diff options
| author | Roger Quadros <rogerq@ti.com> | 2015-01-26 14:15:30 +0200 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2015-01-30 15:48:39 -0800 |
| commit | f60db98eaa67e02915f01e11933501127bc004b0 (patch) | |
| tree | bc05f99ee2c091564798dd3a4dfec2a16337f8a3 /arch/arm | |
| parent | f56de327b4c41aa8dece7f32ab76571fac4bf586 (diff) | |
| download | op-kernel-dev-f60db98eaa67e02915f01e11933501127bc004b0.zip op-kernel-dev-f60db98eaa67e02915f01e11933501127bc004b0.tar.gz | |
ARM: dts: am57xx-beagle-x15: Add extcon nodes for USB
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>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/boot/dts/am57xx-beagle-x15.dts | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts index c5d4cea..0e889eb 100644 --- a/arch/arm/boot/dts/am57xx-beagle-x15.dts +++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts @@ -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>; +}; |
