From patchwork Tue Jun 8 07:57:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?Q2h1bmZlbmcgWXVuICjkupHmmKXls7Ap?= X-Patchwork-Id: 12305601 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=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 E6FCAC47082 for ; Tue, 8 Jun 2021 08:01:01 +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 B40FE61285 for ; Tue, 8 Jun 2021 08:01:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B40FE61285 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=GyqE01KJ/tUWDy9pyAN91peiXNDjDFLpF/rLEufrkL4=; b=sKH2NAcnfTNs5b FcmTfz1Ke2vbePHfjStOQ6S8rXPJ82jMbekQuXXftnLMXa3zgUfcriyQn21IeWGP09xECA4M5SaJq Miuv3ttSHmAOz7nioYztyUQOVw0Dpqsi2BelmsSYpntSdZM+/mA8o4d/GAm0fNTzRd9A4NQD/sl+h mlCka0W+EeVN0Rygl5271yMJCH+MeOwoAArWF87Vop/Scv9qHIKCZCUNKCBcWK2uIPtnMSWgjx2Tc f/2fhcGaB9IFoLqIiaOHcr1DMj1hk7cG2tee4hmUQwl+ycWy8husL4OLBnikUI81a1+ifcCBDJwFt XTzNzitG2/hWWvRQyC4g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lqWdR-006trV-56; Tue, 08 Jun 2021 07:58:53 +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 1lqWch-006tWl-Ou; Tue, 08 Jun 2021 07:58:09 +0000 X-UUID: dd725a1b3f0d438aa705416858a72bd6-20210608 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=Hnx/nd/OD6UHAMozD6yOVjvhEG2eJG04fS9Nc3Rz+Po=; b=sfQv0AEhHOkG0lC2O4ZmCwbdsyhsotOfRAwwKaH1CYtUwD97U7+HZ2kJf2iHEnaie6FrF3DEol1dy/JaSR0AMbKiPh5Wl6ty4bTwsZfwa4K8SWtE/zFlPlw0ab24pix83PxK6n5lOlr4932VgyKAau/pMYmMLkcs81ZZdb4N2bI=; X-UUID: dd725a1b3f0d438aa705416858a72bd6-20210608 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 184846613; Tue, 08 Jun 2021 00:58:05 -0700 Received: from MTKMBS06N1.mediatek.inc (172.21.101.129) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 8 Jun 2021 00:58:04 -0700 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs06n1.mediatek.inc (172.21.101.129) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 8 Jun 2021 15:58:02 +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 15:58:01 +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 06/23] usb: mtu3: power down port when power down device IP Date: Tue, 8 Jun 2021 15:57:32 +0800 Message-ID: <1623139069-8173-7-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_005807_830486_7A55D238 X-CRM114-Status: UNSURE ( 9.78 ) 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 When power down device IP, we can also power down device port, then power on the port again when power on device ip, it's helpful to make device ip enter ip sleep mode. Signed-off-by: Chunfeng Yun --- drivers/usb/mtu3/mtu3_core.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c index e306b93c007d..562f4357831e 100644 --- a/drivers/usb/mtu3/mtu3_core.c +++ b/drivers/usb/mtu3/mtu3_core.c @@ -334,6 +334,10 @@ void mtu3_start(struct mtu3 *mtu) 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_csr_init(mtu); mtu3_set_speed(mtu, mtu->speed); @@ -356,6 +360,11 @@ 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); }