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ASoC: S3C: Fix PCM RX FIFO settings 

When PCM capture, sound recorded abnormally because of RX FIFO
threshold settings are missing. So, This patch modify PCM RX FIFO
setting codes same as TX.
And for DMA, if PCM RXFIFO_DIPSTICK is not '0', it doesn't effect
to DMA request, because DMA refer RX_FIFO_EMPTY flag as the DMA
request.

Signed-off-by: Seungwhan Youn <sw.youn@samsung.com>
Acked-by: Jassi Brar <jassi.brar@samsung.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Seungwhan Youn 2010-09-10 17:20:00 +09:00 committed by Mark Brown
parent 6946e037ee
commit 0cca901252
2 changed files with 5 additions and 1 deletions
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3
sound/soc/s3c24xx/s3c-pcm.c
View File

@ -102,11 +102,14 @@ static void s3c_pcm_snd_rxctrl(struct s3c_pcm_info *pcm, int on)
ctl = readl(regs + S3C_PCM_CTL);
clkctl = readl(regs + S3C_PCM_CLKCTL);
ctl &= ~(S3C_PCM_CTL_RXDIPSTICK_MASK
<< S3C_PCM_CTL_RXDIPSTICK_SHIFT);
if (on) {
ctl |= S3C_PCM_CTL_RXDMA_EN;
ctl |= S3C_PCM_CTL_RXFIFO_EN;
ctl |= S3C_PCM_CTL_ENABLE;
ctl |= (0x20<<S3C_PCM_CTL_RXDIPSTICK_SHIFT);
clkctl |= S3C_PCM_CLKCTL_SERCLK_EN;
} else {
ctl &= ~S3C_PCM_CTL_RXDMA_EN;

3
sound/soc/s3c24xx/s3c-pcm.h
View File

@ -22,7 +22,8 @@
/* PCM_CTL Bit-Fields */
#define S3C_PCM_CTL_TXDIPSTICK_MASK (0x3f)
#define S3C_PCM_CTL_TXDIPSTICK_SHIFT (13)
#define S3C_PCM_CTL_RXDIPSTICK_MSK (0x3f<<7)
#define S3C_PCM_CTL_RXDIPSTICK_MASK (0x3f)
#define S3C_PCM_CTL_RXDIPSTICK_SHIFT (7)
#define S3C_PCM_CTL_TXDMA_EN (0x1<<6)
#define S3C_PCM_CTL_RXDMA_EN (0x1<<5)
#define S3C_PCM_CTL_TXMSB_AFTER_FSYNC (0x1<<4)