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authorStefan Agner <stefan@agner.ch>2016-06-28 22:53:21 -0700
committerLee Jones <lee.jones@linaro.org>2016-06-29 10:11:35 +0100
commitfd65ae4cb65a9e41af44e37318afb39045d86bf2 (patch)
tree31a9d28c06edfc4dc883bab7251740f0a35f478a
parented6d362d8dbc3494cd98cd771737ea8b1407ed61 (diff)
downloadlinux-fd65ae4cb65a9e41af44e37318afb39045d86bf2.tar.bz2
mfd: rn5t618: Register power off callback optionally
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>
-rw-r--r--drivers/mfd/rn5t618.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c
index c86160d3a773..1831740d9016 100644
--- a/drivers/mfd/rn5t618.c
+++ b/drivers/mfd/rn5t618.c
@@ -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;