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

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Date:   Sat, 26 Nov 2022 16:28:22 +0530
From:   shravan kumar <shravanmicrochip@...il.com>
To:     Sakari Ailus <sakari.ailus@....fi>
Cc:     shravan kumar <shravan.chippa@...rochip.com>,
        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

On Fri, Nov 25, 2022 at 9:50 PM Sakari Ailus <sakari.ailus@....fi> wrote:
>
> 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?

Yes, These are different for different mods
default values are matching with 3840x2160@60 mode
if we change mode dynamically we need to take care. so added.

Thanks,
Shravan

>
> >
> > 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