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leds: lm3692x: Print error value on dev_err 

This gives a way better idea what is going on.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Reviewed-by: Dan Murphy <dmurphy@ti.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
This commit is contained in:
Guido Günther 2019-09-21 14:12:08 -07:00 committed by Pavel
parent 5b4b723c48
commit 1051da2cfc
1 changed files with 10 additions and 7 deletions
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17
drivers/leds/leds-lm3692x.c
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@ -174,19 +174,20 @@ static int lm3692x_brightness_set(struct led_classdev *led_cdev,
ret = lm3692x_fault_check(led);
if (ret) {
dev_err(&led->client->dev, "Cannot read/clear faults\n");
dev_err(&led->client->dev, "Cannot read/clear faults: %d\n",
ret);
goto out;
}
ret = regmap_write(led->regmap, LM3692X_BRT_MSB, brt_val);
if (ret) {
dev_err(&led->client->dev, "Cannot write MSB\n");
dev_err(&led->client->dev, "Cannot write MSB: %d\n", ret);
goto out;
}
ret = regmap_write(led->regmap, LM3692X_BRT_LSB, led_brightness_lsb);
if (ret) {
dev_err(&led->client->dev, "Cannot write LSB\n");
dev_err(&led->client->dev, "Cannot write LSB: %d\n", ret);
goto out;
}
out:
@ -203,7 +204,7 @@ static int lm3692x_init(struct lm3692x_led *led)
ret = regulator_enable(led->regulator);
if (ret) {
dev_err(&led->client->dev,
"Failed to enable regulator\n");
"Failed to enable regulator: %d\n", ret);
return ret;
}
}
@ -213,7 +214,8 @@ static int lm3692x_init(struct lm3692x_led *led)
ret = lm3692x_fault_check(led);
if (ret) {
dev_err(&led->client->dev, "Cannot read/clear faults\n");
dev_err(&led->client->dev, "Cannot read/clear faults: %d\n",
ret);
goto out;
}
@ -409,7 +411,8 @@ static int lm3692x_remove(struct i2c_client *client)
ret = regmap_update_bits(led->regmap, LM3692X_EN, LM3692X_DEVICE_EN, 0);
if (ret) {
dev_err(&led->client->dev, "Failed to disable regulator\n");
dev_err(&led->client->dev, "Failed to disable regulator: %d\n",
ret);
return ret;
}
@ -420,7 +423,7 @@ static int lm3692x_remove(struct i2c_client *client)
ret = regulator_disable(led->regulator);
if (ret)
dev_err(&led->client->dev,
"Failed to disable regulator\n");
"Failed to disable regulator: %d\n", ret);
}
mutex_destroy(&led->lock);