On Mon, Apr 26, 2021 at 10:44 AM Rodolfo Giometti <giometti@xxxxxxxxxxxx> wrote: > > On 20/07/20 10:17, Linus Walleij wrote: > > IIUC Rodolfo's idea is to provide this with a DT compatible. > > The use case will be industrial automation-ish tasks from userspace. > > > > Currently the only mechanism we have in the device tree to > > assign a use for a line is the "gpio-line-names" property, > > which creates a name that is reported upward to the character > > device. > > > > Rodolfo's patch is for scripting use cases, assigning some lines > > for some cases to be handled by scripts, not the character device. > > > > What I am a bit worried about is if this would be a Linuxism, as DT > > should be OS neutral. > > Hello Linus, > > I'm currently using my solution for GPIOs management as input or output lines > described in the DT on several systems. > > Are you re-thinking about this topic? Can we go further for inclusion or should > I continue doing out-of-tree? :( It is a system description question, and I think you will need to discuss it on the devicetree@xxxxxxxxxxxxxxx mailing list. The people there are working with things like the system device tree which is intended to describe aspects of a system apart from what Linux or any operating system is doing with the hardware. I would send an RFC of the proposed DT bindings there. They have been Cced in the past but not addressed directly. Yours, Linus Walleij
