media: i2c: imx319: Drop system suspend and resume handlers

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>

diff --git a/drivers/media/i2c/imx319.c b/drivers/media/i2c/imx319.c
index 935bcbacd62e12243934bff71f0ec9ee4a83c241..5378f607f34017a616ebc7150e4fa718b2dda83f 100644 (file)
--- a/drivers/media/i2c/imx319.c
+++ b/drivers/media/i2c/imx319.c
@@ -138,8 +138,6 @@ struct imx319 {
         */
        struct mutex mutex;
 
-       /* Streaming on/off */
-       bool streaming;
        /* True if the device has been identified */
        bool identified;
 };
@@ -2184,8 +2182,6 @@ static int imx319_set_stream(struct v4l2_subdev *sd, int enable)
                pm_runtime_put(&client->dev);
        }
 
-       imx319->streaming = enable;
-
        /* vflip and hflip cannot change during streaming */
        __v4l2_ctrl_grab(imx319->vflip, enable);
        __v4l2_ctrl_grab(imx319->hflip, enable);
@@ -2202,37 +2198,6 @@ err_unlock:
        return ret;
 }
 
-static int __maybe_unused imx319_suspend(struct device *dev)
-{
-       struct v4l2_subdev *sd = dev_get_drvdata(dev);
-       struct imx319 *imx319 = to_imx319(sd);
-
-       if (imx319->streaming)
-               imx319_stop_streaming(imx319);
-
-       return 0;
-}
-
-static int __maybe_unused imx319_resume(struct device *dev)
-{
-       struct v4l2_subdev *sd = dev_get_drvdata(dev);
-       struct imx319 *imx319 = to_imx319(sd);
-       int ret;
-
-       if (imx319->streaming) {
-               ret = imx319_start_streaming(imx319);
-               if (ret)
-                       goto error;
-       }
-
-       return 0;
-
-error:
-       imx319_stop_streaming(imx319);
-       imx319->streaming = 0;
-       return ret;
-}
-
 static const struct v4l2_subdev_core_ops imx319_subdev_core_ops = {
        .subscribe_event = v4l2_ctrl_subdev_subscribe_event,
        .unsubscribe_event = v4l2_event_subdev_unsubscribe,
@@ -2538,10 +2503,6 @@ static void imx319_remove(struct i2c_client *client)
        mutex_destroy(&imx319->mutex);
 }
 
-static const struct dev_pm_ops imx319_pm_ops = {
-       SET_SYSTEM_SLEEP_PM_OPS(imx319_suspend, imx319_resume)
-};
-
 static const struct acpi_device_id imx319_acpi_ids[] __maybe_unused = {
        { "SONY319A" },
        { /* sentinel */ }
@@ -2551,7 +2512,6 @@ MODULE_DEVICE_TABLE(acpi, imx319_acpi_ids);
 static struct i2c_driver imx319_i2c_driver = {
        .driver = {
                .name = "imx319",
-               .pm = &imx319_pm_ops,
                .acpi_match_table = ACPI_PTR(imx319_acpi_ids),
        },
        .probe = imx319_probe,