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mfd: rk808: Disable the under voltage detect

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Rk808 has a under voltage detect function, when the voltage of buck is
under 85% the target voltage, the buck output will reset. But if the
power load is too heavy, this function maybe err, when current over
4.2A, although the voltage is normal, but RK808 mistakenly think it is
under 85%, and reset the buck. So let's disable this function.

Signed-off-by: Chris Zhong <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
This commit is contained in:
Chris Zhong 2015-02-28 18:09:06 +08:00 • committed by Lee Jones
commit e19f742885
2 changed files with 4 additions and 0 deletions
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1
drivers/mfd/rk808.c
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@ -89,6 +89,7 @@ static const struct rk808_reg_data pre_init_reg[] = {
{ RK808_BOOST_CONFIG_REG, BOOST_ILMIN_MASK, BOOST_ILMIN_100MA },
{ RK808_BUCK1_CONFIG_REG, BUCK1_RATE_MASK, BUCK_ILMIN_200MA },
{ RK808_BUCK2_CONFIG_REG, BUCK2_RATE_MASK, BUCK_ILMIN_200MA },
{ RK808_DCDC_UV_ACT_REG, BUCK_UV_ACT_MASK, BUCK_UV_ACT_DISABLE},
{ RK808_VB_MON_REG, MASK_ALL, VB_LO_ACT |
VB_LO_SEL_3500MV },
};