From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: Kate Hsuan <hpa@redhat.com>
Cc: Jai Luthra <jai.luthra@ideasonboard.com>,
Hans de Goede <hansg@kernel.org>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Serin Yeh <serin.yeh@intel.com>,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] media: i2c: imx471: Add line length PCK setting
Date: Tue, 28 Jul 2026 15:34:30 +0300 [thread overview]
Message-ID: <amih1psHfejzUs55@kekkonen.localdomain> (raw)
In-Reply-To: <CAEth8oEhDR_2UqNiiW2EaUYGGeR9NbkFWidQBXB0Hc+m4sbTbQ@mail.gmail.com>
Hi Kate,
On Tue, Jul 28, 2026 at 04:33:38PM +0800, Kate Hsuan wrote:
> Good suggestion. I'll try to tune vblank and possible configs and hope it works.
> I scratched my head trying to find the solutions and now I can focus
> on tuning the parameter to fix the issue.
Horizontal blanking is likely to affect image defects whereas vertical
blanking can be used to adjust the frame rate. If changing the horizontal
blanking does have that effect, we should probably think of using a fixed
value for it. Then the question is what is that value and what does it
depend on (likely PLL configuration and external clock frequency, possibly
binning etc.).
--
Regards,
Sakari Ailus
prev parent reply other threads:[~2026-07-28 12:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-28 4:20 Kate Hsuan
2026-07-28 5:27 ` Jai Luthra
2026-07-28 6:54 ` Kate Hsuan
2026-07-28 7:51 ` Sakari Ailus
2026-07-28 8:33 ` Kate Hsuan
2026-07-28 12:34 ` Sakari Ailus [this message]
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