diff options
| author | Roger Quadros <[email protected]> | 2015-01-26 14:15:28 +0200 |
|---|---|---|
| committer | Tony Lindgren <[email protected]> | 2015-01-30 15:48:39 -0800 |
| commit | 87517d26d888014c1bc93f4a7df623c4f413ccfb (patch) | |
| tree | 5e47445c80b62daa4c6f177630152ede1aebd8e4 | |
| parent | 72d032266b630e29ef97fc01a6cb1e15d7a20d4c (diff) | |
ARM: dts: dra7-evm: 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).
Gets USB peripheral mode to work on this EVM.
Signed-off-by: Roger Quadros <[email protected]>
Reviewed-by: Felipe Balbi <[email protected]>
Acked-by: Felipe Balbi <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
| -rw-r--r-- | arch/arm/boot/dts/dra7-evm.dts | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts index 10b725c7bfc0..c1d0ac7bd002 100644 --- a/arch/arm/boot/dts/dra7-evm.dts +++ b/arch/arm/boot/dts/dra7-evm.dts @@ -26,6 +26,16 @@ regulator-max-microvolt = <3300000>; }; + extcon_usb1: extcon_usb1 { + compatible = "linux,extcon-usb-gpio"; + id-gpio = <&pcf_gpio_21 1 GPIO_ACTIVE_HIGH>; + }; + + extcon_usb2: extcon_usb2 { + compatible = "linux,extcon-usb-gpio"; + id-gpio = <&pcf_gpio_21 2 GPIO_ACTIVE_HIGH>; + }; + vtt_fixed: fixedregulator-vtt { compatible = "regulator-fixed"; regulator-name = "vtt_fixed"; @@ -391,6 +401,19 @@ }; }; }; + + pcf_gpio_21: gpio@21 { + compatible = "ti,pcf8575"; + reg = <0x21>; + lines-initial-states = <0x1408>; + gpio-controller; + #gpio-cells = <2>; + interrupt-parent = <&gpio6>; + interrupts = <11 IRQ_TYPE_EDGE_FALLING>; + interrupt-controller; + #interrupt-cells = <2>; + }; + }; &i2c2 { @@ -520,6 +543,14 @@ }; }; +&omap_dwc3_1 { + extcon = <&extcon_usb1>; +}; + +&omap_dwc3_2 { + extcon = <&extcon_usb2>; +}; + &usb1 { dr_mode = "peripheral"; pinctrl-names = "default"; |