[alsa-devel] [PATCH 4/4] ASoC: rx1950: Fix clkdiv for 16khz and 48khz
Vasily Khoruzhick
anarsoul at gmail.com
Tue Sep 7 16:04:18 CEST 2010
Usage of 256 as clkdiv gives better rounding error (<1%)
for 16khz and 48khz
Signed-off-by: Vasily Khoruzhick <anarsoul at gmail.com>
---
sound/soc/s3c24xx/rx1950_uda1380.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/sound/soc/s3c24xx/rx1950_uda1380.c b/sound/soc/s3c24xx/rx1950_uda1380.c
index 9552296..ffd5cf2 100644
--- a/sound/soc/s3c24xx/rx1950_uda1380.c
+++ b/sound/soc/s3c24xx/rx1950_uda1380.c
@@ -171,9 +171,9 @@ static int rx1950_hw_params(struct snd_pcm_substream *substream,
case 16000:
case 48000:
clk_source = S3C24XX_CLKSRC_PCLK;
- fs_mode = S3C2410_IISMOD_384FS;
- div = s3c24xx_i2s_get_clockrate() / (384 * rate);
- if (s3c24xx_i2s_get_clockrate() % (384 * rate) > (182 * rate))
+ fs_mode = S3C2410_IISMOD_256FS;
+ div = s3c24xx_i2s_get_clockrate() / (256 * rate);
+ if (s3c24xx_i2s_get_clockrate() % (256 * rate) > (128 * rate))
div++;
break;
case 44100:
--
1.7.2.2
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