diff options
| author | Shengjiu Wang <shengjiu.wang@nxp.com> | 2019-09-12 17:55:19 +0800 |
|---|---|---|
| committer | Dong Aisheng <aisheng.dong@nxp.com> | 2019-11-25 15:48:51 +0800 |
| commit | 1eee7abe7c39268b1782b216c1bb7009f4b4777e (patch) | |
| tree | 67f09896411df919e86846eb6729d96310d6dc23 /sound/soc/fsl/fsl_easrc.c | |
| parent | e5b7fd131b892dc52049640eadc8accaadf41f7f (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>
(cherry picked from commit 3a1a4abc02cfef9fddf0ceef2045c46eaa960c5c)
Diffstat (limited to 'sound/soc/fsl/fsl_easrc.c')
| -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 d45f4cc75065..7da6902fa6fa 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; |