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

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Date:   Tue, 14 Jun 2022 12:11:20 +0800
From:   Shengjiu Wang <shengjiu.wang@....com>
To:     nicoleotsuka@...il.com, Xiubo.Lee@...il.com, festevam@...il.com,
        shengjiu.wang@...il.com, lgirdwood@...il.com, broonie@...nel.org,
        perex@...ex.cz, tiwai@...e.com, alsa-devel@...a-project.org,
        robh+dt@...nel.org, krzk+dt@...nel.org, devicetree@...r.kernel.org
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/7] ASoC: fsl_sai: Add support for more sample rates

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@....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