Re: [PATCH 2/5] ARM: dts: imx6dl-colibri: Add Toradex Capacitive Touch Display 7" Parallel

[Francesco Dolcini]

Hello Frank,

On Mon, Oct 19, 2026 at 02:25:40PM -0500, Frank Li wrote:
> On Mon, Oct 19, 2026 at 01:18:31PM +0200, Antoine Gouby wrote:
> > [You don't often get email from antoine.gouby@xxxxxxxxx. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
> >
> > From: Antoine Gouby <antoine.gouby@xxxxxxxxxxx>
> >
> > Add a device tree overlay for the Capacitive Touch Display 7" Parallel
> > on the Colibri iMX6 parallel RGB LCD interface.
> >
> > The panel is a LogicTechno LT161010-2NHC 7" WVGA TFT Transmissive LCD
> > and the touch input is provided by an Atmel MaxTouch capacitive touch
> > controller.
> >
> > The touch controller is connected to the Toradex 10-way Capacitive Touch
> > Interface connector available on Iris v2 and Aster carrier boards.
> >
> > The touch interrupt and reset signals on SODIMM 107 and SODIMM 106 share
> > their pads with the WEIM nEXT_CS1 and nEXT_CS2 chip selects, disable
> > WEIM to avoid the pin conflict.
> >
> > The overlay is also combined with the Colibri iMX6 V1.2 Iris v2 and
> > Aster carrier board device trees to provide ready-to-use DTBs.
> >
> > Link: https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-7inch-parallel/
> > Signed-off-by: Antoine Gouby <antoine.gouby@xxxxxxxxxxx>
> > ---
> >  arch/arm/boot/dts/nxp/imx/Makefile                 | 11 +++++++
> >  ...6dl-colibri-panel-cap-touch-7inch-parallel.dtso | 38 ++++++++++++++++++++++
> 
> File name include key componets, lt161010
> 
> such as
> 
> imx6dl-colibri-7inch-lt161010.dtso, like others
> 
> 	imx93-tqma9352-mba93xxla-lvds-tm070jvhg33.dtso
> 
> In case you will add more 7" panel in future, panel is quite easily EOL.

Let's try to settle this topic.

What you are proposing is not ok, I have already provided a complete
and detailed explanation on this topic here, please have a look again:

 - https://lore.kernel.org/all/20261005075319.GA7692@francesco-nb/
 - https://lore.kernel.org/all/20261005075319.GA7692@francesco-nb/

In addition to that, I'd like to say that this is exactly the same as
the raspberry pi display, see

 arch/arm64/boot/dts/ti/k3-am625-verdin-rpi-display-2-7in.dtso
 arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk-rpi-display-2-5in.dtso
 arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk-rpi-display-2-7in.dtso
 arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk-rpi-display-2.dtsi


If you are concerned about this name being too generic and the risk of
name conflict or potential confusion my proposal is to add a `tdx`
prefix to the name.

The proposed name would be
`imx6dl-colibri-tdx-panel-cap-touch-7inch-parallel.dtso`. 

With such prefix we would have a clear Toradex "namespace" that would
prevent any kind of conflict and confusion.

Can we find a way forward on this, that allow both to have a correct
name and solve also your concerns? 

Francesco