linux-kernel - Re: Re: [PATCH] drm/sun4i: mixer: fix scanline for V3s and D1

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Date:   Tue, 24 May 2022 21:08:53 +0200
From:   Jernej Škrabec <jernej.skrabec@...il.com>
To:     mripard <mripard@...nel.org>, wens <wens@...e.org>,
        "benlypan@...il.com" <benlypan@...il.com>
Cc:     airlied <airlied@...ux.ie>, daniel <daniel@...ll.ch>,
        samuel <samuel@...lland.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-sunxi <linux-sunxi@...ts.linux.dev>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Re: [PATCH] drm/sun4i: mixer: fix scanline for V3s and D1

Dne nedelja, 22. maj 2022 ob 12:48:27 CEST je benlypan@...il.com napisal(a):
> Hi Jernej!
> 
> > Which SDK? All SDKs that I have or found on internet don't mention YUV nor 
RGB
> > scanline limit. That doesn't mean there is none, I'm just unable to verify
> > your claim. Did you test this by yourself? Also, please make YUV scanline
> > change separate patch with fixes tag.
> 
> Here is the code about scanline config for V3s:
> https://github.com/Tina-Linux/tina-v3s-linux-4.9/blob/master/drivers/video/
fbdev/sunxi/disp2/disp/de/lowlevel_sun8iw8/de_feat.c#L55
> https://github.com/Tina-Linux/tina-v3s-linux-4.9/blob/master/drivers/video/
fbdev/sunxi/disp2/disp/de/lowlevel_sun8iw8/de_rtmx.c#L1212
> 
> And here is for D1:
> https://gitlab.com/weidongshan/tina-d1-h/-/blob/main/lichee/linux-5.4/
drivers/video/fbdev/sunxi/disp2/disp/de/lowlevel_v2x/de_feat.c#L182
> https://gitlab.com/weidongshan/tina-d1-h/-/blob/main/lichee/linux-5.4/
drivers/video/fbdev/sunxi/disp2/disp/de/lowlevel_v2x/de_rtmx.c#L1588

Thanks for the links!

> 
> I was tested it on V3s. Without this patch, the plane will not display
> correctly if src_w large than 1024, for both YUV and RGB. I don't have a
> device with D1, so D1 is not tested. But according to the SDK code of D1,
> the scanline value of mixer1 is 1024.
> 
> I'm new to submitting patches, So may I ask a question? If there is no
> problem with this patch, what I need to do is to send new patches as you
> suggested?

https://www.kernel.org/doc/html/latest/process/submitting-patches.html

I already requested changes, so you need to send v2. But wait until discussion 
is finished.

Best regards,
Jernej

> 
> Best regards,
> Genfu Pan
> 
>