Upstream Code Aurora function with minor trivial fixes.
Origin: git://codeaurora.org/kernel/msm.gitSigned-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>