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

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Date:   Wed, 19 Oct 2016 21:52:26 +0800
From:   Randy Li <randy.li@...k-chips.com>
To:     dri-devel@...ts.freedesktop.org
Cc:     airlied@...ux.ie, linux-kernel@...r.kernel.org,
        seanpaul@...omium.org, inki.dae@...sung.com,
        daniel.vetter@...ll.ch, architt@...eaurora.org,
        tomeu.vizoso@...labora.com, gustavo.padovan@...labora.co.uk,
        ville.syrjala@...ux.intel.com, linux-rockchip@...ts.infradead.org
Subject: the dp helper would try to enable the i2c channel for rockchip-edp

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.