From patchwork Mon May 23 09:04:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chunfeng Yun X-Patchwork-Id: 12858762 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 1B98EC433EF for ; Mon, 23 May 2022 10:26:38 +0000 (UTC) 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=wWv1Dc0JTzg5xJv0UVXNWjU5UNqQoV6nh3+TR1nwItM=; b=ZjNG9JVEs5hZvC vgGBn/kmkZst/SqZvrOMG18NNrajPvuQpxIxXMHhwWGJ9oBTTkkEDKHiPl/nl9ZyyQ8LirVYuhzPg 4GHJBVF4bOxGKTYTD1Yj0TNbZz+ncdzkrw+LoTMl94EArLBOuTfLg2uTmYqEcpt3xKu2SmefK6U6Z P/I6OkNuLlrzjT4K+sfX7nfZYG/96Reh0FsQIDDG8StE/QTnm6YxDOZAUPsT+G6x2pMtkzG1P2ewQ IZ3dBb1gKj+6dbxMNLKHowILafP0kNQ3g1OsLK7n8vHmdo9NrnlsNVAiqHxw1lp8TiU1jHHsIfFYJ xuLOgArg7SZFLC99Zb1w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nt5Fe-003Djr-28; Mon, 23 May 2022 10:25:26 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nt45d-002jVR-N9; Mon, 23 May 2022 09:11:03 +0000 X-UUID: 115a0d2fcf7845c7b092a92326ed623b-20220523 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.5, REQID:5f60b574-2258-41cd-83ed-151d26031bc8, OB:0, LO B:0,IP:0,URL:5,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,ACTI ON:release,TS:5 X-CID-META: VersionHash:2a19b09, CLOUDID:74fb36e3-edbf-4bd4-8a34-dfc5f7bb086d, C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,IP:nil,URL:1,File:nil ,QS:0,BEC:nil X-UUID: 115a0d2fcf7845c7b092a92326ed623b-20220523 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1141963159; Mon, 23 May 2022 02:10:54 -0700 Received: from mtkmbs10n1.mediatek.inc (172.21.101.34) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 23 May 2022 02:04:56 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Mon, 23 May 2022 17:04:55 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Mon, 23 May 2022 17:04:54 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Rob Herring CC: Chunfeng Yun , Krzysztof Kozlowski , Matthias Brugger , "Mathias Nyman" , , , , , , Eddie Hung Subject: [PATCH 4/4] usb: mtu3: add support controller reset Date: Mon, 23 May 2022 17:04:49 +0800 Message-ID: <20220523090449.14430-4-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220523090449.14430-1-chunfeng.yun@mediatek.com> References: <20220523090449.14430-1-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-20220523_021101_829079_8C070088 X-CRM114-Status: GOOD ( 13.06 ) 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 Add support controller reset via a reset-controller usually in infracfg, it's different with the software reset by IPPC which only used to reset MAC, and it will also reset IPPC meanwhile. Signed-off-by: Chunfeng Yun Reviewed-by: AngeloGioacchino Del Regno --- drivers/usb/mtu3/mtu3_plat.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c index 4309ed939178..d14494b30064 100644 --- a/drivers/usb/mtu3/mtu3_plat.c +++ b/drivers/usb/mtu3/mtu3_plat.c @@ -13,6 +13,7 @@ #include #include #include +#include #include "mtu3.h" #include "mtu3_dr.h" @@ -345,6 +346,12 @@ static int mtu3_probe(struct platform_device *pdev) dev_info(dev, "wakeup irq %d\n", ssusb->wakeup_irq); } + ret = device_reset_optional(dev); + if (ret) { + dev_err_probe(dev, ret, "failed to reset controller\n"); + goto comm_exit; + } + ssusb_ip_sw_reset(ssusb); if (IS_ENABLED(CONFIG_USB_MTU3_HOST))