linux-kernel - [PATCH v3 2/2] dt-bindings: interrupt-controller: Add MStar interrupt controller

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Message-ID: <20200902063344.1852-3-mark-pk.tsai@mediatek.com>
Date:   Wed, 2 Sep 2020 14:33:44 +0800
From:   Mark-PK Tsai <mark-pk.tsai@...iatek.com>
To:     <maz@...nel.org>, <robh+dt@...nel.org>
CC:     <mark-pk.tsai@...iatek.com>, <alix.wu@...iatek.com>,
        <daniel@...f.com>, <devicetree@...r.kernel.org>,
        <jason@...edaemon.net>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <matthias.bgg@...il.com>,
        <tglx@...utronix.de>, <yj.chiang@...iatek.com>
Subject: [PATCH v3 2/2] dt-bindings: interrupt-controller: Add MStar interrupt controller

Add binding for MStar interrupt controller.

Signed-off-by: Mark-PK Tsai <mark-pk.tsai@...iatek.com>
---
 .../interrupt-controller/mstar,mst-intc.yaml  | 64 +++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/mstar,mst-intc.yaml

diff --git a/Documentation/devicetree/bindings/interrupt-controller/mstar,mst-intc.yaml b/Documentation/devicetree/bindings/interrupt-controller/mstar,mst-intc.yaml
new file mode 100644
index 000000000000..bbf0f26cd008
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/mstar,mst-intc.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/mstar,mst-intc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MStar Interrupt Controller
+
+maintainers:
+  - Mark-PK Tsai <mark-pk.tsai@...iatek.com>
+
+description: |+
+  MStar, SigmaStar and Mediatek TV SoCs contain multiple legacy
+  interrupt controllers that routes interrupts to the GIC.
+
+  The HW block exposes a number of interrupt controllers, each
+  can support up to 64 interrupts.
+
+properties:
+  compatible:
+    const: mstar,mst-intc
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    const: 3
+    description: |
+      Use the same format as specified by GIC in arm,gic.yaml.
+
+  reg:
+    maxItems: 1
+
+  mstar,irqs-map-range:
+    description: |
+      The range <start, end> of parent interrupt controller's interrupt
+      lines that are hardwired to mstar interrupt controller.
+    $ref: /schemas/types.yaml#/definitions/uint32-matrix
+    items:
+      minItems: 2
+      maxItems: 2
+
+  mstar,intc-no-eoi:
+    description:
+      Mark this controller has no End Of Interrupt(EOI) implementation.
+    type: boolean
+
+required:
+  - compatible
+  - reg
+  - mstar,irqs-map-range
+
+additionalProperties: false
+
+examples:
+  - |
+    mst_intc0: interrupt-controller@...032d0 {
+      compatible = "mstar,mst-intc";
+      interrupt-controller;
+      #interrupt-cells = <3>;
+      interrupt-parent = <&gic>;
+      reg = <0x1f2032d0 0x30>;
+      mstar,irqs-map-range = <0 63>;
+    };
+...
-- 
2.18.0