From 87517d26d888014c1bc93f4a7df623c4f413ccfb Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Mon, 26 Jan 2015 14:15:28 +0200 Subject: [PATCH] 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 Reviewed-by: Felipe Balbi Acked-by: Felipe Balbi Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/dra7-evm.dts | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) 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"; -- 2.20.1