Messages in this thread | | | Date | Mon, 16 Nov 2015 14:05:47 +0000 | From | Charles Keepax <> | Subject | Re: multi-codec support for arizona-ldo1 was Re: System with multiple arizona (wm5102) codecs |
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On Sat, Nov 14, 2015 at 06:59:16PM +0100, Pavel Machek wrote: > Hi! > > > If you're asking about the regulator API or embedded ALSA both of those > > are me but there are other things in here - the driver you're working > > with and the MFD core at least. At the minute I'm not convinced that > > the problem here isn't just that the MFD and/or MFD core hasn't set up > > the mappings to the child devices properly. > > Ok, good. I don't understand how the things are expected to fit > together. See above. I believe SND_SOC_ macros should have another > argument "device", or maybe regulator names should have "device" name > embedded in them.
Effectively the device is passed it is just implicit. If you look where the regulator is actually registered in soc-dapm.c
case snd_soc_dapm_regulator_supply: w->regulator = devm_regulator_get(dapm->dev, w->name); if (IS_ERR(w->regulator)) {
You see we are requesting the regulator with the dapm device, which will correspond to the CODEC.
Thanks, Charles
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