[PATCH] Revert "imx: make use of loader_open_render_node(..) helper"

[Emil Velikov]

On Mon, 29 Oct 2018 at 19:11, Christian Gmeiner
<christian.gmeiner at gmail.com> wrote:
>
> This reverts commit 773d6ea6e715d207bda3a53a9dfc8acf686035b0.
>
> Since kernel 4.17 (drm/etnaviv: remove the need for a gpu-subsystem DT
> node) the etnaviv DRM driver doesn't have an associated DT node
> anymore. This is technically correct, as the etnaviv device is a
> virtual device driving multiple hardware devices.
>
> Before 4.17 the userspace had access to the following information:
> DRIVER=etnaviv
> OF_NAME=gpu-subsystem
> OF_FULLNAME=/gpu-subsystem
> OF_COMPATIBLE_0=fsl,imx-gpu-subsystem
> OF_COMPATIBLE_N=1
> MODALIAS=of:Ngpu-subsystemT<NULL>Cfsl,imx-gpu-subsystem
> DRIVER=imx-drm
> OF_NAME=display-subsystem
> OF_FULLNAME=/display-subsystem
> OF_COMPATIBLE_0=fsl,imx-display-subsystem
> OF_COMPATIBLE_N=1
>
> Afer 4.17:
> DRIVER=etnaviv
> MODALIAS=platform:etnaviv
>
> The OF node has never been part of the etnaviv UABI, simply due to the
> fact that it's still possible to instantiate the etnaviv driver from a
> platform file, instead of a devicetree node.
>
> A patch set to fix this problem was send out [1] but it looks like
> that a proper solution needs more time to bake.
>
> [1] https://lists.freedesktop.org/archives/dri-devel/2018-October/194651.html
>
> Suggested-by: Emil Velikov <emil.l.velikov at gmail.com>
> Signed-off-by: Christian Gmeiner <christian.gmeiner at gmail.com>

Acked-by: Emil Velikov <emil.l.velikov at gmail.com>

-Emil