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[media] smiapp: Implement power-on and power-off sequences without runtime PM 

Power on the sensor when the module is loaded and power it off when it is
removed.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
hifive-unleashed-5.1
Sakari Ailus 2016-11-16 12:21:19 -02:00 committed by Mauro Carvalho Chehab
parent d183e4efca
commit 9447082ae6
1 changed files with 10 additions and 19 deletions
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29
drivers/media/i2c/smiapp/smiapp-core.c
View File

@ -2741,8 +2741,6 @@ static const struct v4l2_subdev_internal_ops smiapp_internal_ops = {
* I2C Driver
*/
#ifdef CONFIG_PM
static int smiapp_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
@ -2783,13 +2781,6 @@ static int smiapp_resume(struct device *dev)
return rval;
}
#else
#define smiapp_suspend NULL
#define smiapp_resume NULL
#endif /* CONFIG_PM */
static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev)
{
struct smiapp_hwconfig *hwcfg;
@ -2913,13 +2904,9 @@ static int smiapp_probe(struct i2c_client *client,
if (IS_ERR(sensor->xshutdown))
return PTR_ERR(sensor->xshutdown);
pm_runtime_enable(&client->dev);
rval = pm_runtime_get_sync(&client->dev);
if (rval < 0) {
rval = -ENODEV;
goto out_power_off;
}
rval = smiapp_power_on(&client->dev);
if (rval < 0)
return rval;
rval = smiapp_identify_module(sensor);
if (rval) {
@ -3100,6 +3087,9 @@ static int smiapp_probe(struct i2c_client *client,
if (rval < 0)
goto out_media_entity_cleanup;
pm_runtime_set_active(&client->dev);
pm_runtime_get_noresume(&client->dev);
pm_runtime_enable(&client->dev);
pm_runtime_set_autosuspend_delay(&client->dev, 1000);
pm_runtime_use_autosuspend(&client->dev);
pm_runtime_put_autosuspend(&client->dev);
@ -3113,8 +3103,7 @@ out_cleanup:
smiapp_cleanup(sensor);
out_power_off:
pm_runtime_put(&client->dev);
pm_runtime_disable(&client->dev);
smiapp_power_off(&client->dev);
return rval;
}
@ -3127,8 +3116,10 @@ static int smiapp_remove(struct i2c_client *client)
v4l2_async_unregister_subdev(subdev);
pm_runtime_suspend(&client->dev);
pm_runtime_disable(&client->dev);
if (!pm_runtime_status_suspended(&client->dev))
smiapp_power_off(&client->dev);
pm_runtime_set_suspended(&client->dev);
for (i = 0; i < sensor->ssds_used; i++) {
v4l2_device_unregister_subdev(&sensor->ssds[i].sd);