* Linus Walleij [off-list ref] [150317 18:31]:

On Tue, Mar 10, 2015 at 7:33 PM, Nishanth Menon [off-list ref] wrote:

quoted

On 03/10/2015 12:31 PM, Tony Lindgren wrote:

quoted

quoted

Yes except I'd make use of some kind of #pinctrl-cells here just like
interrupt controller has #interrupt-cells. Then you can have the values
seprate and the controller knows what to do with them based on the
compatible flag and #pinctrl-cells.

Something like the following I suppose, where pinctrl-cells is optional?

dra7_pmx_core: pinmux at 4a003400 {
        compatible = "ti,dra7-padconf", "pinctrl-single";
        reg = <0x4a003400 0x0464>;
        #address-cells = <1>;
        #size-cells = <0>;
        #interrupt-cells = <1>;
        interrupt-controller;
        pinctrl-single,register-width = <32>;
        pinctrl-single,function-mask = <0x3fffffff>;
};

dra7_iodelay_core: padconf at 4844a000 {
        compatible = "ti,dra7-iodelay";
        reg = <0x4844a000 0x0d1c>;
        #address-cells = <1>;
        #size-cells = <0>;
        #pinctrl-cells = <2>;
};

Linus,

I hope you are ok with the above?

Hm depends on where the documentation hits I guess?

Such a generic cell count property has to be to the generic
pinctrl-bindings.txt document if I read it right.

Yeah agreed. I suggest discussing the binding and the generic
parsing code for it first :)
 

Overall I guess this will be acceptable but you really need to
reuse some more code between this driver and pinctrl-single.c
if I read it right.

It seems with the generic binding the actual driver should be
just the hardware specific code hopefully.

Regards,

Tony