From patchwork Fri Oct 15 16:14:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amelie Delaunay X-Patchwork-Id: 12562431 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B39C6C433F5 for ; Fri, 15 Oct 2021 16:16:25 +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 7603061090 for ; Fri, 15 Oct 2021 16:16:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 7603061090 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=foss.st.com 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:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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=pgwt5QWNmXpUEfLkXivw7mujSEVk/NE21+q+pexb+xc=; b=iHWwJYVVRAh89Q KAkiYs7vRxUcvEzDXG47kiQPpy7chy+jHzpTyLwt/5q18QDrGTN7EJvk2k8VzMzTI1ITNELcmDSW8 exLKrgoAfjRcxN/YG5EENu+BhRrMmyFdRSljdrmk0tMH7xzG2GUg7fSJzxNBcI2cMPfEEIVfLRqyJ RzZA67KEkyLfGuGfyOS18zggZIdvRvxhfgxBQl/F0qekc28Z5+YkXO1DjLto2SPzlskXxl0LH5/af 2T9IJVfOMZMjpSA5iHk3u+IDHXPfon+n02m00CzD6TxcnBZ1dVkGh/E8juLjkWt6prwYNnwboCPGv xgSjsHHo4aSPlZmKnk2A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mbPrA-0081aw-Tb; Fri, 15 Oct 2021 16:14:53 +0000 Received: from mx08-00178001.pphosted.com ([91.207.212.93] helo=mx07-00178001.pphosted.com) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mbPr1-0081Yb-5s; Fri, 15 Oct 2021 16:14:44 +0000 Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 19FDksMV016875; Fri, 15 Oct 2021 18:14:38 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=selector1; bh=AZCLz9Qu7aCsRJuQKx+MRmvklKYmjkNGSFeQSH6HK7E=; b=V7QElrLBUwQPTbuoMIapayW59vQ5g7AC+5zqrySEBWPlux5L1NfY26cMoBiP4hiMCMPK kkdDgqe1hI3OtQGxnXy2n3xI+ijoLFVcGzAoLnWeWRpH8PlEoCnHRrsigL7Tv/WoUo7L IX1bY/0cXvax1Cx2Jtvs946Mz8oXa6ebK3+hTTcDlpMzn5x0NwiM05Kno94FggOQWp05 9e39diEaOySNaJxby1fFACLenP8w7ue+zrCozl5Ka8IukLXeSGsVs9kuf5Xj9j2SHNk4 OS6pqiGv/5m6hBVECKYGyLfii5GqrMO3p7d995nI0fRdq0dtKV5r0a/LrAfserY0Tx/1 tQ== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 3bqau2ru9g-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 15 Oct 2021 18:14:38 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id A7982100034; Fri, 15 Oct 2021 18:14:37 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag2node2.st.com [10.75.127.5]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id A095B231513; Fri, 15 Oct 2021 18:14:37 +0200 (CEST) Received: from localhost (10.75.127.48) by SFHDAG2NODE2.st.com (10.75.127.5) with Microsoft SMTP Server (TLS) id 15.0.1497.18; Fri, 15 Oct 2021 18:14:37 +0200 From: Amelie Delaunay To: Kishon Vijay Abraham I , Vinod Koul , Rob Herring , Alexandre Torgue , Maxime Coquelin CC: , , , , , Amelie Delaunay Subject: [PATCH v3 1/3] phy: stm32: restore utmi switch on resume Date: Fri, 15 Oct 2021 18:14:25 +0200 Message-ID: <20211015161427.220784-2-amelie.delaunay@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211015161427.220784-1-amelie.delaunay@foss.st.com> References: <20211015161427.220784-1-amelie.delaunay@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.48] X-ClientProxiedBy: SFHDAG1NODE2.st.com (10.75.127.2) To SFHDAG2NODE2.st.com (10.75.127.5) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.0.607.475 definitions=2021-10-15_05,2021-10-14_02,2020-04-07_01 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211015_091443_534585_22D6BB86 X-CRM114-Status: GOOD ( 18.14 ) 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 UTMI switch value can be lost during suspend/resume, depending on the power state reached. This patch adds resume function to usbphyc, to reconfigure utmi switch after suspend. Signed-off-by: Amelie Delaunay --- drivers/phy/st/phy-stm32-usbphyc.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/phy/st/phy-stm32-usbphyc.c b/drivers/phy/st/phy-stm32-usbphyc.c index 937a14fa7448..083593aea53a 100644 --- a/drivers/phy/st/phy-stm32-usbphyc.c +++ b/drivers/phy/st/phy-stm32-usbphyc.c @@ -598,6 +598,18 @@ static int stm32_usbphyc_remove(struct platform_device *pdev) return 0; } +static int __maybe_unused stm32_usbphyc_resume(struct device *dev) +{ + struct stm32_usbphyc *usbphyc = dev_get_drvdata(dev); + + if (usbphyc->switch_setup >= 0) + stm32_usbphyc_switch_setup(usbphyc, usbphyc->switch_setup); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(stm32_usbphyc_pm_ops, NULL, stm32_usbphyc_resume); + static const struct of_device_id stm32_usbphyc_of_match[] = { { .compatible = "st,stm32mp1-usbphyc", }, { }, @@ -610,6 +622,7 @@ static struct platform_driver stm32_usbphyc_driver = { .driver = { .of_match_table = stm32_usbphyc_of_match, .name = "stm32-usbphyc", + .pm = &stm32_usbphyc_pm_ops, } }; module_platform_driver(stm32_usbphyc_driver);