-static void disable_pch_dp(struct drm_i915_private *dev_priv,
- enum pipe pipe, int reg)
-{
- u32 val = I915_READ(reg);
- if (DP_PIPE_ENABLED(val, pipe))
- I915_WRITE(reg, val & ~DP_PORT_EN);
-}
-
-static void disable_pch_hdmi(struct drm_i915_private *dev_priv,
- enum pipe pipe, int reg)
-{
- u32 val = I915_READ(reg);
- if (HDMI_PIPE_ENABLED(val, pipe))
- I915_WRITE(reg, val & ~PORT_ENABLE);
-}
-
-/* Disable any ports connected to this transcoder */
-static void intel_disable_pch_ports(struct drm_i915_private *dev_priv,
- enum pipe pipe)
-{
- u32 reg, val;
-
- val = I915_READ(PCH_PP_CONTROL);
- I915_WRITE(PCH_PP_CONTROL, val | PANEL_UNLOCK_REGS);
-
- disable_pch_dp(dev_priv, pipe, PCH_DP_B);
- disable_pch_dp(dev_priv, pipe, PCH_DP_C);
- disable_pch_dp(dev_priv, pipe, PCH_DP_D);
-
- reg = PCH_ADPA;
- val = I915_READ(reg);
- if (ADPA_PIPE_ENABLED(val, pipe))
- I915_WRITE(reg, val & ~ADPA_DAC_ENABLE);
-
- reg = PCH_LVDS;
- val = I915_READ(reg);
- if (LVDS_PIPE_ENABLED(val, pipe)) {
- I915_WRITE(reg, val & ~LVDS_PORT_EN);
- POSTING_READ(reg);
- udelay(100);
- }
-
- disable_pch_hdmi(dev_priv, pipe, HDMIB);
- disable_pch_hdmi(dev_priv, pipe, HDMIC);
- disable_pch_hdmi(dev_priv, pipe, HDMID);
-}
-