Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-23 04:31:50 +00:00
Code Issues Packages Projects Releases Wiki Activity

media: i2c: ov13858: Drop system suspend and resume handlers

Browse Source 
Stopping streaming on a camera pipeline at system suspend time, and
restarting it at system resume time, requires coordinated action between
the bridge driver and the camera sensor driver. This is handled by the
bridge driver calling the sensor's .s_stream() handler at system suspend
and resume time. There is thus no need for the sensor to independently
implement system sleep PM operations. Drop them.

The streaming field of the driver's private structure is now unused,
drop it as well.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Laurent Pinchart 2023-09-14 21:16:58 +03:00 committed by Hans Verkuil
parent b8b84d7530
commit f82344daa7
1 changed files with 0 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
drivers/media/i2c/ov13858.c
View File

@ -1044,9 +1044,6 @@ struct ov13858 {
/* Mutex for serialized access */
struct mutex mutex;
/* Streaming on/off */
bool streaming;
};
#define to_ov13858(_sd) container_of(_sd, struct ov13858, sd)
@ -1485,7 +1482,6 @@ static int ov13858_set_stream(struct v4l2_subdev *sd, int enable)
pm_runtime_put(&client->dev);
}
ov13858->streaming = enable;
mutex_unlock(&ov13858->mutex);
return ret;
@ -1498,37 +1494,6 @@ err_unlock:
return ret;
}
static int __maybe_unused ov13858_suspend(struct device *dev)
{
struct v4l2_subdev *sd = dev_get_drvdata(dev);
struct ov13858 *ov13858 = to_ov13858(sd);
if (ov13858->streaming)
ov13858_stop_streaming(ov13858);
return 0;
}
static int __maybe_unused ov13858_resume(struct device *dev)
{
struct v4l2_subdev *sd = dev_get_drvdata(dev);
struct ov13858 *ov13858 = to_ov13858(sd);
int ret;
if (ov13858->streaming) {
ret = ov13858_start_streaming(ov13858);
if (ret)
goto error;
}
return 0;
error:
ov13858_stop_streaming(ov13858);
ov13858->streaming = false;
return ret;
}
/* Verify chip ID */
static int ov13858_identify_module(struct ov13858 *ov13858)
{
@ -1783,10 +1748,6 @@ static const struct i2c_device_id ov13858_id_table[] = {
MODULE_DEVICE_TABLE(i2c, ov13858_id_table);
static const struct dev_pm_ops ov13858_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(ov13858_suspend, ov13858_resume)
};
#ifdef CONFIG_ACPI
static const struct acpi_device_id ov13858_acpi_ids[] = {
{"OVTID858"},
@ -1799,7 +1760,6 @@ MODULE_DEVICE_TABLE(acpi, ov13858_acpi_ids);
static struct i2c_driver ov13858_i2c_driver = {
.driver = {
.name = "ov13858",
.pm = &ov13858_pm_ops,
.acpi_match_table = ACPI_PTR(ov13858_acpi_ids),
},
.probe = ov13858_probe,