From 7a30a7a6c81e8343e27056ac0bddd5fcbc33b8a8 Mon Sep 17 00:00:00 2001 From: Aniket Limaye Date: Fri, 23 Jan 2026 12:25:45 +0530 Subject: [PATCH] dt-bindings: interrupt-controller: ti,sci-intr: Per-line interrupt-types Update the bindings to allow setting per-line interrupt-types. Some Interrupt Router instances can only work with a specific trigger type (edge or level), while others act as simple passthroughs that preserve the source interrupt type unchanged. Make "ti,intr-trigger-type" property optional, with its absence indicating that the router acts as a passthrough. When absent, "#interrupt-cells" must be 2 to allow each interrupt source to specify its trigger type per-line. Signed-off-by: Aniket Limaye Signed-off-by: Thomas Gleixner Reviewed-by: Rob Herring (Arm) Link: https://patch.msgid.link/20260123-ul-driver-i2c-j722s-v4-1-b08625c487d5@ti.com --- .../interrupt-controller/ti,sci-intr.yaml | 38 ++++++++++++++++--- 1 file changed, 33 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.yaml b/Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.yaml index c99cc7323c711..de45f0c4b1d16 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.yaml +++ b/Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.yaml @@ -15,8 +15,7 @@ allOf: description: | The Interrupt Router (INTR) module provides a mechanism to mux M interrupt inputs to N interrupt outputs, where all M inputs are selectable - to be driven per N output. An Interrupt Router can either handle edge - triggered or level triggered interrupts and that is fixed in hardware. + to be driven per N output. Interrupt Router +----------------------+ @@ -64,9 +63,14 @@ properties: interrupt-controller: true '#interrupt-cells': - const: 1 + enum: [1, 2] description: | - The 1st cell should contain interrupt router input hw number. + Number of cells in interrupt specifier. Depends on ti,intr-trigger-type: + - If ti,intr-trigger-type is present: must be 1 + The 1st cell should contain interrupt router input hw number. + - If ti,intr-trigger-type is absent: must be 2 + The 1st cell should contain interrupt router input hw number. + The 2nd cell should contain interrupt trigger type (preserved by router). ti,interrupt-ranges: $ref: /schemas/types.yaml#/definitions/uint32-matrix @@ -82,9 +86,22 @@ properties: - description: | "limit" specifies the limit for translation +if: + required: + - ti,intr-trigger-type +then: + properties: + '#interrupt-cells': + const: 1 + description: Interrupt ID only. Interrupt type is specified globally +else: + properties: + '#interrupt-cells': + const: 2 + description: Interrupt ID and corresponding interrupt type + required: - compatible - - ti,intr-trigger-type - interrupt-controller - '#interrupt-cells' - ti,sci @@ -105,3 +122,14 @@ examples: ti,sci-dev-id = <131>; ti,interrupt-ranges = <0 360 32>; }; + + - | + interrupt-controller { + compatible = "ti,sci-intr"; + interrupt-controller; + interrupt-parent = <&gic500>; + #interrupt-cells = <2>; + ti,sci = <&dmsc>; + ti,sci-dev-id = <131>; + ti,interrupt-ranges = <0 360 32>; + }; -- 2.47.3