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=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 B683DC5CFFE for ; Mon, 10 Dec 2018 11:44:21 +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 846F620880 for ; Mon, 10 Dec 2018 11:44:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="GOdz/llu" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 846F620880 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-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.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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:In-Reply-To:References: List-Owner; bh=cOQWA6qGJnhPfLFP2ZG0pr+z9QfUTLLGo7NeO1pKQbc=; b=GOdz/lluER8unM ll2Q44HdMz2DSBZph2PH6xrXbRrpEYLMu1vAZQ96vZ4QoarQfhAp20qZ0qNSL/Od8zx+JCPdsd3d5 bQgQ/+ifrYbWcDaS6LtG3P6NEYyzF7cFep1blu9AzoTiXpsVaekHD0GHs2DDkQD4xIMB8WYerqdln 4lM7+cZoREOFkSSlULG1FZu0QoIVfJ/Nj+bx66zF282+1sOhuMPg4V0Tg8MJX0P49FzplnVLnxRNr PBvxLrKBHN7ReJsQ+q1J4ldkrjrvnLRE+9fPA43842ZgH+wqiGJou8TQgjPx1Hf76wtEtWeRg/JxI 1p7Zb0jBNcW985s5QHsA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gWJz1-0004gc-Ng; Mon, 10 Dec 2018 11:44:19 +0000 Received: from [210.61.82.183] (helo=mailgw01.mediatek.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gWJyx-0004f9-CR; Mon, 10 Dec 2018 11:44:17 +0000 X-UUID: 78d59e2f836d44699d08c7e812b31ef2-20181210 X-UUID: 78d59e2f836d44699d08c7e812b31ef2-20181210 Received: from mtkmrs01.mediatek.inc [(172.21.131.159)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1090352921; Mon, 10 Dec 2018 19:43:57 +0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 10 Dec 2018 19:43:56 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 10 Dec 2018 19:43:55 +0800 From: Jjian Zhou To: Ulf Hansson Subject: [PATCH v3] mmc: mediatek: Add MMC_CAP_SDIO_IRQ support Date: Mon, 10 Dec 2018 19:43:53 +0800 Message-ID: <1544442233-20303-1-git-send-email-jjian.zhou@mediatek.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181210_034415_674332_C1859859 X-CRM114-Status: GOOD ( 11.47 ) 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: linux-arm-kernel@lists.infradead.org, Ryder Lee , srv_heupstream@mediatek.com, Sean Wang , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Yong Mao , linux-mediatek@lists.infradead.org, Chaotian Jing , Matthias Brugger , jjian zhou Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: jjian zhou This patch enables support SDIO IRQs. It enables MMC_CAP_SDIO_IRQ & MMC_CAP2_SDIO_IRQ_NOTHREAD and implement the ->ack_sdio_irq callback. Signed-off-by: Jjian Zhou Signed-off-by: Chaotian Jing Signed-off-by: Yong Mao --- drivers/mmc/host/mtk-sd.c | 49 ++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 46 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c index 6334cc7..40a1848 100644 --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -1114,6 +1114,7 @@ static void msdc_start_command(struct msdc_host *host, struct mmc_request *mrq, struct mmc_command *cmd) { u32 rawcmd; + unsigned long flags; WARN_ON(host->cmd); host->cmd = cmd; @@ -1131,7 +1132,10 @@ static void msdc_start_command(struct msdc_host *host, cmd->error = 0; rawcmd = msdc_cmd_prepare_raw_cmd(host, mrq, cmd); + spin_lock_irqsave(&host->lock, flags); sdr_set_bits(host->base + MSDC_INTEN, cmd_ints_mask); + spin_unlock_irqrestore(&host->lock, flags); + writel(cmd->arg, host->base + SDC_ARG); writel(rawcmd, host->base + SDC_CMD); } @@ -1351,6 +1355,27 @@ static void msdc_request_timeout(struct work_struct *work) } } +static void msdc_enable_sdio_irq(struct mmc_host *mmc, int enb) +{ + unsigned long flags; + struct msdc_host *host = mmc_priv(mmc); + + if (enb) + pm_runtime_get_sync(host->dev); + + spin_lock_irqsave(&host->lock, flags); + if (enb) + sdr_set_bits(host->base + MSDC_INTEN, MSDC_INTEN_SDIOIRQ); + else + sdr_clr_bits(host->base + MSDC_INTEN, MSDC_INTEN_SDIOIRQ); + spin_unlock_irqrestore(&host->lock, flags); + + if (!enb) { + pm_runtime_mark_last_busy(host->dev); + pm_runtime_put_autosuspend(host->dev); + } +} + static irqreturn_t msdc_irq(int irq, void *dev_id) { struct msdc_host *host = (struct msdc_host *) dev_id; @@ -1373,7 +1398,12 @@ static irqreturn_t msdc_irq(int irq, void *dev_id) data = host->data; spin_unlock_irqrestore(&host->lock, flags); - if (!(events & event_mask)) + if ((events & event_mask) & MSDC_INT_SDIOIRQ) { + msdc_enable_sdio_irq(host->mmc, 0); + sdio_signal_irq(host->mmc); + } + + if (!(events & (event_mask & ~MSDC_INT_SDIOIRQ))) break; if (!mrq) { @@ -1493,8 +1523,11 @@ static void msdc_init_hw(struct msdc_host *host) */ sdr_set_bits(host->base + SDC_CFG, SDC_CFG_SDIO); - /* disable detect SDIO device interrupt function */ - sdr_clr_bits(host->base + SDC_CFG, SDC_CFG_SDIOIDE); + /* Config SDIO device detect interrupt function */ + if (host->mmc->caps & MMC_CAP_SDIO_IRQ) + sdr_set_bits(host->base + SDC_CFG, SDC_CFG_SDIOIDE); + else + sdr_clr_bits(host->base + SDC_CFG, SDC_CFG_SDIOIDE); /* Configure to default data timeout */ sdr_set_field(host->base + SDC_CFG, SDC_CFG_DTOC, 3); @@ -2013,6 +2046,11 @@ static void msdc_hw_reset(struct mmc_host *mmc) sdr_clr_bits(host->base + EMMC_IOCON, 1); } +static void msdc_ack_sdio_irq(struct mmc_host *mmc) +{ + msdc_enable_sdio_irq(mmc, 1); +} + static const struct mmc_host_ops mt_msdc_ops = { .post_req = msdc_post_req, .pre_req = msdc_pre_req, @@ -2020,6 +2058,8 @@ static void msdc_hw_reset(struct mmc_host *mmc) .set_ios = msdc_ops_set_ios, .get_ro = mmc_gpio_get_ro, .get_cd = mmc_gpio_get_cd, + .enable_sdio_irq = msdc_enable_sdio_irq, + .ack_sdio_irq = msdc_ack_sdio_irq, .start_signal_voltage_switch = msdc_ops_switch_volt, .card_busy = msdc_card_busy, .execute_tuning = msdc_execute_tuning, @@ -2147,6 +2187,9 @@ static int msdc_drv_probe(struct platform_device *pdev) else mmc->f_min = DIV_ROUND_UP(host->src_clk_freq, 4 * 4095); + if (mmc->caps & MMC_CAP_SDIO_IRQ) + mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD; + mmc->caps |= MMC_CAP_ERASE | MMC_CAP_CMD23; /* MMC core transfer sizes tunable parameters */ mmc->max_segs = MAX_BD_NUM; -- 1.9.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel