linux-kernel - [PATCH v7 8/8] ARM: dts: imx6q-evi: Fix onboard hub reset line

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Date:   Tue, 20 Sep 2016 11:36:47 +0800
From:   Peter Chen <peter.chen@....com>
To:     <gregkh@...uxfoundation.org>, <stern@...land.harvard.edu>,
        <ulf.hansson@...aro.org>, <broonie@...nel.org>, <sre@...nel.org>,
        <robh+dt@...nel.org>, <shawnguo@...nel.org>,
        <dbaryshkov@...il.com>, <dwmw3@...radead.org>
CC:     <k.kozlowski@...sung.com>, <linux-arm-kernel@...ts.infradead.org>,
        <p.zabel@...gutronix.de>, <devicetree@...r.kernel.org>,
        <pawel.moll@....com>, <mark.rutland@....com>,
        <linux-usb@...r.kernel.org>, <arnd@...db.de>,
        <s.hauer@...gutronix.de>, <mail@...iej.szmigiero.name>,
        <troy.kisky@...ndarydevices.com>, <festevam@...il.com>,
        <oscar@...andei.net>, <stephen.boyd@...aro.org>,
        <linux-pm@...r.kernel.org>, <stillcompiling@...il.com>,
        <linux-kernel@...r.kernel.org>, <mka@...omium.org>,
        <vaibhav.hiremath@...aro.org>, Peter Chen <peter.chen@....com>
Subject: [PATCH v7 8/8] ARM: dts: imx6q-evi: Fix onboard hub reset line

From: Joshua Clayton <stillcompiling@...il.com>

Previously the onboard hub was made to work by treating its
reset gpio as a regulator enable.
Get rid of that kludge now that pwseq has added reset gpio support
Move pin muxing the hub reset pin into the usbh1 group

Signed-off-by: Joshua Clayton <stillcompiling@...il.com>
Signed-off-by: Peter Chen <peter.chen@....com>
---
 arch/arm/boot/dts/imx6q-evi.dts | 25 +++++++------------------
 1 file changed, 7 insertions(+), 18 deletions(-)

diff --git a/arch/arm/boot/dts/imx6q-evi.dts b/arch/arm/boot/dts/imx6q-evi.dts
index 4fa5601..49c6f61 100644
--- a/arch/arm/boot/dts/imx6q-evi.dts
+++ b/arch/arm/boot/dts/imx6q-evi.dts
@@ -54,18 +54,6 @@
 		reg = <0x10000000 0x40000000>;
 	};
 
-	reg_usbh1_vbus: regulator-usbhubreset {
-		compatible = "regulator-fixed";
-		regulator-name = "usbh1_vbus";
-		regulator-min-microvolt = <5000000>;
-		regulator-max-microvolt = <5000000>;
-		enable-active-high;
-		startup-delay-us = <2>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_usbh1_hubreset>;
-		gpio = <&gpio7 12 GPIO_ACTIVE_HIGH>;
-	};
-
 	reg_usb_otg_vbus: regulator-usbotgvbus {
 		compatible = "regulator-fixed";
 		regulator-name = "usb_otg_vbus";
@@ -204,12 +192,18 @@
 };
 
 &usbh1 {
-	vbus-supply = <&reg_usbh1_vbus>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usbh1>;
 	dr_mode = "host";
 	disable-over-current;
 	status = "okay";
+
+	usb2415host: hub@1 {
+		compatible = "usb424,2513";
+		reg = <1>;
+		reset-gpios = <&gpio7 12 GPIO_ACTIVE_LOW>;
+		reset-duration-us = <3000>;
+	};
 };
 
 &usbotg {
@@ -467,11 +461,6 @@
 			MX6QDL_PAD_GPIO_3__USB_H1_OC 0x1b0b0
 			/* usbh1_b OC */
 			MX6QDL_PAD_GPIO_0__GPIO1_IO00 0x1b0b0
-		>;
-	};
-
-	pinctrl_usbh1_hubreset: usbh1hubresetgrp {
-		fsl,pins = <
 			MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x1b0b0
 		>;
 	};
-- 
2.7.4