* [PATCH] mxs/spi: Restart the block after unsuccessful transfer
@ 2012-08-24 2:34 Marek Vasut
2012-08-27 16:37 ` Mark Brown
0 siblings, 1 reply; 2+ messages in thread
From: Marek Vasut @ 2012-08-24 2:34 UTC (permalink / raw)
To: linux-arm-kernel
Restart the SSP block in case the SSP transfer failed in any way.
The block hung in some cases otherwise.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chris Ball <cjb@laptop.org>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
---
drivers/spi/spi-mxs.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 746359e..8075683 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -445,8 +445,10 @@ static int mxs_spi_transfer_one(struct spi_master *master,
}
m->actual_length += t->len;
- if (status)
+ if (status) {
+ stmp_reset_block(ssp->base);
break;
+ }
first = last = 0;
}
--
1.7.10.4
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2012-08-27 16:37 ` Mark Brown
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