Messages in this thread | | | Date | Mon, 31 Aug 2020 23:48:33 +0300 | From | Sakari Ailus <> | Subject | Re: [PATCH v4 4/4] media: i2c: imx274: Add IMX274 power on and off sequence |
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On Mon, Aug 31, 2020 at 01:46:00PM -0700, Sowjanya Komatineni wrote: > > On 8/31/20 1:23 PM, Sakari Ailus wrote: > > > @@ -1968,19 +2087,45 @@ static int imx274_remove(struct i2c_client *client) > > > struct v4l2_subdev *sd = i2c_get_clientdata(client); > > > struct stimx274 *imx274 = to_imx274(sd); > > > + pm_runtime_get_sync(&imx274->client->dev); > > > + > > > /* stop stream */ > > This really shouldn't happen and the driver isn't expected to handle it > > either. > > Do you mean to remove stop stream during remove()? > > Stop stream is not part of this change and as writes to sensor can't happen > when power off, added pm_runtime_get_sync
Indeed.
But there certainly isn't a need to power the sensor on to stream off, is there?
> > > > imx274_write_table(imx274, imx274_stop); > > > v4l2_async_unregister_subdev(sd); > > > v4l2_ctrl_handler_free(&imx274->ctrls.handler); > > > + > > > + pm_runtime_put(&client->dev); > > > + pm_runtime_disable(&client->dev); > > > + pm_runtime_set_suspended(&client->dev); > > > + > > > media_entity_cleanup(&sd->entity); > > > mutex_destroy(&imx274->lock); > > > return 0; > > > }
-- Sakari Ailus
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