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spi/dw_spi: enable platform specific chipselect.

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The driver core allows for a platform-specific chipselect assert/deassert
function, however the chipselect function in the core doesn't take advantage
of this fact.

This enables the use of a custom function, should it be defined.

Signed-off-by: George Shore <george@georgeshore.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
George Shore
2010-01-21 11:40:48 +00:00
committed by Grant Likely
parent c587b6fa05
commit 83fe518a83
1 changed files with 4 additions and 0 deletions
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4
include/linux/spi/dw_spi.h
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@@ -172,6 +172,10 @@ static inline void spi_chip_sel(struct dw_spi *dws, u16 cs)
{ {
if (cs > dws->num_cs) if (cs > dws->num_cs)
return; return;
if (dws->cs_control)
dws->cs_control(1);
dw_writel(dws, ser, 1 << cs); dw_writel(dws, ser, 1 << cs);
} }