BUG, i.MX: broken LVDS display

Sascha Hauer s.hauer at pengutronix.de
Wed Sep 23 04:49:54 PDT 2015


On Tue, Sep 22, 2015 at 04:02:15PM +0200, Holger Schurig wrote:
>    Hi Sascha,
> 
>    imx-ipuv3 2400000.ipu: IPUv3H probed
>    imx-ipuv3 2800000.ipu: IPUv3H probed
>    Console activated
>    ...
>    imx-ipuv3-crtc imx-ipuv3-crtc0: register vpl for /soc/ipu at 02400000
>    imx-ipuv3-crtc imx-ipuv3-crtc0: probe failed: No such file or directory
>    imx-ipuv3-crtc imx-ipuv3-crtc1: register vpl for /soc/ipu at 02400000
>    imx-ipuv3-crtc imx-ipuv3-crtc1: probe failed: No such file or directory
>    imx-ipuv3-crtc imx-ipuv3-crtc2: register vpl for /soc/ipu at 02800000
>    imx-ipuv3-crtc imx-ipuv3-crtc2: probe failed: No such file or directory
>    imx-ipuv3-crtc imx-ipuv3-crtc3: register vpl for /soc/ipu at 02800000
>    imx-ipuv3-crtc imx-ipuv3-crtc3: probe failed: No such file or directory
>    running /env/bin/init...
> 
>    So I wonder where exactly barebox get's the timings on the GUF Vincell for
>    the Ampire display?   Probably the GuF board only sets up the display for
>    Linux, but doesn't in itself activate the framebuffer?  I grepped for
>    "Ampire" in Barebox git, and none of the files
>    (dts/Bindings/panel/ampire,am800480r3tmqwa1h.txt,

It seems the Vincell never worked in barebox. I just assumed it worked
because the barebox specific dts enables the ldb.
Please test the new version I just sent out. I tested this on the GuF
Santaro board, so this is a better place to compare the device tree
with.

Sascha

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