[PATCH 2/2] net: ethernet: sun4i-emac: enable dma rx in sun4i

[PATCH 2/2] net: ethernet: sun4i-emac: enable dma rx in sun4i

[Conley Lee]

The current sun4i-emac driver supports receiving data packets using DMA,
but this feature is not enabled in the device tree (dts) configuration.
This patch enables the DMA receive option in the dts file.

Signed-off-by: Conley Lee <conleylee@foxmail.com>
---
 arch/arm/boot/dts/allwinner/sun4i-a10.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/allwinner/sun4i-a10.dtsi b/arch/arm/boot/dts/allwinner/sun4i-a10.dtsi
index 51a6464aa..b20ef5841 100644
--- a/arch/arm/boot/dts/allwinner/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/allwinner/sun4i-a10.dtsi
@@ -317,6 +317,8 @@ emac: ethernet@1c0b000 {
 			allwinner,sram = <&emac_sram 1>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&emac_pins>;
+			dmas = <&dma SUN4I_DMA_DEDICATED 7>;
+			dma-names = "rx";
 			status = "disabled";
 		};
 
-- 
2.25.1

Re: [PATCH 2/2] net: ethernet: sun4i-emac: enable dma rx in sun4i

[Andrew Lunn]

On Sat, Aug 30, 2025 at 03:50:00PM +0800, Conley Lee wrote:
> The current sun4i-emac driver supports receiving data packets using DMA,
> but this feature is not enabled in the device tree (dts) configuration.
> This patch enables the DMA receive option in the dts file.

Nitpick: It is actually a dtsi file...

	 Andrew

Re: [PATCH 2/2] net: ethernet: sun4i-emac: enable dma rx in sun4i

[Rob Herring (Arm)]

On Sat, 30 Aug 2025 15:50:00 +0800, Conley Lee wrote:
> The current sun4i-emac driver supports receiving data packets using DMA,
> but this feature is not enabled in the device tree (dts) configuration.
> This patch enables the DMA receive option in the dts file.
> 
> Signed-off-by: Conley Lee <conleylee@foxmail.com>
> ---
>  arch/arm/boot/dts/allwinner/sun4i-a10.dtsi | 2 ++
>  1 file changed, 2 insertions(+)
> 


My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade


This patch series was applied (using b4) to base:
 Base: attempting to guess base-commit...
 Base: tags/next-20250829 (exact match)

If this is not the correct base, please add 'base-commit' tag
(or use b4 which does this automatically)

New warnings running 'make CHECK_DTBS=y for arch/arm/boot/dts/allwinner/' for tencent_C4014DA405A96C2E1E7FEFCC050BA56D5B08@qq.com:

arch/arm/boot/dts/allwinner/sun4i-a10-jesurun-q5.dtb: ethernet@1c0b000 (allwinner,sun4i-a10-emac): Unevaluated properties are not allowed ('dma-names', 'dmas' were unexpected)
	from schema $id: http://devicetree.org/schemas/net/allwinner,sun4i-a10-emac.yaml#
arch/arm/boot/dts/allwinner/sun4i-a10-a1000.dtb: ethernet@1c0b000 (allwinner,sun4i-a10-emac): Unevaluated properties are not allowed ('dma-names', 'dmas' were unexpected)
	from schema $id: http://devicetree.org/schemas/net/allwinner,sun4i-a10-emac.yaml#
arch/arm/boot/dts/allwinner/sun4i-a10-cubieboard.dtb: ethernet@1c0b000 (allwinner,sun4i-a10-emac): Unevaluated properties are not allowed ('dma-names', 'dmas' were unexpected)
	from schema $id: http://devicetree.org/schemas/net/allwinner,sun4i-a10-emac.yaml#
arch/arm/boot/dts/allwinner/sun4i-a10-olinuxino-lime.dtb: ethernet@1c0b000 (allwinner,sun4i-a10-emac): Unevaluated properties are not allowed ('dma-names', 'dmas' were unexpected)
	from schema $id: http://devicetree.org/schemas/net/allwinner,sun4i-a10-emac.yaml#
arch/arm/boot/dts/allwinner/sun4i-a10-itead-iteaduino-plus.dtb: ethernet@1c0b000 (allwinner,sun4i-a10-emac): Unevaluated properties are not allowed ('dma-names', 'dmas' were unexpected)
	from schema $id: http://devicetree.org/schemas/net/allwinner,sun4i-a10-emac.yaml#
arch/arm/boot/dts/allwinner/sun4i-a10-pcduino.dtb: ethernet@1c0b000 (allwinner,sun4i-a10-emac): Unevaluated properties are not allowed ('dma-names', 'dmas' were unexpected)
	from schema $id: http://devicetree.org/schemas/net/allwinner,sun4i-a10-emac.yaml#
arch/arm/boot/dts/allwinner/sun4i-a10-marsboard.dtb: ethernet@1c0b000 (allwinner,sun4i-a10-emac): Unevaluated properties are not allowed ('dma-names', 'dmas' were unexpected)
	from schema $id: http://devicetree.org/schemas/net/allwinner,sun4i-a10-emac.yaml#
arch/arm/boot/dts/allwinner/sun4i-a10-hackberry.dtb: ethernet@1c0b000 (allwinner,sun4i-a10-emac): Unevaluated properties are not allowed ('dma-names', 'dmas' were unexpected)
	from schema $id: http://devicetree.org/schemas/net/allwinner,sun4i-a10-emac.yaml#
arch/arm/boot/dts/allwinner/sun4i-a10-ba10-tvbox.dtb: ethernet@1c0b000 (allwinner,sun4i-a10-emac): Unevaluated properties are not allowed ('dma-names', 'dmas' were unexpected)
	from schema $id: http://devicetree.org/schemas/net/allwinner,sun4i-a10-emac.yaml#
arch/arm/boot/dts/allwinner/sun4i-a10-pcduino2.dtb: ethernet@1c0b000 (allwinner,sun4i-a10-emac): Unevaluated properties are not allowed ('dma-names', 'dmas' were unexpected)
	from schema $id: http://devicetree.org/schemas/net/allwinner,sun4i-a10-emac.yaml#