On 08/25/2013 01:44 PM, Fabian Vogt wrote: > Hi, > >> On 08/07/2013 06:53 AM, Fabian Vogt wrote: >>> This driver supports the GPIO controller found in LSI ZEVIO SoCs. >>> It has been successfully tested on a TI nspire CX calculator. >> >>> diff --git a/Documentation/devicetree/bindings/gpio/gpio-zevio.txt >>> b/Documentation/devicetree/bindings/gpio/gpio-zevio.txt >> >>> +Zevio GPIO controller >>> + >>> +Required properties: >>> +- compatible = "lsi,zevio-gpio" >> >> Is there only one zevio chip, or a series? Is "zevio" the full name of >> the chip, including any version number? > > We don't know, it's a relableled chip with > TI-NSPIRE / L9A0702 / TI-NS2006A-0 / LSI LOGIC / ZEVIO / U 0714 / > WYJ14052-1 > on it. But this driver should match the other drivers (lsi,zevio-intc, > lsi,zevio-timer). OK, I guess that's fine then. I suppose if we find "zevio2" chips, we can always use that for the compatible value later. >>> +- reg = <BASEADDR SIZE> >>> +- #gpio-cells = <2> >>> +- gpio-controller; >>> + >>> +Optional: >>> +- #ngpios = <32>: Number of GPIOs. Defaults to 32 if absent >> >> Perhaps one can derive that from the compatible value? The fact this >> property exists implies there's more than one zevio chip, so perhaps >> each should have an explicit compatible value described above? > > I added it just for someone who maybe needs it. It's only two lines and > maybe > it'll be helpful for someone. We don't know whether some similiar or > this controller > exist in different configurations (pin count, section sice, register > layout). > Also I hate hardcoded values which require a recompile to change.. If there's no reason for this property, I think we should remove it. -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
