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Mon, 31 Aug 2020 07:50:49 +0000 From: Robin Gong To: mark.rutland@arm.com, broonie@kernel.org, robh+dt@kernel.org, catalin.marinas@arm.com, vkoul@kernel.org, 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, r.schwebel@pengutronix.de, Benjamin.Bara@skidata.com, Richard.Leitner@skidata.com Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, dmaengine@vger.kernel.org, linux-imx@nxp.com Subject: [PATCH v13 03/12] Revert "dmaengine: imx-sdma: refine to load context only once" Date: Tue, 1 Sep 2020 00:03:16 +0800 Message-Id: <1598889805-30399-4-git-send-email-yibin.gong@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1598889805-30399-1-git-send-email-yibin.gong@nxp.com> References: <1598889805-30399-1-git-send-email-yibin.gong@nxp.com> Content-Type: text/plain X-ClientProxiedBy: SG2PR02CA0104.apcprd02.prod.outlook.com (2603:1096:4:92::20) To VE1PR04MB6638.eurprd04.prod.outlook.com (2603:10a6:803:119::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from robin-OptiPlex-790.ap.freescale.net (119.31.174.67) by SG2PR02CA0104.apcprd02.prod.outlook.com (2603:1096:4:92::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3326.20 via Frontend Transport; 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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 4f8d8f5..22be370 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -379,7 +379,6 @@ 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; }; @@ -986,9 +985,6 @@ 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) @@ -1031,8 +1027,6 @@ static int sdma_load_context(struct sdma_channel *sdmac) spin_unlock_irqrestore(&sdma->channel_0_lock, flags); - sdmac->context_loaded = true; - return ret; } @@ -1071,7 +1065,6 @@ 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) @@ -1339,7 +1332,6 @@ 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); -- 2.7.4