705600, 768000, 1411200, 2822400,
 };
 
 static const struct snd_pcm_hw_constraint_list fsl_sai_rate_constraints = {
@@ -763,7 +764,7 @@ static struct snd_soc_dai_driver fsl_sai_dai_template = {
 		.channels_min = 1,
 		.channels_max = 32,
 		.rate_min = 8000,
-		.rate_max = 192000,
+		.rate_max = 2822400,
 		.rates = SNDRV_PCM_RATE_KNOT,
 		.formats = FSL_SAI_FORMATS,
 	},
@@ -772,7 +773,7 @@ static struct snd_soc_dai_driver fsl_sai_dai_template = {
 		.channels_min = 1,
 		.channels_max = 32,
 		.rate_min = 8000,
-		.rate_max = 192000,
+		.rate_max = 2822400,
 		.rates = SNDRV_PCM_RATE_KNOT,
 		.formats = FSL_SAI_FORMATS,
 	},
-- 
2.17.1



More information about the Alsa-devel mailing list