spi: s3c64xx: Added provision for dedicated cs pin

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The existing driver supports gpio based /cs signal.
For controller's that have one device per controller,
the slave device's /cs signal might be internally controlled
by the chip select bit of slave select register. They are not
externally asserted/deasserted using gpio pin.

This patch adds support for controllers with dedicated /cs pin.
if "cs-gpio" property doesnt exist in a spi dts node, the controller
would treat the /cs pin as dedicated.

Signed-off-by: Girish K S <ks.giri@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

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Girish K S 2013-06-21 11:26:12 +05:30 • committed by Mark Brown

parent 796170733e

commit 3146beec21

1 changed files with 26 additions and 8 deletions

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drivers/spi/spi-s3c64xx.c

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