linux-kernel - Re: [PATCH v2 5/8] drm/client: Convert drm_client_buffer_addfb() to drm_mode

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Message-ID: <CAPj87rNr7PTcquaz+VzwmXh0mSWSSK25_Fa6uxC2VOfj=wMmcQ@mail.gmail.com>
Date:   Thu, 24 Aug 2023 16:11:59 +0100
From:   Daniel Stone <daniel@...ishbar.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Javier Martinez Canillas <javierm@...hat.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v2 5/8] drm/client: Convert drm_client_buffer_addfb() to drm_mode_addfb2()

Hi Geert,

On Thu, 24 Aug 2023 at 16:09, Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>         struct drm_client_dev *client = buffer->client;
> -       struct drm_mode_fb_cmd fb_req = { };
> -       const struct drm_format_info *info;
> +       struct drm_mode_fb_cmd2 fb_req = { };
>         int ret;
>
> -       info = drm_format_info(format);
> -       fb_req.bpp = drm_format_info_bpp(info, 0);
> -       fb_req.depth = info->depth;
>         fb_req.width = width;
>         fb_req.height = height;
> -       fb_req.handle = handle;
> -       fb_req.pitch = buffer->pitch;
> +       fb_req.pixel_format = format;
> +       fb_req.handles[0] = handle;
> +       fb_req.pitches[0] = buffer->pitch;
>
> -       ret = drm_mode_addfb(client->dev, &fb_req, client->file);
> +       ret = drm_mode_addfb2(client->dev, &fb_req, client->file);
>         if (ret)
>                 return ret;

This should explicitly set the LINEAR modifier (and the modifier flag)
if the driver supports modifiers.

Cheers,
Daniel