linux-kernel - Re: [PATCH] media: ov8865: move mode_configure out of state

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAEs41JCctnTgwY-ePrB+kwY7nUvJuMAttZ894PzhL-b_SF7uNQ@mail.gmail.com>
Date: Wed, 23 Jul 2025 09:40:42 -0700
From: Allen Ballway <ballway@...omium.org>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: Hans de Goede <hansg@...nel.org>, Sakari Ailus <sakari.ailus@...ux.intel.com>, 
	Mauro Carvalho Chehab <mchehab@...nel.org>, linux-media@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] media: ov8865: move mode_configure out of state_configure

On Wed, Jul 23, 2025 at 8:47 AM Laurent Pinchart
<laurent.pinchart@...asonboard.com> wrote:
>
> On Tue, Jul 22, 2025 at 01:35:43PM -0700, Allen Ballway wrote:
> > ov8865_mode_configure() only needs to be called on sensor init, but it can
> > be called multiple times from ov8865_state_configure(). Move
> > ov8865_mode_configure() to ov8865_sensor_init().
> >
> > Signed-off-by: Allen Ballway <ballway@...omium.org>
> > ---
> >  drivers/media/i2c/ov8865.c | 15 +++++++--------
> >  1 file changed, 7 insertions(+), 8 deletions(-)
> >
> > diff --git a/drivers/media/i2c/ov8865.c b/drivers/media/i2c/ov8865.c
> > index 95ffe7536aa6aba814f4e5c3d12e7279470b2f07..1d1a1f261bf4ab5c09848402dc057e2f572504e7 100644
> > --- a/drivers/media/i2c/ov8865.c
> > +++ b/drivers/media/i2c/ov8865.c
> > @@ -2304,14 +2304,6 @@ static int ov8865_state_configure(struct ov8865_sensor *sensor,
> >       if (sensor->state.streaming)
> >               return -EBUSY;
> >
> > -     /* State will be configured at first power on otherwise. */
> > -     if (pm_runtime_enabled(sensor->dev) &&
> > -         !pm_runtime_suspended(sensor->dev)) {
> > -             ret = ov8865_mode_configure(sensor, mode, mbus_code);
> > -             if (ret)
> > -                     return ret;
> > -     }
> > -
> >       ret = ov8865_state_mipi_configure(sensor, mode, mbus_code);
> >       if (ret)
> >               return ret;
> > @@ -2384,6 +2376,13 @@ static int ov8865_sensor_init(struct ov8865_sensor *sensor)
> >       }
> >
> >       /* Configure current mode. */
> > +     ret = ov8865_mode_configure(sensor, sensor->state.mode,
> > +                                  sensor->state.mbus_code);
>
> How about the implication on ov8865_set_fmt() that will not update the
> link freq and pixel rate controls anymore ?
>
I believe those will be unaffected by this change, they are updated in
ov8865_state_mipi_configure() which is still called from
ov8865_set_fmt() via ov8865_state_configure().

Thanks,
Allen
> > +     if (ret) {
> > +             dev_err(sensor->dev, "failed to configure mode\n");
> > +             return ret;
> > +     }
> > +
> >       ret = ov8865_state_configure(sensor, sensor->state.mode,
> >                                    sensor->state.mbus_code);
> >       if (ret) {
> >
> > ---
> > base-commit: 6832a9317eee280117cd695fa885b2b7a7a38daf
> > change-id: 20250722-mode_configure-80105fbd835d
>
> --
> Regards,
>
> Laurent Pinchart