Re: [PATCH 1/6] ASoC: rt5645: change micbias widget type to supply.

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> -----Original Message-----
> From: Mark Brown [mailto:broonie@xxxxxxxxxx]
> Sent: Wednesday, January 03, 2018 6:51 PM
> To: Hans de Goede
> Cc: Bard Liao; Oder Chiou; Takashi Iwai; alsa-devel@xxxxxxxxxxxxxxxx
> Subject: Re: [PATCH 1/6] ASoC: rt5645: change micbias widget type to supply.
> 
> On Tue, Jan 02, 2018 at 07:53:09PM +0100, Hans de Goede wrote:
> 
> > Register "micbias1" and "micbias2" to supply widegts as modern drivers do.
> 
> > -	SND_SOC_DAPM_MICBIAS("micbias1", RT5645_PWR_ANLG2,
> > -			RT5645_PWR_MB1_BIT, 0),
> > -	SND_SOC_DAPM_MICBIAS("micbias2", RT5645_PWR_ANLG2,
> > -			RT5645_PWR_MB2_BIT, 0),
> > +	SND_SOC_DAPM_SUPPLY("micbias1", RT5645_PWR_ANLG2,
> > +			RT5645_PWR_MB1_BIT, 0, NULL, 0),
> > +	SND_SOC_DAPM_SUPPLY("micbias2", RT5645_PWR_ANLG2,
> > +			RT5645_PWR_MB2_BIT, 0, NULL, 0),
> 
> This is a good change to make but we have machines with the rt5645, are
> we sure none of them use microphones?  The two widget types work
> differently so it needs some checking and possibly machine driver
> updates to convert.

It's late today. I will check it tomorrow. I will send patches for
those machine driver and device tree which use rt5645 or rt5650
micbias.


> 
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