[PATCH v3 0/4] input: add GPIO-based charlieplex keypad

[Hugo Villeneuve]

Hi Geert,

On Thu, 26 Feb 2026 10:20:33 +0100
Geert Uytterhoeven <geert at linux-m68k.org> wrote:

> Hi Hugo,
> 
> Thanks for your series!
> 
> On Wed, 25 Feb 2026 at 16:54, Hugo Villeneuve <hugo at hugovil.com> wrote:
> > From: Hugo Villeneuve <hvilleneuve at dimonoff.com>
> >
> > Hello,
> > this patch series add a new GPIO charlieplex keypad driver.
> >
> > The first two patches simply commonize two properties that are present in
> > a few bindings, so that the actual patches for the charlieplex keypad driver
> > can reuse them instead of also redefining them.
> >
> > I have tested the driver on a custom board with a Solidrun RZ/G2LC SOM
> > with three charlieplex keyboards, all connected thru a single PCA9416 I2C GPIO
> 
> PCA9416? The closest I could find is TCA9416, which is something
> different.

Its a typo, it is PCA6416, thanks for catching that!

Hugo.


> 
> > expander.
> >
> > Link: [v1] https://lore.kernel.org/all/20260203155023.536103-1-hugo@hugovil.com/
> > Link: [v2] https://lore.kernel.org/all/20260213171431.2228814-1-hugo@hugovil.com/
> 
> Gr{oetje,eeting}s,
> 
>                         Geert
> 
> -- 
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds
> 


-- 
Hugo Villeneuve