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authorLowry Li (Arm Technology China) <Lowry.Li@arm.com>2019-06-06 11:53:10 +0200
committerLiviu Dudau <Liviu.Dudau@arm.com>2019-06-19 12:42:17 +0200
commit6af386db05635db7cc3fac4d1d38a83b953f7251 (patch)
tree7622c496e6f33749039ee3f81adf7efb9743c1a5 /Documentation/devicetree/bindings/display
parentdrm/komeda: Adds SMMU support (diff)
downloadlinux-6af386db05635db7cc3fac4d1d38a83b953f7251.tar.xz
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dt/bindings: drm/komeda: Adds SMMU support for D71 devicetree
Updates the device-tree doc about how to enable SMMU by devicetree. Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com> Reviewed-by: Liviu Dudau <liviu.dudau@arm.com> Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Diffstat (limited to 'Documentation/devicetree/bindings/display')
-rw-r--r--Documentation/devicetree/bindings/display/arm,komeda.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/arm,komeda.txt b/Documentation/devicetree/bindings/display/arm,komeda.txt
index 02b226532ebd..b12c0453a421 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>;