From: David Brownell <dbrownell@users.sourceforge.net>
Date: Sun, 16 Nov 2008 19:46:56 +0000 (-0800)
Subject: regulator: improved mode error checks
X-Git-Tag: v2.6.29-rc1~44^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e573520b171095c106ffbbbf4f9cbed6d9bff576;p=pandora-kernel.git

regulator: improved mode error checks

Minor bugfixes in handling of regulator modes:

 - have the routine verifying regulator modes check against
   the set of legal modes (!);

 - have regulator_set_optimum_mode() verify the return value
   of regulator_ops.get_optimum_mode(), like drms_uA_update();

 - one call to regulator_ops.set_mode() treated zero as a
   failure code; make this consistent with other callers.

Both regulator_set_mode() and regulator_set_optimum_mode() now
require valid_ops_mask to include REGULATOR_CHANGE_MODE; that
seems like a bugfix too.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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