From: Vladimir Oltean <olteanv@gmail.com>
To: broonie@kernel.org
Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 6/6] spi: spi-fsl-dspi: Convert the instantiations that support it to DMA
Date: Mon, 2 Mar 2020 02:19:58 +0200 [thread overview]
Message-ID: <20200302001958.11105-7-olteanv@gmail.com> (raw)
In-Reply-To: <20200302001958.11105-1-olteanv@gmail.com>
From: Vladimir Oltean <vladimir.oltean@nxp.com>
The A-011218 eDMA/DSPI erratum affects most of the older Layerscape SoCs
with DSPI, and its workaround is a bit intrusive.
After this patch, there are no users of TCFQ mode that don't also
support XSPI (previously there was LS2085A).
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
---
drivers/spi/spi-fsl-dspi.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index c26a42f8ecbc..c357c3247232 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -147,42 +147,49 @@ static const struct fsl_dspi_devtype_data devtype_data[] = {
.fifo_size = 4,
},
[LS1021A] = {
+ /* Has A-011218 DMA erratum */
.trans_mode = DSPI_TCFQ_MODE,
.max_clock_factor = 8,
.xspi_mode = true,
.fifo_size = 4,
},
[LS1012A] = {
+ /* Has A-011218 DMA erratum */
.trans_mode = DSPI_TCFQ_MODE,
.max_clock_factor = 8,
.xspi_mode = true,
.fifo_size = 16,
},
[LS1043A] = {
+ /* Has A-011218 DMA erratum */
.trans_mode = DSPI_TCFQ_MODE,
.max_clock_factor = 8,
.xspi_mode = true,
.fifo_size = 16,
},
[LS1046A] = {
+ /* Has A-011218 DMA erratum */
.trans_mode = DSPI_TCFQ_MODE,
.max_clock_factor = 8,
.xspi_mode = true,
.fifo_size = 16,
},
[LS2080A] = {
- .trans_mode = DSPI_TCFQ_MODE,
+ .trans_mode = DSPI_DMA_MODE,
+ .dma_bufsize = 8,
.max_clock_factor = 8,
.xspi_mode = true,
.fifo_size = 4,
},
[LS2085A] = {
- .trans_mode = DSPI_TCFQ_MODE,
+ .trans_mode = DSPI_DMA_MODE,
+ .dma_bufsize = 8,
.max_clock_factor = 8,
.fifo_size = 4,
},
[LX2160A] = {
- .trans_mode = DSPI_TCFQ_MODE,
+ .trans_mode = DSPI_DMA_MODE,
+ .dma_bufsize = 8,
.max_clock_factor = 8,
.xspi_mode = true,
.fifo_size = 4,
--
2.17.1
next prev parent reply other threads:[~2020-03-02 0:20 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-02 0:19 [PATCH 0/6] Compatible string consolidation for NXP DSPI driver Vladimir Oltean
2020-03-02 0:19 ` [PATCH 1/6] doc: spi-fsl-dspi: Add specific compatibles for all Layerscape SoCs Vladimir Oltean
2020-03-04 18:29 ` Applied "spi: spi-fsl-dspi: Add specific compatibles for all Layerscape SoCs" to the spi tree Mark Brown
2020-03-02 0:19 ` [PATCH 2/6] spi: spi-fsl-dspi: Use specific compatible strings for all SoC instantiations Vladimir Oltean
2020-03-04 18:29 ` Applied "spi: spi-fsl-dspi: Use specific compatible strings for all SoC instantiations" to the spi tree Mark Brown
2020-03-02 0:19 ` [PATCH 3/6] spi: spi-fsl-dspi: Parameterize the FIFO size and DMA buffer size Vladimir Oltean
2020-03-04 18:29 ` Applied "spi: spi-fsl-dspi: Parameterize the FIFO size and DMA buffer size" to the spi tree Mark Brown
2020-03-02 0:19 ` [PATCH 4/6] spi: spi-fsl-dspi: LS2080A and LX2160A support XSPI mode Vladimir Oltean
2020-03-04 18:29 ` Applied "spi: spi-fsl-dspi: LS2080A and LX2160A support XSPI mode" to the spi tree Mark Brown
2020-03-02 0:19 ` [PATCH 5/6] spi: spi-fsl-dspi: Support SPI software timestamping in all non-DMA modes Vladimir Oltean
2020-03-04 18:29 ` Applied "spi: spi-fsl-dspi: Support SPI software timestamping in all non-DMA modes" to the spi tree Mark Brown
2020-03-02 0:19 ` Vladimir Oltean [this message]
2020-03-04 18:29 ` Applied "spi: spi-fsl-dspi: Convert the instantiations that support it to DMA" " Mark Brown
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