Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 96 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/interrupt-controller/samsung,exynos4210-combiner.yaml b/Documentation/devicetree/bindings/interrupt-controller/samsung,exynos4210-combiner.yaml
new file mode 100644
index 000000000..72456a07d
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+++ b/Documentation/devicetree/bindings/interrupt-controller/samsung,exynos4210-combiner.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/samsung,exynos4210-combiner.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos SoC Interrupt Combiner Controller
+
+maintainers:
+  - Krzysztof Kozlowski <krzk@kernel.org>
+
+description: |
+  Samsung's Exynos4 architecture includes a interrupt combiner controller which
+  can combine interrupt sources as a group and provide a single interrupt
+  request for the group. The interrupt request from each group are connected to
+  a parent interrupt controller, such as GIC in case of Exynos4210.
+
+  The interrupt combiner controller consists of multiple combiners. Up to eight
+  interrupt sources can be connected to a combiner. The combiner outputs one
+  combined interrupt for its eight interrupt sources. The combined interrupt is
+  usually connected to a parent interrupt controller.
+
+  A single node in the device tree is used to describe the interrupt combiner
+  controller module (which includes multiple combiners). A combiner in the
+  interrupt controller module shares config/control registers with other
+  combiners. For example, a 32-bit interrupt enable/disable config register can
+  accommodate up to 4 interrupt combiners (with each combiner supporting up to
+  8 interrupt sources).
+
+allOf:
+  - $ref: /schemas/interrupt-controller.yaml#
+
+properties:
+  compatible:
+    const: samsung,exynos4210-combiner
+
+  interrupt-controller: true
+
+  interrupts:
+    minItems: 8
+    maxItems: 32
+
+  "#interrupt-cells":
+    description: |
+      The meaning of the cells are:
+        * First Cell: Combiner Group Number.
+        * Second Cell: Interrupt number within the group.
+    const: 2
+
+  reg:
+    maxItems: 1
+
+  samsung,combiner-nr:
+    description: |
+      The number of interrupt combiners supported.  Should match number
+      of interrupts set in "interrupts" property.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 8
+    maximum: 32
+    default: 16
+
+required:
+  - compatible
+  - interrupt-controller
+  - interrupts
+  - "#interrupt-cells"
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    interrupt-controller@10440000 {
+        compatible = "samsung,exynos4210-combiner";
+        interrupt-controller;
+        #interrupt-cells = <2>;
+        reg = <0x10440000 0x1000>;
+        interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
+    };