Re: [PATCH v2 0/3] powerpc: 512x: Convert ADS7845 touchscreen on PDM360NG to device tree
From: Dmitry Torokhov
Date: Wed Sep 09 2026 - 14:36:57 EST
On Sun, Jul 19, 2026 at 10:37:15PM -0700, Dmitry Torokhov wrote:
> The reason for this series is to remove support for platform data in the
> ads7846 touchscreen driver, as pdm360ng is the last user of legacy
> platform data in the kernel for this driver.
>
> This series converts the ADS7845 touchscreen on the PDM360NG board to use
> Device Tree bindings instead of legacy platform data callbacks:
>
> - Move GPIO controller capabilities into mpc5121.dtsi so all MPC5121
> boards inherit proper controller definitions, and remove redundant
> local declarations from ac14xx.dts
>
> - Update pdm360ng.dts to use "ti,ads7845" with pendown-gpio and
> interrupt-parent referencing gpio_pic
>
> - Add "ifm,pdm360ng" to mpc512x_generic.c and delete obsolete
> pdm360ng.c.
>
> This change has been discussed in '24 but I just got around to
> implementing this:
>
> https://lore.kernel.org/r/ZoNHLjmSvCN12vU5@xxxxxxxxxx/
>
> Note that this should compile but I have not tried this on real
> hardware.
Michael, Madhavan,
Can this be merged or maybe you want me to make some changes? I'd like
to finish cleaning up ads7846...
Thanks.
--
Dmitry