[From nobody Thu Jun 25 05:54:41 2020 Received: from mail-db5eur01on0621.outbound.protection.outlook.com ([2a01:111:f400:fe02::621] helo=EUR01-DB5-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fQxrG-0002Nx-8v for openwrt-devel@lists.openwrt.org; Thu, 07 Jun 2018 16:33:55 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=darbyshire-bryant.me.uk; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=mbOHukwGfQyn179YXmSuZdng33UemW9gUXsuHxJgwQY=; b=FzPeO/NGtugVCobge323ktZpxUslsGseHRwD0WzzTpeupsmzq0FQFe4nbXUXmSddc7OLwD8ofu/ATng1z9WB1MQoikoOzoXjUKUT+YPndreUfKnwrPke/LLgLQxaiiaDk2DfNevoUK7ja7p7CJgDS9Xvn9SQKj5aVZOUFkInO3E= Received: from Kevins-MBP.lan.darbyshire-bryant.me.uk (151.224.33.36) by VI1PR07MB4255.eurprd07.prod.outlook.com (2603:10a6:802:65::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.841.7; Thu, 7 Jun 2018 16:33:38 +0000 From: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk> To: openwrt-devel@lists.openwrt.org Cc: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk> Subject: [PATCH] ramips: mir3g dts define usb port Vcc volt regulator GPIO Date: Thu, 7 Jun 2018 17:33:34 +0100 Message-Id: <20180607163334.31253-1-ldir@darbyshire-bryant.me.uk> X-Mailer: git-send-email 2.15.1 (Apple Git-101) MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [151.224.33.36] X-ClientProxiedBy: LO2P265CA0138.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:9f::30) To VI1PR07MB4255.eurprd07.prod.outlook.com (2603:10a6:802:65::20) X-MS-PublicTrafficType: Email X-Microsoft-Antispam: UriScan:; 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X-Spam-Score: -0.1 (/) X-Spam-Report: SpamAssassin version 3.4.1 on bombadil.infradead.org summary: Content analysis details: (-0.1 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [2a01:111:f400:fe02:0:0:0:621 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid Define USB port power on/off GPO as voltage regulator type instead of exposing as a normal GPIO. The GPO is now controlled by the USB driver via the voltage regulator definition. The regulator is of fixed output type (5V for USB) hence the GPO switches power on/off to USB pin 1 (Vcc) USB port power is enabled on driver load and disabled on driver unload. Enable kernel support for fixed voltage regulator types on mt7621. Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk> --- target/linux/ramips/dts/MIR3G.dts | 21 ++++++++++++--------- target/linux/ramips/mt7621/config-4.14 | 2 ++ 2 files changed, 14 insertions(+), 9 deletions(-) diff --git a/target/linux/ramips/dts/MIR3G.dts b/target/linux/ramips/dts/MIR3G.dts index efe98b0e10..44dfc1796c 100644 --- a/target/linux/ramips/dts/MIR3G.dts +++ b/target/linux/ramips/dts/MIR3G.dts @@ -66,16 +66,19 @@ }; }; - gpio_export { - compatible = "gpio-export"; - #size-cells = <0>; - - usbpower { - gpio-export,name = "usbpower"; - gpio-export,output = <1>; - gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>; - }; + reg_usb_vbus: reg_usb_vbus { + compatible = "regulator-fixed"; + regulator-name = "usb_vbus"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + gpio = <&gpio0 12 GPIO_ACTIVE_HIGH>; + enable-active-high; }; + +}; + +&xhci { + vbus-supply = <&reg_usb_vbus>; }; &nand { diff --git a/target/linux/ramips/mt7621/config-4.14 b/target/linux/ramips/mt7621/config-4.14 index 3a5cd4296a..c19d735e5c 100644 --- a/target/linux/ramips/mt7621/config-4.14 +++ b/target/linux/ramips/mt7621/config-4.14 @@ -227,6 +227,8 @@ CONFIG_RCU_STALL_COMMON=y CONFIG_REGMAP=y CONFIG_REGMAP_I2C=y CONFIG_REGMAP_SPI=y +CONFIG_REGULATOR=y +CONFIG_REGULATOR_FIXED_VOLTAGE=y CONFIG_RESET_CONTROLLER=y CONFIG_RFS_ACCEL=y CONFIG_RPS=y -- 2.15.1 (Apple Git-101) ]