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mxs/spi: Restart the block after unsuccessful transfer 

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>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Marek Vasut 2012-08-24 04:34:18 +02:00 committed by Mark Brown
parent 4ad1e5b5d1
commit c895db0fb2
1 changed files with 3 additions and 1 deletions
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4
drivers/spi/spi-mxs.c
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@ -439,8 +439,10 @@ 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;
}