diff options
| author | Shengjiu Wang <shengjiu.wang@nxp.com> | 2019-09-12 17:55:19 +0800 |
|---|---|---|
| committer | Shengjiu Wang <shengjiu.wang@nxp.com> | 2019-09-14 13:43:31 +0800 |
| commit | 3a1a4abc02cfef9fddf0ceef2045c46eaa960c5c (patch) | |
| tree | 04f338f33b1523f33004ba595edb910f1c2a4a87 /sound | |
| parent | 5a15d81a1c19c07846cc394d935524566bcfb298 (diff) | |
MLK-22575-2: ASoC: fsl_easrc: disable PF_BYPASS_MODE
When run conversion in parrallel, one is down sampling, another
is up sampling, so one enables PF_BYPASS_MODE, another disable
PF_BYPASS_MODE, when the allocated slots in a same context
processor, there is noise in the result of down sampling.
If we alway disable PF_BYPASS_MODE, the issue can't be reproduced.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/fsl/fsl_easrc.c | 24 |
1 files changed, 4 insertions, 20 deletions
diff --git a/sound/soc/fsl/fsl_easrc.c b/sound/soc/fsl/fsl_easrc.c index af20f0b3f850..43b0bded5659 100644 --- a/sound/soc/fsl/fsl_easrc.c +++ b/sound/soc/fsl/fsl_easrc.c @@ -565,27 +565,11 @@ static int fsl_easrc_prefilter_config(struct fsl_easrc *easrc, ctx->st2_num_taps = 0; ctx->st1_addexp -= ctx->in_params.fmt.addexp; } else { - /* set pf in bypass mode */ - ret = regmap_update_bits(easrc->regmap, - REG_EASRC_CCE1(ctx_id), - EASRC_CCE1_PF_BYPASS_MASK, - EASRC_CCE1_PF_BYPASS); - if (ret) - return ret; - - /* PF_EXPANSION_FACTOR must be set to 0x0 when - * operating in bypass mode - */ - ret = regmap_update_bits(easrc->regmap, - REG_EASRC_CCE1(ctx_id), - EASRC_CCE1_PF_EXP_MASK, - EASRC_CCE1_PF_EXP(0)); - if (ret) - return ret; - - return 0; + ctx->st1_num_taps = 1; + ctx->st1_coeff = &coeff; + ctx->st1_num_exp = 1; + ctx->st2_num_taps = 0; } - } else { inrate = ctx->in_params.norm_rate; outrate = ctx->out_params.norm_rate; |