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authorLiam Girdwood <lg@opensource.wolfsonmicro.com>2006-10-19 14:35:56 -0400
committerJaroslav Kysela <perex@suse.cz>2007-02-09 03:01:07 -0500
commita71a468a50f1385855e28864e26251b02df829bb (patch)
tree243daee96ea5c55c88a186aa03b7917f7ad533f6 /sound/soc/pxa
parent543a0fbe18d0b44f3d037fe6b59458fa0c0d5e4b (diff)
[ALSA] ASoC: Add support for BCLK based on (Rate * Chn * Word Size)
This patch adds support for the DAI BCLK to be generated by multiplying Rate * Channels * Word Size (RCW). This now gives 3 options for BCLK clocking and synchronisation :- 1. BCLK = Rate * x 2. BCLK = MCLK / x 3. BCLK = Rate * Chn * Word Size. (New) Changes:- o Add support for RCW generation of BCLK o Update Documentation to include RCW. o Update DAI documentation for label = value DAI modes. o Add RCW support to wm8731, wm8750 and pxa2xx-i2s drivers. Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/soc/pxa')
-rw-r--r--sound/soc/pxa/pxa2xx-i2s.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c
index 99f1da32744b..98b167fe68e5 100644
--- a/sound/soc/pxa/pxa2xx-i2s.c
+++ b/sound/soc/pxa/pxa2xx-i2s.c
@@ -126,7 +126,8 @@ static struct snd_soc_dai_mode pxa2xx_i2s_modes[] = {
126 .pcmrate = PXA_I2S_RATES, 126 .pcmrate = PXA_I2S_RATES,
127 .pcmdir = PXA_I2S_DIR, 127 .pcmdir = PXA_I2S_DIR,
128 .fs = SND_SOC_FS_ALL, 128 .fs = SND_SOC_FS_ALL,
129 .bfs = SND_SOC_FSB(64), 129 .flags = SND_SOC_DAI_BFS_RATE,
130 .bfs = 64,
130 .priv = 0x48, 131 .priv = 0x48,
131 }, 132 },
132}; 133};