On Mon, May 02, 2016 at 01:51:47PM -0700, Ray Jui wrote: > Update the iProc GPIO binding document to add new compatible strings > "brcm,iproc-gpio-v2" and "brcm,iproc-gpio-v3" for the 2nd and 3rd > generation of the iProc GPIO controllers > > Signed-off-by: Ray Jui <[email protected]> > --- > Documentation/devicetree/bindings/pinctrl/brcm,iproc-gpio.txt | 11 > ++++++++++- > 1 file changed, 10 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,iproc-gpio.txt > b/Documentation/devicetree/bindings/pinctrl/brcm,iproc-gpio.txt > index e427792..3a56649 100644 > --- a/Documentation/devicetree/bindings/pinctrl/brcm,iproc-gpio.txt > +++ b/Documentation/devicetree/bindings/pinctrl/brcm,iproc-gpio.txt > @@ -4,7 +4,16 @@ Required properties: > > - compatible: > Must be "brcm,cygnus-ccm-gpio", "brcm,cygnus-asiu-gpio", > - "brcm,cygnus-crmu-gpio" or "brcm,iproc-gpio" > + or "brcm,cygnus-crmu-gpio" for Cygnus SoCs > + > + "brcm,iproc-gpio" for the first generation of the GPIO controller that > + supports full-featured pinctrl and GPIO functions used in iProc based > SoCs > + > + "brcm,iproc-gpio-v2" for the second generation of the GPIO controller > that > + has the drive strength pinctrl support disabled, e.g., in the iProc NSP > SoC > + > + "brcm,iproc-gpio-v3" for the third generation of the GPIO controller that > + has the general pinctrl support completely disabled
You can have these for driver matching, but you still need SoC specific compatible strings. Rob
