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drm/format-helper: Print warning on missing format conversion

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Not all possible format conversions are supported yet. Print a
warning on unsupported combinations.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220425075939.30450-2-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2022-04-25 09:59:37 +02:00
parent e87826efa9
commit 7e553e2ab7
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/drm_format_helper.c
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@ -590,6 +590,9 @@ int drm_fb_blit_toio(void __iomem *dst, unsigned int dst_pitch, uint32_t dst_for
}
}
drm_warn_once(fb->dev, "No conversion helper from %p4cc to %p4cc found.\n",
&fb_format, &dst_format);
return -EINVAL;
}
EXPORT_SYMBOL(drm_fb_blit_toio);