Consolidate regmap_read() and regmap_write() into one
regmap_update_bits() call. This is more readable and safer because
regmap's mutex will prevent any concurrent access to modified registers
(the concurrent access could happen through max17042_init_chip() in
scheduled work).
Signed-off-by: Krzysztof Kozlowski <k.kozlow...@samsung.com>
---
drivers/power/max17042_battery.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/power/max17042_battery.c b/drivers/power/max17042_battery.c
index 1da6c5fbdff5..830435adfb64 100644
--- a/drivers/power/max17042_battery.c
+++ b/drivers/power/max17042_battery.c
@@ -529,7 +529,6 @@ static int max17042_init_chip(struct max17042_chip *chip)
{
struct regmap *map = chip->regmap;
int ret;
- int val;
max17042_override_por_values(chip);
/* After Power up, the MAX17042 requires 500mS in order
@@ -572,8 +571,7 @@ static int max17042_init_chip(struct max17042_chip *chip)
max17042_load_new_capacity_params(chip);
/* Init complete, Clear the POR bit */
- regmap_read(map, MAX17042_STATUS, &val);
- regmap_write(map, MAX17042_STATUS, val & (~STATUS_POR_BIT));
+ regmap_update_bits(map, MAX17042_STATUS, STATUS_POR_BIT, 0x0);
return 0;
}
@@ -745,9 +743,9 @@ static int max17042_probe(struct i2c_client *client,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
chip->battery.name, chip);
if (!ret) {
- regmap_read(chip->regmap, MAX17042_CONFIG, &val);
- val |= CONFIG_ALRT_BIT_ENBL;
- regmap_write(chip->regmap, MAX17042_CONFIG, val);
+ regmap_update_bits(chip->regmap, MAX17042_CONFIG,
+ CONFIG_ALRT_BIT_ENBL,
+ CONFIG_ALRT_BIT_ENBL);
max17042_set_soc_threshold(chip, 1);
} else {
client->irq = 0;
--
1.9.1
--
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