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

Mark-PK Tsai
2020-08-19T03:42:53Z

Add binding for MStar interrupt controller.

Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
---
.../interrupt-controller/mstar,mst-intc.yaml | 82 +++++++++++++++++++
1 file changed, 82 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..6e383315e529
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/mstar,mst-intc.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: GPL-2.0
+%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@mediatek.com>
+
+description: |+
+ MStar, SigmaStar and Mediatek DTV 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.
+
+allOf:
+ - $ref: /schemas/interrupt-controller.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: mstar,mst-intc
+ - enum:
+ - mediatek,mt58xx-intc
+
+ interrupt-controller: true
+
+ "#address-cells":
+ enum: [ 0, 1, 2 ]
+
+ "#size-cells":
+ enum: [ 1, 2 ]
+
+ "#interrupt-cells":
+ const: 3
+ description: |
+ Use the same format as specified by GIC in arm,gic.yaml.
+
+ reg:
+ description: |
+ Physical base address of the mstar interrupt controller
+ registers and length of memory mapped region.
+ minItems: 1
+
+ mstar,irqs-map-range:
+ description: |
+ The range 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.
+ This is a empty, boolean property.
+ type: boolean
+
+required:
+ - compatible
+ - reg
+ - mstar,irqs-map-range
+
+additionalProperties: false
+
+examples:
+ - |
+ mst_intc0: interrupt-controller@1f2032d0 {
+ compatible = "mstar,mst-intc", "mediatek,mt58xx-intc";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-parent = <&gic>;
+ reg = <0x1f2032d0 0x30>;
+ mstar,irqs-map-range = <0 63>;
+ };
+...
--
2.18.0