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| author | Duson Lin <dusonlin@emc.com.tw> | 2015-03-08 04:57:54 (GMT) |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-03-08 05:11:51 (GMT) |
| commit | b3beed7fe83b077291aa32d1f3006c8480f6344b (patch) | |
| tree | 6d45d2181ab82076b92e770243a2d68252688ae1 /drivers/input/mouse/elan_i2c_core.c | |
| parent | ceb5b6c8bee4841abac9e010c6069934d0f7c996 (diff) | |
| download | linux-b3beed7fe83b077291aa32d1f3006c8480f6344b.tar.xz | |
Input: elan_i2c - return error code when resume fails
In order to better diagnose potential issues let's return error to the
upper layers when resuming the device fails and also add a few diagnostic
messages.
Signed-off-by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/mouse/elan_i2c_core.c')
| -rw-r--r-- | drivers/input/mouse/elan_i2c_core.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c index 7ce8bfe..b753538 100644 --- a/drivers/input/mouse/elan_i2c_core.c +++ b/drivers/input/mouse/elan_i2c_core.c @@ -99,7 +99,7 @@ static int elan_enable_power(struct elan_tp_data *data) error = regulator_enable(data->vcc); if (error) { dev_err(&data->client->dev, - "Failed to enable regulator: %d\n", error); + "failed to enable regulator: %d\n", error); return error; } @@ -111,6 +111,7 @@ static int elan_enable_power(struct elan_tp_data *data) msleep(30); } while (--repeat > 0); + dev_err(&data->client->dev, "failed to enable power: %d\n", error); return error; } @@ -125,7 +126,7 @@ static int elan_disable_power(struct elan_tp_data *data) error = regulator_disable(data->vcc); if (error) { dev_err(&data->client->dev, - "Failed to disable regulator: %d\n", + "failed to disable regulator: %d\n", error); /* Attempt to power the chip back up */ data->ops->power_control(data->client, true); @@ -138,6 +139,7 @@ static int elan_disable_power(struct elan_tp_data *data) msleep(30); } while (--repeat > 0); + dev_err(&data->client->dev, "failed to disable power: %d\n", error); return error; } @@ -1084,16 +1086,18 @@ static int __maybe_unused elan_resume(struct device *dev) } error = elan_enable_power(data); - if (error) + if (error) { dev_err(dev, "power up when resuming failed: %d\n", error); + goto err; + } error = elan_initialize(data); if (error) dev_err(dev, "initialize when resuming failed: %d\n", error); +err: enable_irq(data->client->irq); - - return 0; + return error; } static SIMPLE_DEV_PM_OPS(elan_pm_ops, elan_suspend, elan_resume); |