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Re: [PATCH v3 1/3] dt-bindings: mt8173: Fix mdp device tree

From	Rob Herring <robh@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH v3 1/3] dt-bindings: mt8173: Fix mdp device tree
Date	2017-05-15 22:50 +0200
Message-ID	<tHv6h-4wd-9@gated-at.bofh.it> (permalink)
References	<tG9rb-6Vk-3@gated-at.bofh.it> <tG9rb-6Vk-5@gated-at.bofh.it>
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On Fri, May 12, 2017 at 11:22:39AM +0800, Minghsiu Tsai wrote:
> If the mdp_* nodes are under an mdp sub-node, their corresponding
> platform device does not automatically get its iommu assigned properly.
> 
> Fix this by moving the mdp component nodes up a level such that they are
> siblings of mdp and all other SoC subsystems.  This also simplifies the
> device tree.
> 
> Although it fixes iommu assignment issue, it also break compatibility
> with old device tree. So, the patch in driver is needed to iterate over
> sibling mdp device nodes, not child ones, to keep driver work properly.
> 
> Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
> 
> ---
>  Documentation/devicetree/bindings/media/mediatek-mdp.txt | 12 +++---------
>  1 file changed, 3 insertions(+), 9 deletions(-)

Acked-by: Rob Herring <robh@kernel.org>

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[PATCH v3 1/3] dt-bindings: mt8173: Fix mdp device tree Minghsiu Tsai <minghsiu.tsai@mediatek.com> - 2017-05-12 05:30 +0200
  Re: [PATCH v3 1/3] dt-bindings: mt8173: Fix mdp device tree Rob Herring <robh@kernel.org> - 2017-05-15 22:50 +0200

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