From 8db98440facad7e3a194f21ce6069e04bff336c6 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@gmail.com>
Date: Thu, 19 Jul 2012 15:10:31 +0800
Subject: [PATCH] regulator: mc13892: Simplify implementation of
 mc13892_sw_regulator_set_voltage_sel()

Use mc13xxx_reg_rmw rather than a mc13xxx_reg_read and a mc13xxx_reg_write calls.

This logic to set MC13892_SWITCHERS0_SWxHI bit is pretty simple:

if (volt > 1375000)
        set MC13892_SWITCHERS0_SWxHI bit
else if (volt < 1100000)
        clear MC13892_SWITCHERS0_SWxHI bit
else
        leave MC13892_SWITCHERS0_SWxHI bit untouched

We already know the selector, so we don't need to calculate the selector again.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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