• Anton Vorontsov's avatar
    of/gpio: add default of_xlate function if device has a node pointer · 391c970c
    Anton Vorontsov authored
    Implement generic OF gpio hooks and thus make device-enabled GPIO chips
    (i.e.  the ones that have gpio_chip->dev specified) automatically attach
    to the OpenFirmware subsystem.  Which means that now we can handle I2C and
    SPI GPIO chips almost* transparently.
    
    * "Almost" because some chips still require platform data, and for these
      chips OF-glue is still needed, though with this change the glue will
      be much smaller.
    Signed-off-by: default avatarAnton Vorontsov <avorontsov@ru.mvista.com>
    Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
    Cc: David Brownell <dbrownell@users.sourceforge.net>
    Cc: Bill Gatliff <bgat@billgatliff.com>
    Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Jean Delvare <khali@linux-fr.org>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    CC: linux-kernel@vger.kernel.org
    CC: devicetree-discuss@lists.ozlabs.org
    391c970c
cpm1.c 18.6 KB