From: Kevin Hilman <khilman@ti.com>
Date: Fri, 2 Mar 2012 22:08:57 +0000 (-0800)
Subject: ARM: OMAP2+: voltage: ensure voltage used is exact voltage from OPP table
X-Git-Tag: omap-pm-regulator-for-v3.5^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c15f1d84bb3ddd668593e9bca53221a2f82e9e99;p=pandora-kernel.git

ARM: OMAP2+: voltage: ensure voltage used is exact voltage from OPP table

When using the SMPS regulators to scale voltages, the regulator
framework may pass a minimum voltage that is not an exact OPP voltage.
For the VC/VP controlled voltage domains, we must ensure that the
voltage requested is the exact voltage from the OPP table.  This is
especially critical when using SR.

To fix, voltdm_scale() uses the target voltage passed to walk through
the OPP voltages until it finds a voltage that is >= one of the OPP
voltages.

Cc: Tero Kristo <t-kristo@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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