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wm831x_power: Only register WM831x battery charger if enabled

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Don't tell the system about the battery charger if it's not enabled, we
can reasonably assume that if the charger is not enabled then no battery
will ever be connected so reporting state is at best going to waste time
and at worst going to cause confusing information in the UI.

For simplicity and robustness we continue to register and handle interrupts
from the charger.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
This commit is contained in:
Mark Brown
2011-08-16 08:37:42 +09:00
committed by Anton Vorontsov
parent 9ad63986c6
commit 35c3ae5eef
2 changed files with 30 additions and 18 deletions
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4
drivers/power/power_supply_sysfs.c
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@@ -77,8 +77,8 @@ static ssize_t power_supply_show_property(struct device *dev,
dev_dbg(dev, "driver has no data for `%s' property\n",
attr->attr.name);
else if (ret != -ENODEV)
dev_err(dev, "driver failed to report `%s' property\n",
attr->attr.name);
dev_err(dev, "driver failed to report `%s' property: %d\n",
attr->attr.name, ret);
return ret;
}