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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

  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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