hi Linus Thanks for the ping.. On 10:18 Thu 06 Feb , Linus Walleij wrote: > Hi Yixun, > > On Tue, Jan 28, 2025 at 5:03 PM Linus Walleij <linus.walleij@xxxxxxxxxx> wrote: > > On Tue, Jan 28, 2025 at 4:17 AM Yixun Lan <dlan@xxxxxxxxxx> wrote: > > > > > [Rob] > > > > If Linux can't handle 1 node for N gpio_chip's, then that's a Linux > > > > problem. Maybe it can, IDK. > > > > > > I haven't seen somthing like this to register 1 node for multi gpio_chips.. > > > To gpio/pinctrl maintainer (Linus Walleij), do you have suggestion on this? > > > > For Linux we can call bgpio_init() three times and > > devm_gpiochip_add_data() three times on the result and if we use the yes, even I've already done this in v4 > > approach with three cells (where the second is instance 0,1,2 and the > > last one the offset 0..31) then it will work all just the same I guess? > > agree, I just need to connect dots.. parse dts & adjust the driver code > > foo-gpios <&gpio 2 7 GPIO_ACTIVE_LOW>; > > > > for offset 7 on block 2 for example. > > > > We need a custom xlate function I suppose. > > > > It just has not been done that way before, everybody just did > > 2-cell GPIOs. > > does this approach work for you? I think it's the most diplomatic. > I like the approach which make sense > I'm sorry about the hopeless back-and-forth with the bindings, also > for contributing to the messy debate. I do want developers to feel > encouraged to contribute and not get stuck in too long debates. > no problem, thanks for the encouragement.. I planed to go for the implementation, and raise any actual problem I may find, but it turns out taking more time than I expected (some reason to due long chinese new year holiday..) > Yours, > Linus Walleij -- Yixun Lan (dlan) Gentoo Linux Developer GPG Key ID AABEFD55
