On Mon, Jun 12, 2017 at 12:17 PM, Mani, Rajmohan <rajmohan.mani@xxxxxxxxx> wrote: >> Subject: Re: [PATCH v1 2/3] gpio: Add support for TPS68470 GPIOs >> On Sun, Jun 11, 2017 at 7:50 PM, Sakari Ailus <sakari.ailus@xxxxxx> wrote: >> > On Sun, Jun 11, 2017 at 04:40:16PM +0300, Andy Shevchenko wrote: >> >> On Sun, Jun 11, 2017 at 2:30 PM, Sakari Ailus <sakari.ailus@xxxxxx> wrote: >> >> > Again, I'm not really worried about this driver, but the ACPI >> >> > tables. How does the difference show there? >> >> >> >> Same way. You will have common numbering over the chip [0, 9]. It >> >> will be just an abstraction inside the driver. >> > Sounds fine to me, taken that this does not add complications to ACPI >> > tables. >> >> They just need to share the same ACPI_HANDLE (it might require to do this in >> generic way in gpiolib) and have a continuous numbering (easy to achieve with >> carefully chosen bases). > Few clarifications... > > Are you implying new kernel changes are needed in gpiolib to accommodate 2 GPIO chips? Might be needed. It should be investigated first. In any case it would be somelike oneliner. > Does it need changes in platform firmware or is it expected to work just with the gpiolib changes that you described above? No firmware changes are implied. -- With Best Regards, Andy Shevchenko -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
