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drm/simpledrm: Compute linestride with drm_format_info_min_pitch()

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If not given, compute the stride with drm_format_info_min_pitch(). It's
the standard helper for this purpose.

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Fixes: fd9e3169e4 ("drm/simpledrm: Compute framebuffer stride if not set")
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20220922130944.27138-2-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2022-09-22 15:09:40 +02:00
parent c7bcc1056c
commit 7bfa5c7b28
1 changed files with 5 additions and 2 deletions
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7
drivers/gpu/drm/tiny/simpledrm.c
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@ -687,8 +687,11 @@ static struct simpledrm_device *simpledrm_device_create(struct drm_driver *drv,
drm_err(dev, "no simplefb configuration found\n"); drm_err(dev, "no simplefb configuration found\n");
return ERR_PTR(-ENODEV); return ERR_PTR(-ENODEV);
} }
if (!stride) if (!stride) {
stride = DIV_ROUND_UP(drm_format_info_bpp(format, 0) * width, 8); stride = drm_format_info_min_pitch(format, 0, width);
if (drm_WARN_ON(dev, !stride))
return ERR_PTR(-EINVAL);
}
sdev->mode = simpledrm_mode(width, height); sdev->mode = simpledrm_mode(width, height);
sdev->format = format; sdev->format = format;