Re: [PATCH v2 1/2] dt-bindings: usb: add bindings doc for HiSilicon STB xHCI host controller
From: Rob Herring <robh@kernel.org>
Date: 2018-05-07 17:09:05
Also in:
linux-usb
On Sat, May 05, 2018 at 06:09:49PM +0800, sunjg79@163.com wrote:
quoted hunk ↗ jump to hunk
From: Jianguo Sun <redacted> This commit adds bindings doc for HiSilicon STB xHCI host controller. Signed-off-by: Jianguo Sun <redacted> --- .../bindings/usb/hisilicon,histb-xhci.txt | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/hisilicon,histb-xhci.txtdiff --git a/Documentation/devicetree/bindings/usb/hisilicon,histb-xhci.txt b/Documentation/devicetree/bindings/usb/hisilicon,histb-xhci.txt new file mode 100644 index 0000000..b1a06f1 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/hisilicon,histb-xhci.txt@@ -0,0 +1,46 @@ +HiSilicon STB xHCI + +The device node for HiSilicon STB xHCI host controller + +Required properties: + - compatible: should be "hisilicon,hi3798cv200-xhci" + - reg: specifies physical base address and size of the registers + - interrupts : interrupt used by the controller + - clocks: a list of phandle + clock-specifier pairs, one for each + entry in clock-names + - clock-names: must contain + "bus": for bus clock + "utmi": for utmi clock + "pipe": for pipeE clock + "suspend": for suspend clock + - resets: a list of phandle and reset specifier pairs as listed in + reset-names property. + - reset-names: must contain + "soft": for soft reset + - phys: a list of phandle + phy specifier pairs + - phy-names: must contain at least one of following: + "inno": for inno phy + "combo": for combo phy + +Optional properties: + - usb2-lpm-disable: indicate if we don't want to enable USB2 HW LPM + - usb3-lpm-capable: determines if platform is USB3 LPM capable + - quirk-broken-port-ped: set if the controller has broken port disable mechanism
This should either be true or not based on the compatible string.
+ - imod-interval-ns: default interrupt moderation interval is 40000ns
+
+Example:
+
+xhci0: xchi@f98a0000 {
+ compatible = "hisilicon,hi3798cv200-xhci";
+ reg = <0xf98a0000 0x10000>;
+ interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg HISTB_USB3_BUS_CLK>,
+ <&crg HISTB_USB3_UTMI_CLK>,
+ <&crg HISTB_USB3_PIPE_CLK>,
+ <&crg HISTB_USB3_SUSPEND_CLK>;
+ clock-names = "bus", "utmi", "pipe", "suspend";
+ resets = <&crg 0xb0 12>;
+ reset-names = "soft";
+ phys = <&usb2_phy1_port1 0>, <&combphy0 PHY_TYPE_USB3>;
+ phy-names = "inno", "combo";
+};
--
2.7.4
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