On Sun, 16 Jan 2022 17:35:26 PST (-0800), zong.li@xxxxxxxxxx wrote:
Add dma-channels property, then we can determine how many channels there
by device tree.
Signed-off-by: Zong Li <zong.li@xxxxxxxxxx>
---
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 {
I've got some comments in on the bindings, but I'm assuming it's easier
to keep these all together. Happy to take this through the RISC-V tree,
but I'm guessing it'll be easier to take these via dmaengine as there's
a lot more diff there so
Reviewed-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx>
Acked-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx>
Thanks!
