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media: i2c: ov08x40: Drop system suspend and resume handlers

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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 21:16:57 +03:00 committed by Hans Verkuil
parent a1c4cca216
commit b8b84d7530
1 changed files with 0 additions and 40 deletions
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40
drivers/media/i2c/ov08x40.c
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@ -2432,9 +2432,6 @@ struct ov08x40 {
/* Mutex for serialized access */
struct mutex mutex;
/* Streaming on/off */
bool streaming;
};
#define to_ov08x40(_sd) container_of(_sd, struct ov08x40, sd)
@ -2933,7 +2930,6 @@ static int ov08x40_set_stream(struct v4l2_subdev *sd, int enable)
pm_runtime_put(&client->dev);
}
ov08x->streaming = enable;
mutex_unlock(&ov08x->mutex);
return ret;
@ -2946,37 +2942,6 @@ err_unlock:
return ret;
}
static int __maybe_unused ov08x40_suspend(struct device *dev)
{
struct v4l2_subdev *sd = dev_get_drvdata(dev);
struct ov08x40 *ov08x = to_ov08x40(sd);
if (ov08x->streaming)
ov08x40_stop_streaming(ov08x);
return 0;
}
static int __maybe_unused ov08x40_resume(struct device *dev)
{
struct v4l2_subdev *sd = dev_get_drvdata(dev);
struct ov08x40 *ov08x = to_ov08x40(sd);
int ret;
if (ov08x->streaming) {
ret = ov08x40_start_streaming(ov08x);
if (ret)
goto error;
}
return 0;
error:
ov08x40_stop_streaming(ov08x);
ov08x->streaming = false;
return ret;
}
/* Verify chip ID */
static int ov08x40_identify_module(struct ov08x40 *ov08x)
{
@ -3290,10 +3255,6 @@ static void ov08x40_remove(struct i2c_client *client)
pm_runtime_set_suspended(&client->dev);
}
static const struct dev_pm_ops ov08x40_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(ov08x40_suspend, ov08x40_resume)
};
#ifdef CONFIG_ACPI
static const struct acpi_device_id ov08x40_acpi_ids[] = {
{"OVTI08F4"},
@ -3306,7 +3267,6 @@ MODULE_DEVICE_TABLE(acpi, ov08x40_acpi_ids);
static struct i2c_driver ov08x40_i2c_driver = {
.driver = {
.name = "ov08x40",
.pm = &ov08x40_pm_ops,
.acpi_match_table = ACPI_PTR(ov08x40_acpi_ids),
},
.probe = ov08x40_probe,