On 06/03/18 03:21, Jeffy Chen wrote:
Add clock property, since we are going to control clocks in rockchip
iommu driver.

Reviewed-by: Robin Murphy <robin.mur...@arm.com>

Signed-off-by: Jeffy Chen <jeffy.c...@rock-chips.com>
Reviewed-by: Rob Herring <r...@kernel.org>

Changes in v7: None
Changes in v6:
Fix dt-binding as Robin suggested.
Use aclk and iface clk as Rob and Robin suggested, and split binding

Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

  Documentation/devicetree/bindings/iommu/rockchip,iommu.txt | 7 +++++++
  1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt 
index 2098f7732264..6ecefea1c6f9 100644
--- 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 
                      to associate with its master device.  See:
+- 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>;

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