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From:   Fabio Estevam <festevam@gmail.com>
Date:   Sun, 10 Jan 2021 13:22:41 -0300
Message-ID: <CAOMZO5C_hDWeVrCh7k+3OiA0jhQfawhGWE6hxnnFn=wA+dkTGQ@mail.gmail.com>
Subject: Re: [PATCH v1] drm/panel: simple: add SGD GKTW70SDAD1SD
To:     Oliver Graute <oliver.graute@gmail.com>
Cc:     Thierry Reding <thierry.reding@gmail.com>,
        Sam Ravnborg <sam@ravnborg.org>,
        Marco Felsch <m.felsch@pengutronix.de>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        DRI mailing list <dri-devel@lists.freedesktop.org>,
        linux-kernel <linux-kernel@vger.kernel.org>
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Hi Oliver,

On Sun, Jan 10, 2021 at 12:35 PM Oliver Graute <oliver.graute@gmail.com> wrote:

> the first two errors are gone. But I still get this:
>
> [   42.387107] mxsfb 21c8000.lcdif: Cannot connect bridge: -517
>
> The panel is still off perhaps I miss something else.

Some suggestions:

- Take a look at arch/arm/boot/dts/imx6ul-14x14-evk.dtsi as a
reference as it has display functional
- Use imx_v6_v7_defconfig to make sure all the required drivers are selected
- If it still does not work, share the dts and schematics