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ASoC: fsl_sai: Fix value of FSL_SAI_CR1_RFW_MASK 

The fifo_depth is 64 on i.MX8QM/i.MX8QXP, 128 on i.MX8MQ, 16 on
i.MX7ULP.

Original FSL_SAI_CR1_RFW_MASK value 0x1F is not suitable for
these platform, the FIFO watermark mask should be updated
according to the fifo_depth.

Fixes: a860fac420 ("ASoC: fsl_sai: Add support for imx7ulp/imx8mq")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/1596176895-28724-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Shengjiu Wang 2020-07-31 14:28:15 +08:00 committed by Mark Brown
parent da3f23fde9
commit 5aef1ff239
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 4 additions and 3 deletions
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5
sound/soc/fsl/fsl_sai.c
View File

@ -680,10 +680,11 @@ static int fsl_sai_dai_probe(struct snd_soc_dai *cpu_dai)
regmap_write(sai->regmap, FSL_SAI_RCSR(ofs), 0);
regmap_update_bits(sai->regmap, FSL_SAI_TCR1(ofs),
FSL_SAI_CR1_RFW_MASK,
FSL_SAI_CR1_RFW_MASK(sai->soc_data->fifo_depth),
sai->soc_data->fifo_depth - FSL_SAI_MAXBURST_TX);
regmap_update_bits(sai->regmap, FSL_SAI_RCR1(ofs),
FSL_SAI_CR1_RFW_MASK, FSL_SAI_MAXBURST_RX - 1);
FSL_SAI_CR1_RFW_MASK(sai->soc_data->fifo_depth),
FSL_SAI_MAXBURST_RX - 1);
snd_soc_dai_init_dma_data(cpu_dai, &sai->dma_params_tx,
&sai->dma_params_rx);

2
sound/soc/fsl/fsl_sai.h
View File

@ -94,7 +94,7 @@
#define FSL_SAI_CSR_FRDE BIT(0)
/* SAI Transmit and Receive Configuration 1 Register */
#define FSL_SAI_CR1_RFW_MASK 0x1f
#define FSL_SAI_CR1_RFW_MASK(x) ((x) - 1)
/* SAI Transmit and Receive Configuration 2 Register */
#define FSL_SAI_CR2_SYNC BIT(30)