linux-kernel - [PATCH v3 2/2] dt-bindings: lantiq: Update for new SoC

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Date:   Wed, 21 Aug 2019 15:06:52 +0800
From:   Rahul Tanwar <rahul.tanwar@...ux.intel.com>
To:     robh+dt@...nel.org, devicetree@...r.kernel.org,
        gregkh@...uxfoundation.org, mark.rutland@....com,
        linux-serial@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, andriy.shevchenko@...el.com,
        qi-ming.wu@...el.com, cheol.yong.kim@...el.com,
        rahul.tanwar@...el.com, Rahul Tanwar <rahul.tanwar@...ux.intel.com>
Subject: [PATCH v3 2/2] dt-bindings: lantiq: Update for new SoC

Intel Lightning Mountain(LGM) reuses Lantiq ASC serial controller IP.
Update the dt bindings to support LGM as well.

Signed-off-by: Rahul Tanwar <rahul.tanwar@...ux.intel.com>
---
 .../devicetree/bindings/serial/lantiq,asc.yaml     | 35 ++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/lantiq,asc.yaml b/Documentation/devicetree/bindings/serial/lantiq,asc.yaml
index 72ea2a3d75c9..14241ef37e8a 100644
--- a/Documentation/devicetree/bindings/serial/lantiq,asc.yaml
+++ b/Documentation/devicetree/bindings/serial/lantiq,asc.yaml
@@ -15,12 +15,14 @@ allOf:
 properties:
   compatible:
     enum:
+      - intel,lgm-asc
       - lantiq,asc
 
   reg:
     maxItems: 1
 
   interrupts:
+    minItems: 1
     maxItems: 3
 
   clocks:
@@ -38,6 +40,29 @@ required:
   - reg
   - interrupts
 
+if:
+  properties:
+    compatible:
+      enum:
+        - intel,lgm-asc
+
+then:
+  properties:
+    interrupts:
+      minItems: 1
+      maxItems: 1
+      items:
+        - description: combined interrupt for tx, rx & err
+
+else:
+  properties:
+    interrupts:
+      minItems: 3
+      maxItems: 3
+      items:
+        - description: tx interrupt
+        - description: rx interrupt
+        - description: err interrupt
 
 examples:
   - |
@@ -52,4 +77,14 @@ examples:
             clock-names = "freq", "asc";
     };
 
+  - |
+    asc0: serial@...00000 {
+            compatible = "intel,lgm-asc";
+            reg = <0xe0a00000 0x1000>;
+            interrupt-parent = <&ioapic1>;
+            interrupts = <128 1>;
+            clocks = <&cgu0 LGM_CLK_NOC4>, <&cgu0 LGM_GCLK_ASC0>;
+            clock-names = "freq", "asc";
+    };
+
 ...
-- 
2.11.0