[PATCH v2 5/7] ARM: dts: am57xx-beagle-x15: Add extcon nodes for USB
From: Roger Quadros <hidden>
Date: 2015-01-26 12:16:03
Also in:
linux-omap, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
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 <redacted> --- arch/arm/boot/dts/am57xx-beagle-x15.dts | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+)
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index 49edbda..ad1833b 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts@@ -80,6 +80,20 @@ default-state = "off"; }; }; + + 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 {
@@ -164,6 +178,17 @@ >; }; + 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 {
@@ -403,3 +428,11 @@ pinctrl-names = "default"; pinctrl-0 = <&usb1_pins>; }; + +&omap_dwc3_1 { + extcon = <&extcon_usb1>; +}; + +&omap_dwc3_2 { + extcon = <&extcon_usb2>; +};
--
2.1.0