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From: Robin Gong <yibin.gong@nxp.com>
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
Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	kernel@pengutronix.de, linux-imx@nxp.com
Subject: [PATCH v8 03/13] Revert "dmaengine: imx-sdma: refine to load context only once"
Date: Thu, 21 May 2020 04:34:15 +0800	[thread overview]
Message-ID: <1590006865-20900-4-git-send-email-yibin.gong@nxp.com> (raw)
In-Reply-To: <1590006865-20900-1-git-send-email-yibin.gong@nxp.com>

This reverts commit ad0d92d7ba6aecbe2705907c38ff8d8be4da1e9c, because
in spi-imx case, burst length may be changed dynamically.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
---
 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 9177403..b1f61eb 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;
 };
@@ -984,9 +983,6 @@ 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)
@@ -1029,8 +1025,6 @@ static int sdma_load_context(struct sdma_channel *sdmac)
 
 	spin_unlock_irqrestore(&sdma->channel_0_lock, flags);
 
-	sdmac->context_loaded = true;
-
 	return ret;
 }
 
@@ -1069,7 +1063,6 @@ 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)
@@ -1338,7 +1331,6 @@ 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


WARNING: multiple messages have this Message-ID (diff)
From: Robin Gong <yibin.gong@nxp.com>
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
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-spi@vger.kernel.org, linux-imx@nxp.com,
	kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org
Subject: [PATCH v8 03/13] Revert "dmaengine: imx-sdma: refine to load context only once"
Date: Thu, 21 May 2020 04:34:15 +0800	[thread overview]
Message-ID: <1590006865-20900-4-git-send-email-yibin.gong@nxp.com> (raw)
In-Reply-To: <1590006865-20900-1-git-send-email-yibin.gong@nxp.com>

This reverts commit ad0d92d7ba6aecbe2705907c38ff8d8be4da1e9c, because
in spi-imx case, burst length may be changed dynamically.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
---
 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 9177403..b1f61eb 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;
 };
@@ -984,9 +983,6 @@ 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)
@@ -1029,8 +1025,6 @@ static int sdma_load_context(struct sdma_channel *sdmac)
 
 	spin_unlock_irqrestore(&sdma->channel_0_lock, flags);
 
-	sdmac->context_loaded = true;
-
 	return ret;
 }
 
@@ -1069,7 +1063,6 @@ 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)
@@ -1338,7 +1331,6 @@ 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


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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2020-05-20 12:34 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-20 20:34 [PATCH v8 00/13] add ecspi ERR009165 for i.mx6/7 soc family Robin Gong
2020-05-20 20:34 ` Robin Gong
2020-05-20 20:34 ` [PATCH v8 01/13] Revert "ARM: dts: imx6q: Use correct SDMA script for SPI5 core" Robin Gong
2020-05-20 20:34   ` Robin Gong
2020-05-20 20:34 ` [PATCH v8 02/13] Revert "ARM: dts: imx6: Use correct SDMA script for SPI cores" Robin Gong
2020-05-20 20:34   ` Robin Gong
2020-05-20 20:34 ` Robin Gong [this message]
2020-05-20 20:34   ` [PATCH v8 03/13] Revert "dmaengine: imx-sdma: refine to load context only once" Robin Gong
2020-05-20 20:34 ` [PATCH v8 04/13] dmaengine: imx-sdma: remove duplicated sdma_load_context Robin Gong
2020-05-20 20:34   ` Robin Gong
2020-05-20 20:34 ` [PATCH v8 05/13] spi: imx: fallback to PIO if dma setup failure Robin Gong
2020-05-20 20:34   ` Robin Gong
2020-05-20 20:34 ` [PATCH v8 06/13] dmaengine: imx-sdma: add mcu_2_ecspi script Robin Gong
2020-05-20 20:34   ` Robin Gong
2020-05-20 20:34 ` [PATCH v8 07/13] spi: imx: fix ERR009165 Robin Gong
2020-05-20 20:34   ` Robin Gong
2020-05-20 20:34 ` [PATCH v8 08/13] spi: imx: remove ERR009165 workaround on i.mx6ul Robin Gong
2020-05-20 20:34   ` Robin Gong
2020-05-20 20:34 ` [PATCH v8 09/13] spi: imx: add new i.mx6ul compatible name in binding doc Robin Gong
2020-05-20 20:34   ` Robin Gong
2020-05-20 20:34 ` [PATCH v8 10/13] dmaengine: imx-sdma: remove ERR009165 on i.mx6ul Robin Gong
2020-05-20 20:34   ` Robin Gong
2020-05-20 20:34 ` [PATCH v8 11/13] dma: imx-sdma: add i.mx6ul compatible name Robin Gong
2020-05-20 20:34   ` Robin Gong
2020-05-20 20:34 ` [PATCH v8 12/13] dmaengine: imx-sdma: fix ecspi1 rx dma not work on i.mx8mm Robin Gong
2020-05-20 20:34   ` Robin Gong
2020-05-20 20:34 ` [PATCH v8 13/13] dmaengine: imx-sdma: add uart rom script Robin Gong
2020-05-20 20:34   ` Robin Gong
2020-05-27  5:03 ` [PATCH v8 00/13] add ecspi ERR009165 for i.mx6/7 soc family Sascha Hauer
2020-05-27  5:03   ` Sascha Hauer
2020-05-28 13:07 ` Mark Brown
2020-05-28 13:07   ` Mark Brown
2020-06-03  8:31 ` (EXT) " Matthias Schiffer
2020-06-03  8:31   ` Matthias Schiffer
2020-06-03  9:50   ` Robin Gong
2020-06-03  9:50     ` Robin Gong
2020-06-03 11:50     ` Matthias Schiffer
2020-06-05  2:45       ` Robin Gong
2020-06-05  2:45         ` Robin Gong
2020-06-05  7:57         ` (EXT) " Matthias Schiffer
2020-06-05  7:57           ` Matthias Schiffer

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