Messages in this thread Patch in this message | | | From | Zong Li <> | Subject | [PATCH 1/3] riscv: dts: Add dma-channels property in dma node | Date | Wed, 5 Jan 2022 13:43:58 +0800 |
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Add dma-channels property, then we can determine how many channels there by device tree.
Signed-off-by: Zong Li <zong.li@sifive.com> --- arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi | 1 + arch/riscv/boot/dts/sifive/fu540-c000.dtsi | 1 + 2 files changed, 2 insertions(+)
diff --git a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi index c9f6d205d2ba..3c48f2d7a4a4 100644 --- a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi +++ b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi @@ -188,6 +188,7 @@ dma@3000000 { reg = <0x0 0x3000000 0x0 0x8000>; interrupt-parent = <&plic>; interrupts = <23 24 25 26 27 28 29 30>; + dma-channels = <4>; #dma-cells = <1>; }; diff --git a/arch/riscv/boot/dts/sifive/fu540-c000.dtsi b/arch/riscv/boot/dts/sifive/fu540-c000.dtsi index 0655b5c4201d..2bdfe7f06e4b 100644 --- a/arch/riscv/boot/dts/sifive/fu540-c000.dtsi +++ b/arch/riscv/boot/dts/sifive/fu540-c000.dtsi @@ -171,6 +171,7 @@ dma: dma@3000000 { reg = <0x0 0x3000000 0x0 0x8000>; interrupt-parent = <&plic0>; interrupts = <23 24 25 26 27 28 29 30>; + dma-channels = <4>; #dma-cells = <1>; }; uart1: serial@10011000 { -- 2.31.1
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