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From: Vladimir Oltean <olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
Cc: linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.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-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

From: Vladimir Oltean <vladimir.oltean-3arQi8VN3Tc@public.gmane.org>

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-3arQi8VN3Tc@public.gmane.org>
---
 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

  parent reply	other threads:[~2020-03-02  0:19 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 4/6] spi: spi-fsl-dspi: LS2080A and LX2160A support XSPI mode Vladimir Oltean
     [not found]   ` <20200302001958.11105-5-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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
     [not found]   ` <20200302001958.11105-6-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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
     [not found] ` <20200302001958.11105-1-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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
     [not found]     ` <20200302001958.11105-4-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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   ` Vladimir Oltean [this message]
     [not found]     ` <20200302001958.11105-7-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-03-04 18:29       ` Applied "spi: spi-fsl-dspi: Convert the instantiations that support it to DMA" " Mark Brown

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