Updates the device-tree doc about how to enable SMMU by devicetree.
Signed-off-by: Lowry Li (Arm Technology China) <lowry...@arm.com>
Reviewed-by: Liviu Dudau <liviu.du...@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.w...@arm.com>
---
Documentation/devicetree/bindings/display/arm,komeda.txt | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/arm,komeda.txt
b/Documentation/devicetree/bindings/display/arm,komeda.txt
index 02b2265..b12c045 100644
--- a/Documentation/devicetree/bindings/display/arm,komeda.txt
+++ b/Documentation/devicetree/bindings/display/arm,komeda.txt
@@ -11,6 +11,10 @@ Required properties:
- "pclk": for the APB interface clock
- #address-cells: Must be 1
- #size-cells: Must be 0
+- iommus: configure the stream id to IOMMU, Must be configured if want to
+ enable iommu in display. for how to configure this node please reference
+ devicetree/bindings/iommu/arm,smmu-v3.txt,
+ devicetree/bindings/iommu/iommu.txt
Required properties for sub-node: pipeline@nq
Each device contains one or two pipeline sub-nodes (at least one), each
@@ -44,6 +48,9 @@ Example:
interrupts = <0 168 4>;
clocks = <&dpu_mclk>, <&dpu_aclk>;
clock-names = "mclk", "pclk";
+ iommus = <&smmu 0>, <&smmu 1>, <&smmu 2>, <&smmu 3>,
+ <&smmu 4>, <&smmu 5>, <&smmu 6>, <&smmu 7>,
+ <&smmu 8>, <&smmu 9>;
dp0_pipe0: pipeline@0 {
clocks = <&fpgaosc2>, <&dpu_aclk>;
--
1.9.1
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