From patchwork Mon Sep 12 21:53:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tim Harvey X-Patchwork-Id: 12974137 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EC040C6FA83 for ; Mon, 12 Sep 2022 21:54:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=9FQWyYdV7WEkcv8Cz9N7NpvaRPNJeYIjcokMUtZ9vx0=; b=yM41m4ctJr1OLk 1wjHYvE3FYH4xJ7kemil/0+tmxou8XH85KaMZl6t3rzfT9EG68294+CoHXUzVPUwIaiuuPneK9Yo3 MZy2XtZzUdE/vd67mq+Lhtrhc0smrPdgggpNQOmsHShLfi/oYEw36/1NVudV8Cd0O3NdhCpcfLzLW Wh/QKRJpGBmDNPlE8uB4kLx99gCNhgB0mPd9/y+HDiJ3D6N1m7+hiB9/h7jngMmLD4glQFmIu1daL UEO0r86a00rHSGK8tL6jGx6Bo+VWvhFJe2Wa5/mlnzWpcPnC4yPEYCu9wRqrhVKDpHxljxwUOE4t7 tzyn3hxix2PrEUdYipdw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oXrMr-00ENZq-C9; Mon, 12 Sep 2022 21:53:25 +0000 Received: from finn.gateworks.com ([108.161.129.64] helo=finn.localdomain) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oXrMo-00ENWs-AN for linux-arm-kernel@lists.infradead.org; Mon, 12 Sep 2022 21:53:23 +0000 Received: from 068-189-091-139.biz.spectrum.com ([68.189.91.139] helo=tharvey.pdc.gateworks.com) by finn.localdomain with esmtp (Exim 4.93) (envelope-from ) id 1oXrMf-00GaYO-Pq; Mon, 12 Sep 2022 21:53:13 +0000 From: Tim Harvey To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Cc: NXP Linux Team , Fabio Estevam , Pengutronix Kernel Team , Sascha Hauer , Shawn Guo , Krzysztof Kozlowski , Rob Herring , Tim Harvey Subject: [PATCH] ARM: dts: imx6qdl-gw52xx: add CAN regulator Date: Mon, 12 Sep 2022 14:53:12 -0700 Message-Id: <20220912215312.964722-1-tharvey@gateworks.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220912_145322_378898_D08F61F1 X-CRM114-Status: UNSURE ( 9.73 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The GW52xx has a tranceiver with a STBY pin connected to an IMX6 GPIO. Configure this as a regulator to drive it low when CAN is in use. Signed-off-by: Tim Harvey --- arch/arm/boot/dts/imx6qdl-gw52xx.dtsi | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi index b1df2beb2832..ec6b55bf77d9 100644 --- a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi +++ b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi @@ -137,6 +137,16 @@ reg_5p0v: regulator-5p0v { regulator-always-on; }; + reg_can1_stby: regulator-can1-stby { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_reg_can1>; + compatible = "regulator-fixed"; + regulator-name = "can1_stby"; + gpio = <&gpio1 9 GPIO_ACTIVE_LOW>; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + reg_usb_otg_vbus: regulator-usb-otg-vbus { compatible = "regulator-fixed"; regulator-name = "usb_otg_vbus"; @@ -170,6 +180,7 @@ &audmux { &can1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_flexcan1>; + xceiver-supply = <®_can1_stby>; status = "okay"; }; @@ -612,7 +623,6 @@ pinctrl_flexcan1: flexcan1grp { fsl,pins = < MX6QDL_PAD_KEY_ROW2__FLEXCAN1_RX 0x1b0b1 MX6QDL_PAD_KEY_COL2__FLEXCAN1_TX 0x1b0b1 - MX6QDL_PAD_GPIO_9__GPIO1_IO09 0x4001b0b0 /* CAN_STBY */ >; }; @@ -702,6 +712,12 @@ MX6QDL_PAD_SD1_CMD__PWM4_OUT 0x1b0b1 >; }; + pinctrl_reg_can1: regcan1grp { + fsl,pins = < + MX6QDL_PAD_GPIO_9__GPIO1_IO09 0x4001b0b0 /* CAN_STBY */ + >; + }; + pinctrl_uart1: uart1grp { fsl,pins = < MX6QDL_PAD_SD3_DAT7__UART1_TX_DATA 0x1b0b1