diff options
Diffstat (limited to 'drivers/mfd/twl-core.c')
| -rw-r--r-- | drivers/mfd/twl-core.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index 6e384a79e3..c130ffef18 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -124,6 +124,11 @@ #define TWL6030_BASEADD_RSV 0x0000 #define TWL6030_BASEADD_ZERO 0x0000 +/* Some fields in TWL6030_PHOENIX_DEV_ON */ +#define TWL6030_APP_DEVOFF BIT(0) +#define TWL6030_CON_DEVOFF BIT(1) +#define TWL6030_MOD_DEVOFF BIT(2) + /* Few power values */ #define R_CFG_BOOT 0x05 @@ -687,6 +692,20 @@ static void twl_remove(struct i2c_client *client) twl_priv->ready = false; } +static void twl6030_power_off(void) +{ + int err; + u8 val; + + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &val, TWL6030_PHOENIX_DEV_ON); + if (err) + return; + + val |= TWL6030_APP_DEVOFF | TWL6030_CON_DEVOFF | TWL6030_MOD_DEVOFF; + twl_i2c_write_u8(TWL_MODULE_PM_MASTER, val, TWL6030_PHOENIX_DEV_ON); +} + + static struct of_dev_auxdata twl_auxdata_lookup[] = { OF_DEV_AUXDATA("ti,twl4030-gpio", 0, "twl4030-gpio", NULL), { /* sentinel */ }, @@ -852,6 +871,15 @@ twl_probe(struct i2c_client *client) goto free; } + if (twl_class_is_6030()) { + if (of_device_is_system_power_controller(node)) { + if (!pm_power_off) + pm_power_off = twl6030_power_off; + else + dev_warn(&client->dev, "Poweroff callback already assigned\n"); + } + } + status = of_platform_populate(node, NULL, twl_auxdata_lookup, &client->dev); |