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mfd: rn5t618: Register power off callback optionally

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Only register power off if the PMIC is defined as system power
controller (see Documentation/devicetree/bindings/power/
power-controller.txt).

Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Stefan Agner 2016-06-28 22:53:21 -07:00 committed by Lee Jones
parent ed6d362d8d
commit fd65ae4cb6
1 changed files with 7 additions and 3 deletions
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10
drivers/mfd/rn5t618.c
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@ -102,9 +102,13 @@ static int rn5t618_i2c_probe(struct i2c_client *i2c,
return ret;
}
if (!pm_power_off) {
rn5t618_pm_power_off = priv;
pm_power_off = rn5t618_power_off;
if (of_device_is_system_power_controller(i2c->dev.of_node)) {
if (!pm_power_off) {
rn5t618_pm_power_off = priv;
pm_power_off = rn5t618_power_off;
} else {
dev_warn(&i2c->dev, "Poweroff callback already assigned\n");
}
}
return 0;