linux-kernel - Re:Re: [PATCH v5 08/18] drm/rockchip: vop2: Add check for 32 bpp format

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Message-ID: <3576a3c5.6d72.193af5fcafb.Coremail.andyshrk@163.com>
Date: Tue, 10 Dec 2024 15:01:50 +0800 (CST)
From: "Andy Yan" <andyshrk@....com>
To: "Daniel Stone" <daniel@...ishbar.org>
Cc: heiko@...ech.de, hjc@...k-chips.com, krzk+dt@...nel.org, 
	s.hauer@...gutronix.de, devicetree@...r.kernel.org, 
	dri-devel@...ts.freedesktop.org, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	linux-rockchip@...ts.infradead.org, derek.foreman@...labora.com, 
	detlev.casanova@...labora.com, "Andy Yan" <andy.yan@...k-chips.com>
Subject: Re:Re: [PATCH v5 08/18] drm/rockchip: vop2: Add check for 32 bpp
 format


Hi Daniel,

At 2024-12-10 01:06:05, "Daniel Stone" <daniel@...ishbar.org> wrote:
>Hi Andy,
>
>On Mon, 9 Dec 2024 at 12:32, Andy Yan <andyshrk@....com> wrote:
>> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
>> index bd8db45eeba6..1f101a3c3942 100644
>> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
>> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
>> @@ -1224,7 +1224,15 @@ static int vop2_plane_atomic_check(struct drm_plane *plane,
>>                                 return -EINVAL;
>>                         }
>>                 }
>> +       }
>>
>> +       if (fb->format->format == DRM_FORMAT_XRGB2101010 || fb->format->format == DRM_FORMAT_XBGR2101010) {
>> +               if (vop2->data->soc_id == 3588) {
>> +                       if (!rockchip_afbc(plane, fb->modifier)) {
>> +                               drm_err(vop2->drm, "Unsupported linear 32 bpp for %s\n", win->data->name);
>> +                               return -EINVAL;
>> +                       }
>> +               }
>
>Please do this in the format_mod_supported() hook, so userspace can
>see the true support of each format/modifier per plane. This will then
>be checked in drm_atomic_plane_check() so you don't need to open-code
>it here.

Thanks, will do in V6.

>
>Cheers,
>Daniel