diff options
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/fsl/fsl_sai.c | 24 | ||||
| -rw-r--r-- | sound/soc/fsl/fsl_sai.h | 3 |
2 files changed, 27 insertions, 0 deletions
diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c index d9958a52e871..ec572612bb50 100644 --- a/sound/soc/fsl/fsl_sai.c +++ b/sound/soc/fsl/fsl_sai.c @@ -73,6 +73,17 @@ static struct fsl_sai_soc_data fsl_sai_imx7ulp = { .constrain_period_size = false, }; +static struct fsl_sai_soc_data fsl_sai_imx8mp = { + .imx = true, + .dataline = 0xff, + .fifos = 8, + .fifo_depth = 128, + .flags = 0, + .reg_offset = 8, + .constrain_period_size = false, + .mclk_gated_by_bce = true, +}; + static struct fsl_sai_soc_data fsl_sai_imx8mq = { .imx = true, .dataline = 0xff, @@ -782,6 +793,18 @@ static int fsl_sai_hw_params(struct snd_pcm_substream *substream, FSL_SAI_CR5_FBT_MASK, val_cr5); regmap_write(sai->regmap, FSL_SAI_xMR(tx), ~0UL - ((1 << min(channels, slots)) - 1)); + + /* + * Some audio codecs need the MCLK during setup of the codec, however + * for the i.MX 8M Plus it is gated with the receiver/transmiter BCE + * bit. So enable the bit already here. + */ + if (sai->soc->mclk_gated_by_bce) { + /* Switch on MCLK early */ + regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx, offset), + FSL_SAI_CSR_BCE, FSL_SAI_CSR_BCE); + } + return 0; } @@ -1270,6 +1293,7 @@ static const struct of_device_id fsl_sai_ids[] = { { .compatible = "fsl,imx6sx-sai", .data = &fsl_sai_imx6sx }, { .compatible = "fsl,imx6ul-sai", .data = &fsl_sai_imx6ul }, { .compatible = "fsl,imx7ulp-sai", .data = &fsl_sai_imx7ulp }, + { .compatible = "fsl,imx8mp-sai", .data = &fsl_sai_imx8mp }, { .compatible = "fsl,imx8mq-sai", .data = &fsl_sai_imx8mq }, { .compatible = "fsl,imx8qm-sai", .data = &fsl_sai_imx8qm }, { /* sentinel */ } diff --git a/sound/soc/fsl/fsl_sai.h b/sound/soc/fsl/fsl_sai.h index 8476cfffaa25..54e491182db8 100644 --- a/sound/soc/fsl/fsl_sai.h +++ b/sound/soc/fsl/fsl_sai.h @@ -89,6 +89,7 @@ /* SAI Transmit/Receive Control Register */ #define FSL_SAI_CSR_TERE BIT(31) #define FSL_SAI_CSR_SE BIT(30) +#define FSL_SAI_CSR_BCE BIT(28) #define FSL_SAI_CSR_FR BIT(25) #define FSL_SAI_CSR_SR BIT(24) #define FSL_SAI_CSR_xF_SHIFT 16 @@ -225,6 +226,8 @@ struct fsl_sai_soc_data { bool imx; /* True for EDMA because it needs period size multiple of maxburst */ bool constrain_period_size; + /* Set to true if the MCLK to the output pin is gated with bce */ + bool mclk_gated_by_bce; }; struct fsl_sai_verid { |