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omap2_mcspi: Flush posted writes

mcspi_write_chconf0 is used to control rx/tx triggering.
Post-write flushing is needed to get the immediate effect.

Signed-off-by: Roman Tereshonkov <>
Signed-off-by: Grant Likely <>
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1 parent 07a389f commit a330ce2001b290c59fe98c37e981683ef0a75fdf Roman Tereshonkov committed with glikely Mar 15, 2010
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  1. +1 −0 drivers/spi/omap2_mcspi.c
@@ -204,6 +204,7 @@ static inline void mcspi_write_chconf0(const struct spi_device *spi, u32 val)
cs->chconf0 = val;
mcspi_write_cs_reg(spi, OMAP2_MCSPI_CHCONF0, val);
+ mcspi_read_cs_reg(spi, OMAP2_MCSPI_CHCONF0);
static void omap2_mcspi_set_dma_req(const struct spi_device *spi,

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