Re: [PATCH v1 01/12] dt-bindings: usb: add support for dwc3 controller on HiSilicon SoCs

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hello!

On 03.12.2018 6:45, Yu Chen wrote:

This patch adds binding descriptions to support the dwc3 controller
on HiSilicon SoCs and boards like the HiKey960.

Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: John Stultz <john.stultz@xxxxxxxxxx>
Signed-off-by: Yu Chen <chenyu56@xxxxxxxxxx>
---
  .../devicetree/bindings/usb/dwc3-hisi.txt          | 67 ++++++++++++++++++++++
  1 file changed, 67 insertions(+)
  create mode 100644 Documentation/devicetree/bindings/usb/dwc3-hisi.txt

diff --git a/Documentation/devicetree/bindings/usb/dwc3-hisi.txt b/Documentation/devicetree/bindings/usb/dwc3-hisi.txt
new file mode 100644
index 000000000000..d32d2299a0a1
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/dwc3-hisi.txt
@@ -0,0 +1,67 @@
+HiSilicon DWC3 USB SoC controller
+
+This file documents the parameters for the dwc3-hisi driver.
+
+Required properties:
+- compatible:	should be "hisilicon,hi3660-dwc3"
+- clocks:	A list of phandle + clock-specifier pairs for the
+		clocks listed in clock-names
+- clock-names:	Specify clock names
+- resets:	list of phandle and reset specifier pairs.
+
+Sub-nodes:
+The dwc3 core should be added as subnode to HiSilicon DWC3 as shown in the
+example below. The DT binding details of dwc3 can be found in:
+Documentation/devicetree/bindings/usb/dwc3.txt
+
+Example:
+	usb3: hisi_dwc3 {
+		compatible = "hisilicon,hi3660-dwc3";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		clocks = <&crg_ctrl HI3660_CLK_ABB_USB>,
+			 <&crg_ctrl HI3660_ACLK_GATE_USB3OTG>;
+		clock-names = "clk_usb3phy_ref", "aclk_usb3otg";
+		assigned-clocks = <&crg_ctrl HI3660_ACLK_GATE_USB3OTG>;
+		assigned-clock-rates = <229000000>;
+		resets = <&crg_rst 0x90 8>,
+			 <&crg_rst 0x90 7>,
+			 <&crg_rst 0x90 6>,
+			 <&crg_rst 0x90 5>;
+
+		dwc3: dwc3@ff100000 {

According to the DT spec, the node names should be generic, not chip specific, i.e. usb@ff100000 in this case.

[...]

MBR, Sergei



[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux