-static void disable_pch_dp(struct drm_i915_private *dev_priv,
- enum pipe pipe, int reg, u32 port_sel)
-{
- u32 val = I915_READ(reg);
- if (dp_pipe_enabled(dev_priv, pipe, port_sel, val)) {
- DRM_DEBUG_KMS("Disabling pch dp %x on pipe %d\n", reg, 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(dev_priv, pipe, val)) {
- DRM_DEBUG_KMS("Disabling pch HDMI %x on pipe %d\n",
- reg, 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, TRANS_DP_PORT_SEL_B);
- disable_pch_dp(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C);
- disable_pch_dp(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D);
-
- reg = PCH_ADPA;
- val = I915_READ(reg);
- if (adpa_pipe_enabled(dev_priv, pipe, val))
- I915_WRITE(reg, val & ~ADPA_DAC_ENABLE);
-
- reg = PCH_LVDS;
- val = I915_READ(reg);
- if (lvds_pipe_enabled(dev_priv, pipe, val)) {
- DRM_DEBUG_KMS("disable lvds on pipe %d val 0x%08x\n", pipe, val);
- 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);
-}
-