[alsa-devel] [PATCH v3] ASoC: tas5086: add regulator consumer support
Daniel Mack
daniel at zonque.org
Thu Jul 3 18:50:49 CEST 2014
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On 07/03/2014 05:12 PM, Mark Brown wrote:
> On Thu, Jul 03, 2014 at 04:56:43PM +0200, Daniel Mack wrote:
>> The TAS5086 has two power domains, DVDD and AVDD. Enable them
>> both as long as the codec is in use.
>>
>> Also, switch on the power to identify the chip at device probe
>> level, and switch it off again afterwards. The codec level will
>> take care for power handling later.
>
> Applied, thanks. One small thing:
>
>> + /* + * The chip has been identified, so we can turn off the
>> power + * again until the dai link is set up. + */ +
>> regulator_bulk_disable(ARRAY_SIZE(priv->supplies),
>> priv->supplies); + + if (ret == 0) + ret =
>> snd_soc_register_codec(&i2c->dev, &soc_codec_dev_tas5086, +
>> &tas5086_dai, 1);
>
> It can be slightly smoother to do the disable after registering so
> that if we immediately cause a card to register and that causes the
> device to become active again we don't bounce the power. Nobody is
> ever likely to notice the difference though.
True. I'll keep an eye on that.
Thanks,
Daniel
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