Hi Geert, Maerek, On Fri, Jun 11, 2021 at 08:23:10PM +0200, Geert Uytterhoeven wrote: > Hi Marek, > > On Fri, Jun 11, 2021 at 4:20 PM Marek Vasut <marex@xxxxxxx> 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. Ilitek folks said that the new driver is for their "Lego" series controllers, whereas ili210x.c is for older hardware. Thanks. -- Dmitry
