[PATCH 1/3] Docs: dt: arm-smmu: Add optional clock parameter

[thor.thayer@linux.intel.com (thor.thayer at linux.intel.com)]

From: Thor Thayer <thor.thayer@linux.intel.com>

Add a clock to the SMMU node bindings.

Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
---
 Documentation/devicetree/bindings/iommu/arm,smmu.txt | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.txt b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
index 8a6ffce12af5..356fd9f41e1b 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.txt
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
@@ -71,6 +71,8 @@ conditions.
                   or using stream matching with #iommu-cells = <2>, and
                   may be ignored if present in such cases.
 
+- clock:          clock provider specifier
+
 ** Deprecated properties:
 
 - mmu-masters (deprecated in favour of the generic "iommus" binding) :
@@ -137,3 +139,17 @@ conditions.
                 iommu-map = <0 &smmu3 0 0x400>;
                 ...
         };
+
+        /* ARM MMU-500 with clock node */
+        smmu4: iommu {
+                compatible = "arm,mmu-500", "arm,smmu-v2";
+                clocks = <&clkmgr STRATIX10_L4_MAIN_CLK>;
+                ...
+                #iommu-cells = <1>;
+        };
+
+        /* device with stream ID 1 */
+        master4 {
+                iommus = <&smmu4 1>;
+        };
+
-- 
2.7.4