Re: [PATCH v1] drm/panel: simple: add SGD GKTW70SDAD1SD

[Fabio Estevam]

On Sun, Jan 10, 2021 at 5:09 PM Oliver Graute <oliver.graute@xxxxxxxxx> wrote:

> here the schematics and my dts. The board is using a LVDS connector for
> the display.

The schematics shows the GKTW70SDAD1SD panel in the J4 connector, not
the LVDS J7 connector.

> https://www.variscite.de/wp-content/uploads/2017/12/VAR-6ULCustomboard-Schematics.pdf
> https://lore.kernel.org/linux-arm-kernel/1610144511-19018-3-git-send-email-oliver.graute@xxxxxxxxx/

As I mentioned earlier you should remove the display timings from the
dts when using the compatible string for the panel.

power-supply = <&reg_touch_3v3> is not correct, as the reg_touch_3v3
does not power the LCD.

Another hint is to use the PLL5_VIDEO as the clock source for the
lcdif controller as done in the imx6ul evk dtsi.

It would also help if you could share the complete boot log.