From mboxrd@z Thu Jan 1 00:00:00 1970 From: Charles Keepax Subject: Re: [alsa-devel] Fwd: [PATCH 1/1] SPI : spi-pxa2xx : fix spi init of WM510205 codec via ACPI (resend) Date: Mon, 28 Sep 2015 10:08:52 +0100 Message-ID: <20150928090852.GF5432@ck-lbox> References: <20150827115914.GF28428@lahna.fi.intel.com> <20150827145614.GC5313@sirena.org.uk> <20150902081334.GB15505@ck-lbox> <20150904143434.GA1514@edi-sw-dsktp001.ad.cirrus.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: , Mika Westerberg , Pierre-Louis Bossart , Haojian Zhuang , , Mark Brown , , Daniel Mack , Robert Jarzmik , To: Christian Hartmann Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-spi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: On Mon, Sep 07, 2015 at 09:58:22AM +0200, Christian Hartmann wrote: > Hello, > > 2015-09-04 16:34 GMT+02:00 Charles Keepax : > > Not entirely unexpected I guess, but certainly my gut feel here > > is that this is a problem with the chip selects. I guess really > > trying to find any available documentation on the AP/SPI and > what do you mean with AP ? > > I have googled and found some technical datasheets and > developer documentation about the marvell pxa27 under this link/webpage > http://www.marvell.com/application-processors/pxa-family/ > > I also asked lenovo about datasheets (not the short brief productsheet) to get > facts about it. But again, I do not think that lenovo will ever > support me in this case. > if I got some datasheets and if its not against laws etc I will report it here. > > > tearing apart the SPI driver are the next steps from here. But > > afraid I don't really have any great ideas for diving much > > deeper. I will try to chase the Windows guys here again and see > That would be nice, hope they got some glues. > > > if I can gain any clues from them but I don't really know at what > > level these things are abstracted in Windows and thus if they can > > really help us much. Ok no major hints from them, they do have a 10 inch version of the same tablet lying around though so I will get them to post that up and have a look see if I can figure anything out. If you had anywhere I can pull in what you have done already that would be handy. Thanks, Charles -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html