From patchwork Mon Jun 10 08:17:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Gong X-Patchwork-Id: 10984277 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id ED32C1850 for ; Mon, 10 Jun 2019 08:17:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DC02A28843 for ; Mon, 10 Jun 2019 08:17:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CFD022884E; Mon, 10 Jun 2019 08:17:23 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7E4E628857 for ; Mon, 10 Jun 2019 08:17:23 +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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=ZRa8OpdExJkpKOTdQL++fjs+ROFrYtlUgxfussTIXM4=; b=UZZJSxZfZyoQVQPybZzacyFahs DD9W89U7SMfw2ctIndBRvW9tiIEPfhHRCheJEr0Cde8EaP2juw55fSRDj8fYue2ds9C2sx58WgtIR 2+4yVQvrUmgbtY7dKzC2VKEp5hBW/iNmzKNcXr8oTW25/S3+NCn/dAlTh+O2e8Shl8Te4LkBGgYNx oSKAPWwZOWcVzUpfi/nWFgmi5ebE3yjlqdsuTE1Xe+eaFCXel7NWDjVycQcbqa9XHVGRqgKDa7Wqk kp6aOZE15ytjWqkf+jmuR2LVPVu89H1ohIj9VvYN/FqS0TqjLU0y/I5nuPsEq1NFpn135kAPIsy5A dm/FmJ9g==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1haFUT-0005mE-5R; Mon, 10 Jun 2019 08:17:17 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1haFTe-000589-Gn for linux-arm-kernel@lists.infradead.org; Mon, 10 Jun 2019 08:16:27 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id CB7F9200738; Mon, 10 Jun 2019 10:16:24 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id C92BB200736; Mon, 10 Jun 2019 10:16:16 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 32A2E4031E; Mon, 10 Jun 2019 16:16:07 +0800 (SGT) From: yibin.gong@nxp.com To: robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, broonie@kernel.org, festevam@gmail.com, vkoul@kernel.org, dan.j.williams@intel.com, u.kleine-koenig@pengutronix.de, catalin.marinas@arm.com, l.stach@pengutronix.de, will.deacon@arm.com Subject: [PATCH v5 03/15] Revert "dmaengine: imx-sdma: refine to load context only once" Date: Mon, 10 Jun 2019 16:17:41 +0800 Message-Id: <20190610081753.11422-4-yibin.gong@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190610081753.11422-1-yibin.gong@nxp.com> References: <20190610081753.11422-1-yibin.gong@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190610_011626_696050_BF904488 X-CRM114-Status: UNSURE ( 7.10 ) X-CRM114-Notice: Please train this message. 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: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, linux-imx@nxp.com, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 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 From: Robin Gong This reverts commit ad0d92d7ba6aecbe2705907c38ff8d8be4da1e9c, because in spi-imx case, burst length may be changed dynamically. Signed-off-by: Robin Gong --- drivers/dma/imx-sdma.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index ca296f0..21db6b69 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -377,7 +377,6 @@ struct sdma_channel { unsigned long watermark_level; u32 shp_addr, per_addr; enum dma_status status; - bool context_loaded; struct imx_dma_data data; struct work_struct terminate_worker; }; @@ -988,9 +987,6 @@ static int sdma_load_context(struct sdma_channel *sdmac) int ret; unsigned long flags; - if (sdmac->context_loaded) - return 0; - if (sdmac->direction == DMA_DEV_TO_MEM) load_address = sdmac->pc_from_device; else if (sdmac->direction == DMA_DEV_TO_DEV) @@ -1033,8 +1029,6 @@ static int sdma_load_context(struct sdma_channel *sdmac) spin_unlock_irqrestore(&sdma->channel_0_lock, flags); - sdmac->context_loaded = true; - return ret; } @@ -1074,7 +1068,6 @@ static void sdma_channel_terminate_work(struct work_struct *work) sdmac->desc = NULL; spin_unlock_irqrestore(&sdmac->vc.lock, flags); vchan_dma_desc_free_list(&sdmac->vc, &head); - sdmac->context_loaded = false; } static int sdma_disable_channel_async(struct dma_chan *chan)