From: Akash Goel <akash.goel@intel.com>
Date: Mon, 29 Jun 2015 09:20:21 +0000 (+0530)
Subject: drm/i915/skl: Restrict the ring frequency table programming to SKL
X-Git-Tag: v4.3-rc1~75^2~36^2~40
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=cc017fb4d7a3308725afc02af9fd84a171e6e028;p=karo-tx-linux.git

drm/i915/skl: Restrict the ring frequency table programming to SKL

Ring frequency table programming is not required on BXT. Added separate
checks to enable the programming only for SKL & skip for BXT.

v2: Removed the BXT check from gen6_update_ring_freq function

Issue: VIZ-5144
Signed-off-by: Akash Goel <akash.goel@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 135fb974dfff..f2be1cedb52f 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -6219,7 +6219,8 @@ static void intel_gen6_powersave_work(struct work_struct *work)
 	} else if (INTEL_INFO(dev)->gen >= 9) {
 		gen9_enable_rc6(dev);
 		gen9_enable_rps(dev);
-		__gen6_update_ring_freq(dev);
+		if (IS_SKYLAKE(dev))
+			__gen6_update_ring_freq(dev);
 	} else if (IS_BROADWELL(dev)) {
 		gen8_enable_rps(dev);
 		__gen6_update_ring_freq(dev);