diff options
Diffstat (limited to 'drivers/mfd/tps6586x.c')
| -rw-r--r-- | drivers/mfd/tps6586x.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index 345960ca2fd8..467464368773 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -30,6 +30,10 @@ #include <linux/mfd/core.h> #include <linux/mfd/tps6586x.h> +#define TPS6586X_SUPPLYENE 0x14 +#define EXITSLREQ_BIT BIT(1) +#define SLEEP_MODE_BIT BIT(3) + /* interrupt control registers */ #define TPS6586X_INT_ACK1 0xb5 #define TPS6586X_INT_ACK2 0xb6 @@ -422,6 +426,7 @@ static struct tps6586x_platform_data *tps6586x_parse_dt(struct i2c_client *clien pdata->subdevs = devs; pdata->gpio_base = -1; pdata->irq_base = -1; + pdata->pm_off = of_property_read_bool(np, "ti,system-power-controller"); return pdata; } @@ -454,6 +459,15 @@ static const struct regmap_config tps6586x_regmap_config = { .cache_type = REGCACHE_RBTREE, }; +static struct device *tps6586x_dev; +static void tps6586x_power_off(void) +{ + if (tps6586x_clr_bits(tps6586x_dev, TPS6586X_SUPPLYENE, EXITSLREQ_BIT)) + return; + + tps6586x_set_bits(tps6586x_dev, TPS6586X_SUPPLYENE, SLEEP_MODE_BIT); +} + static int __devinit tps6586x_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -519,6 +533,11 @@ static int __devinit tps6586x_i2c_probe(struct i2c_client *client, goto err_add_devs; } + if (pdata->pm_off && !pm_power_off) { + tps6586x_dev = &client->dev; + pm_power_off = tps6586x_power_off; + } + return 0; err_add_devs: |