dt-bindings: iommu/rockchip: Add clock property

Add clock property, since we are going to control clocks in rockchip iommu driver. Signed-off-by: Jeffy Chen <[email protected]> Reviewed-by: Robin Murphy <[email protected]> Reviewed-by: Rob Herring <[email protected]> Signed-off-by: Joerg Roedel <[email protected]>
jbg · Mar 29, 2018 · 8fa9eb3 · 8fa9eb3
1 parent f2e3a5f
commit 8fa9eb3
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt
@@ -14,6 +14,11 @@ Required properties:
                     "single-master" device, and needs no additional information
                     to associate with its master device.  See:
                     Documentation/devicetree/bindings/iommu/iommu.txt
+- clocks          : A list of clocks required for the IOMMU to be accessible by
+                    the host CPU.
+- clock-names     : Should contain the following:
+	"iface" - Main peripheral bus clock (PCLK/HCL) (required)
+	"aclk"  - AXI bus clock (required)
 
 Optional properties:
 - rockchip,disable-mmu-reset : Don't use the mmu reset operation.
@@ -27,5 +32,7 @@ Example:
 		reg = <0xff940300 0x100>;
 		interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "vopl_mmu";
+		clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>;
+		clock-names = "aclk", "iface";
 		#iommu-cells = <0>;
 	};