Re: [PATCH v1 14/14] ARM: dts: imx6ull-uti260b: Add board

[Stefan Wahren]

> > > +&ecspi3 {
> > > +	cs-gpios = <&gpio1 20 GPIO_ACTIVE_LOW>;
> > > +	pinctrl-names = "default";
> > > +	pinctrl-0 = <&mux_spi3>, <&mux_spi3_cs>;
> > > +	status = "okay";
> > > +
> > > +	panel@0 {
> > > +		compatible = "inanbo,t28cp45tn89-v17";
> > > +		reg = <0>;
> > > +		backlight = <&panel_backlight>;
> > > +		power-supply = <&reg_vsd>;
> > > +		spi-cpha;
> > > +		spi-cpol;
> > > +		spi-max-frequency = <100000>;
> > This seems slow to me. Is this a limitation of the display?
> I just used something slow, which should definitely work. I will try
> to increase to 1MHz. Note, that the display is not driven via SPI.
> SPI is just used for the configuration.
Thanks for clarification. Yes, 1 MHz would be better.
> Thanks for the review,
>
> -- Sebastian