From patchwork Wed Feb 16 01:40:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jon Lin X-Patchwork-Id: 12747808 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 41B74C433F5 for ; Wed, 16 Feb 2022 01:42:17 +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:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id: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=AZLNSILtj6NtRVpx0WGKcdBjMfcRYcMIgU4ExS+We7g=; b=BGHb7uF9bI1fN4 1nUTKZlSAgkWJmSQW0YNpzL9NvXTIUBQuVB0ZkbVDu+ce2sLKkxBa0mYFO1te6I9xOZOPnZyLnDIi YS2RRPta+FEO6FsCXiZ63340Jkn2Z5npcxRkJK8/70vDvGQECfX2ekmDeLusFJ+C+bYQt/e/DiE3s x0gfbHtGLjC4/Y7oAn1Wz3fRQMmG0QFe/Y2vS7WN6FUm8tBD4xDzRQyUhB7WYL45GJMhGhXs7iieI np/XCR8lkI+gkhtt7fb4V1lJ22owi4gbl7TEV3CuMywPdgNFsGgsgZ7Nlv8UXn5KQFE/s/AsTXF+w +QRTWrou6xNZ0TaMAeYw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nK9JZ-005BBf-Lz; Wed, 16 Feb 2022 01:41:05 +0000 Received: from mail-m17640.qiye.163.com ([59.111.176.40]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nK9J6-005B0G-2p; Wed, 16 Feb 2022 01:40:37 +0000 Received: from localhost.localdomain (unknown [58.22.7.114]) by mail-m17640.qiye.163.com (Hmail) with ESMTPA id EA20B5401E7; Wed, 16 Feb 2022 09:40:33 +0800 (CST) From: Jon Lin To: broonie@kernel.org Cc: heiko@sntech.de, linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Jon Lin Subject: [PATCH v3 2/6] spi: rockchip: terminate dma transmission when slave abort Date: Wed, 16 Feb 2022 09:40:24 +0800 Message-Id: <20220216014028.8123-3-jon.lin@rock-chips.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220216014028.8123-1-jon.lin@rock-chips.com> References: <20220216014028.8123-1-jon.lin@rock-chips.com> X-HM-Spam-Status: e1kfGhgUHx5ZQUtXWQgPGg8OCBgUHx5ZQUlOS1dZCBgUCR5ZQVlLVUtZV1 kWDxoPAgseWUFZKDYvK1lXWShZQUhPN1dZLVlBSVdZDwkaFQgSH1lBWUJPTBpWHU0aSUxNThpDSh 4fVRMBExYaEhckFA4PWVdZFhoPEhUdFFlBWVVLWQY+ X-HM-Sender-Digest: e1kMHhlZQR0aFwgeV1kSHx4VD1lBWUc6PSI6Azo*Cz5IPBYRUQ0IGQ04 DjQaFBdVSlVKTU9PQkxOTUhPTU5IVTMWGhIXVREUFVUXEhU7CRQYEFYYExILCFUYFBZFWVdZEgtZ QVlOQ1VJSVVMVUpKT1lXWQgBWUFJSklDNwY+ X-HM-Tid: 0a7f003036d7d995kuwsea20b5401e7 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220215_174036_320950_3FFF5711 X-CRM114-Status: UNSURE ( 9.56 ) X-CRM114-Notice: Please train this message. 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: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org After slave abort, all DMA should be stopped, or it will affect the next transmission and maybe abort again. Signed-off-by: Jon Lin --- Changes in v3: None Changes in v2: - Fix patches should be at the start of the series - Delete useless messages Changes in v1: None drivers/spi/spi-rockchip.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c index 4f65ba3dd19c..c6a1bb09be05 100644 --- a/drivers/spi/spi-rockchip.c +++ b/drivers/spi/spi-rockchip.c @@ -585,6 +585,12 @@ static int rockchip_spi_slave_abort(struct spi_controller *ctlr) { struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); + if (atomic_read(&rs->state) & RXDMA) + dmaengine_terminate_sync(ctlr->dma_rx); + if (atomic_read(&rs->state) & TXDMA) + dmaengine_terminate_sync(ctlr->dma_tx); + atomic_set(&rs->state, 0); + spi_enable_chip(rs, false); rs->slave_abort = true; spi_finalize_current_transfer(ctlr);