Patchwork [3/3] arm64: dts: hi3660: Add hisi asp dma device

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Submitter h00249924
Date Dec. 28, 2018, 6:36 a.m.
Message ID <1545978983-124360-3-git-send-email-hutenghui@huawei.com>
Download mbox | patch
Permalink /patch/690409/
State New
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Comments

h00249924 - Dec. 28, 2018, 6:36 a.m.
From: Youlin Wang <wwx575822@notesmail.huawei.com>

Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Youlin Wang <wwx575822@notesmail.huawei.com>
Signed-off-by: Tanglei Han <hantanglei@huawei.com>
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
---
 arch/arm64/boot/dts/hisilicon/hi3660.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
Rob Herring - Jan. 4, 2019, 2:44 a.m.
On Fri, Dec 28, 2018 at 02:36:23PM +0800, h00249924 wrote:
> From: Youlin Wang <wwx575822@notesmail.huawei.com>
> 
> Signed-off-by: John Stultz <john.stultz@linaro.org>
> Signed-off-by: Youlin Wang <wwx575822@notesmail.huawei.com>
> Signed-off-by: Tanglei Han <hantanglei@huawei.com>
> Cc: Wei Xu <xuwei5@hisilicon.com>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Mark Rutland <mark.rutland@arm.com>
> ---
>  arch/arm64/boot/dts/hisilicon/hi3660.dtsi | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
> index f432b0a..5223e36 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
> +++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
> @@ -1122,5 +1122,19 @@
>  				};
>  			};
>  		};
> +
> +		asp_dmac: asp_dmac@E804B000 {

dma-controller@e804b000

> +			compatible = "hisilicon,hisi-pcm-asp-dma-1.0";
> +			reg = <0x0 0xe804b000 0x0 0x1000>;
> +			#dma-cells = <1>;
> +			dma-channels = <16>;
> +			dma-requests = <32>;
> +			dma-min-chan = <0>;
> +			dma-used-chans = <0xFFFE>;

Use lowercase hex.

But more importantly, as John mentioned, this and other properties 
aren't documented.

> +			dma-share;
> +			interrupts = <0 216 4>;
> +			interrupt-names = "asp_dma_irq";
> +			status = "ok";

Don't need this.

> +		};
>  	};
>  };
> -- 
> 1.9.1
>

Patch

diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
index f432b0a..5223e36 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
@@ -1122,5 +1122,19 @@ 
 				};
 			};
 		};
+
+		asp_dmac: asp_dmac@E804B000 {
+			compatible = "hisilicon,hisi-pcm-asp-dma-1.0";
+			reg = <0x0 0xe804b000 0x0 0x1000>;
+			#dma-cells = <1>;
+			dma-channels = <16>;
+			dma-requests = <32>;
+			dma-min-chan = <0>;
+			dma-used-chans = <0xFFFE>;
+			dma-share;
+			interrupts = <0 216 4>;
+			interrupt-names = "asp_dma_irq";
+			status = "ok";
+		};
 	};
 };