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authorMartin Blumenstingl <martin.blumenstingl@googlemail.com>2018-03-03 22:43:02 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-09 18:43:52 +0100
commit05db0dcc70c61bb51d01845e558bd43add5d55bb (patch)
tree1fb804a9bcb37890c24a47aa61603f855d18355b /Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
parentusb: isp1760: Use kasprintf (diff)
downloadlinux-05db0dcc70c61bb51d01845e558bd43add5d55bb.tar.xz
linux-05db0dcc70c61bb51d01845e558bd43add5d55bb.zip
dt-bindings: usb: add the documentation for USB HCDs
A USB HCD may have several PHYs which need to be configured before the the HCD starts working. This adds the documentation for such a USB HCD as well as a reference to the new "usb-hcd.txt" from all bindings that implement a USB HCD which support one USB PHY per port. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Rob Herring <robh@kernel.org> Tested-by: Yixun Lan <yixun.lan@amlogic.com> Tested-by: Neil Armstrong <narmstrong@baylibre.con> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt')
-rw-r--r--Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt5
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
index 88d9f4a4b280..266c2d917a28 100644
--- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
+++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
@@ -32,7 +32,7 @@ Required properties:
"mcu_ck": mcu_bus clock for register access,
"dma_ck": dma_bus clock for data transfer by DMA
- - phys : a list of phandle + phy specifier pairs
+ - phys : see usb-hcd.txt in the current directory
Optional properties:
- wakeup-source : enable USB remote wakeup;
@@ -52,6 +52,9 @@ Optional properties:
See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
- imod-interval-ns: default interrupt moderation interval is 5000ns
+additionally the properties from usb-hcd.txt (in the current directory) are
+supported.
+
Example:
usb30: usb@11270000 {
compatible = "mediatek,mt8173-xhci";