The patch ASoC: nau8810: automatic selecting BCLK in I2S master mode has been applied to the asoc tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From 20b83421e8eea43e28cb7aeea3e3f865f86aa69d Mon Sep 17 00:00:00 2001 From: John Hsu <KCHSU0@xxxxxxxxxxx> Date: Wed, 13 Mar 2019 16:52:01 +0800 Subject: [PATCH] ASoC: nau8810: automatic selecting BCLK in I2S master mode The driver will select correct BCLK automatically according to BCLK and FS information in I2S master mode. Signed-off-by: John Hsu <KCHSU0@xxxxxxxxxxx> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> --- sound/soc/codecs/nau8810.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/sound/soc/codecs/nau8810.c b/sound/soc/codecs/nau8810.c index 39512a78a556..5d300b790f78 100644 --- a/sound/soc/codecs/nau8810.c +++ b/sound/soc/codecs/nau8810.c @@ -667,6 +667,24 @@ static int nau8810_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_soc_component *component = dai->component; struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component); int val_len = 0, val_rate = 0, ret = 0; + unsigned int ctrl_val, bclk_fs, bclk_div; + + /* Select BCLK configuration if the codec as master. */ + regmap_read(nau8810->regmap, NAU8810_REG_CLOCK, &ctrl_val); + if (ctrl_val & NAU8810_CLKIO_MASTER) { + /* get the bclk and fs ratio */ + bclk_fs = snd_soc_params_to_bclk(params) / params_rate(params); + if (bclk_fs <= 32) + bclk_div = NAU8810_BCLKDIV_8; + else if (bclk_fs <= 64) + bclk_div = NAU8810_BCLKDIV_4; + else if (bclk_fs <= 128) + bclk_div = NAU8810_BCLKDIV_2; + else + return -EINVAL; + regmap_update_bits(nau8810->regmap, NAU8810_REG_CLOCK, + NAU8810_BCLKSEL_MASK, bclk_div); + } switch (params_width(params)) { case 16: -- 2.20.1 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
