From patchwork Mon Jul 27 07:14:53 2020 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: 11686473 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 021721392 for ; Mon, 27 Jul 2020 07:28:32 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 CEAAE2070B for ; Mon, 27 Jul 2020 07:28:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="uk6b7fts"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="V7YgE5Ne" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CEAAE2070B 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+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=DczALYvi53E9Q88b0pF0qydJ26MukrGFZtV5bHGxoY0=; b=uk6b7fts5F3DZmm5hANtFdbkI Fh720q3/qePEqjxIOnnXKkc/miANpq13zT1eQDkIqgKpcNs5d69u7F+0psXngGbI5RAnCzqKAdDy0 g7ia4WW7p97D0GGNJGXpNwYcgJ4XpBg/9SNLpunSjEY8h604Y5yXViUE5mMa56kulZbymlKfxQZcE TExQa2N7deTP6mTWMR3kwKpCOLHBiooNdtYDc0iVXy7g4tn4Nff8GYAlhsIWUGyWaIwwsdsl6Q+BI PzBCXjXGWhsUlzh4SjnX2aT/SoayAhJL/F5LjPurhbtjmnbeJQyZrL0jSFoPxHjJUzjRGTimJdXYb qUzGeP8TA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jzxXF-0001Lm-OI; Mon, 27 Jul 2020 07:26:57 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jzxX0-0001F3-Fc; Mon, 27 Jul 2020 07:26:45 +0000 X-UUID: 6ee2e966a14245c8971aa2c81d40cb7b-20200726 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=x6c9apllsraX6rv/6S+rjbkHnvqPnQsJAwjR+kPcEbE=; b=V7YgE5NepMNABOjRneQAGmqaJSLYTMzm9BCgDDnyMqx9bR2AD/ji6+nD1PaHqdgIz81g6YamgS897siqayAtWJ6j3sA3D7iKRrYchh0d9E5IXBDWXcBQ+gg9/ZH4bLt0OPOHzndTJE1NG8Ksupou6c9tQyqPYgisckqau+6sLuM=; X-UUID: 6ee2e966a14245c8971aa2c81d40cb7b-20200726 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1529744953; Sun, 26 Jul 2020 23:26:45 -0800 Received: from mtkmbs08n2.mediatek.inc (172.21.101.56) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 27 Jul 2020 00:16:36 -0700 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs08n2.mediatek.inc (172.21.101.56) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 27 Jul 2020 15:16:35 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 27 Jul 2020 15:16:35 +0800 From: Chunfeng Yun To: Felipe Balbi , Greg Kroah-Hartman Subject: [PATCH 04/11] usb: mtu3: clear interrupts status when disable interrupts Date: Mon, 27 Jul 2020 15:14:53 +0800 Message-ID: <1595834101-13094-4-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1595834101-13094-1-git-send-email-chunfeng.yun@mediatek.com> References: <1595834101-13094-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: A8C7A88285639417D4FD77E1C46961D26AEA72226E43EB7A31F8065F0DED3D7E2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200727_032642_700920_13751C62 X-CRM114-Status: UNSURE ( 9.76 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eddie Hung , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Chunfeng Yun , linux-mediatek@lists.infradead.org, Matthias Brugger , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org When disable interrupts, will also want to clear their status, ensure it by calling mtu3_intr_status_clear() in mtu3_intr_disable(). Signed-off-by: Chunfeng Yun --- drivers/usb/mtu3/mtu3_core.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c index f3ad1cc..ece5b3e 100644 --- a/drivers/usb/mtu3/mtu3_core.c +++ b/drivers/usb/mtu3/mtu3_core.c @@ -147,17 +147,6 @@ static void mtu3_device_reset(struct mtu3 *mtu) mtu3_clrbits(ibase, U3D_SSUSB_DEV_RST_CTRL, SSUSB_DEV_SW_RST); } -/* disable all interrupts */ -static void mtu3_intr_disable(struct mtu3 *mtu) -{ - void __iomem *mbase = mtu->mac_base; - - /* Disable level 1 interrupts */ - mtu3_writel(mbase, U3D_LV1IECR, ~0x0); - /* Disable endpoint interrupts */ - mtu3_writel(mbase, U3D_EPIECR, ~0x0); -} - static void mtu3_intr_status_clear(struct mtu3 *mtu) { void __iomem *mbase = mtu->mac_base; @@ -170,6 +159,18 @@ static void mtu3_intr_status_clear(struct mtu3 *mtu) mtu3_writel(mbase, U3D_LTSSM_INTR, ~0x0); /* Clear speed change interrupt status */ mtu3_writel(mbase, U3D_DEV_LINK_INTR, ~0x0); + /* Clear QMU interrupt status */ + mtu3_writel(mbase, U3D_QISAR0, ~0x0); +} + +/* disable all interrupts */ +static void mtu3_intr_disable(struct mtu3 *mtu) +{ + /* Disable level 1 interrupts */ + mtu3_writel(mtu->mac_base, U3D_LV1IECR, ~0x0); + /* Disable endpoint interrupts */ + mtu3_writel(mtu->mac_base, U3D_EPIECR, ~0x0); + mtu3_intr_status_clear(mtu); } /* enable system global interrupt */ @@ -312,7 +313,6 @@ void mtu3_stop(struct mtu3 *mtu) dev_dbg(mtu->dev, "%s\n", __func__); mtu3_intr_disable(mtu); - mtu3_intr_status_clear(mtu); if (mtu->softconnect) mtu3_dev_on_off(mtu, 0); @@ -600,7 +600,6 @@ static void mtu3_regs_init(struct mtu3 *mtu) /* be sure interrupts are disabled before registration of ISR */ mtu3_intr_disable(mtu); - mtu3_intr_status_clear(mtu); mtu3_csr_init(mtu);