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SubjectRe: [PATCH] ARM: dts: imx6qdl: Enable egalax touch screen
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Date
On Thu, 2019-12-12 at 17:25 +0100, Marco Felsch wrote:
> On 19-12-12 17:22, Sjoerd Simons wrote:
> > On Thu, 2019-12-12 at 17:07 +0100, Marco Felsch wrote:
> > > Hi Sjoerd,
> > >
> > > On 19-12-12 17:02, Sjoerd Simons wrote:
> > > > Sabrelite boards can have an lvds screen attached with a built-
> > > > in
> > > > i2c touch
> > > > screen. Enable this in the dtsi.
> > >
> > > Can this be any screen available on the market?
> >
> > I guess i should have been more clear here; This is the touchscreen
> > in
> > the hannstar display (already part of the dts) that was sold as an
> > accessoiry to the sabrelite.
>
> That is more clear =) Pls can you add this to the commit message?

Ofcourse will do; You also made me dig up the model number etc so i'll
include that information.

> > Same as the screen that can be used on the boundary nitrogen6
> > boards
> > (which do have the touch part already enabled in the dts)
> >
> > > > Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
> > > > ---
> > > >
> > > > arch/arm/boot/dts/imx6qdl-sabrelite.dtsi | 8 ++++++++
> > > > 1 file changed, 8 insertions(+)
> > > >
> > > > diff --git a/arch/arm/boot/dts/imx6qdl-sabrelite.dtsi
> > > > b/arch/arm/boot/dts/imx6qdl-sabrelite.dtsi
> > > > index 8468216dae9b..382b127b2251 100644
> > > > --- a/arch/arm/boot/dts/imx6qdl-sabrelite.dtsi
> > > > +++ b/arch/arm/boot/dts/imx6qdl-sabrelite.dtsi
> > > > @@ -416,6 +416,14 @@ &i2c3 {
> > > > pinctrl-names = "default";
> > > > pinctrl-0 = <&pinctrl_i2c3>;
> > > > status = "okay";
> > > > +
> > > > + touchscreen@4 {
> > > > + compatible = "eeti,egalax_ts";
> > > > + reg = <0x04>;
> > > > + interrupt-parent = <&gpio1>;
> > > > + interrupts = <9 IRQ_TYPE_EDGE_FALLING>;
> > > > + wakeup-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
> > >
> > > The wakeup-gpio and the irq-line are sharing the same gpio line?
>
> Lastly should we add a own pinctrl entry for the touchscreen?

Would probably make sense to do that indeed; Will have a look

Thanks for the review!

--
Sjoerd Simons
Collabora Ltd.

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