As pointed by Mark, it is generally useful to log the error code when
reporting a failure. This patch improves existing calls to dev_err()
in ISL12057 driver to also report error code.
Suggested-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Arnaud Ebalard <arno@xxxxxxxxxxxx>
---
drivers/rtc/rtc-isl12057.c | 22 ++++++++++++++--------
1 file changed, 14 insertions(+), 8 deletions(-)
diff --git a/drivers/rtc/rtc-isl12057.c b/drivers/rtc/rtc-isl12057.c
index 31eaa6a9c2b2..a783e16cfd2f 100644
--- a/drivers/rtc/rtc-isl12057.c
+++ b/drivers/rtc/rtc-isl12057.c
@@ -170,8 +170,8 @@ static int isl12057_rtc_read_time(struct device *dev, struct rtc_time *tm)
mutex_lock(&data->lock);
ret = regmap_read(data->regmap, ISL12057_REG_SR, &sr);
if (ret) {
- dev_err(dev, "%s: unable to read oscillator status flag\n",
- __func__);
+ dev_err(dev, "%s: unable to read oscillator status flag (%d)\n",
+ __func__, ret);
goto out;
} else {
if (sr & ISL12057_REG_SR_OSF) {
@@ -183,7 +183,8 @@ static int isl12057_rtc_read_time(struct device *dev, struct rtc_time *tm)
ret = regmap_bulk_read(data->regmap, ISL12057_REG_RTC_SC, regs,
ISL12057_RTC_SEC_LEN);
if (ret)
- dev_err(dev, "%s: unable to read RTC time\n", __func__);
+ dev_err(dev, "%s: unable to read RTC time section (%d)\n",
+ __func__, ret);
out:
mutex_unlock(&data->lock);
@@ -210,7 +211,8 @@ static int isl12057_rtc_set_time(struct device *dev, struct rtc_time *tm)
ret = regmap_bulk_write(data->regmap, ISL12057_REG_RTC_SC, regs,
ISL12057_RTC_SEC_LEN);
if (ret) {
- dev_err(dev, "%s: writing RTC time failed\n", __func__);
+ dev_err(dev, "%s: unable to write RTC time section (%d)\n",
+ __func__, ret);
goto out;
}
@@ -221,7 +223,8 @@ static int isl12057_rtc_set_time(struct device *dev, struct rtc_time *tm)
ret = regmap_update_bits(data->regmap, ISL12057_REG_SR,
ISL12057_REG_SR_OSF, 0);
if (ret < 0)
- dev_err(dev, "Unable to clear oscillator failure bit\n");
+ dev_err(dev, "%s: unable to clear osc. failure bit (%d)\n",
+ __func__, ret);
out:
mutex_unlock(&data->lock);
@@ -242,7 +245,8 @@ static int isl12057_check_rtc_status(struct device *dev, struct regmap *regmap)
ret = regmap_update_bits(regmap, ISL12057_REG_INT,
ISL12057_REG_INT_EOSC, 0);
if (ret < 0) {
- dev_err(dev, "Unable to enable oscillator\n");
+ dev_err(dev, "%s: unable to enable oscillator (%d)\n",
+ __func__, ret);
return ret;
}
@@ -250,7 +254,8 @@ static int isl12057_check_rtc_status(struct device *dev, struct regmap *regmap)
ret = regmap_update_bits(regmap, ISL12057_REG_SR,
ISL12057_REG_SR_A1F, 0);
if (ret < 0) {
- dev_err(dev, "Unable to clear alarm bit\n");
+ dev_err(dev, "%s: unable to clear alarm bit (%d)\n",
+ __func__, ret);
return ret;
}
@@ -284,7 +289,8 @@ static int isl12057_probe(struct i2c_client *client,
regmap = devm_regmap_init_i2c(client, &isl12057_rtc_regmap_config);
if (IS_ERR(regmap)) {
ret = PTR_ERR(regmap);
- dev_err(dev, "regmap allocation failed: %d\n", ret);
+ dev_err(dev, "%s: regmap allocation failed (%d)\n",
+ __func__, ret);
return ret;
}
--
2.1.1
--
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