diff options
Diffstat (limited to 'drivers/mfd/stpmic1.c')
| -rw-r--r-- | drivers/mfd/stpmic1.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/mfd/stpmic1.c b/drivers/mfd/stpmic1.c index a79dfb9923d7..3cc7492f828f 100644 --- a/drivers/mfd/stpmic1.c +++ b/drivers/mfd/stpmic1.c @@ -7,6 +7,7 @@ #include <linux/mfd/core.h> #include <linux/mfd/stpmic1.h> #include <linux/module.h> +#include <linux/reboot.h> #include <linux/of.h> #include <linux/of_irq.h> #include <linux/of_platform.h> @@ -117,6 +118,16 @@ static const struct regmap_irq_chip stpmic1_regmap_irq_chip = { .num_irqs = ARRAY_SIZE(stpmic1_irqs), }; +static int stpmic1_power_off(struct sys_off_data *data) +{ + struct stpmic1 *ddata = data->cb_data; + + regmap_update_bits(ddata->regmap, MAIN_CR, + SOFTWARE_SWITCH_OFF, SOFTWARE_SWITCH_OFF); + + return NOTIFY_DONE; +} + static int stpmic1_probe(struct i2c_client *i2c) { struct stpmic1 *ddata; @@ -159,6 +170,16 @@ static int stpmic1_probe(struct i2c_client *i2c) return ret; } + ret = devm_register_sys_off_handler(ddata->dev, + SYS_OFF_MODE_POWER_OFF, + SYS_OFF_PRIO_DEFAULT, + stpmic1_power_off, + ddata); + if (ret) { + dev_err(ddata->dev, "failed to register sys-off handler: %d\n", ret); + return ret; + } + return devm_of_platform_populate(dev); } |