From mboxrd@z Thu Jan 1 00:00:00 1970 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 A911BC433EF for ; Fri, 15 Oct 2021 16:14:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8889E60551 for ; Fri, 15 Oct 2021 16:14:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241123AbhJOQQz (ORCPT ); Fri, 15 Oct 2021 12:16:55 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:48628 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S237230AbhJOQQz (ORCPT ); Fri, 15 Oct 2021 12:16:55 -0400 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 Content-Transfer-Encoding: 8bit Content-Type: text/plain 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 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.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); -- 2.25.1