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drm/i915/gen9: fail the modeset instead of WARNing on unsupported config
author
Paulo Zanoni
<paulo.r.zanoni@intel.com>
Thu, 22 Sep 2016 21:00:35 +0000
(18:00 -0300)
committer
Paulo Zanoni
<paulo.r.zanoni@intel.com>
Mon, 26 Sep 2016 19:55:08 +0000
(16:55 -0300)
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
drivers/gpu/drm/i915/intel_pm.c
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diff --git
a/drivers/gpu/drm/i915/intel_pm.c
b/drivers/gpu/drm/i915/intel_pm.c
index
d5e7738
..
5b47888
100644
(file)
--- a/
drivers/gpu/drm/i915/intel_pm.c
+++ b/
drivers/gpu/drm/i915/intel_pm.c
@@
-3580,11
+3580,12
@@
static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
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;