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 X-Spam-Level: X-Spam-Status: No, score=-16.9 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,UNPARSEABLE_RELAY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 5FC1FC47082 for ; Tue, 8 Jun 2021 08:11:05 +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 2BD9861285 for ; Tue, 8 Jun 2021 08:11:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2BD9861285 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@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=+gaF2bdsr0Lo/QfarcXUGKGYN2ISvKudxXDIG/NX0uI=; b=M7Wdn4gJyQUaMo DR8LrS2xBDu+5pxa4PN0S18tN8j8kqTSGTGOShd3l8wPlJ1vWyziLZw92HO+QrBE1elMEPuhrNeMu Gr5+0L3qEhB8n0Oc49SyTzH0QtMQzOSVmIYgov9NKAPLpa5pCiH0Y4YRHxla0Uv/Fall5JbsOONUw Vnbd/Il4/S3K7otrygnrc78/J2NxOfvYTUFkUoloe882AnKcOial7DlHTXR2Ipb/eBPxPRJEWk/KB /1hJCV8higTWmGGcojj+rrHO0HHJL63RRuquEfxqRpZC2tBqPDE+pDaAM8zeG6xCJLT9FDx47/S1C dupWVwGiP0s8i62MINpg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lqWnJ-006y2q-Pb; Tue, 08 Jun 2021 08:09:06 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1lqWmO-006xi4-C3; Tue, 08 Jun 2021 08:08:09 +0000 X-UUID: a6766072c11e42a9807626eb25fbe2cd-20210608 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=jLKGmZgohwojp8EevbSdsJnT/fjxIC0L0+mOt73Ouqs=; b=EJxT7BSezQ2W9+a3khdGAMvdiSxyW9WmkoFF3WkM/hze7+7HQU+At7pCB+i22yYealNQ8bNpMs2rZZFp3pqPlhBBeVUgWgVPUtDlFabvv3jSKeyhmrF2coefVzZulqS+6Gz1U8WtHXputEExdiUOoi6Z0X9qAnD2aj5jp6uvnRg=; X-UUID: a6766072c11e42a9807626eb25fbe2cd-20210608 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1606306885; Tue, 08 Jun 2021 01:08:04 -0700 Received: from mtkmbs05n2.mediatek.inc (172.21.101.140) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 8 Jun 2021 00:58:16 -0700 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs05n2.mediatek.inc (172.21.101.140) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 8 Jun 2021 15:58:14 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 8 Jun 2021 15:58:13 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Rob Herring , Felipe Balbi CC: Chunfeng Yun , Matthias Brugger , Thinh Nguyen , , , , , , Yuwen Ng , Eddie Hung Subject: [PATCH 20/23] usb: mtu3: add helper to power on/down device Date: Tue, 8 Jun 2021 15:57:46 +0800 Message-ID: <1623139069-8173-21-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1623139069-8173-1-git-send-email-chunfeng.yun@mediatek.com> References: <1623139069-8173-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210608_010808_449992_1E954F52 X-CRM114-Status: GOOD ( 11.93 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add helper to power on/down device ports and ip, it will be used when support device suspend/resume Signed-off-by: Chunfeng Yun --- drivers/usb/mtu3/mtu3_core.c | 36 ++++++++++++++++++++++++------------ 1 file changed, 24 insertions(+), 12 deletions(-) diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c index 6d23acb4fffc..648e970d77ba 100644 --- a/drivers/usb/mtu3/mtu3_core.c +++ b/drivers/usb/mtu3/mtu3_core.c @@ -141,6 +141,28 @@ static void mtu3_device_disable(struct mtu3 *mtu) mtu3_setbits(ibase, U3D_SSUSB_IP_PW_CTRL2, SSUSB_IP_DEV_PDN); } +static void mtu3_dev_power_on(struct mtu3 *mtu) +{ + void __iomem *ibase = mtu->ippc_base; + + mtu3_clrbits(ibase, U3D_SSUSB_IP_PW_CTRL2, SSUSB_IP_DEV_PDN); + if (mtu->is_u3_ip) + mtu3_clrbits(ibase, SSUSB_U3_CTRL(0), SSUSB_U3_PORT_PDN); + + mtu3_clrbits(ibase, SSUSB_U2_CTRL(0), SSUSB_U2_PORT_PDN); +} + +static void mtu3_dev_power_down(struct mtu3 *mtu) +{ + void __iomem *ibase = mtu->ippc_base; + + if (mtu->is_u3_ip) + mtu3_setbits(ibase, SSUSB_U3_CTRL(0), SSUSB_U3_PORT_PDN); + + mtu3_setbits(ibase, SSUSB_U2_CTRL(0), SSUSB_U2_PORT_PDN); + mtu3_setbits(ibase, U3D_SSUSB_IP_PW_CTRL2, SSUSB_IP_DEV_PDN); +} + /* reset U3D's device module. */ static void mtu3_device_reset(struct mtu3 *mtu) { @@ -333,12 +355,7 @@ void mtu3_start(struct mtu3 *mtu) dev_dbg(mtu->dev, "%s devctl 0x%x\n", __func__, mtu3_readl(mbase, U3D_DEVICE_CONTROL)); - mtu3_clrbits(mtu->ippc_base, U3D_SSUSB_IP_PW_CTRL2, SSUSB_IP_DEV_PDN); - if (mtu->is_u3_ip) - mtu3_clrbits(mtu->ippc_base, SSUSB_U3_CTRL(0), SSUSB_U3_PORT_PDN); - - mtu3_clrbits(mtu->ippc_base, SSUSB_U2_CTRL(0), SSUSB_U2_PORT_PDN); - + mtu3_dev_power_on(mtu); mtu3_csr_init(mtu); mtu3_set_speed(mtu, mtu->speed); @@ -360,12 +377,7 @@ void mtu3_stop(struct mtu3 *mtu) mtu3_dev_on_off(mtu, 0); mtu->is_active = 0; - - if (mtu->is_u3_ip) - mtu3_setbits(mtu->ippc_base, SSUSB_U3_CTRL(0), SSUSB_U3_PORT_PDN); - - mtu3_setbits(mtu->ippc_base, SSUSB_U2_CTRL(0), SSUSB_U2_PORT_PDN); - mtu3_setbits(mtu->ippc_base, U3D_SSUSB_IP_PW_CTRL2, SSUSB_IP_DEV_PDN); + mtu3_dev_power_down(mtu); } /* for non-ep0 */ -- 2.18.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel