[PATCH v2 37/45] mfd: tps65910: Use devm_register_simple_power_off_handler()

[Dmitry Osipenko <digetx@xxxxxxxxx>]

Use devm_register_simple_power_off_handler() that replaces global
pm_power_off variable and allows to register multiple power-off handlers.

Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
---
 drivers/mfd/tps65910.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
index 6e105cca27d4..8fab30dc84e5 100644
--- a/drivers/mfd/tps65910.c
+++ b/drivers/mfd/tps65910.c
@@ -16,6 +16,7 @@
 #include <linux/irq.h>
 #include <linux/irqdomain.h>
 #include <linux/mfd/core.h>
+#include <linux/reboot.h>
 #include <linux/regmap.h>
 #include <linux/mfd/tps65910.h>
 #include <linux/of.h>
@@ -429,9 +430,9 @@ struct tps65910_board *tps65910_parse_dt(struct i2c_client 
*client,
 }
 #endif
 
-static struct i2c_client *tps65910_i2c_client;
-static void tps65910_power_off(void)
+static void tps65910_power_off(void *data)
 {
+       struct i2c_client *tps65910_i2c_client = data;
        struct tps65910 *tps65910;
 
        tps65910 = dev_get_drvdata(&tps65910_i2c_client->dev);
@@ -503,9 +504,15 @@ static int tps65910_i2c_probe(struct i2c_client *i2c,
        tps65910_ck32k_init(tps65910, pmic_plat_data);
        tps65910_sleepinit(tps65910, pmic_plat_data);
 
-       if (pmic_plat_data->pm_off && !pm_power_off) {
-               tps65910_i2c_client = i2c;
-               pm_power_off = tps65910_power_off;
+       if (pmic_plat_data->pm_off) {
+               ret = devm_register_simple_power_off_handler(&i2c->dev,
+                                                            tps65910_power_off,
+                                                            i2c);
+               if (ret) {
+                       dev_err(&i2c->dev,
+                               "failed to register power-off handler: %d\n", 
ret);
+                       return ret;
+               }
        }
 
        ret = devm_mfd_add_devices(tps65910->dev, -1,
-- 
2.33.1