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author | Michał Mirosław <mirq-linux@rere.qmqm.pl> | 2022-01-11 03:32:41 +0100 |
---|---|---|
committer | Sebastian Reichel <sre@kernel.org> | 2022-02-13 22:21:42 +0100 |
commit | 513e3b53c1d535631ad206105ecb278ca56a5ce9 (patch) | |
tree | 33d311ced37f726d287678584659fbdaee75427d | |
parent | cf215c37f581c4afd6a4880eeb9f4ac70d000c32 (diff) | |
download | linux-stable-513e3b53c1d535631ad206105ecb278ca56a5ce9.tar.gz linux-stable-513e3b53c1d535631ad206105ecb278ca56a5ce9.tar.bz2 linux-stable-513e3b53c1d535631ad206105ecb278ca56a5ce9.zip |
power: supply: ltc2941: clean up error messages
Replace dev_err() with dev_err_probe() in probe() and extend register
access failure messages. dev_err()s in _reset() are removed as they
are redundant: register access wrappers already log the error.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
-rw-r--r-- | drivers/power/supply/ltc2941-battery-gauge.c | 53 |
1 files changed, 20 insertions, 33 deletions
diff --git a/drivers/power/supply/ltc2941-battery-gauge.c b/drivers/power/supply/ltc2941-battery-gauge.c index c0cbf4cd59ee..657305214d68 100644 --- a/drivers/power/supply/ltc2941-battery-gauge.c +++ b/drivers/power/supply/ltc2941-battery-gauge.c @@ -112,7 +112,8 @@ static int ltc294x_read_regs(struct i2c_client *client, ret = i2c_transfer(client->adapter, &msgs[0], 2); if (ret < 0) { - dev_err(&client->dev, "ltc2941 read_reg failed!\n"); + dev_err(&client->dev, "ltc2941 read_reg(0x%x[%d]) failed: %pe\n", + reg, num_regs, ERR_PTR(ret)); return ret; } @@ -130,7 +131,8 @@ static int ltc294x_write_regs(struct i2c_client *client, ret = i2c_smbus_write_i2c_block_data(client, reg_start, num_regs, buf); if (ret < 0) { - dev_err(&client->dev, "ltc2941 write_reg failed!\n"); + dev_err(&client->dev, "ltc2941 write_reg(0x%x[%d]) failed: %pe\n", + reg, num_regs, ERR_PTR(ret)); return ret; } @@ -148,11 +150,8 @@ static int ltc294x_reset(const struct ltc294x_info *info, int prescaler_exp) /* Read status and control registers */ ret = ltc294x_read_regs(info->client, LTC294X_REG_CONTROL, &value, 1); - if (ret < 0) { - dev_err(&info->client->dev, - "Could not read registers from device\n"); - goto error_exit; - } + if (ret < 0) + return ret; control = LTC294X_REG_CONTROL_PRESCALER_SET(prescaler_exp) | LTC294X_REG_CONTROL_ALCC_CONFIG_DISABLED; @@ -172,17 +171,11 @@ static int ltc294x_reset(const struct ltc294x_info *info, int prescaler_exp) if (value != control) { ret = ltc294x_write_regs(info->client, LTC294X_REG_CONTROL, &control, 1); - if (ret < 0) { - dev_err(&info->client->dev, - "Could not write register\n"); - goto error_exit; - } + if (ret < 0) + return ret; } return 0; - -error_exit: - return ret; } static int ltc294x_read_charge_register(const struct ltc294x_info *info, @@ -472,11 +465,9 @@ static int ltc294x_i2c_probe(struct i2c_client *client, /* r_sense can be negative, when sense+ is connected to the battery * instead of the sense-. This results in reversed measurements. */ ret = of_property_read_u32(np, "lltc,resistor-sense", &r_sense); - if (ret < 0) { - dev_err(&client->dev, + if (ret < 0) + return dev_err_probe(&client->dev, ret, "Could not find lltc,resistor-sense in devicetree\n"); - return ret; - } info->r_sense = r_sense; ret = of_property_read_u32(np, "lltc,prescaler-exponent", @@ -502,11 +493,9 @@ static int ltc294x_i2c_probe(struct i2c_client *client, /* Read status register to check for LTC2942 */ if (info->id == LTC2941_ID || info->id == LTC2942_ID) { ret = ltc294x_read_regs(client, LTC294X_REG_STATUS, &status, 1); - if (ret < 0) { - dev_err(&client->dev, + if (ret < 0) + return dev_err_probe(&client->dev, ret, "Could not read status register\n"); - return ret; - } if (status & LTC2941_REG_STATUS_CHIP_ID) info->id = LTC2941_ID; else @@ -545,19 +534,17 @@ static int ltc294x_i2c_probe(struct i2c_client *client, return ret; ret = ltc294x_reset(info, prescaler_exp); - if (ret < 0) { - dev_err(&client->dev, "Communication with chip failed\n"); - return ret; - } + if (ret < 0) + return dev_err_probe(&client->dev, ret, + "Communication with chip failed\n"); info->supply = devm_power_supply_register(&client->dev, &info->supply_desc, &psy_cfg); - if (IS_ERR(info->supply)) { - dev_err(&client->dev, "failed to register ltc2941\n"); - return PTR_ERR(info->supply); - } else { - schedule_delayed_work(&info->work, LTC294X_WORK_DELAY * HZ); - } + if (IS_ERR(info->supply)) + return dev_err_probe(&client->dev, PTR_ERR(info->supply), + "failed to register ltc2941\n"); + + schedule_delayed_work(&info->work, LTC294X_WORK_DELAY * HZ); return 0; } |