[RFC PATCH v2 17/30] Documentation/devicetree: Add renesas,sh7751-irl-ext binding document.

Signed-off-by: Yoshinori Sato <[email protected]>
---
 .../renesas,sh7751-irl-ext.yaml               | 77 +++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/renesas,sh7751-irl-ext.yaml

diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,sh7751-irl-ext.yaml b/Documentation/devicetree/bindings/interrupt-controller/renesas,sh7751-irl-ext.yaml
new file mode 100644
index 000000000000..dfc35717b92a
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,sh7751-irl-ext.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/renesas,sh7751-irl-ext.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas SH7751 IRL external encoder with enable regs.
+
+maintainers:
+  - Yoshinori Sato <[email protected]>
+
+description: |
+  This is the general used external interrupt encoder on SH7751 based boards.
+
+properties:
+  compatible:
+    items:
+      - const: renesas,sh7751-irl-ext
+
+  '#interrupt-cells':
+    # an interrupt index and flags, as defined in interrupts.txt in
+    # this directory
+    const: 2
+
+  interrupt-controller: true
+
+  reg:
+    minItems: 1
+
+  sh7751irl,width:
+    description: Enable register width
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  sh7751irl,polarity:
+    description: Enable register polarity
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  sh7751irl,irqbit:
+    description: IRQ to enable register bit mapping
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+
+required:
+  - compatible
+  - '#interrupt-cells'
+  - interrupt-controller
+  - reg
+  - sh7751irl,width
+  - sh7751irl,polarity
+  - sh7751,irqbit
+
+additionalProperties: false
+
+examples:
+  - |
+        r2dintc: sh7751irl_encoder@a4000000 {
+                compatible = "renesas,sh7751-irl-ext";
+                reg = <0xa4000000 0x02>;
+                interrupt-controller;
+                #address-cells = <1>;
+                #interrupt-cells = <2>;
+                sh7751irl,width = <16>;
+                sh7751irl,polarity = <0>;
+                sh7751irl,irqbit =<11>,         /* PCI INTD */
+                                  <9>,          /* CF IDE */
+                                  <8>,          /* CF CD */
+                                  <12>,         /* PCI INTC */
+                                  <10>,         /* SM501 */
+                                  <6>,          /* KEY */
+                                  <5>,          /* RTC ALARM */
+                                  <4>,          /* RTC T */
+                                  <7>,          /* SDCARD */
+                                  <14>,         /* PCI INTA */
+                                  <13>,         /* PCI INTB */
+                                  <0>,          /* EXT */
+                                  <15>;         /* TP */
+        };
-- 
2.39.2