Hello. On 07-05-2014 3:00, dinguyen@xxxxxxxxxx wrote:
From: Dinh Nguyen <dinguyen@xxxxxxxxxx>
The "dma-desc-enable" property can be used to enable descriptor DMA mode for the DWC2 USB IP.
Signed-off-by: Dinh Nguyen <dinguyen@xxxxxxxxxx> --- v2: Reword property description to enable instead of disable --- Documentation/devicetree/bindings/usb/dwc2.txt | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt index b8b6871..9b471b5 100644 --- a/Documentation/devicetree/bindings/usb/dwc2.txt +++ b/Documentation/devicetree/bindings/usb/dwc2.txt @@ -14,6 +14,13 @@ Refer to clk/clock-bindings.txt for generic clock consumer properties Optional properties: - phys: phy provider specifier - phy-names: shall be "device" +- dma-desc-enable: Should be <1> to enable descriptor dma mode. This + property is used to enable descriptor DMA support. The reason why + this property is needed is because the HW supports descriptor DMA + mode, but descriptor dma mode will not support SPLIT transactions. + So this property can be used to optionally enable descriptor DMA + support.
Why not make this property boolean? WBR, Sergei -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
