linux-kernel - Re: the dp helper would try to enable the i2c channel for rockchip-edp

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Date:   Thu, 20 Oct 2016 09:18:04 +0200
From:   Tomeu Vizoso <tomeu.vizoso@...labora.com>
To:     Randy Li <randy.li@...k-chips.com>
Cc:     "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
        Gustavo Padovan <gustavo.padovan@...labora.co.uk>
Subject: Re: the dp helper would try to enable the i2c channel for rockchip-edp

On 19 October 2016 at 15:52, Randy Li <randy.li@...k-chips.com> wrote:
> Hello,
>
>   Recently, I want to use a eDP panel in my RK3288 platform, but I got the
> following message:
>
> [    8.935918] i2c i2c-6: of_i2c: modalias failure on /dp@...70000/ports
> [    8.936018] rockchip-drm display-subsystem: bound ff970000.dp (ops
> rockchip_dp_component_ops [analogix_dp_rockchip])
> It try to enable the eDP aux channel and add a new I2C controller, but it
> failed then the whole display subsystem is broken, the panel doesn't power
> on either.
>
>   I hope somebody could figure out what is wrong with it.

Hi Randy,

you want to debug why the call to of_modalias_node fails.

Good luck,

Tomeu

>
> _______________________________________________
> dri-devel mailing list
> dri-devel@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

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