diff options
| author |   Arnaud Ebalard <arno@natisbad.org> | 2014-12-10 15:54:11 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-10 17:41:16 -0800 |
| commit | cf67d0b6410182eefd4db665279fce76c9a19cf9 (patch) | |
| tree | 72d295432c25074385f236b116efac7ea491f24a /drivers/rtc | |
| parent | drivers/rtc/rtc-isl12057.c: add proper handling of oscillator failure bit (diff) | |
| download | linux-dev-cf67d0b6410182eefd4db665279fce76c9a19cf9.tar.xz linux-dev-cf67d0b6410182eefd4db665279fce76c9a19cf9.zip | |
drivers/rtc/rtc-isl12057.c: report error code upon failure in dev_err() calls
As pointed out 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.
Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Suggested-by: Mark Brown <broonie@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Peter Huewe <peter.huewe@infineon.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Grant Likely <grant.likely@linaro.org>
Acked-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-isl12057.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/rtc/rtc-isl12057.c b/drivers/rtc/rtc-isl12057.c index fe562820a54a..6e1fcfb5d7e6 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; } |