imx-drm: regression due to commit 503fe87bd0a8 ("gpu: ipu-v3: Fix imx-ipuv3-crtc module autoloading")

Marcel Ziswiler marcel.ziswiler at toradex.com
Tue May 17 07:27:00 PDT 2016


Hi there

On Fri, 2016-05-13 at 12:33 +0200, Lothar Waßmann wrote:
> Hi,
> 
> the commit 503fe87bd0a8 ("gpu: ipu-v3: Fix imx-ipuv3-crtc module
> autoloading")
> indeed fixes the autoloading issue, but completely breaks the driver
> in
> non-modular mode (at least with the parallel-display driver I didn't
> yet check with the imx-ldb driver.
> Can anyone confirm that the imx-drm driver in current linux-next
> (next-20160512) works for them with any i.MX6 or i.MX53 board?

I can confirm that this is actually broken both in v4.6 and next-
20160517. Reverting commit 407c9eba7897 ("drm/imx: Remove of_node
assignment from ipuv3-crtc driver probe") in both cases makes regular
imx_v6_v7_defconfig work again.

> I'm always very suspicious when seeing code moving of_node's from
> one device to another or assigning of_node's to platform devices that
> weren't instantiated via DT.
> 
> 
> Lothar Waßmann

Cheers

Marcel

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