On Tue, Jul 07, 2015 at 09:06:25AM +0200, Christian Hartmann wrote:
2015-06-30 12:34 GMT+02:00 Charles Keepax ckeepax@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@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.
Still chasing them up on this.
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 think in this case we need to hard code the pdata into the driver. Probably in arizona-core.c would be the best place.
I have some more questions that I want to ask/discuss later on irc - if its possible
Yeah I shall jump on and you can give me a shout.
Thanks, Charles