linux-kernel - Re: [PATCH] media: rkisp1: Allow higher input resolution

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Message-ID: <pftafukuzq7qzbhlvwtmeg3mburnttylgy4246timlghtrdgx4@r6munvmj6oqt>
Date: Sun, 18 Feb 2024 22:01:52 +0100
From: Ondřej Jirman <megi@....cz>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: 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>, 
	Umang Jain <umang.jain@...asonboard.com>
Subject: Re: [PATCH] media: rkisp1: Allow higher input resolution

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)

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