From: George Cherian <george.cher...@ti.com> Add extcon nodes for USB, without which USB won't work.
EXTCON is used to tell dwc3-omap.ko that a cable has been connected. It also passes the state of ID pin so that can be written to UTMI_STATUS register on dwc3-omap's address space. Signed-off-by: George Cherian <george.cher...@ti.com> Signed-off-by: Sekhar Nori <nsek...@ti.com> Signed-off-by: Felipe Balbi <ba...@ti.com> --- ********************************************************** ** ** ** UNTESTED ** ********************************************************** This patch was taken from TI's v3.14 tree available at [1], the patch was tested there. I didn't test on v3.18-rc3 because my DRA7 board has broken down. Working to get a replacement. Anyway, I'd suggest Tony to wait for a Tested-by tag. Note that in order for this to work you need following extra patches: http://marc.info/?l=linux-omap&m=141503217215492&w=2 http://marc.info/?l=linux-omap&m=141503238715590&w=2 http://marc.info/?l=linux-omap&m=141503246515631&w=2 http://marc.info/?l=linux-omap&m=141503241315599&w=2 http://marc.info/?l=linux-omap&m=141503282815782&w=2 [1] http://git.ti.com/ti-linux-kernel/ti-linux-kernel/commits/ti-linux-3.14.y arch/arm/boot/dts/dra7-evm.dts | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts index c6ce625..7710f29 100644 --- a/arch/arm/boot/dts/dra7-evm.dts +++ b/arch/arm/boot/dts/dra7-evm.dts @@ -26,6 +26,18 @@ regulator-max-microvolt = <3300000>; }; + extcon1: dra7x_usbid_extcon1 { + compatible = "linux,extcon-gpio"; + gpios = <&pcf_gpio_21 1 GPIO_ACTIVE_LOW>; + cable-name = "USB-HOST"; + }; + + extcon2: dra7x_usbid_extcon2 { + compatible = "linux,extcon-gpio"; + gpios = <&pcf_gpio_21 2 GPIO_ACTIVE_LOW>; + cable-name = "USB-HOST"; + }; + vtt_fixed: fixedregulator-vtt { compatible = "regulator-fixed"; regulator-name = "vtt_fixed"; @@ -291,6 +303,19 @@ }; }; }; + + pcf_gpio_21: gpio@21 { + compatible = "ti,pcf8575"; + reg = <0x21>; + lines-initial-states = <0x1408>; + gpio-controller; + #gpio-cells = <2>; + interrupt-parent = <&gpio6>; + interrupts = <14 IRQ_TYPE_EDGE_FALLING>; + interrupt-controller; + #interrupt-cells = <2>; + }; + }; &i2c2 { @@ -420,6 +445,14 @@ }; }; +&omap_dwc3_1 { + extcon = <&extcon1>; +}; + +&omap_dwc3_2 { + extcon = <&extcon2>; +}; + &usb1 { dr_mode = "peripheral"; pinctrl-names = "default"; -- 2.1.0.GIT -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
