drm/i915/gen9: fail the modeset instead of WARNing on unsupported config
Now that this code is part of the compute stage we can return -EINVAL
to prevent the modeset instead of giving a WARN and trying anyway.
v2:
- Fix typo (Paul Menzel).
- Add MISSING_CASE() (Ville, Maarten).
Reported-by: Lyude <cpaul@redhat.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1474578035-424-10-git-send-email-paulo.r.zanoni@intel.com
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index d5e7738..5b47888 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3580,11 +3580,12 @@
case 2:
y_min_scanlines = 8;
break;
- default:
- WARN(1, "Unsupported pixel depth for rotation");
case 4:
y_min_scanlines = 4;
break;
+ default:
+ MISSING_CASE(cpp);
+ return -EINVAL;
}
} else {
y_min_scanlines = 4;