On 2013-02-11 01:23, Grant Likely wrote: > On Tue, 29 Jan 2013 15:53:43 +0100, Andreas Larsson <[email protected]> > wrote: >> Holes in the cs-gpios DT phandle list is supposed to mark that native >> chipselects is to be used. The value returned from of_get_named_gpio_flags in >> this case is -EEXIST. By initializing cs_gpios and cs_gpio with -EEXIST, this >> and only this errno will indicate to a spi controller driver that a native >> chipselect is to be used. >> >> Signed-off-by: Andreas Larsson <[email protected]> > > I've left this one off for now. Take a look at the patch I posted and > let me know if you think this one should still be applied.
I think that of_spi_register_master should return an error when the cs-gpios property is broken (part of patch 2) and that cs_gpios and cs_gpio should be initialized to the same value as a hole in the plist. This patch does not work without 1 and 2, so I'll submit a modified patch once "of: Create function for counting number of phandles in a property" has stabilized. Would it have to go through the gpio branch then? Cheers, Andreas ------------------------------------------------------------------------------ Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb _______________________________________________ spi-devel-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/spi-devel-general
