From a714617559b159359dc8c8feb7b94e75cfce6508 Mon Sep 17 00:00:00 2001
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: Mon, 25 Apr 2022 09:59:37 +0200
Subject: drm/format-helper: Print warning on missing format conversion
Git-commit: 7e553e2ab79a13511bb84559287c06db80a461b1
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
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
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/drm_format_helper.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c
index 0e7135114728..b648f29b21b6 100644
--- 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);
--
2.38.1