Thread (12 messages) 12 messages, 2 authors, 2021-01-18
STALE1975d
Revisions (3)
  1. v3 [diff vs current]
  2. v4 current
  3. v5 [diff vs current]

[PATCH v4 4/6] dt-bindings: i3c: Describe Silvaco master binding

From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: 2021-01-14 18:02:15
Also in: linux-i3c
Subsystem: i3c subsystem, open firmware and flattened device tree bindings, silvaco i3c dual-role master, the rest · Maintainers: Alexandre Belloni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Miquel Raynal, Frank Li, Linus Torvalds

Silvaco provide a dual-role I3C master.

Description is rather simple: it needs a register mapping, three
clocks and an interrupt.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 .../bindings/i3c/silvaco,i3c-master.yaml      | 60 +++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i3c/silvaco,i3c-master.yaml
diff --git a/Documentation/devicetree/bindings/i3c/silvaco,i3c-master.yaml b/Documentation/devicetree/bindings/i3c/silvaco,i3c-master.yaml
new file mode 100644
index 000000000000..adb5165505aa
--- /dev/null
+++ b/Documentation/devicetree/bindings/i3c/silvaco,i3c-master.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i3c/silvaco,i3c-master.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Silvaco I3C master
+
+maintainers:
+  - Conor Culhane <conor.culhane@silvaco.com>
+
+allOf:
+  - $ref: "i3c.yaml#"
+
+properties:
+  compatible:
+    const: silvaco,i3c-master-v1
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: system clock
+      - description: bus clock
+      - description: other (slower) events clock
+
+  clock-names:
+    items:
+      - const: pclk
+      - const: fast_clk
+      - const: slow_clk
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clock-names
+  - clocks
+
+additionalProperties: true
+
+examples:
+  - |
+    i3c-master@a0000000 {
+        compatible = "silvaco,i3c-master";
+        clocks = <&zynqmp_clk 71>, <&fclk>, <&sclk>;
+        clock-names = "pclk", "fast_clk", "slow_clk";
+        interrupt-parent = <&gic>;
+        interrupts = <0 89 4>;
+        reg = <0xa0000000 0x1000>;
+        #address-cells = <3>;
+        #size-cells = <0>;
+    };
-- 
2.20.1
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