commit fffda3f4fb49d2874055b10512045e9fd56b90ae
author Jani Nikula <jani.nikula@intel.com> Tue Oct 20 15:22:01 2015 +0300
committer Jani Nikula <jani.nikula@intel.com> Wed Oct 21 11:25:01 2015 +0300
tree 89b660f95ae9cbcb591c91fe35900947721bdfb8
parent ef712bb4b700c60a047350d3747563a0bbcc3b13

drm/i915/bxt: add revision id for A1 stepping and use it

Prefer inclusive ranges for revision checks rather than "below B0". Per
specs A2 is not used, so revid <= A1 matches revid < B0.

Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1445343722-3312-2-git-send-email-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drivers/gpu/drm/i915/i915_guc_submission.c

diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index 036b42b..863aa5c 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -161,7 +161,7 @@
 	data[0] = HOST2GUC_ACTION_SAMPLE_FORCEWAKE;
 	/* WaRsDisableCoarsePowerGating:skl,bxt */
 	if (!intel_enable_rc6(dev_priv->dev) ||
-	    (IS_BROXTON(dev) && (INTEL_REVID(dev) < BXT_REVID_B0)) ||
+	    (IS_BROXTON(dev) && (INTEL_REVID(dev) <= BXT_REVID_A1)) ||
 	    (IS_SKL_GT3(dev) && (INTEL_REVID(dev) <= SKL_REVID_E0)) ||
 	    (IS_SKL_GT4(dev) && (INTEL_REVID(dev) <= SKL_REVID_E0)))
 		data[1] = 0;