On Tue, Mar 09, 2021 at 01:05:27PM +0200, Andy Shevchenko wrote: > On Fri, Mar 5, 2021 at 9:05 PM Jonathan Cameron > <jonathan.came...@huawei.com> wrote: > > > > On Fri, 5 Mar 2021 14:38:13 +0100 > > Oleksij Rempel <o.rem...@pengutronix.de> wrote: > > > > > Basically the TI TSC2046 touchscreen controller is 8 channel ADC > > > optimized for > > > the touchscreen use case. By implementing it as IIO ADC device, we can > > > make use of resistive-adc-touch and iio-hwmon drivers. > > > > > > So far, this driver was tested with custom version of resistive-adc-touch > > > driver, > > > since it need to be extended to make use of Z1 and Z2 channels. The X/Y > > > are working without additional changes. > > > > > > Signed-off-by: Oleksij Rempel <o.rem...@pengutronix.de> > > > > Hi Oleksij, > > > > To consider this as a possible long term route instead of just making this > > a touchscreen driver, we'll want to see those mods to the > > resistive-adc-touch. > > Of course that doesn't stop review of this in the meantime. > > > > There are quite a few things in here that feel pretty specific to the > > touchscreen > > usecase. That makes me wonder if this is a sensible approach or not. > > I'm wondering if this has any similarities with existing drivers under > drivers/input/touchscreen.
Yes, for example: drivers/input/touchscreen/ads7846.c Regards, Oleksij -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
