[PATCH v2 40/45] mfd: twl4030: Use devm_register_trivial_power_off_handler()

[Dmitry Osipenko <digetx@xxxxxxxxx>]

Use devm_register_trivial_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/twl4030-power.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
index 6b36932263ba..72df4735d628 100644
--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -29,6 +29,7 @@
 #include <linux/platform_device.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/reboot.h>
 
 #include <asm/mach-types.h>
 
@@ -923,7 +924,7 @@ static int twl4030_power_probe(struct platform_device *pdev)
        }
 
        /* Board has to be wired properly to use this feature */
-       if (twl4030_power_use_poweroff(pdata, node) && !pm_power_off) {
+       if (twl4030_power_use_poweroff(pdata, node)) {
                /* Default for SEQ_OFFSYNC is set, lets ensure this */
                err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &val,
                                      TWL4030_PM_MASTER_CFG_P123_TRANSITION);
@@ -939,7 +940,12 @@ static int twl4030_power_probe(struct platform_device 
*pdev)
                        }
                }
 
-               pm_power_off = twl4030_power_off;
+               err = devm_register_trivial_power_off_handler(&pdev->dev,
+                                                             
twl4030_power_off);
+               if (err) {
+                       dev_err(&pdev->dev, "Failed to register power-off 
handler\n");
+                       goto relock;
+               }
        }
 
 relock:
-- 
2.33.1