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.

Signed-off-by: Daniel Kurtz <djku...@chromium.org>
Signed-off-by: Minghsiu Tsai <minghsiu.t...@mediatek.com>

---
 Documentation/devicetree/bindings/media/mediatek-mdp.txt | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/Documentation/devicetree/bindings/media/mediatek-mdp.txt 
b/Documentation/devicetree/bindings/media/mediatek-mdp.txt
index 4182063..0d03e3a 100644
--- a/Documentation/devicetree/bindings/media/mediatek-mdp.txt
+++ b/Documentation/devicetree/bindings/media/mediatek-mdp.txt
@@ -2,7 +2,7 @@
 
 Media Data Path is used for scaling and color space conversion.
 
-Required properties (controller (parent) node):
+Required properties (controller node):
 - compatible: "mediatek,mt8173-mdp"
 - mediatek,vpu: the node of video processor unit, see
   Documentation/devicetree/bindings/media/mediatek-vpu.txt for details.
@@ -32,21 +32,16 @@ Required properties (DMA function blocks, child node):
   for details.
 
 Example:
-mdp {
-       compatible = "mediatek,mt8173-mdp";
-       #address-cells = <2>;
-       #size-cells = <2>;
-       ranges;
-       mediatek,vpu = <&vpu>;
-
        mdp_rdma0: rdma@14001000 {
                compatible = "mediatek,mt8173-mdp-rdma";
+                            "mediatek,mt8173-mdp";
                reg = <0 0x14001000 0 0x1000>;
                clocks = <&mmsys CLK_MM_MDP_RDMA0>,
                         <&mmsys CLK_MM_MUTEX_32K>;
                power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
                iommus = <&iommu M4U_PORT_MDP_RDMA0>;
                mediatek,larb = <&larb0>;
+               mediatek,vpu = <&vpu>;
        };
 
        mdp_rdma1: rdma@14002000 {
@@ -106,4 +101,3 @@ mdp {
                iommus = <&iommu M4U_PORT_MDP_WROT1>;
                mediatek,larb = <&larb4>;
        };
-};
-- 
1.9.1

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