# Re: \[PATCH\] dt-bindings: input: touchscreen: ilitek\_ts\_i2c: Absorb ili2xxx bindings

- From: Geert Uytterhoeven \<geert@linux-m68k.org\>
- Date: 2021-06-11 18:23:39 
- List: linux-devicetree
- Page: https://ratatoskr.run/linux-devicetree/2021/06/8192010
- Thread: https://ratatoskr.run/linux-input/2021/06/8191992/t.md

```text
Hi Marek,

On Fri, Jun 11, 2021 at 4:20 PM Marek Vasut [ref] wrote:
> On 6/11/21 3:54 PM, Geert Uytterhoeven wrote:
> > While Linux uses a different driver, the Ilitek
> > ILI210x/ILI2117/ILI2120/ILI251x touchscreen controller Device Tree
> > binding documentation is very similar.
> >
> >    - Drop the fixed reg value, as some controllers use a different
> >      address,
> >    - Make reset-gpios optional, as it is not always wired.
>
> It looks like there are now two drivers for the same hardware,
> drivers/input/touchscreen/ili210x.c
> drivers/input/touchscreen/ilitek_ts_i2c.c
> The ilitek_ts_i2c (newer) seems to be derived from the ilitek example
> code / driver, while the ili210x was written from scratch as far as I
> can tell.

I'm not so sure they're for the same hardware, but you may know better?
https://www.displayvisions.us/fileadmin/html-seiten/eng/pdf/zubehoer/ILITek_TP_Programming_Guide_V1.50.pdf
lists only Ilitek parts handled by ilitek_ts_i2c.c.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@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
```