From: Murali Karicheri <m-karicheri2@ti.com>
Date: Wed, 10 Jun 2015 07:23:42 +0000 (-0400)
Subject: spi: davinci: change the lower limit of pre-scale divider to 1
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~146^2~3^4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0b047bd8fc73b35ba1081097e0223eb778d982c;p=pandora-kernel.git

spi: davinci: change the lower limit of pre-scale divider to 1

SPI hardware spec for Keystone specify a lower value of 0 for pre-scale
divider which determine what max value of spi clock (spi-max-frequency)
the device can support. This translates to a clock divider of 2. So fix
the lower limit value used for the boundary check in
davinci_spi_get_prescale() function to 1 so that a maximum of spi device
clock rate / 2 is possible to be set for spi-max-frequency.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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