diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2014-07-30 23:52:04 -0700 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-07-31 20:36:33 +0100 |
| commit | 054cd7f4b986a941b56372b743602f7df6569c98 (patch) | |
| tree | 3555c34d10038b75e2b5ecadb37e0b5d64a25c6b /sound/soc | |
| parent | b8c637864a6904a9ba8e0df556d5bdf9f26b2c54 (diff) | |
ASoC: rsnd: care detail of SRC_BSDSR
Driver should care more detail of SRC_BSDSR settings.
The sound includes noise without this patch
if it used SRC.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/sh/rcar/src.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c index 4d39505c21cf..1ef811a26bd7 100644 --- a/sound/soc/sh/rcar/src.c +++ b/sound/soc/sh/rcar/src.c @@ -483,15 +483,45 @@ static struct rsnd_mod_ops rsnd_src_gen1_ops = { static int rsnd_src_set_convert_rate_gen2(struct rsnd_mod *mod, struct rsnd_dai *rdai) { + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + struct device *dev = rsnd_priv_to_dev(priv); + struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); + struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); + struct rsnd_src *src = rsnd_mod_to_src(mod); + uint ratio; int ret; + /* 6 - 1/6 are very enough ratio for SRC_BSDSR */ + if (!rsnd_src_convert_rate(src)) + ratio = 0; + else if (rsnd_src_convert_rate(src) > runtime->rate) + ratio = 100 * rsnd_src_convert_rate(src) / runtime->rate; + else + ratio = 100 * runtime->rate / rsnd_src_convert_rate(src); + + if (ratio > 600) { + dev_err(dev, "FSO/FSI ratio error\n"); + return -EINVAL; + } + ret = rsnd_src_set_convert_rate(mod, rdai); if (ret < 0) return ret; rsnd_mod_write(mod, SRC_SRCCR, 0x00011110); - rsnd_mod_write(mod, SRC_BSDSR, 0x01800000); + switch (rsnd_mod_id(mod)) { + case 5: + case 6: + case 7: + case 8: + rsnd_mod_write(mod, SRC_BSDSR, 0x02400000); + break; + default: + rsnd_mod_write(mod, SRC_BSDSR, 0x01800000); + break; + } + rsnd_mod_write(mod, SRC_BSISR, 0x00100060); return 0; |