drm/i915/chv: Extend set idle rps wa to chv
authorDeepak S <deepak.s@linux.intel.com>
Sat, 9 May 2015 12:41:54 +0000 (18:11 +0530)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Wed, 20 May 2015 09:25:42 +0000 (11:25 +0200)
It is observed on BSW that requesting a new frequency from Punit
does nothing when the GPU is in rc6, and if we let GPU enter rc6
with a high frequency, Vnn remains slightly higher than at minimum
frequency. Extending vlv_set_rps_idle() workaround on CHV/BSW.

v2: Update commit msg (Ville)

suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_pm.c

index d22bba98d83fe2c236c27cfbd1eeff698d2dde06..2b016f2e346518d6febac6cbe2cef3c4f64f4be7 100644 (file)
@@ -4106,15 +4106,8 @@ static void valleyview_set_rps(struct drm_device *dev, u8 val)
 */
 static void vlv_set_rps_idle(struct drm_i915_private *dev_priv)
 {
-       struct drm_device *dev = dev_priv->dev;
        u32 val = dev_priv->rps.idle_freq;
 
-       /* CHV don't need to force the gfx clock */
-       if (IS_CHERRYVIEW(dev)) {
-               valleyview_set_rps(dev_priv->dev, val);
-               return;
-       }
-
        if (dev_priv->rps.cur_freq <= val)
                return;