[alsa-devel] Fwd: [PATCH 1/1] SPI : spi-pxa2xx : fix spi init of WM510205 codec via ACPI (resend)

[Christian Hartmann]

2015-06-30 12:34 GMT+02:00 Charles Keepax <ckeepax at opensource.wolfsonmicro.com>:
> On Tue, Jun 30, 2015 at 09:14:37AM +0200, Christian Hartmann wrote:
>> Hi,
>>
>>
>> 2015-06-29 11:48 GMT+02:00 Mark Brown <broonie at kernel.org>:
>> > On Mon, Jun 29, 2015 at 09:27:17AM +0200, Christian Hartmann wrote:
>> >> [    5.927801] spi-WM510205:00 supply DCVDD not found, using dummy regulator
>> >> [    5.928958] arizona spi-WM510205:00: Unknown device ID: ffff
>> >> [    5.929098] pxa2xx-spi 80860F0E:00: registered child spi-WM510205:00
>> >
>> > The above is saying that SPI I/O to the device isn't working - the
>> > device ID is not being read back successfully.
>>
>> Ok that is the next problem that must be solved.
>> I have yesterday made a patchset where I have added
>> the enum type 5, but as you said already,
>> that was not needed.
>> All what I see the same: : Unknown device ID: ffff
>>
>> So where I have to look now or what can I do to let this device id
>> register correctly?
>> I hope the baytrail machine driver is easy peasy to add, but here I
>> stuck at the moment.
>
> As I said in my other emails the next step is to work out what
> the reset and ldoena gpio's are. You won't be able to read the
> device ID until you have those setup. Unfortunately, finding the
> right GPIOs is likely to be a bit of a chore, I will see if I can
> find anything out from the Windows guys at this end.
>
> Also can you check that the arizona-ldo1 regulator is built in I
> am surprised that is falling back to the dummy regulator.
>
> Thanks,
> Charles

Hi,

I just want to ask, if the windows guys have such infos about the
gpios in question (reset,ldoena) and of course the irq details.

I am thinking actually to get a second device with Win installed, so
that I can get more infos which I really need here.
Anyway  I can also provide more infos here (if its not against valid laws :) )
But indeeed I can need some hints where to put the pdata structure.

I have some more questions that I want to ask/discuss later on irc -
if its possible

cheers
Chris