Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755283AbdGXIuh (ORCPT ); Mon, 24 Jul 2017 04:50:37 -0400 Received: from mail-wr0-f179.google.com ([209.85.128.179]:33293 "EHLO mail-wr0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755098AbdGXIuN (ORCPT ); Mon, 24 Jul 2017 04:50:13 -0400 From: Gary Bisson To: devicetree@vger.kernel.org Cc: shawnguo@kernel.org, kernel@pengutronix.de, robh+dt@kernel.org, fabio.estevam@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Gary Bisson Subject: [PATCH 1/2] ARM: dts: imx6qdl-sabrelite: fix USB PHY reset Date: Mon, 24 Jul 2017 10:50:04 +0200 Message-Id: <20170724085005.22101-2-gary.bisson@boundarydevices.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170724085005.22101-1-gary.bisson@boundarydevices.com> References: <20170724085005.22101-1-gary.bisson@boundarydevices.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1595 Lines: 63 Declared as a regulator since the driver doesn't have a reset-gpios property for this. This ensures that the PHY is woken up, not depending on the state the second stage bootloader leaves the pin. This is a workaround until a proper mechanism is provided to reset such devices like the pwrseq library [1] for instance. [1] https://lkml.org/lkml/2017/2/10/779 Signed-off-by: Gary Bisson --- arch/arm/boot/dts/imx6qdl-sabrelite.dtsi | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm/boot/dts/imx6qdl-sabrelite.dtsi b/arch/arm/boot/dts/imx6qdl-sabrelite.dtsi index afe7449c47da..7bd14e23afb8 100644 --- a/arch/arm/boot/dts/imx6qdl-sabrelite.dtsi +++ b/arch/arm/boot/dts/imx6qdl-sabrelite.dtsi @@ -123,6 +123,19 @@ regulator-max-microvolt = <2800000>; regulator-always-on; }; + + reg_usb_h1_vbus: regulator@7 { + compatible = "regulator-fixed"; + reg = <7>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usbh1>; + regulator-name = "usb_h1_vbus"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&gpio7 12 GPIO_ACTIVE_HIGH>; + enable-active-high; + regulator-always-on; + }; }; mipi_xclk: mipi_xclk { @@ -610,6 +623,12 @@ >; }; + pinctrl_usbh1: usbh1grp { + fsl,pins = < + MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x030b0 + >; + }; + pinctrl_usbotg: usbotggrp { fsl,pins = < MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x17059 @@ -705,6 +724,7 @@ }; &usbh1 { + vbus-supply = <®_usb_h1_vbus>; status = "okay"; }; -- 2.11.0