diff options
Diffstat (limited to 'drivers/mfd/max8997.c')
| -rw-r--r-- | drivers/mfd/max8997.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c index 5d1fca0277ef..5be53ae9b61c 100644 --- a/drivers/mfd/max8997.c +++ b/drivers/mfd/max8997.c @@ -23,7 +23,9 @@ #include <linux/slab.h> #include <linux/i2c.h> +#include <linux/interrupt.h> #include <linux/pm_runtime.h> +#include <linux/module.h> #include <linux/mutex.h> #include <linux/mfd/core.h> #include <linux/mfd/max8997.h> @@ -135,11 +137,13 @@ static int max8997_i2c_probe(struct i2c_client *i2c, max8997->dev = &i2c->dev; max8997->i2c = i2c; max8997->type = id->driver_data; + max8997->irq = i2c->irq; if (!pdata) goto err; - max8997->wakeup = pdata->wakeup; + max8997->irq_base = pdata->irq_base; + max8997->ono = pdata->ono; mutex_init(&max8997->iolock); @@ -152,6 +156,8 @@ static int max8997_i2c_probe(struct i2c_client *i2c, pm_runtime_set_active(max8997->dev); + max8997_irq_init(max8997); + mfd_add_devices(max8997->dev, -1, max8997_devs, ARRAY_SIZE(max8997_devs), NULL, 0); @@ -164,6 +170,9 @@ static int max8997_i2c_probe(struct i2c_client *i2c, if (ret < 0) goto err_mfd; + /* MAX8997 has a power button input. */ + device_init_wakeup(max8997->dev, pdata->wakeup); + return ret; err_mfd: @@ -393,7 +402,29 @@ static int max8997_restore(struct device *dev) return 0; } +static int max8997_suspend(struct device *dev) +{ + struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); + struct max8997_dev *max8997 = i2c_get_clientdata(i2c); + + if (device_may_wakeup(dev)) + irq_set_irq_wake(max8997->irq, 1); + return 0; +} + +static int max8997_resume(struct device *dev) +{ + struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); + struct max8997_dev *max8997 = i2c_get_clientdata(i2c); + + if (device_may_wakeup(dev)) + irq_set_irq_wake(max8997->irq, 0); + return max8997_irq_resume(max8997); +} + const struct dev_pm_ops max8997_pm = { + .suspend = max8997_suspend, + .resume = max8997_resume, .freeze = max8997_freeze, .restore = max8997_restore, }; |