linux-kernel - Re: [PATCH v2] media: ov8856: Configure sensor for GRBG Bayer for all modes

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Message-ID: <CAG3jFyvymhoMdewsWg6inTdoBYDEBmCjfnPm-d8E+-9H1OcL6w@mail.gmail.com>
Date:   Mon, 11 Jan 2021 13:03:55 +0100
From:   Robert Foss <robert.foss@...aro.org>
To:     Dongchun Zhu <dongchun.zhu@...iatek.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media <linux-media@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Bingbu Cao <bingbu.cao@...ux.intel.com>,
        Andrey Konovalov <andrey.konovalov@...aro.org>
Cc:     Tomasz Figa <tfiga@...gle.com>
Subject: Re: [PATCH v2] media: ov8856: Configure sensor for GRBG Bayer for all modes

Darn, this should have been sent out as v3.

On Mon, 11 Jan 2021 at 13:00, Robert Foss <robert.foss@...aro.org> wrote:
>
> The previously added modes 3264x2448 & 1632x1224 are actually
> configuring the sensor for BGGR mode, this is an issue since
> the mode that is exposed through V4L incorrectly is set as GRBG.
>
> This patch fixes the issue by configuring the sensor to always
> output GRBG Bayer formatted frames.
>
> Signed-off-by: Robert Foss <robert.foss@...aro.org>
> Suggested-by: Andrey Konovalov <andrey.konovalov@...aro.org>
> ---
>
>
> Changes since v1:
>  - Sakari: Added mode information to ov8856_mode struct
>  - Sakari: enum_mbus_code updated
>
> Changes since v2:
>  - Andrey: Switched approach to changing the sensor configuration
>    to yield identical Bayer modes for all modes
>
>
>  drivers/media/i2c/ov8856.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/i2c/ov8856.c b/drivers/media/i2c/ov8856.c
> index 2f4ceaa80593..8a355135c7db 100644
> --- a/drivers/media/i2c/ov8856.c
> +++ b/drivers/media/i2c/ov8856.c
> @@ -428,7 +428,7 @@ static const struct ov8856_reg mode_3264x2448_regs[] = {
>         {0x3810, 0x00},
>         {0x3811, 0x04},
>         {0x3812, 0x00},
> -       {0x3813, 0x02},
> +       {0x3813, 0x01},
>         {0x3814, 0x01},
>         {0x3815, 0x01},
>         {0x3816, 0x00},
> @@ -821,7 +821,7 @@ static const struct ov8856_reg mode_1632x1224_regs[] = {
>         {0x3810, 0x00},
>         {0x3811, 0x02},
>         {0x3812, 0x00},
> -       {0x3813, 0x02},
> +       {0x3813, 0x01},
>         {0x3814, 0x03},
>         {0x3815, 0x01},
>         {0x3816, 0x00},
> --
> 2.27.0
>