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drm/format-helper: Print warning on missing format conversion
author
Thomas Zimmermann
<tzimmermann@suse.de>
Mon, 25 Apr 2022 07:59:37 +0000
(09:59 +0200)
committer
Thomas Zimmermann
<tzimmermann@suse.de>
Wed, 27 Apr 2022 06:51:47 +0000
(08:51 +0200)
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
drivers/gpu/drm/drm_format_helper.c
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diff --git
a/drivers/gpu/drm/drm_format_helper.c
b/drivers/gpu/drm/drm_format_helper.c
index
0e71351
..
b648f29
100644
(file)
--- a/
drivers/gpu/drm/drm_format_helper.c
+++ b/
drivers/gpu/drm/drm_format_helper.c
@@
-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);