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Message-ID: <b500676e-431f-40fc-868b-9f9bb359a109@ideasonboard.com>
Date: Mon, 19 Feb 2024 14:33:21 +0530
From: Umang Jain <umang.jain@...asonboard.com>
To: Adam Ford <aford173@...il.com>, Ondřej Jirman
 <megi@....cz>, Laurent Pinchart <laurent.pinchart@...asonboard.com>,
 linux-kernel@...r.kernel.org, Dafna Hirschfeld <dafna@...tmail.com>,
 Mauro Carvalho Chehab <mchehab@...nel.org>, Heiko Stuebner
 <heiko@...ech.de>,
 "open list:ROCKCHIP ISP V1 DRIVER" <linux-media@...r.kernel.org>,
 "open list:ROCKCHIP ISP V1 DRIVER" <linux-rockchip@...ts.infradead.org>,
 "moderated list:ARM/Rockchip SoC support"
 <linux-arm-kernel@...ts.infradead.org>,
 Paul Elder <paul.elder@...asonboard.com>
Subject: Re: [PATCH] media: rkisp1: Allow higher input resolution

Hi All,

On 19/02/24 7:39 am, Adam Ford wrote:
> On Sun, Feb 18, 2024 at 3:02 PM Ondřej Jirman <megi@....cz> wrote:
>> On Sun, Feb 18, 2024 at 10:59:08PM +0200, Laurent Pinchart wrote:
>>> Hi Ondrej,
>>>
>>> (CC'ing Paul and Umang)
>>>
>>> Thank you for the patch.
>>>
>>> On Sat, Feb 17, 2024 at 07:51:58PM +0100, Ondřej Jirman wrote:
>>>> From: Ondrej Jirman <megi@....cz>
>>>>
>>>> In BSP driver, it is allowed, and it works in practice. Tested on
>>>> Pinephone Pro/RK3399 with IMX258 at full res.
>>> Paul, Umang, do I recall correctly that you have a similar change ?
>>> Could you review and test this (especially on the i.MX8MP) ?
>> It's also a limit from the datasheet, so the change should not be that
>> controversial:
>>
>>    https://megous.com/dl/tmp/d2b333043ecebaf3.png
>>
>> (so that it doesn't sound like I just copied the BSP values)
>>
>  From what I see in the i.MX8M Plus reference manual, it has a max
> resolution of 4096x3072, so it might be necessary to move this off

This is what I (and I assume Paul too) have been working with on i.MX8M 
Plus. So it's the known and tested value of max ISP input from out side.
> from a #define into a structure that varies by product family.

Yeah!
>
> adam
>> regards,
>>          o.
>>
>>>> Signed-off-by: Ondrej Jirman <megi@....cz>
>>>> ---
>>>>   drivers/media/platform/rockchip/rkisp1/rkisp1-common.h | 4 ++--
>>>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>>>
>>>> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
>>>> index 4b6b28c05b89..74098ddbeeb3 100644
>>>> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
>>>> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
>>>> @@ -33,8 +33,8 @@ struct dentry;
>>>>   #define RKISP1_ISP_SD_SINK                 BIT(1)
>>>>
>>>>   /* min and max values for the widths and heights of the entities */
>>>> -#define RKISP1_ISP_MAX_WIDTH                       4032
>>>> -#define RKISP1_ISP_MAX_HEIGHT                      3024
>>>> +#define RKISP1_ISP_MAX_WIDTH                       4416
>>>> +#define RKISP1_ISP_MAX_HEIGHT                      3312
>>>>   #define RKISP1_ISP_MIN_WIDTH                       32
>>>>   #define RKISP1_ISP_MIN_HEIGHT                      32
>>>>
>>> --
>>> Regards,
>>>
>>> Laurent Pinchart


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