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From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: Tarang Raval <tarang.raval@siliconsignals.io>
Cc: mehdi.djait@linux.intel.com,
	Himanshu Bhavani <himanshu.bhavani@siliconsignals.io>,
	Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	linux-media@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 11/13] media: i2c: os05b10: Update active format before adjusting framing controls
Date: Fri, 6 Mar 2026 15:36:44 +0200	[thread overview]
Message-ID: <aarYbAf8jnodZ4UV@kekkonen.localdomain> (raw)
In-Reply-To: <20260306123304.76722-12-tarang.raval@siliconsignals.io>

Hi Tarang,

On Fri, Mar 06, 2026 at 06:03:01PM +0530, Tarang Raval wrote:
> os05b10_set_pad_format() calls os05b10_set_framing_limits() before updating
> the ACTIVE format. As a result, the VBLANK control handler uses the old
> height when recalculating exposure limits, causing -ERANGE when switching
> to a larger resolution.
> 
> Update the ACTIVE format before adjusting framing controls so control
> callbacks use the correct dimensions.
> 
> Signed-off-by: Tarang Raval <tarang.raval@siliconsignals.io>
> ---
>  drivers/media/i2c/os05b10.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/media/i2c/os05b10.c b/drivers/media/i2c/os05b10.c
> index 4601e33b7e8f..476dbcb49351 100644
> --- a/drivers/media/i2c/os05b10.c
> +++ b/drivers/media/i2c/os05b10.c
> @@ -902,14 +902,14 @@ static int os05b10_set_pad_format(struct v4l2_subdev *sd,
>  
>  	format = v4l2_subdev_state_get_format(sd_state, 0);
>  
> +	*format = fmt->format;
> +
>  	if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
>  		ret = os05b10_set_framing_limits(os05b10, mode);

Does it take a driver bug for this to happen? Presumably? I guess the
result would be somewhat inconsistent state in any case.

>  		if (ret)
>  			return ret;
>  	}
>  
> -	*format = fmt->format;
> -
>  	return 0;
>  }
>  

-- 
Regards,

Sakari Ailus

  reply	other threads:[~2026-03-06 13:36 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-06 12:32 [PATCH 00/13] media: i2c: os05b10: Refactor driver and Add new features Tarang Raval
2026-03-06 12:32 ` [PATCH 01/13] media: i2c: os05b10: drop unused group-hold programming Tarang Raval
2026-03-06 12:32 ` [PATCH 02/13] media: i2c: os05b10: add register definitions and use them in init table Tarang Raval
2026-03-06 12:32 ` [PATCH 03/13] media: i2c: os05b10: split common and mode-specific init registers Tarang Raval
2026-03-06 12:32 ` [PATCH 04/13] media: i2c: os05b10: add V4L2 digital gain control Tarang Raval
2026-03-06 12:32 ` [PATCH 05/13] media: i2c: os05b10: Add H/V flip support Tarang Raval
2026-03-06 12:32 ` [PATCH 06/13] media: i2c: os05b10: Add test pattern options Tarang Raval
2026-03-06 12:32 ` [PATCH 07/13] media: i2c: os05b10: add 12-bit RAW mode support Tarang Raval
2026-03-06 12:32 ` [PATCH 08/13] media: i2c: os05b10: update pixel rate on 10/12-bit mode switch Tarang Raval
2026-03-06 12:32 ` [PATCH 09/13] media: i2c: os05b10: Add 1080p and 2x2 binning 720p modes Tarang Raval
2026-03-06 12:33 ` [PATCH 10/13] media: i2c: os05b10: keep vblank/exposure in sync on mode switch Tarang Raval
2026-03-06 13:35   ` Sakari Ailus
2026-03-07  5:28     ` Tarang Raval
2026-03-06 12:33 ` [PATCH 11/13] media: i2c: os05b10: Update active format before adjusting framing controls Tarang Raval
2026-03-06 13:36   ` Sakari Ailus [this message]
2026-03-07  5:22     ` Tarang Raval
2026-03-09  8:19       ` Tarang Raval
2026-03-24 16:31   ` Tarang Raval
2026-03-25  8:56     ` sakari.ailus
2026-03-25  9:05       ` Tarang Raval
2026-03-06 12:33 ` [PATCH 12/13] media: i2c: os05b10: Rename vmax variable in VBLANK control Tarang Raval
2026-03-06 12:33 ` [PATCH 13/13] media: i2c: os05b10: add 2-lane support Tarang Raval
2026-03-07  1:56   ` kernel test robot

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