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, matthias.schiffer@ew.tq-group.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,
dmaengine@vger.kernel.org
Subject: [PATCH v9 03/14] Revert "dmaengine: imx-sdma: refine to load context only once"
Date: Sat, 6 Jun 2020 05:32:24 +0800 [thread overview]
Message-ID: <1591392755-19136-4-git-send-email-yibin.gong@nxp.com> (raw)
In-Reply-To: <1591392755-19136-1-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>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
---
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
next prev parent reply other threads:[~2020-06-05 13:32 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-05 21:32 [PATCH v9 00/14] add ecspi ERR009165 for i.mx6/7 soc family Robin Gong
2020-06-05 21:32 ` [PATCH v9 01/14] Revert "ARM: dts: imx6q: Use correct SDMA script for SPI5 core" Robin Gong
2020-06-05 21:32 ` [PATCH v9 02/14] Revert "ARM: dts: imx6: Use correct SDMA script for SPI cores" Robin Gong
2020-06-05 21:32 ` Robin Gong [this message]
2020-06-05 21:32 ` [PATCH v9 04/14] dmaengine: imx-sdma: remove duplicated sdma_load_context Robin Gong
2020-06-05 21:32 ` [PATCH v9 05/14] spi: imx: fallback to PIO if dma setup failure Robin Gong
2020-06-05 15:01 ` Mark Brown
2020-06-05 21:32 ` [PATCH v9 06/14] spi: imx: add dma_sync_sg_for_device after fallback from dma Robin Gong
2020-06-05 21:32 ` [PATCH v9 07/14] dmaengine: imx-sdma: add mcu_2_ecspi script Robin Gong
2020-06-05 21:32 ` [PATCH v9 08/14] spi: imx: fix ERR009165 Robin Gong
2020-06-05 21:32 ` [PATCH v9 09/14] spi: imx: remove ERR009165 workaround on i.mx6ul Robin Gong
2020-06-05 21:32 ` [PATCH v9 10/14] spi: imx: add new i.mx6ul compatible name in binding doc Robin Gong
2020-06-05 21:32 ` [PATCH v9 11/14] dmaengine: imx-sdma: remove ERR009165 on i.mx6ul Robin Gong
2020-06-05 21:32 ` [PATCH v9 12/14] dma: imx-sdma: add i.mx6ul compatible name Robin Gong
2020-06-05 21:32 ` [PATCH v9 13/14] dmaengine: imx-sdma: fix ecspi1 rx dma not work on i.mx8mm Robin Gong
2020-06-05 21:32 ` [PATCH v9 14/14] dmaengine: imx-sdma: add uart rom script Robin Gong
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