drm/i915: add more VLV IOSF sideband ports accessors

For GPIO NC, CCK, CCU, and GPS CORE.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index d5cff97..e262857 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2248,6 +2248,14 @@
 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u8 addr);
 void vlv_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
 u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
+u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg);
+void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
+u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
+void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
+u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
+void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
+u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg);
+void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
 u32 vlv_dpio_read(struct drm_i915_private *dev_priv, int reg);
 void vlv_dpio_write(struct drm_i915_private *dev_priv, int reg, u32 val);
 u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,