From patchwork Mon Sep 13 13:57:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Kepplinger X-Patchwork-Id: 12489485 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1DCB0C433EF for ; Mon, 13 Sep 2021 13:59:53 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id DE12D61A09 for ; Mon, 13 Sep 2021 13:59:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org DE12D61A09 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=puri.sm Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org 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:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: 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: List-Owner; bh=ddG/4Aczv9lST/k2N3UMXgfExrHA04BZx/Owx1y5Yo0=; b=BD/EhFmBxEVbYr VJhZbFBSdrS4qlPt5vpFjGtS3WKO2D8v8MBkWSK61owZc2RcrxyEzg4BPIJmvNaF9/6PzaecVZ+KN Ph7XOOfLEp65VKU0X3ozGtpc+l7UWT32RpgMU0yuNmPvPBi25do2u/aAewIyx9rL8ZbzAOx+815NK A/v3UW89qWloNUC+Lm5DCDv1PWrp8Ct5Arh1x72117Wrv1HDCpNOeLVOEwa2QLLFTdhMRIsNvExPh 49DGu2wZcY4jPmeKmCLH4WCWG1BHVlc+Vc5+/J7Jo1zOmt66FqNpjGbn0e6Ue8lG6spNTNMNZkPRc qBYe2L7i/o+g1x3TtsTw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mPmTg-001x1X-O4; Mon, 13 Sep 2021 13:58:32 +0000 Received: from comms.puri.sm ([159.203.221.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mPmSq-001wN0-45 for linux-arm-kernel@lists.infradead.org; Mon, 13 Sep 2021 13:57:43 +0000 Received: from localhost (localhost [127.0.0.1]) by comms.puri.sm (Postfix) with ESMTP id E0720E129E; Mon, 13 Sep 2021 06:57:39 -0700 (PDT) Received: from comms.puri.sm ([127.0.0.1]) by localhost (comms.puri.sm [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id looLM0Jr5CNu; Mon, 13 Sep 2021 06:57:39 -0700 (PDT) From: Martin Kepplinger To: robh@kernel.org, shawnguo@kernel.org, kernel@pengutronix.de, festevam@gmail.com Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org, kernel@puri.sm, Angus Ainslie , Martin Kepplinger Subject: [PATCH v1 5/6] arm64: dts: imx8mq-librem5: add power sequencing for M.2 cards Date: Mon, 13 Sep 2021 15:57:05 +0200 Message-Id: <20210913135706.309685-6-martin.kepplinger@puri.sm> In-Reply-To: <20210913135706.309685-1-martin.kepplinger@puri.sm> References: <20210913135706.309685-1-martin.kepplinger@puri.sm> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210913_065740_229698_C385DAB0 X-CRM114-Status: UNSURE ( 9.76 ) 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: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Angus Ainslie Some wifi cards need reset asserted until after the power supplies have been enabled. So wire up the W_DISABLE signal for the SDIO port (WIFI_REG_ON net) and the BT_REG_ON net to use it for power sequencing. Signed-off-by: Angus Ainslie Signed-off-by: Martin Kepplinger --- .../boot/dts/freescale/imx8mq-librem5.dtsi | 23 +++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi index e5fdb50557f2..65c86fbbd6d1 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi @@ -199,6 +199,14 @@ simple-audio-card,codec { }; }; + usdhc2_pwrseq: pwrseq { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_bt>, <&pinctrl_wifi_disable>; + compatible = "mmc-pwrseq-simple"; + reset-gpios = <&gpio3 25 GPIO_ACTIVE_HIGH>, + <&gpio4 29 GPIO_ACTIVE_HIGH>; + }; + bm818_codec: sound-wwan-codec { compatible = "broadmobi,bm818", "option,gtm601"; #sound-dai-cells = <0>; @@ -313,6 +321,13 @@ MX8MQ_IOMUXC_NAND_DQS_GPIO3_IO14 0x83 >; }; + pinctrl_bt: btgrp { + fsl,pins = < + /* BT_REG_ON */ + MX8MQ_IOMUXC_SAI5_MCLK_GPIO3_IO25 0x83 + >; + }; + pinctrl_charger_in: chargeringrp { fsl,pins = < /* CHRG_INT */ @@ -644,6 +659,13 @@ MX8MQ_IOMUXC_SD2_RESET_B_USDHC2_RESET_B 0xc1 >; }; + pinctrl_wifi_disable: wifidisablegrp { + fsl,pins = < + /* WIFI_REG_ON */ + MX8MQ_IOMUXC_SAI3_RXC_GPIO4_IO29 0x83 + >; + }; + pinctrl_wifi_pwr: wifipwrgrp { fsl,pins = < /* WIFI3V3_EN */ @@ -1213,6 +1235,7 @@ &usdhc2 { pinctrl-2 = <&pinctrl_usdhc2_200mhz>; bus-width = <4>; vmmc-supply = <®_wifi_3v3>; + mmc-pwrseq = <&usdhc2_pwrseq>; post-power-on-delay-ms = <1000>; cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>; disable-wp;