[PATCH 08/14] riscv: dts: canaan: add a specific compatible for k210's dma

Conor Dooley mail at conchuod.ie
Sat Jun 18 12:30:30 UTC 2022


From: Conor Dooley <conor.dooley at microchip.com>

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

k210_generic.dtb: dma-controller at 50000000: interrupts: [[27], [28], [29], [30], [31], [32]] is too long
>From schema: linux/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 at 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 287ea6eebe47..314f6da5d7f6 100644
--- a/arch/riscv/boot/dts/canaan/k210.dtsi
+++ b/arch/riscv/boot/dts/canaan/k210.dtsi
@@ -135,7 +135,7 @@ gpio0: gpio-controller at 38001000 {
 		};
 
 		dmac0: dma-controller at 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



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