From patchwork Wed May 22 10:00:44 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Gong X-Patchwork-Id: 10955497 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 AEA081390 for ; Wed, 22 May 2019 10:01:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A07FB28A4E for ; Wed, 22 May 2019 10:01:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 948FB28B58; Wed, 22 May 2019 10:01:29 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 30C4328B55 for ; 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Wed, 22 May 2019 10:00:44 +0000 Received: from VI1PR04MB4543.eurprd04.prod.outlook.com ([fe80::5062:df97:a70b:93f8]) by VI1PR04MB4543.eurprd04.prod.outlook.com ([fe80::5062:df97:a70b:93f8%7]) with mapi id 15.20.1900.020; Wed, 22 May 2019 10:00:44 +0000 From: Robin Gong To: "robh@kernel.org" , "broonie@kernel.org" , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "festevam@gmail.com" , "mark.rutland@arm.com" , "vkoul@kernel.org" , "dan.j.williams@intel.com" , "u.kleine-koenig@pengutronix.de" , "plyatov@gmail.com" , "catalin.marinas@arm.com" , "l.stach@pengutronix.de" CC: "linux-spi@vger.kernel.org" , dl-linux-imx , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "dmaengine@vger.kernel.org" , "devicetree@vger.kernel.org" , "kernel@pengutronix.de" Subject: [PATCH v4 11/14] dmaengine: imx-sdma: fix ecspi1 rx dma not work on i.mx8mm Thread-Topic: [PATCH v4 11/14] dmaengine: imx-sdma: fix ecspi1 rx dma not work on i.mx8mm Thread-Index: AQHVEIU4IH98ryzb1UOeRNgXW44V+w== Date: Wed, 22 May 2019 10:00:44 +0000 Message-ID: <1558548188-1155-12-git-send-email-yibin.gong@nxp.com> References: <1558548188-1155-1-git-send-email-yibin.gong@nxp.com> In-Reply-To: <1558548188-1155-1-git-send-email-yibin.gong@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.7.4 x-clientproxiedby: HK2PR04CA0045.apcprd04.prod.outlook.com (2603:1096:202:14::13) To VI1PR04MB4543.eurprd04.prod.outlook.com (2603:10a6:803:6d::26) authentication-results: spf=none (sender IP is ) smtp.mailfrom=yibin.gong@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [119.31.174.66] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: c6672de5-493b-4a81-8e9e-08d6de9c5ab1 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600141)(711020)(4605104)(4618075)(2017052603328)(7193020);SRVR:VI1PR04MB3149; x-ms-traffictypediagnostic: VI1PR04MB3149: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:6790; x-forefront-prvs: 0045236D47 x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(366004)(199004)(189003)(2501003)(446003)(11346002)(2616005)(186003)(68736007)(26005)(5660300002)(476003)(86362001)(71190400001)(50226002)(54906003)(110136005)(66066001)(76176011)(486006)(4326008)(7736002)(52116002)(2201001)(71200400001)(36756003)(6512007)(99286004)(7416002)(386003)(8676002)(6506007)(305945005)(53936002)(81166006)(66446008)(25786009)(64756008)(81156014)(6436002)(256004)(6486002)(102836004)(14454004)(73956011)(8936002)(498600001)(2906002)(66946007)(66476007)(14444005)(66556008)(6116002)(3846002)(921003)(1121003);DIR:OUT;SFP:1101;SCL:1;SRVR:VI1PR04MB3149;H:VI1PR04MB4543.eurprd04.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: Lox5lf8i5yrr0MExOBtUot/uxNgX0Se1LBH9bUCibN+0zveWqUR/Qwv2GXX90mxdAJyKJpyK4yhQDIWKwTtUMIMiEEccUaNJkTBBK7x7I+zHREVuiyjYmjKKMDxzFBjD2L/GV1rZF28Q4aN8d4BxR0FIe5GcEDjdgk+9F2Ku3M9wRq98HVJnE8KuZRMrp/R35J4milu/B80rB0w0PkGuUGjRezaFxKc4Jh1osz7dej+wATHR35dNpfn1NoO4R2DJUe+I3C6eGbZw/70uxorPgEMFPV+Ru3prFwL1EQgqm1AeTfRLOOg5pzALxfzmGMqIfUEZwmctg4pQzeA8vpNsL5QvSgVK4m7/vKacplweDqKQJ7yXZD7tHh3yGuLKSuK6RxbXkqbN3SCKJ9Lg+iKBffZoytm1/kH3nbMS1Fp101A= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: c6672de5-493b-4a81-8e9e-08d6de9c5ab1 X-MS-Exchange-CrossTenant-originalarrivaltime: 22 May 2019 10:00:44.5759 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB3149 Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Because the number of ecspi1 rx event on i.mx8mm is 0, the condition check ignore such special case without dma channel enabled, which caused ecspi1 rx works failed. Actually, no need to check event_id0/event_id1 and replace checking 'event_id1' with 'DMA_DEV_TO_DEV', so that configure event_id1 only in case DEV_TO_DEV. Signed-off-by: Robin Gong Acked-by: Vinod Koul --- drivers/dma/imx-sdma.c | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index a495c7f..b692783 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -1202,7 +1202,7 @@ static int sdma_config_channel(struct dma_chan *chan) if ((sdmac->peripheral_type != IMX_DMATYPE_MEMORY) && (sdmac->peripheral_type != IMX_DMATYPE_DSP)) { /* Handle multiple event channels differently */ - if (sdmac->event_id1) { + if (sdmac->direction == DMA_DEV_TO_DEV) { if (sdmac->peripheral_type == IMX_DMATYPE_ASRC_SP || sdmac->peripheral_type == IMX_DMATYPE_ASRC) sdma_set_watermarklevel_for_p2p(sdmac); @@ -1370,9 +1370,9 @@ static void sdma_free_chan_resources(struct dma_chan *chan) sdma_channel_synchronize(chan); - if (sdmac->event_id0) - sdma_event_disable(sdmac, sdmac->event_id0); - if (sdmac->event_id1) + sdma_event_disable(sdmac, sdmac->event_id0); + + if (sdmac->direction == DMA_DEV_TO_DEV) sdma_event_disable(sdmac, sdmac->event_id1); sdmac->event_id0 = 0; @@ -1670,13 +1670,11 @@ static int sdma_config(struct dma_chan *chan, memcpy(&sdmac->slave_config, dmaengine_cfg, sizeof(*dmaengine_cfg)); /* Set ENBLn earlier to make sure dma request triggered after that */ - if (sdmac->event_id0) { - if (sdmac->event_id0 >= sdmac->sdma->drvdata->num_events) - return -EINVAL; - sdma_event_enable(sdmac, sdmac->event_id0); - } + if (sdmac->event_id0 >= sdmac->sdma->drvdata->num_events) + return -EINVAL; + sdma_event_enable(sdmac, sdmac->event_id0); - if (sdmac->event_id1) { + if (sdmac->direction == DMA_DEV_TO_DEV) { if (sdmac->event_id1 >= sdmac->sdma->drvdata->num_events) return -EINVAL; sdma_event_enable(sdmac, sdmac->event_id1);