regmap: spi: Handle async writes of only one buffer
authorMark Brown <broonie@linaro.org>
Thu, 10 Oct 2013 21:25:23 +0000 (22:25 +0100)
committerMark Brown <broonie@linaro.org>
Mon, 14 Oct 2013 21:09:26 +0000 (22:09 +0100)
If the value is zero then assume it has been included in the register data
and don't send anything, minimising the number of interactions with the
hardware.

Signed-off-by: Mark Brown <broonie@linaro.org>

No differences found