linux-kernel - Re: [PATCH] media: ov5640: add missing v4l2_subdev_init

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Message-ID: <20231124190636.GA15686@pendragon.ideasonboard.com>
Date:   Fri, 24 Nov 2023 21:06:36 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Tommaso Merciai <tomm.merciai@...il.com>
Cc:     linuxfancy@...glegroups.com,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Steve Longerbeam <slongerbeam@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] media: ov5640: add missing v4l2_subdev_init_finalize

On Fri, Nov 24, 2023 at 08:02:07PM +0100, Tommaso Merciai wrote:
> On Fri, Nov 24, 2023 at 07:49:13PM +0100, Tommaso Merciai wrote:
> > After the ov5640 configurations steps let's add v4l2_subdev_init_finalize
> > that finalizes the initialization of the subdevice.
> > 
> > References:
> >  - https://linuxtv.org/downloads/v4l-dvb-apis/driver-api/v4l2-subdev.html
> > 
> > Signed-off-by: Tommaso Merciai <tomm.merciai@...il.com>
> > ---
> >  drivers/media/i2c/ov5640.c | 6 ++++++
> >  1 file changed, 6 insertions(+)
> > 
> > diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
> > index 3f79a3b77044..338eea802ab8 100644
> > --- a/drivers/media/i2c/ov5640.c
> > +++ b/drivers/media/i2c/ov5640.c
> > @@ -3924,6 +3924,12 @@ static int ov5640_probe(struct i2c_client *client)
> >  	if (ret)
> >  		goto entity_cleanup;
> >  
> > +	ret = v4l2_subdev_init_finalize(&sensor->sd);
> > +	if (ret < 0) {
> > +		dev_err(dev, "subdev init error: %d\n", ret);
> > +		goto entity_cleanup;
> > +	}
> > +
> >  	ret = ov5640_sensor_resume(dev);
> >  	if (ret) {
> >  		dev_err(dev, "failed to power on\n");
> 
> Ignore this patch please. I forget the cleanup part.

And you also forgot the conversion to the V4L2 subdev active state API
:-) See commit e8a5b1df000e ("media: i2c: imx219: Use subdev active
state") for an example.

-- 
Regards,

Laurent Pinchart