diff options
Diffstat (limited to 'sound/soc/fsl')
| -rw-r--r-- | sound/soc/fsl/fsl_asrc.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c index 432936039de4..7e2d598ffb81 100644 --- a/sound/soc/fsl/fsl_asrc.c +++ b/sound/soc/fsl/fsl_asrc.c @@ -858,6 +858,8 @@ static const struct regmap_config fsl_asrc_regmap_config = { */ static int fsl_asrc_init(struct fsl_asrc *asrc) { + unsigned long ipg_rate; + /* Halt ASRC internal FP when input FIFO needs data for pair A, B, C */ regmap_write(asrc->regmap, REG_ASRCTR, ASRCTR_ASRCEN); @@ -875,11 +877,14 @@ static int fsl_asrc_init(struct fsl_asrc *asrc) regmap_update_bits(asrc->regmap, REG_ASRTFR1, ASRTFR1_TF_BASE_MASK, ASRTFR1_TF_BASE(0xfc)); - /* Set the processing clock for 76KHz to 133M */ - regmap_write(asrc->regmap, REG_ASR76K, 0x06D6); - - /* Set the processing clock for 56KHz to 133M */ - return regmap_write(asrc->regmap, REG_ASR56K, 0x0947); + /* + * Set the period of the 76KHz and 56KHz sampling clocks based on + * the ASRC processing clock. + * On iMX6, ipg_clk = 133MHz, REG_ASR76K = 0x06D6, REG_ASR56K = 0x0947 + */ + ipg_rate = clk_get_rate(asrc->ipg_clk); + regmap_write(asrc->regmap, REG_ASR76K, ipg_rate / 76000); + return regmap_write(asrc->regmap, REG_ASR56K, ipg_rate / 56000); } /** |