From patchwork Tue Apr 11 10:20:56 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jisheng Zhang X-Patchwork-Id: 9674881 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C1E6E600CB for ; Tue, 11 Apr 2017 10:26:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C247828450 for ; Tue, 11 Apr 2017 10:26:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B6F9B28548; Tue, 11 Apr 2017 10:26:05 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 3E0CC28450 for ; Tue, 11 Apr 2017 10:26:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.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=8pTItMXjKzbLpT1XLnWrpOG6Kl+ECyGAw0l0+hL/aIU=; b=ZvLokljvXtIEC8 J/EmTEvfJQIBdBMCR8BZltQwfMjc5zgdZvZl45Xp+2l2QNayjXz3Y08VDhileTaVUwM5F4VRMbUK7 ffGzsfAGPETwSdzC0H41DYuFfFy9o9sTVUVHiojkPbCxWGd/2ukFo29qCQZhGy2OH0FTMwfNGJqen U22ulRX1BqeRcjoPKvTjXm1Q5uxkEgKHAdWSiBHc4wYONaM9uM633WlzTJHHJQYh4rYBP5nt+CWyx x+XYMvb/WkEa5yo07uJ65Gej0HQHtZsmC6E7cTEdmRCkHW0ZT04nk9F86sGcG3CT3/uk/PckSD6+e PVUa4T2nWA2DSMZV+XEg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cxszr-0000j2-Q7; Tue, 11 Apr 2017 10:26:03 +0000 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174] helo=mx0b-0016f401.pphosted.com) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cxszo-0000ga-70 for linux-arm-kernel@lists.infradead.org; Tue, 11 Apr 2017 10:26:01 +0000 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v3BAJbRc003554; Tue, 11 Apr 2017 03:25:37 -0700 Received: from sc-exch02.marvell.com ([199.233.58.182]) by mx0a-0016f401.pphosted.com with ESMTP id 29pw7kf26h-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Tue, 11 Apr 2017 03:25:37 -0700 Received: from SC-EXCH02.marvell.com (10.93.176.82) by SC-EXCH02.marvell.com (10.93.176.82) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Tue, 11 Apr 2017 03:25:36 -0700 Received: from maili.marvell.com (10.93.176.43) by SC-EXCH02.marvell.com (10.93.176.82) with Microsoft SMTP Server id 15.0.1210.3 via Frontend Transport; Tue, 11 Apr 2017 03:25:36 -0700 Received: from xhacker.marvell.com (unknown [10.37.130.129]) by maili.marvell.com (Postfix) with ESMTP id A84FC3F703F; Tue, 11 Apr 2017 03:25:34 -0700 (PDT) From: Jisheng Zhang To: , Subject: [PATCH 2/2] mmc: sdhci: provide isr for card-detect interrupts Date: Tue, 11 Apr 2017 18:20:56 +0800 Message-ID: <20170411102056.2869-3-jszhang@marvell.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170411102056.2869-1-jszhang@marvell.com> References: <20170411102056.2869-1-jszhang@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-04-11_08:, , signatures=0 X-Proofpoint-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1702020001 definitions=main-1704110085 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170411_032600_267452_136A1C04 X-CRM114-Status: UNSURE ( 9.38 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jisheng Zhang , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, 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 X-Virus-Scanned: ClamAV using ClamSMTP We found one issue on BG4CT platforms with GPIO for sdcar card detect interrupt: remove sdcard when there's read write access to the sdcard, sometimes the card remove event can't be handled for a long time, so the system still think the sdcard is still plugged in. It turns out that the sdhci_card_event() is missing in common slot gpio's card detect isr. We fix this issue by providing sdhci's own isr for card-detect interrupts. In this own isr, we call sdhci_card_event() then process the change of state. Signed-off-by: Jisheng Zhang --- drivers/mmc/host/sdhci.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 63bc33a54d0d..b6c5021a5892 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2777,6 +2777,16 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id) return result; } +static irqreturn_t sdhci_cd_irq(int irq, void *dev_id) +{ + struct mmc_host *mmc = dev_id; + struct sdhci_host *host = mmc_priv(mmc); + + mmc->ops->card_event(mmc); + mmc_detect_change(host->mmc, msecs_to_jiffies(200)); + return IRQ_HANDLED; +} + static irqreturn_t sdhci_thread_irq(int irq, void *dev_id) { struct sdhci_host *host = dev_id; @@ -3617,6 +3627,8 @@ int __sdhci_add_host(struct sdhci_host *host) sdhci_init(host, 0); + mmc_gpio_set_cd_isr(mmc, sdhci_cd_irq); + ret = request_threaded_irq(host->irq, sdhci_irq, sdhci_thread_irq, IRQF_SHARED, mmc_hostname(mmc), host); if (ret) {