drm/tegra: fb: Add diagnostics for framebuffer modifiers

thierryreding · thierryreding · commit 4def888d4158 · 2021-03-31T17:42:14.000+02:00
Add a debug message to let the user know when a framebuffer modifier is
not supported.

Signed-off-by: Thierry Reding &lt;treding@nvidia.com&gt;
diff --git a/drivers/gpu/drm/tegra/fb.c b/drivers/gpu/drm/tegra/fb.c
@@ -86,6 +86,7 @@ int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
 		break;
 
 	default:
+		DRM_DEBUG_KMS("unknown format modifier: %llx\n", modifier);
 		return -EINVAL;
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -86,6 +86,7 @@ int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,`
`86`	`86`	`break;`
`87`	`87`
`88`	`88`	`default:`
	`89`	`+ DRM_DEBUG_KMS("unknown format modifier: %llx\n", modifier);`
`89`	`90`	`return -EINVAL;`
`90`	`91`	`}`
`91`	`92`