tree f1b47f8eb9e8d7c19f6e61e40a2835a9e8f3a045
parent 62571c29a8343839e85e741db6a489f30686697c
author Mark Brown <broonie@opensource.wolfsonmicro.com> 1233778178 +0100
committer Samuel Ortiz <samuel@sortiz.org> 1234857612 +0100

mfd: Improve diagnostics for WM8350 ID register probe

Check the return value of the device I/O functions when reading the
ID registers so we can provide a more useful diagnostic when we're
having trouble talking to the device.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>