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authorChris Zhong <zyw@rock-chips.com>2015-02-28 18:09:06 +0800
committerLee Jones <lee.jones@linaro.org>2015-03-12 09:07:10 +0000
commite19f742885e87ab9582fdf5940f214419eb9275b (patch)
tree952baa33b403a944d7602bfdc060c3ef0f8fc190 /drivers/mfd
parent9a503a7d9ce0eafd4c9c4a73b9c45a53a4ed2314 (diff)
downloadop-kernel-dev-e19f742885e87ab9582fdf5940f214419eb9275b.zip
op-kernel-dev-e19f742885e87ab9582fdf5940f214419eb9275b.tar.gz
mfd: rk808: Disable the under voltage detect
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 <zyw@rock-chips.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/rk808.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index bd02150..7cf25c7 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -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 },
};
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