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ARM: dts: am57xx-beagle-x15: Add extcon nodes for USB

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On this EVM, the USB cable state has to be determined via the
ID pin tied to a GPIO line. We use the gpio-usb-extcon driver
to read the ID pin and the extcon framework to forward
the USB cable state information to the USB driver so the
controller can be configured in the right mode (host/peripheral).

NOTE: the ports on this board cannot switch roles. They are
configured either host or peripheral by hardwiring the
respective ID pins.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Roger Quadros 2015-01-26 14:15:30 +02:00 committed by Tony Lindgren
parent f56de327b4
commit f60db98eaa
1 changed files with 33 additions and 0 deletions
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33
arch/arm/boot/dts/am57xx-beagle-x15.dts
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@ -88,6 +88,20 @@
gpio-fan,speed-map = <0 0>,
<13000 1>;
};
extcon_usb1: extcon_usb1 {
compatible = "linux,extcon-usb-gpio";
id-gpio = <&gpio7 25 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&extcon_usb1_pins>;
};
extcon_usb2: extcon_usb2 {
compatible = "linux,extcon-usb-gpio";
id-gpio = <&gpio7 24 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&extcon_usb2_pins>;
};
};
&dra7_pmx_core {
@ -252,6 +266,17 @@
>;
};
extcon_usb1_pins: extcon_usb1_pins {
pinctrl-single,pins = <
0x3ec (PIN_INPUT_PULLUP | MUX_MODE14) /* uart1_rtsn.gpio7_25 */
>;
};
extcon_usb2_pins: extcon_usb2_pins {
pinctrl-single,pins = <
0x3e8 (PIN_INPUT_PULLUP | MUX_MODE14) /* uart1_ctsn.gpio7_24 */
>;
};
};
&i2c1 {
@ -523,3 +548,11 @@
pinctrl-names = "default";
pinctrl-0 = <&usb1_pins>;
};
&omap_dwc3_1 {
extcon = <&extcon_usb1>;
};
&omap_dwc3_2 {
extcon = <&extcon_usb2>;
};