[alsa-devel] ASoC: TLV320AIC3x: Adding additional functionality for 3106 with [Patch] for discuss

Peter Ujfalusi peter.ujfalusi at ti.com
Thu Mar 17 10:26:11 CET 2016


On 03/16/16 18:53, Timur Karaldin wrote:
>> your mail client does not seem to wrap the lines correctly, can you check that.
> I have no idea how these lines should looks, so it's very hard for me to see
> what's wrong. Could you point me how it looks in original?

They are looong.

see: https://wiki.openstack.org/wiki/MailingListEtiquette

> Ok, now it's much more clear for me.
> Another question is register behaviour during soft reset. There is
> "aic3x_set_power" handle. In this handle kernel makes SOFT_RESET, markes cache
> as dirty, then power down the codec for handle power down request.
> But as I could see main volumes like "HP DAC" and "PCM" stores values between
> close and open in mixer and I could not see any code to handle it. On the
> other hand my controls do not save states, as you mentioned because of
> SOFT_RESET, could you explain such different behaviour?

All cached registers are going to be restored after power on with exception of
volatile registers. You need to restore the bits in a volatile registers in
the driver.

-- 
Péter


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