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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2014-07-30 23:52:04 -0700
committerMark Brown <broonie@linaro.org>2014-07-31 20:36:33 +0100
commit054cd7f4b986a941b56372b743602f7df6569c98 (patch)
tree3555c34d10038b75e2b5ecadb37e0b5d64a25c6b /sound/soc
parentb8c637864a6904a9ba8e0df556d5bdf9f26b2c54 (diff)
downloadlinux-054cd7f4b986a941b56372b743602f7df6569c98.tar.bz2
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.c32
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;