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Wed, 14 Jul 2021 02:04:46 +0000 From: Robin Gong To: vkoul@kernel.org, mark.rutland@arm.com, broonie@kernel.org, robh+dt@kernel.org, catalin.marinas@arm.com, will.deacon@arm.com, shawnguo@kernel.org, festevam@gmail.com, s.hauer@pengutronix.de, martin.fuzzey@flowbird.group, u.kleine-koenig@pengutronix.de, dan.j.williams@intel.com, matthias.schiffer@ew.tq-group.com, frieder.schrempf@kontron.de, m.felsch@pengutronix.de, l.stach@pengutronix.de, xiaoning.wang@nxp.com Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, linux-imx@nxp.com, kernel@pengutronix.de, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v16 03/12] Revert "dmaengine: imx-sdma: refine to load context only once" Date: Wed, 14 Jul 2021 18:20:43 +0800 Message-Id: <1626258052-22198-4-git-send-email-yibin.gong@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1626258052-22198-1-git-send-email-yibin.gong@nxp.com> References: <1626258052-22198-1-git-send-email-yibin.gong@nxp.com> X-ClientProxiedBy: SG2PR02CA0016.apcprd02.prod.outlook.com (2603:1096:3:17::28) To VE1PR04MB6688.eurprd04.prod.outlook.com (2603:10a6:803:127::25) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from robin-OptiPlex-790.ap.freescale.net (119.31.174.66) by SG2PR02CA0016.apcprd02.prod.outlook.com (2603:1096:3:17::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.4331.21 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 833ae4e0-22c1-4c4d-55f3-08d9466bc11b X-MS-Exchange-CrossTenant-AuthSource: VE1PR04MB6688.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Jul 2021 02:04:46.7353 (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-CrossTenant-UserPrincipalName: cwP9sr/mIEZrLjRUy/LxOQZse+GDDd8ahiXli7SOa7s7wvLoxKEMr8QqiQZFVvBqh0hYlv9EocQSDWupeFHxOQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB4175 Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org This reverts commit ad0d92d7ba6aecbe2705907c38ff8d8be4da1e9c, because in spi-imx case, burst length may be changed dynamically. Fixes: ad0d92d7ba6a ("dmaengine: imx-sdma: refine to load context only once") Cc: Signed-off-by: Robin Gong Acked-by: Sascha Hauer Tested-by: Richard Leitner --- drivers/dma/imx-sdma.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 8070fd6..e510df0 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -433,7 +433,6 @@ 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; }; @@ -1008,9 +1007,6 @@ 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) @@ -1053,8 +1049,6 @@ static int sdma_load_context(struct sdma_channel *sdmac) spin_unlock_irqrestore(&sdma->channel_0_lock, flags); - sdmac->context_loaded = true; - return ret; } @@ -1093,7 +1087,6 @@ static void sdma_channel_terminate_work(struct work_struct *work) vchan_get_all_descriptors(&sdmac->vc, &head); spin_unlock_irqrestore(&sdmac->vc.lock, flags); vchan_dma_desc_free_list(&sdmac->vc, &head); - sdmac->context_loaded = false; } static int sdma_terminate_all(struct dma_chan *chan) @@ -1361,7 +1354,6 @@ static void sdma_free_chan_resources(struct dma_chan *chan) sdmac->event_id0 = 0; sdmac->event_id1 = 0; - sdmac->context_loaded = false; sdma_set_channel_priority(sdmac, 0);