linux-kernel - Re: [PATCH 5/5] media: i2c: alvium: Move V4L2_CID_GAIN to V4L2_CID_ANALOG

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Message-ID: <ZilLThyqHC2xi6tS@valkosipuli.retiisi.eu>
Date: Wed, 24 Apr 2024 18:11:26 +0000
From: Sakari Ailus <sakari.ailus@....fi>
To: Tommaso Merciai <tomm.merciai@...il.com>
Cc: martin.hecht@...et.eu, michael.roeder@...et.eu,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/5] media: i2c: alvium: Move V4L2_CID_GAIN to
 V4L2_CID_ANALOG_GAIN

Hi Tommaso,

On Tue, Apr 16, 2024 at 04:19:05PM +0200, Tommaso Merciai wrote:
> Into alvium cameras REG_BCRM_GAIN_RW control the analog gain.
> Let's use the right V4L2_CID_ANALOGUE_GAIN ctrl.
> 
> Signed-off-by: Tommaso Merciai <tomm.merciai@...il.com>
> ---
>  drivers/media/i2c/alvium-csi2.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/media/i2c/alvium-csi2.c b/drivers/media/i2c/alvium-csi2.c
> index 30ef9b905211..56d64f27df72 100644
> --- a/drivers/media/i2c/alvium-csi2.c
> +++ b/drivers/media/i2c/alvium-csi2.c
> @@ -1993,7 +1993,7 @@ static int alvium_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
>  	int val;
>  
>  	switch (ctrl->id) {
> -	case V4L2_CID_GAIN:
> +	case V4L2_CID_ANALOGUE_GAIN:
>  		val = alvium_get_gain(alvium);
>  		if (val < 0)
>  			return val;
> @@ -2025,7 +2025,7 @@ static int alvium_s_ctrl(struct v4l2_ctrl *ctrl)
>  		return 0;
>  
>  	switch (ctrl->id) {
> -	case V4L2_CID_GAIN:
> +	case V4L2_CID_ANALOGUE_GAIN:
>  		ret = alvium_set_ctrl_gain(alvium, ctrl->val);
>  		break;
>  	case V4L2_CID_AUTOGAIN:
> @@ -2154,7 +2154,7 @@ static int alvium_ctrl_init(struct alvium_dev *alvium)
>  
>  	if (alvium->avail_ft.gain) {
>  		ctrls->gain = v4l2_ctrl_new_std(hdl, ops,
> -						V4L2_CID_GAIN,
> +						V4L2_CID_ANALOGUE_GAIN,
>  						alvium->min_gain,
>  						alvium->max_gain,
>  						alvium->inc_gain,

This looks like a bugfix. Shouldn't it be cc'd to stable as well? A Fixes:
tag would be nice, too.

-- 
Regards,

Sakari Ailus