[PATCH 1/2] dt-bindings: hwlock: Update OMAP HwSpinlock binding for AM64x SoCs

[Suman Anna]

Update the existing OMAP HwSpinlock binding to include the info for
AM64x SoCs. There are some minor IP integration differences between
the AM64x SoCs and the previous AM65x and J721E SoC families. A new
example is also added showcasing the difference in the IP's presence
on the interconnect.

Signed-off-by: Suman Anna <s-anna at ti.com>
---
 .../bindings/hwlock/ti,omap-hwspinlock.yaml   | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/Documentation/devicetree/bindings/hwlock/ti,omap-hwspinlock.yaml b/Documentation/devicetree/bindings/hwlock/ti,omap-hwspinlock.yaml
index ac35491a6f65..ac146c0d628f 100644
--- a/Documentation/devicetree/bindings/hwlock/ti,omap-hwspinlock.yaml
+++ b/Documentation/devicetree/bindings/hwlock/ti,omap-hwspinlock.yaml
@@ -14,6 +14,7 @@ properties:
     enum:
       - ti,omap4-hwspinlock  # for OMAP44xx, OMAP54xx, AM33xx, AM43xx, DRA7xx SoCs
       - ti,am654-hwspinlock  # for K3 AM65x, J721E and J7200 SoCs
+      - ti,am64-hwspinlock   # for K3 AM64x SoCs
 
   reg:
     maxItems: 1
@@ -74,3 +75,28 @@ examples:
             };
         };
     };
+
+  - |
+    / {
+        /* K3 AM64x SoCs */
+        model = "Texas Instruments K3 AM642 SoC";
+        compatible = "ti,am642-evm", "ti,am642";
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        bus at f4000 {
+            compatible = "simple-bus";
+            #address-cells = <2>;
+            #size-cells = <2>;
+            ranges = <0x00 0x000f4000 0x00 0x000f4000 0x00 0x000002d0>, /* PINCTRL */
+                     <0x00 0x01000000 0x00 0x01000000 0x00 0x02330400>, /* First peripheral window */
+                     <0x00 0x0f000000 0x00 0x0f000000 0x00 0x00c44200>, /* Second peripheral window */
+                     <0x00 0x20000000 0x00 0x20000000 0x00 0x0a008000>; /* Third peripheral window */
+
+            spinlock at 2a000000 {
+                compatible = "ti,am64-hwspinlock";
+                reg = <0x00 0x2a000000 0x00 0x1000>;
+                #hwlock-cells = <1>;
+            };
+        };
+    };
-- 
2.29.2