On Fri, Jan 25, 2019 at 02:11:42PM +0100, Thierry Reding wrote:
> From: Thierry Reding <treding@xxxxxxxxxx>
>
> If an I2C adapter doesn't match the provided device tree node, also try
> matching the parent's device tree node. This allows finding an adapter
> based on the device node of the parent device that was used to register
> it.
>
> This fixes a regression on Tegra124-based Chromebooks (Nyan) where the
> eDP controller registers an I2C adapter that is used to read to EDID.
> After commit 993a815dcbb2 ("dt-bindings: panel: Add missing .txt
> suffix") this stopped working because the I2C adapter could no longer
> be found. The approach in this patch fixes the regression without
> introducing the issues that the above commit solved.
>
> Fixes: 17ab7806de0c ("drm: don't link DP aux i2c adapter to the hardware device node")
> Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
Removed the duplicated Tested-by and applied to for-next, thanks!
I applied to -next because I want this core change more regression
testing in next. If this goes good, I will do a cleanup series to not
use the of_node of the parent twice.
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