On Fri, Jun 17, 2016 at 11:51:03AM +0200, Neil Armstrong wrote: > In case of OF probing, the driver fails to initialize : > - gpio_chip.base must be -1 > - irq_summary must be either -1 or valid > - There is no way to use the other configurations > > Add OF parsing function to complete the HW configuration, make > OF configuration dynamic instead of static with #defines and > update the DT bindings. > > Signed-off-by: Neil Armstrong <[email protected]> > --- > .../devicetree/bindings/gpio/gpio-sx150x.txt | 17 ++++++ > drivers/gpio/gpio-sx150x.c | 65 > +++++++++++++++++++--- > 2 files changed, 75 insertions(+), 7 deletions(-) > > diff --git a/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt > b/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt > index c809acb..d2b5bb3 100644 > --- a/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt > +++ b/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt > @@ -22,6 +22,17 @@ Required properties: > > - interrupt-controller: Marks the device as a interrupt controller. > > +Optional Properties: > +- oscio-is-gpo: Boolean, Indicated the oscio pin can be used as additional > + output gpo port. > +
> +- pull-up-ports: Array of port numbers which must have pull-up enabled. > +- pull-down-ports: Array of port numbers which must have pull-down enabled. > +- open-drain-ports: Array of port numbers which must be configured as > open-drain, > + Push-Pull mode is default. > +- polarity-invert-ports: Array of port numbers whih port polarity must be > inverted. Seems like these should be done in a common way. If not, they all need a vendor prefix. > +- probe-reset: Boolean, Indicates the expander must be resetted.
