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authorTrent Piepho <tpiepho@gmail.com>2013-10-01 16:14:39 -0400
committerMark Brown <broonie@linaro.org>2013-10-17 20:00:29 -0400
commit75e73fa24882fb76e8ef89226893728ed0f78870 (patch)
tree05cfaf0f73cea86693c9d16f1bdb38c2bfb25105 /drivers/spi/spi-mxs.c
parentf5bc7384dc4e9bf3bcf976ef0c1ac9704fa1ad43 (diff)
spi: spi-mxs: Always clear INGORE_CRC, to keep CS asserted
INGORE_CRC, better named DEASSERT_CS, should be cleared on all tranfers except the last. So instead of only clearing it on the first transfer, we can just always clear it. It will set on the last transfer. This removes the only use of the "first" flag in the transfer functions, so that flag can be then be removed. Signed-off-by: Trent Piepho <tpiepho@gmail.com> Cc: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi/spi-mxs.c')
-rw-r--r--drivers/spi/spi-mxs.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 991ee01731b2..e2a9cc21dff1 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -318,9 +318,8 @@ static int mxs_spi_txrx_pio(struct mxs_spi *spi, int cs,
318{ 318{
319 struct mxs_ssp *ssp = &spi->ssp; 319 struct mxs_ssp *ssp = &spi->ssp;
320 320
321 if (*first) 321 writel(BM_SSP_CTRL0_IGNORE_CRC,
322 writel(BM_SSP_CTRL0_IGNORE_CRC, 322 ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
323 ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
324 323
325 mxs_spi_set_cs(spi, cs); 324 mxs_spi_set_cs(spi, cs);
326 325