From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: Tarang Raval <tarang.raval@siliconsignals.io>
Cc: Kate Hsuan <hpa@redhat.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Hans de Goede <johannes.goede@oss.qualcomm.com>,
Hans Verkuil <hverkuil+cisco@kernel.org>,
Serin Yeh <serin.yeh@intel.com>,
Damjan Georgievski <gdamjan@gmail.com>,
"linux-media@vger.kernel.org" <linux-media@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v4 3/3] media: i2c: imx471: Add Sony IMX471 image sensor driver
Date: Thu, 11 Jun 2026 09:38:07 +0300 [thread overview]
Message-ID: <aipXzweeqf5cOD7h@kekkonen.localdomain> (raw)
In-Reply-To: <PN3P287MB182990C9DDF3BFF5CB356EFF8B1B2@PN3P287MB1829.INDP287.PROD.OUTLOOK.COM>
Hi Tarang,
On Thu, Jun 11, 2026 at 05:35:29AM +0000, Tarang Raval wrote:
> Hi Sakari,
>
> > On Wed, Jun 10, 2026 at 07:11:39AM +0000, Tarang Raval wrote:
> > > > + /* V4L2 controls values will be applied only when power is already up */
> > > > + if (!pm_runtime_get_if_in_use(sensor->dev))
> > >
> > > Use pm_runtime_get_if_active() or update the comment. With pm_runtime_get_if_in_use(),
> > > the comment should say "applied only when the device is in use".
> >
> > Using pm_runtime_get_if_active() would allow more sparing I²C writes, which
> > I understand the driver always does in enable_streams(). It's not a bug
> > though.
>
> Yes, you are right. My concern is only about the comment, as it does not accurately
> describe the behavior when using pm_runtime_get_if_in_use(). That's why I said either
> approach is fine, but if pm_runtime_get_if_in_use() is used, the comment should be
> updated accordingly.
I'd just drop the comment.
Please also don't use more than ~ 75 characters per line in e-mails.
--
Regards,
Sakari Ailus
next prev parent reply other threads:[~2026-06-11 6:38 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-09 12:49 [PATCH v4 0/3] Add Sony IMX471 camera sensor driver Kate Hsuan
2026-06-09 12:49 ` [PATCH v4 1/3] media: ipu-bridge: Add DMI information of Lenovo X9 to the image upside-down list Kate Hsuan
2026-06-10 21:59 ` Sakari Ailus
2026-06-11 7:25 ` Kate Hsuan
2026-06-11 8:24 ` Sakari Ailus
2026-06-11 9:41 ` Damjan Georgievski
2026-06-11 12:44 ` Sakari Ailus
2026-06-11 14:54 ` Mark Pearson
2026-06-12 6:58 ` Kate Hsuan
2026-06-11 9:42 ` Kate Hsuan
2026-06-11 12:42 ` Sakari Ailus
2026-06-09 12:49 ` [PATCH v4 2/3] media: ipu-bridge: Add Sony IMX471 for Lenovo X1 Carbon G14 Kate Hsuan
2026-06-09 12:49 ` [PATCH v4 3/3] media: i2c: imx471: Add Sony IMX471 image sensor driver Kate Hsuan
2026-06-10 7:11 ` Tarang Raval
2026-06-10 22:14 ` Sakari Ailus
2026-06-11 5:35 ` Tarang Raval
2026-06-11 6:38 ` Sakari Ailus [this message]
2026-06-11 6:46 ` Kate Hsuan
2026-06-11 7:29 ` Tarang Raval
2026-06-10 22:11 ` Sakari Ailus
2026-06-11 6:56 ` Kate Hsuan
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