diff options
| author | Alan Tull <alan.tull@freescale.com> | 2011-05-10 10:19:45 -0500 |
|---|---|---|
| committer | Alan Tull <alan.tull@freescale.com> | 2011-05-11 14:37:17 -0500 |
| commit | 975e747c281219894ef0e7b3f9b99f8216225ad2 (patch) | |
| tree | 19f807e8974af43faafbe5c5af3c726a1cd4705e /sound | |
| parent | e03597ff921b18e4faf7609a2f4aab4bf12becc2 (diff) | |
ENGR00143292 Set scr low power bit when spdif not in use
Set the S/PDIF SCR register low power bit when S/PDIF is not active.
Signed-off-by: Alan Tull <alan.tull@freescale.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/mxc_spdif.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sound/soc/codecs/mxc_spdif.c b/sound/soc/codecs/mxc_spdif.c index 7a994ad82c6a..296d9587d5e9 100644 --- a/sound/soc/codecs/mxc_spdif.c +++ b/sound/soc/codecs/mxc_spdif.c @@ -521,6 +521,7 @@ static int mxc_spdif_playback_prepare(struct snd_pcm_substream *substream, regval = __raw_readl(spdif_base_addr + SPDIF_REG_SCR); regval &= 0xfc33e3; + regval &= ~SCR_LOW_POWER; regval |= SCR_TXFIFO_AUTOSYNC | SCR_TXFIFO_NORMAL | SCR_TXSEL_NORMAL | SCR_USRC_SEL_CHIP | (2 << SCR_TXFIFO_ESEL_BIT); __raw_writel(regval, SPDIF_REG_SCR + spdif_base_addr); @@ -584,6 +585,7 @@ static int mxc_spdif_playback_shutdown(struct snd_pcm_substream *substream, regval = __raw_readl(SPDIF_REG_SCR + spdif_base_addr); regval &= ~SCR_DMA_TX_EN; + regval |= SCR_LOW_POWER; __raw_writel(regval, SPDIF_REG_SCR + spdif_base_addr); clk_disable(plat_data->spdif_audio_clk); @@ -705,7 +707,7 @@ static int mxc_spdif_capture_shutdown(struct snd_pcm_substream *substream, /* turn off RX fifo, disable dma and autosync */ regval = __raw_readl(spdif_base_addr + SPDIF_REG_SCR); - regval |= SCR_RXFIFO_OFF | SCR_RXFIFO_CTL_ZERO; + regval |= SCR_RXFIFO_OFF | SCR_RXFIFO_CTL_ZERO | SCR_LOW_POWER; regval &= ~(SCR_DMA_RX_EN | SCR_RXFIFO_AUTOSYNC); __raw_writel(regval, spdif_base_addr + SPDIF_REG_SCR); |