[alsa-devel] [PATCH] ASoC: nau8825: automatic BCLK and LRC divde in master mode
Provide the automatic configurable LRC and BCLK divide. The driver will make configurations of LRC and BCLK automatically according to BCLK and FS information in master mode.
Signed-off-by: John Hsu KCHSU0@nuvoton.com --- sound/soc/codecs/nau8825.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c index 4576f98..97fbeba 100644 --- a/sound/soc/codecs/nau8825.c +++ b/sound/soc/codecs/nau8825.c @@ -1231,7 +1231,7 @@ static int nau8825_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_codec *codec = dai->codec; struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); - unsigned int val_len = 0, osr; + unsigned int val_len = 0, osr, ctrl_val, bclk_fs, bclk_div;
nau8825_sema_acquire(nau8825, 3 * HZ);
@@ -1261,6 +1261,24 @@ static int nau8825_hw_params(struct snd_pcm_substream *substream, osr_adc_sel[osr].clk_src << NAU8825_CLK_ADC_SRC_SFT); }
+ /* make BCLK and LRC divde configuration if the codec as master. */ + regmap_read(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL2, &ctrl_val); + if (ctrl_val & NAU8825_I2S_MS_MASTER) { + /* get the bclk and fs ratio */ + bclk_fs = snd_soc_params_to_bclk(params) / params_rate(params); + if (bclk_fs <= 32) + bclk_div = 2; + else if (bclk_fs <= 64) + bclk_div = 1; + else if (bclk_fs <= 128) + bclk_div = 0; + else + return -EINVAL; + regmap_update_bits(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL2, + NAU8825_I2S_LRC_DIV_MASK | NAU8825_I2S_BLK_DIV_MASK, + ((bclk_div + 1) << NAU8825_I2S_LRC_DIV_SFT) | bclk_div); + } + switch (params_width(params)) { case 16: val_len |= NAU8825_I2S_DL_16; -- 2.6.4
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On Tue, Feb 14, 2017 at 01:44:33PM +0800, John Hsu wrote:
Provide the automatic configurable LRC and BCLK divide. The driver will make configurations of LRC and BCLK automatically according to BCLK and FS information in master mode.
This patch *still* does not apply. Please, try sending to yourself and applying with git am before you resend to me. Check that the patch is not being corrupted when you send it (things like space/tab conversion for example).
Hi, On 2/14/2017 7:09 PM, Mark Brown wrote:
On Tue, Feb 14, 2017 at 01:44:33PM +0800, John Hsu wrote:
Provide the automatic configurable LRC and BCLK divide. The driver will make configurations of LRC and BCLK automatically according to BCLK and FS information in master mode.
This patch *still* does not apply. Please, try sending to yourself and applying with git am before you resend to me. Check that the patch is not being corrupted when you send it (things like space/tab conversion for example).
I have resent the patch to myself. And copy the mail content to a new patch. Then try the command as follows, and it seems work fine. git am --signoff < ASoC-nau8825-auto-BCLK-and-LRC-divide.patch
Here are the git logs in my site.
commit ce7f61934872c0bc701d93de2db39260b44a8ebd Author: John Hsu KCHSU0@nuvoton.com Date: Wed Feb 15 17:13:43 2017 +0800
ASoC: nau8825: automatic BCLK and LRC divde in master mode
Provide the automatic configurable LRC and BCLK divide. The driver will make configurations of LRC and BCLK automatically according to BCLK and FS information in master mode.
Signed-off-by: John Hsu KCHSU0@nuvoton.com
commit 71d7b89701f4e2bee4710bd229e254156006f69b Merge: 92dfbd1 af4b654 66ead50 Author: Mark Brown broonie@kernel.org Date: Thu Feb 9 23:48:22 2017 +0000
Merge remote-tracking branches 'asoc/topic/wm8753' and 'asoc/topic/zte' into asoc-next
commit 92dfbd159676290c359f94ff0e5637eb00d4b170
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On Thu, Feb 16, 2017 at 10:08:38AM +0800, John Hsu wrote:
On 2/14/2017 7:09 PM, Mark Brown wrote:
This patch *still* does not apply. Please, try sending to yourself and applying with git am before you resend to me. Check that the patch is not being corrupted when you send it (things like space/tab conversion for example).
I have resent the patch to myself. And copy the mail content to a new patch. Then try the command as follows, and it seems work fine. git am --signoff < ASoC-nau8825-auto-BCLK-and-LRC-divide.patch
I looked again, you've got at least space/tab conversion problems in there in the copy that ended up in my mailbox. Perhaps there was some temporary problem in the mail system your company uses, can you try resending to me and see if it's sorted?
participants (2)
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John Hsu -
Mark Brown