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| author |   Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2015-02-24 10:54:47 +0100 |
|---|---|---|
| committer |   Sebastian Reichel <sre@kernel.org> | 2015-02-25 21:45:46 +0100 |
| commit | bc352686f6801592b4f4a53d8008e80931684c84 (patch) | |
| tree | 959b0573e9fea8851d37f19f55de8f38e544203a /drivers/power | |
| parent | power_supply: max17040: Use system efficient workqueues (diff) | |
| download | linux-dev-bc352686f6801592b4f4a53d8008e80931684c84.tar.xz linux-dev-bc352686f6801592b4f4a53d8008e80931684c84.zip | |
power_supply: max17042: Use regmap_update_bits instead read and write
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.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/max17042_battery.c | 10 |
1 files 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; |