From 9fe5a0790af6af619940a2819aabe8f6fb30700c Mon Sep 17 00:00:00 2001 From: Inochi Amaoto Date: Mon, 14 Apr 2025 06:49:12 +0800 Subject: [PATCH] dt-bindings: interrupt-controller: Add Sophgo SG2044 MSI controller Like SG2042, SG2044 also uses an external MSI controller to provide MSI interrupt for PCIe controllers. The difference between these two MSI controllers are: 1. SG2044 acks the interrupt by writing 0, SG2042 by setting the bit related to the interrupt. 2. SG2044 uses interrupt number modulo 32 as MSI message data, but SG2042 uses the bit related to the interrupt. Add support for the SG2044 MSI controller. Signed-off-by: Inochi Amaoto Signed-off-by: Thomas Gleixner Tested-by: Chen Wang # SG2042 Reviewed-by: Chen Wang Acked-by: Conor Dooley Link: https://lore.kernel.org/all/20250413224922.69719-2-inochiama@gmail.com --- .../bindings/interrupt-controller/sophgo,sg2042-msi.yaml | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/interrupt-controller/sophgo,sg2042-msi.yaml b/Documentation/devicetree/bindings/interrupt-controller/sophgo,sg2042-msi.yaml index e1ffd55fa7bf8..f6b8b1d92f799 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/sophgo,sg2042-msi.yaml +++ b/Documentation/devicetree/bindings/interrupt-controller/sophgo,sg2042-msi.yaml @@ -18,7 +18,9 @@ allOf: properties: compatible: - const: sophgo,sg2042-msi + enum: + - sophgo,sg2042-msi + - sophgo,sg2044-msi reg: items: -- 2.47.2