From: Ville Syrjälä Date: Fri, 27 Jun 2014 23:03:58 +0000 (+0300) Subject: drm/i915: Disable cdclk changes for chv until Punit is ready X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d49a340d6eb6de45c1a886b71469d110f2dbb57b;p=linux-beck.git drm/i915: Disable cdclk changes for chv until Punit is ready Punit seems a bit WIP still. Disable cdclk changes until we have hardware where it works. Signed-off-by: Ville Syrjälä Reviewed-by: Jesse Barnes Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index fdf5ec88866a..a7d0c88a620d 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4548,6 +4548,10 @@ static int valleyview_calc_cdclk(struct drm_i915_private *dev_priv, int vco = valleyview_get_vco(dev_priv); int freq_320 = (vco << 1) % 320000 != 0 ? 333333 : 320000; + /* FIXME: Punit isn't quite ready yet */ + if (IS_CHERRYVIEW(dev_priv->dev)) + return 400000; + /* * Really only a few cases to deal with, as only 4 CDclks are supported: * 200MHz @@ -5283,6 +5287,10 @@ static int valleyview_get_display_clock_speed(struct drm_device *dev) u32 val; int divider; + /* FIXME: Punit isn't quite ready yet */ + if (IS_CHERRYVIEW(dev)) + return 400000; + mutex_lock(&dev_priv->dpio_lock); val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL); mutex_unlock(&dev_priv->dpio_lock);