github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-08 06:25:52 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

FROMLIST: Documentation: bindings: add DT documentation for Rockchip

Browse Source 
USB2PHY

Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
(merge from https://patchwork.kernel.org/patch/9190285/)

Change-Id: I7199a4e84f13e58e98d5c0d21ce01837e961c3e8
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
This commit is contained in:
Frank Wang 2016-06-24 10:55:49 +08:00 committed by Gerrit Code Review
parent 8d0bd2f35f
commit 956fb822d9
1 changed files with 28 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
View File

@ -1,21 +1,34 @@
ROCKCHIP USB2.0 PHY WITH INNO IP BLOCK
Required properties (phy (parent) node):
- compatible: should contain:
- compatible : should be one of the listed compatibles:
* "rockchip,rk3366-usb2phy"
- #clock-cells: should be 0.
- clock-names: specify the 480m output clk name.
* "rockchip,rk3399-usb2phy"
- reg : the address offset of grf for usb-phy configuration.
- #clock-cells : should be 0.
- clock-output-names : specify the 480m output clock name.
Optional properties:
- vbus_host-gpio: pull gpio high/low to control the host vbus power.
- clocks : phandle + phy specifier pair, for the input clock of phy.
- clock-names : input clock name of phy, must be "phyclk".
Required nodes: a sub-node is required for each port the phy provides.
The sub-node name is used to identify host or otg port.
Required nodes : a sub-node is required for each port the phy provides.
The sub-node name is used to identify host or otg port,
and shall be the following entries:
* "otg-port" : the name of otg port.
* "host-port" : the name of host port.
Required properties (port (child) node):
- #phy-cells: must be 0. See ./phy-bindings.txt for details.
- interrupts: irq number for host/otg port.
- interrupt-names: interrupt name, in line with irq number.
- #phy-cells : must be 0. See ./phy-bindings.txt for details.
- interrupts : specify an interrupt for each entry in interrupt-names.
- interrupt-names : a list which shall be the following entries:
* "otg-id" : for the otg id interrupt.
* "otg-bvalid" : for the otg vbus interrupt.
* "linestate" : for the host/otg linestate interrupt.
Optional properties:
- phy-supply : phandle to a regulator that provides power to VBUS.
See ./phy-bindings.txt for details.
Example:
@ -26,15 +39,18 @@ grf: syscon@ff770000 {
...
u2phy: usb2-phy {
u2phy: usb2-phy@700 {
compatible = "rockchip,rk3366-usb2phy";
reg = <0x700 0x2c>;
#clock-cells = <0>;
clock-output-names = "sclk_otgphy0_480m";
u2phy_otg: otg-port {
#phy-cells = <0>;
interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "linestate";
interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "otg-id", "otg-bvalid", "linestate";
status = "okay";
};