linux-kernel - Re: [PATCH v5 4/6] media: i2c: imx334: add default values in 3840x2160@60 array

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Date:   Fri, 25 Nov 2022 18:02:07 +0200
From:   Sakari Ailus <sakari.ailus@....fi>
To:     shravan kumar <shravan.chippa@...rochip.com>
Cc:     paul.j.murphy@...el.com, daniele.alessandrelli@...el.com,
        mchehab@...nel.org, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 4/6] media: i2c: imx334: add default values in
 3840x2160@60 array

Hi Shravan,

On Fri, Nov 25, 2022 at 10:38:05AM +0530, shravan kumar wrote:
> From: Shravan Chippa <shravan.chippa@...rochip.com>
> 
> -If we have only one mode there is no need to update camera
> reset(default) values when we initialize the camera

How is this related to the patch?

> 
> -If we have mutipull modes in this case we need all value to
> write while camera initializing, so i will not effect other modes
> while shifting dynamically
> 
> -All default values for 3840x2160@60 updated becouse if we change
> the mode we will not be able to recover the values, so add in
> mode_3840x2160_regs[] array

Please remove dashes in front of the paragrahs and use period in the end of
sentences.

Are these registers' values specific to this mode or are they different on
different modes?

> 
> Signed-off-by: Shravan Chippa <shravan.chippa@...rochip.com>
> ---
>  drivers/media/i2c/imx334.c | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/drivers/media/i2c/imx334.c b/drivers/media/i2c/imx334.c
> index d3bb62c162b3..cd41df56ab7d 100644
> --- a/drivers/media/i2c/imx334.c
> +++ b/drivers/media/i2c/imx334.c
> @@ -166,6 +166,7 @@ static const struct imx334_reg mode_3840x2160_regs[] = {
>  	{0x3288, 0x21},
>  	{0x328a, 0x02},
>  	{0x302c, 0x3c},
> +	{0x302d, 0x00},
>  	{0x302e, 0x00},
>  	{0x302f, 0x0f},
>  	{0x3076, 0x70},
> @@ -240,7 +241,26 @@ static const struct imx334_reg mode_3840x2160_regs[] = {
>  	{0x3794, 0x7a},
>  	{0x3796, 0xa1},
>  	{0x3e04, 0x0e},
> +	{0x319e, 0x00},
>  	{0x3a00, 0x01},
> +	{0x3A18, 0xBF},
> +	{0x3A19, 0x00},
> +	{0x3A1A, 0x67},
> +	{0x3A1B, 0x00},
> +	{0x3A1C, 0x6F},
> +	{0x3A1D, 0x00},
> +	{0x3A1E, 0xD7},
> +	{0x3A1F, 0x01},
> +	{0x3A20, 0x6F},
> +	{0x3A21, 0x00},
> +	{0x3A22, 0xCF},
> +	{0x3A23, 0x00},
> +	{0x3A24, 0x6F},
> +	{0x3A25, 0x00},
> +	{0x3A26, 0xB7},
> +	{0x3A27, 0x00},
> +	{0x3A28, 0x5F},
> +	{0x3A29, 0x00},
>  };
>  
>  /* Supported sensor mode configurations */

-- 
Kind regards,

Sakari Ailus