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Subject[PATCH] power: supply: bq24190: Considers FORCE_20PCT when getting IPRECHG
Date
Adds a check of the FORCE_20PCT bit when getting the precharge
current value.

According to the bit description for the FORCE_20PCT bit, when
FORCE_20PCT is true, the precharge current target is 50% of
what is configured in the IPRECHG bit field.

Signed-off-by: Ricardo Rivera-Matos <rriveram@opensource.cirrus.com>
Reviewed-by: David Rhodes <drhodes@opensource.cirrus.com>
---
drivers/power/supply/bq24190_charger.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/power/supply/bq24190_charger.c b/drivers/power/supply/bq24190_charger.c
index ef8235848f56..3f99cb9590ba 100644
--- a/drivers/power/supply/bq24190_charger.c
+++ b/drivers/power/supply/bq24190_charger.c
@@ -965,7 +965,7 @@ static int bq24190_charger_get_precharge(struct bq24190_dev_info *bdi,
union power_supply_propval *val)
{
u8 v;
- int ret;
+ int curr, ret;

ret = bq24190_read_mask(bdi, BQ24190_REG_PCTCC,
BQ24190_REG_PCTCC_IPRECHG_MASK,
@@ -973,7 +973,20 @@ static int bq24190_charger_get_precharge(struct bq24190_dev_info *bdi,
if (ret < 0)
return ret;

- val->intval = ++v * 128 * 1000;
+ curr = ++v * 128 * 1000;
+
+ ret = bq24190_read_mask(bdi, BQ24190_REG_CCC,
+ BQ24190_REG_CCC_FORCE_20PCT_MASK,
+ BQ24190_REG_CCC_FORCE_20PCT_SHIFT, &v);
+ if (ret < 0)
+ return ret;
+
+ /* If FORCE_20PCT is enabled, then current is 50% of IPRECHG value */
+ if (v)
+ curr /= 2;
+
+ val->intval = curr;
+
return 0;
}

--
2.34.1
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