On Thu, May 6, 2021 at 6:38 PM Michael Walle <michael@xxxxxxxx> wrote: > > Am 2021-04-30 14:35, schrieb Robert Marko: > > Delta TN48M CPLD is used as a GPIO expander for the SFP GPIOs. > > > > It is a mix of input only and output only pins. > > > > Since there is no logical GPIO numbering arbitrary one is used > > along dt-bindings to make it humanly readable. > > Can gpio/gpio-regmap.c be used here? See gpio/gpio-sl28cpld.c > for an example. I suppose it can be used, I need to look into it more to see how could translation to register and mask be done with it. I have adapted the driver to work with simple I2C MFD so far. It still leaves me with a finding the logical way to number the GPIO-s. Robert > > -michael -- Robert Marko Staff Embedded Linux Engineer Sartura Ltd. Lendavska ulica 16a 10000 Zagreb, Croatia Email: robert.marko@xxxxxxxxxx Web: www.sartura.hr
