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SubjectRe: [PATCH v6] sound/soc/codecs: add LAPIS Semiconductor ML26124
On Fri, Mar 02, 2012 at 05:16:04PM +0900, Tomoya MORINAGA wrote:
> 2012年3月1日8:51 Mark Brown <broonie@opensource.wolfsonmicro.com>:

> >> +static int ml26124_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
> >> + int div_id, int div)
> >> +{
> >> + struct snd_soc_codec *codec = codec_dai->codec;

> >> + switch (div_id) {
> >> + case ML26124_MCLK:
> >> + ml26124_update_bits(codec, ML26124_CLK_CTL,
> >> + BIT(0) | BIT(1), div);
> >> + break;

> > Why can't the driver calculate this automatically given the MCLK?

> Sorry, I can't understand your saying.
> Why does this driver need to calculate ?
> I think this driver can use "div" value directly.

Why does the user have to set this divider by hand at all? There's
already a set_sysclk() function, just have the user specify the clock
they're providing.

> >> + ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_I2C);

> > You're mixing regmap API usage and ASoC level I2C, this should be
> > _REGMAP.

> Currently, it seems codec control via i2c works well.
> Let me know why I should use SND_SOC_REGMAP not _I2C.

Have you checked what _I2C and _REGMAP do?

> >> +static int __init ml26124_modinit(void)
> >> +{
> >> + int ret;
> >> +
> >> + ret = i2c_add_driver(&ml26124_i2c_driver);
> >> + if (ret != 0)

> > module_i2c_driver().

> Sorry, I can't understand your saying.

Use module_i2c_driver().
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