diff options
Diffstat (limited to 'drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c')
| -rw-r--r-- | drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c index f4b43e55eba..db470c84793 100644 --- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c +++ b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c @@ -31,6 +31,7 @@ #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/regulator/consumer.h> +#include <linux/earlysuspend.h> #include "synaptics_i2c_rmi4.h" /* TODO: for multiple device support will need a per-device mutex */ @@ -169,6 +170,7 @@ struct synaptics_rmi4_device_info { * @touch_stopped: flag to stop the thread function * @enable: flag to enable/disable the driver event. * @resume_wq_handler: work queue for resume the device + * @early_suspend: early suspend structure variable * * This structure gives the device data information. */ @@ -191,8 +193,14 @@ struct synaptics_rmi4_data { bool touch_stopped; bool enable; struct work_struct resume_wq_handler; + struct early_suspend early_suspend; }; +#ifdef CONFIG_HAS_EARLYSUSPEND +static void synaptics_rmi4_early_suspend(struct early_suspend *data); +static void synaptics_rmi4_late_resume(struct early_suspend *data); +#endif + /** * synaptics_rmi4_set_page() - sets the page * @pdata: pointer to synaptics_rmi4_data structure @@ -1190,6 +1198,14 @@ static int __devinit synaptics_rmi4_probe goto err_sysfs; } rmi4_data->enable = true; + +#ifdef CONFIG_HAS_EARLYSUSPEND + rmi4_data->early_suspend.level = + EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1; + rmi4_data->early_suspend.suspend = synaptics_rmi4_early_suspend; + rmi4_data->early_suspend.resume = synaptics_rmi4_late_resume; + register_early_suspend(&rmi4_data->early_suspend); +#endif return retval; err_sysfs: @@ -1239,6 +1255,7 @@ static int __devexit synaptics_rmi4_remove(struct i2c_client *client) return 0; } +#ifndef CONFIG_HAS_EARLYSUSPEND #ifdef CONFIG_PM /** * synaptics_rmi4_suspend() - suspend the touch screen controller @@ -1277,6 +1294,32 @@ static const struct dev_pm_ops synaptics_rmi4_dev_pm_ops = { }; #endif +#else +static void synaptics_rmi4_early_suspend(struct early_suspend *data) +{ + struct synaptics_rmi4_data *rmi4_data = + container_of(data, struct synaptics_rmi4_data, early_suspend); + struct i2c_client *client = rmi4_data->i2c_client; + int retval; + + retval = synaptics_rmi4_disable(rmi4_data); + if (retval < 0) + dev_err(&client->dev, "rmi4 disable failed\n"); +} + +static void synaptics_rmi4_late_resume(struct early_suspend *data) +{ + struct synaptics_rmi4_data *rmi4_data = + container_of(data, struct synaptics_rmi4_data, early_suspend); + struct i2c_client *client = rmi4_data->i2c_client; + int retval; + + retval = synaptics_rmi4_enable(rmi4_data); + if (retval < 0) + dev_err(&client->dev, "rmi4 enable failed\n"); +} +#endif + static const struct i2c_device_id synaptics_rmi4_id_table[] = { { DRIVER_NAME, 0 }, { }, @@ -1287,7 +1330,7 @@ static struct i2c_driver synaptics_rmi4_driver = { .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, -#ifdef CONFIG_PM +#if (!defined(CONFIG_HAS_EARLYSUSPEND) && defined(CONFIG_PM)) .pm = &synaptics_rmi4_dev_pm_ops, #endif }, |