[Intel-gfx] [PATCH] drm/i915: Remove skl dc6 enable/disable functions

[Daniel Vetter]

One is outright unused, other can be made static.

Drive-by cleanup while accidentally reading dc code.

Cc: Imre Deak <imre.deak at intel.com>
Acked-by: Imre Deak <imre.deak at intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Cc. Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
---
 drivers/gpu/drm/i915/intel_drv.h        |  2 --
 drivers/gpu/drm/i915/intel_runtime_pm.c | 14 +-------------
 2 files changed, 1 insertion(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 5bd2263407b2..8b20824e806e 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1580,8 +1580,6 @@ void bxt_enable_dc9(struct drm_i915_private *dev_priv);
 void bxt_disable_dc9(struct drm_i915_private *dev_priv);
 void gen9_enable_dc5(struct drm_i915_private *dev_priv);
 unsigned int skl_cdclk_get_vco(unsigned int freq);
-void skl_enable_dc6(struct drm_i915_private *dev_priv);
-void skl_disable_dc6(struct drm_i915_private *dev_priv);
 void intel_dp_get_m_n(struct intel_crtc *crtc,
 		      struct intel_crtc_state *pipe_config);
 void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n);
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 92199f2f3401..1fb8b6080dfe 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -635,7 +635,7 @@ static void assert_can_enable_dc6(struct drm_i915_private *dev_priv)
 	assert_csr_loaded(dev_priv);
 }
 
-void skl_enable_dc6(struct drm_i915_private *dev_priv)
+static void skl_enable_dc6(struct drm_i915_private *dev_priv)
 {
 	assert_can_enable_dc6(dev_priv);
 
@@ -645,18 +645,6 @@ void skl_enable_dc6(struct drm_i915_private *dev_priv)
 
 }
 
-void skl_disable_dc6(struct drm_i915_private *dev_priv)
-{
-	DRM_DEBUG_KMS("Disabling DC6\n");
-
-	/* Wa Display #1183: skl,kbl,cfl */
-	if (IS_GEN9_BC(dev_priv))
-		I915_WRITE(GEN8_CHICKEN_DCPR_1, I915_READ(GEN8_CHICKEN_DCPR_1) |
-			   SKL_SELECT_ALTERNATE_DC_EXIT);
-
-	gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
-}
-
 static void hsw_power_well_sync_hw(struct drm_i915_private *dev_priv,
 				   struct i915_power_well *power_well)
 {
-- 
2.16.2