From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752712AbbASRya (ORCPT ); Mon, 19 Jan 2015 12:54:30 -0500 Received: from devils.ext.ti.com ([198.47.26.153]:39586 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752487AbbASRwk (ORCPT ); Mon, 19 Jan 2015 12:52:40 -0500 From: Roger Quadros To: , , , CC: , , , , , , Roger Quadros Subject: [PATCH 3/5] ARM: dts: dra7-evm: Add extcon nodes for USB Date: Mon, 19 Jan 2015 19:52:20 +0200 Message-ID: <1421689942-10201-4-git-send-email-rogerq@ti.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1421689942-10201-1-git-send-email-rogerq@ti.com> References: <1421689942-10201-1-git-send-email-rogerq@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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 10b725c..47d9a06 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"; + id-gpio = <&pcf_gpio_21 1 GPIO_ACTIVE_HIGH>; + }; + + extcon_usb2: extcon_usb2 { + compatible = "linux,extcon-usb"; + 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"; -- 2.1.0