diff mbox

[v6,1/3] dt-bindings: dmaengine: Add MediaTek High-Speed DMA controller bindings

Message ID 1ae80ef14cac41dea35dca49e8071d67c955f5e7.1520407882.git.sean.wang@mediatek.com (mailing list archive)
State New, archived
Headers show

Commit Message

Sean Wang March 7, 2018, 8:16 a.m. UTC
From: Sean Wang <sean.wang@mediatek.com>

Document the devicetree bindings for MediaTek High-Speed DMA controller
which could be found on MT7623 SoC or other similar Mediatek SoCs.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 .../devicetree/bindings/dma/mtk-hsdma.txt          | 33 ++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/dma/mtk-hsdma.txt

Comments

Rob Herring (Arm) March 7, 2018, 7:28 p.m. UTC | #1
On Wed, Mar 07, 2018 at 04:16:26PM +0800, sean.wang@mediatek.com wrote:
> From: Sean Wang <sean.wang@mediatek.com>
> 
> Document the devicetree bindings for MediaTek High-Speed DMA controller
> which could be found on MT7623 SoC or other similar Mediatek SoCs.
> 
> Signed-off-by: Sean Wang <sean.wang@mediatek.com>
> ---
>  .../devicetree/bindings/dma/mtk-hsdma.txt          | 33 ++++++++++++++++++++++
>  1 file changed, 33 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/dma/mtk-hsdma.txt

Please add reviewed-by's when posting new versions.

> 
> diff --git a/Documentation/devicetree/bindings/dma/mtk-hsdma.txt b/Documentation/devicetree/bindings/dma/mtk-hsdma.txt
> new file mode 100644
> index 0000000..4bb31735
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/dma/mtk-hsdma.txt
> @@ -0,0 +1,33 @@
> +MediaTek High-Speed DMA Controller
> +==================================
> +
> +This device follows the generic DMA bindings defined in dma/dma.txt.
> +
> +Required properties:
> +
> +- compatible:	Must be one of
> +		  "mediatek,mt7622-hsdma": for MT7622 SoC
> +		  "mediatek,mt7623-hsdma": for MT7623 SoC
> +- reg:		Should contain the register's base address and length.
> +- interrupts:	Should contain a reference to the interrupt used by this
> +		device.
> +- clocks:	Should be the clock specifiers corresponding to the entry in
> +		clock-names property.
> +- clock-names:	Should contain "hsdma" entries.
> +- power-domains: Phandle to the power domain that the device is part of
> +- #dma-cells: 	The length of the DMA specifier, must be <1>. This one cell
> +		in dmas property of a client device represents the channel
> +		number.
> +Example:
> +
> +        hsdma: dma-controller@1b007000 {
> +		compatible = "mediatek,mt7623-hsdma";
> +		reg = <0 0x1b007000 0 0x1000>;
> +		interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&ethsys CLK_ETHSYS_HSDMA>;
> +		clock-names = "hsdma";
> +		power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
> +		#dma-cells = <1>;
> +	};
> +
> +DMA clients must use the format described in dma/dma.txt file.
> -- 
> 2.7.4
>
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/dma/mtk-hsdma.txt b/Documentation/devicetree/bindings/dma/mtk-hsdma.txt
new file mode 100644
index 0000000..4bb31735
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/mtk-hsdma.txt
@@ -0,0 +1,33 @@ 
+MediaTek High-Speed DMA Controller
+==================================
+
+This device follows the generic DMA bindings defined in dma/dma.txt.
+
+Required properties:
+
+- compatible:	Must be one of
+		  "mediatek,mt7622-hsdma": for MT7622 SoC
+		  "mediatek,mt7623-hsdma": for MT7623 SoC
+- reg:		Should contain the register's base address and length.
+- interrupts:	Should contain a reference to the interrupt used by this
+		device.
+- clocks:	Should be the clock specifiers corresponding to the entry in
+		clock-names property.
+- clock-names:	Should contain "hsdma" entries.
+- power-domains: Phandle to the power domain that the device is part of
+- #dma-cells: 	The length of the DMA specifier, must be <1>. This one cell
+		in dmas property of a client device represents the channel
+		number.
+Example:
+
+        hsdma: dma-controller@1b007000 {
+		compatible = "mediatek,mt7623-hsdma";
+		reg = <0 0x1b007000 0 0x1000>;
+		interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_LOW>;
+		clocks = <&ethsys CLK_ETHSYS_HSDMA>;
+		clock-names = "hsdma";
+		power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
+		#dma-cells = <1>;
+	};
+
+DMA clients must use the format described in dma/dma.txt file.