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From:   Conor Dooley <mail@conchuod.ie>
To:     David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
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Cc:     Thomas Gleixner <tglx@linutronix.de>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Conor Dooley <conor.dooley@microchip.com>,
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        Jose Abreu <joabreu@synopsys.com>,
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        linux-riscv@lists.infradead.org
Subject: [PATCH v2 09/16] riscv: dts: canaan: add a specific compatible for k210's dma
Date:   Mon, 27 Jun 2022 20:39:57 +0100
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From: Conor Dooley <conor.dooley@microchip.com>

The DMAC on the k210 has a non standard interrupt configuration, which
leads to dtbs_check warnings:

k210_generic.dtb: dma-controller@50000000: interrupts: [[27], [28], [29], [30], [31], [32]] is too long
From schema: Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml

Update the binding to use a custom compatible to avoid the warning.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
 arch/riscv/boot/dts/canaan/k210.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/canaan/k210.dtsi b/arch/riscv/boot/dts/canaan/k210.dtsi
index cd4eae82d8b2..45ccab36618a 100644
--- a/arch/riscv/boot/dts/canaan/k210.dtsi
+++ b/arch/riscv/boot/dts/canaan/k210.dtsi
@@ -143,7 +143,7 @@ gpio0: gpio-controller@38001000 {
 		};
 
 		dmac0: dma-controller@50000000 {
-			compatible = "snps,axi-dma-1.01a";
+			compatible = "canaan,k210-axi-dma", "snps,axi-dma-1.01a";
 			reg = <0x50000000 0x1000>;
 			interrupts = <27>, <28>, <29>, <30>, <31>, <32>;
 			#dma-cells = <1>;
-- 
2.36.1