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[v8,2/4] dt-bindings: iommu: rockchip: Add compatible for v2

Message ID 20210604164441.798362-3-benjamin.gaignard@collabora.com
State Accepted
Commit 9e6f3cd589cb711b5949cfbeb84e5440906195bd
Headers show
Series Add IOMMU driver for rk356x | expand

Commit Message

Benjamin Gaignard June 4, 2021, 4:44 p.m. UTC 
Add compatible for the second version of IOMMU hardware block.
RK356x IOMMU can also be link to a power domain.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
---
 .../devicetree/bindings/iommu/rockchip,iommu.yaml          | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
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Patch

diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml
index 099fc2578b54..d2e28a9e3545 100644
--- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml
@@ -19,7 +19,9 @@  description: |+
 
 properties:
   compatible:
-    const: rockchip,iommu
+    enum:
+      - rockchip,iommu
+      - rockchip,rk3568-iommu
 
   reg:
     items:
@@ -48,6 +50,9 @@  properties:
   "#iommu-cells":
     const: 0
 
+  power-domains:
+    maxItems: 1
+
   rockchip,disable-mmu-reset:
     $ref: /schemas/types.yaml#/definitions/flag
     description: |