From: Ville Syrjälä <[email protected]>

Let's get rid of the platform if ladders in
intel_digital_port_connected() and make it a vfunc. Now the if
ladders are at the encoder initialization which makes them a bit
less convoluted.

Signed-off-by: Ville Syrjälä <[email protected]>
---
 drivers/gpu/drm/i915/display/intel_ddi.c      |  19 ++++
 .../drm/i915/display/intel_display_types.h    |   1 +
 drivers/gpu/drm/i915/display/intel_dp.c       | 107 +++++-------------
 drivers/gpu/drm/i915/display/intel_dp.h       |   6 +
 drivers/gpu/drm/i915/display/intel_tc.c       |   3 +-
 drivers/gpu/drm/i915/display/intel_tc.h       |   2 +-
 6 files changed, 60 insertions(+), 78 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c 
b/drivers/gpu/drm/i915/display/intel_ddi.c
index bbf1c0a243a2..d983860560cf 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -4890,6 +4890,25 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, 
enum port port)
                                port_name(port));
        }
 
+       if (INTEL_GEN(dev_priv) >= 11) {
+               if (intel_phy_is_tc(dev_priv, phy))
+                       intel_dig_port->connected = intel_tc_port_connected;
+               else
+                       intel_dig_port->connected = icp_digital_port_connected;
+       } else if (IS_GEN9_LP(dev_priv)) {
+               intel_dig_port->connected = bxt_digital_port_connected;
+       } else if (port == PORT_A) {
+               if (INTEL_GEN(dev_priv) >= 8)
+                       intel_dig_port->connected = bdw_digital_port_connected;
+               else
+                       intel_dig_port->connected = ivb_digital_port_connected;
+       } else {
+               if (INTEL_PCH_TYPE(dev_priv) >= PCH_SPT)
+                       intel_dig_port->connected = spt_digital_port_connected;
+               else
+                       intel_dig_port->connected = cpt_digital_port_connected;
+       }
+
        intel_infoframe_init(intel_dig_port);
 
        return;
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h 
b/drivers/gpu/drm/i915/display/intel_display_types.h
index 8c9cfafca195..2b308c612a02 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1371,6 +1371,7 @@ struct intel_digital_port {
                               const struct drm_connector_state *conn_state);
        u32 (*infoframes_enabled)(struct intel_encoder *encoder,
                                  const struct intel_crtc_state *pipe_config);
+       bool (*connected)(struct intel_encoder *encoder);
 };
 
 struct intel_dp_mst_encoder {
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c 
b/drivers/gpu/drm/i915/display/intel_dp.c
index 9956367712e9..4e1f73f80951 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5371,7 +5371,7 @@ static bool ibx_digital_port_connected(struct 
intel_encoder *encoder)
        return I915_READ(SDEISR) & bit;
 }
 
-static bool cpt_digital_port_connected(struct intel_encoder *encoder)
+bool cpt_digital_port_connected(struct intel_encoder *encoder)
 {
        struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
        u32 bit;
@@ -5394,7 +5394,7 @@ static bool cpt_digital_port_connected(struct 
intel_encoder *encoder)
        return I915_READ(SDEISR) & bit;
 }
 
-static bool spt_digital_port_connected(struct intel_encoder *encoder)
+bool spt_digital_port_connected(struct intel_encoder *encoder)
 {
        struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
        u32 bit;
@@ -5463,43 +5463,24 @@ static bool ilk_digital_port_connected(struct 
intel_encoder *encoder)
 {
        struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 
-       if (encoder->hpd_pin == HPD_PORT_A)
-               return I915_READ(DEISR) & DE_DP_A_HOTPLUG;
-       else
-               return ibx_digital_port_connected(encoder);
+       return I915_READ(DEISR) & DE_DP_A_HOTPLUG;
 }
 
-static bool snb_digital_port_connected(struct intel_encoder *encoder)
+bool ivb_digital_port_connected(struct intel_encoder *encoder)
 {
        struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 
-       if (encoder->hpd_pin == HPD_PORT_A)
-               return I915_READ(DEISR) & DE_DP_A_HOTPLUG;
-       else
-               return cpt_digital_port_connected(encoder);
+       return I915_READ(DEISR) & DE_DP_A_HOTPLUG_IVB;
 }
 
-static bool ivb_digital_port_connected(struct intel_encoder *encoder)
+bool bdw_digital_port_connected(struct intel_encoder *encoder)
 {
        struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 
-       if (encoder->hpd_pin == HPD_PORT_A)
-               return I915_READ(DEISR) & DE_DP_A_HOTPLUG_IVB;
-       else
-               return cpt_digital_port_connected(encoder);
+       return I915_READ(GEN8_DE_PORT_ISR) & GEN8_PORT_DP_A_HOTPLUG;
 }
 
-static bool bdw_digital_port_connected(struct intel_encoder *encoder)
-{
-       struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
-
-       if (encoder->hpd_pin == HPD_PORT_A)
-               return I915_READ(GEN8_DE_PORT_ISR) & GEN8_PORT_DP_A_HOTPLUG;
-       else
-               return cpt_digital_port_connected(encoder);
-}
-
-static bool bxt_digital_port_connected(struct intel_encoder *encoder)
+bool bxt_digital_port_connected(struct intel_encoder *encoder)
 {
        struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
        u32 bit;
@@ -5522,31 +5503,17 @@ static bool bxt_digital_port_connected(struct 
intel_encoder *encoder)
        return I915_READ(GEN8_DE_PORT_ISR) & bit;
 }
 
-static bool intel_combo_phy_connected(struct drm_i915_private *dev_priv,
-                                     enum phy phy)
+bool icp_digital_port_connected(struct intel_encoder *encoder)
 {
+       struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+       enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
+
        if (HAS_PCH_MCC(dev_priv) && phy == PHY_C)
                return I915_READ(SDEISR) & SDE_TC_HOTPLUG_ICP(PORT_TC1);
 
        return I915_READ(SDEISR) & SDE_DDI_HOTPLUG_ICP(phy);
 }
 
-static bool icp_digital_port_connected(struct intel_encoder *encoder)
-{
-       struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
-       struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
-       enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
-
-       if (intel_phy_is_combo(dev_priv, phy))
-               return intel_combo_phy_connected(dev_priv, phy);
-       else if (intel_phy_is_tc(dev_priv, phy))
-               return intel_tc_port_connected(dig_port);
-       else
-               MISSING_CASE(encoder->hpd_pin);
-
-       return false;
-}
-
 /*
  * intel_digital_port_connected - is the specified port connected?
  * @encoder: intel_encoder
@@ -5558,44 +5525,15 @@ static bool icp_digital_port_connected(struct 
intel_encoder *encoder)
  *
  * Return %true if port is connected, %false otherwise.
  */
-static bool __intel_digital_port_connected(struct intel_encoder *encoder)
-{
-       struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
-
-       if (HAS_GMCH(dev_priv)) {
-               if (IS_GM45(dev_priv))
-                       return gm45_digital_port_connected(encoder);
-               else
-                       return g4x_digital_port_connected(encoder);
-       }
-
-       if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP)
-               return icp_digital_port_connected(encoder);
-       else if (INTEL_PCH_TYPE(dev_priv) >= PCH_SPT)
-               return spt_digital_port_connected(encoder);
-       else if (IS_GEN9_LP(dev_priv))
-               return bxt_digital_port_connected(encoder);
-       else if (IS_GEN(dev_priv, 8))
-               return bdw_digital_port_connected(encoder);
-       else if (IS_GEN(dev_priv, 7))
-               return ivb_digital_port_connected(encoder);
-       else if (IS_GEN(dev_priv, 6))
-               return snb_digital_port_connected(encoder);
-       else if (IS_GEN(dev_priv, 5))
-               return ilk_digital_port_connected(encoder);
-
-       MISSING_CASE(INTEL_GEN(dev_priv));
-       return false;
-}
-
 bool intel_digital_port_connected(struct intel_encoder *encoder)
 {
        struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+       struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
        bool is_connected = false;
        intel_wakeref_t wakeref;
 
        with_intel_display_power(dev_priv, POWER_DOMAIN_DISPLAY_CORE, wakeref)
-               is_connected = __intel_digital_port_connected(encoder);
+               is_connected = dig_port->connected(encoder);
 
        return is_connected;
 }
@@ -7634,6 +7572,23 @@ bool intel_dp_init(struct drm_i915_private *dev_priv,
 
        intel_dig_port->hpd_pulse = intel_dp_hpd_pulse;
 
+       if (HAS_GMCH(dev_priv)) {
+               if (IS_GM45(dev_priv))
+                       intel_dig_port->connected = gm45_digital_port_connected;
+               else
+                       intel_dig_port->connected = g4x_digital_port_connected;
+       } else if (port == PORT_A) {
+               if (IS_IVYBRIDGE(dev_priv))
+                       intel_dig_port->connected = ivb_digital_port_connected;
+               else
+                       intel_dig_port->connected = ilk_digital_port_connected;
+       } else {
+               if (HAS_PCH_CPT(dev_priv))
+                       intel_dig_port->connected = cpt_digital_port_connected;
+               else
+                       intel_dig_port->connected = ibx_digital_port_connected;
+       }
+
        if (port != PORT_A)
                intel_infoframe_init(intel_dig_port);
 
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h 
b/drivers/gpu/drm/i915/display/intel_dp.h
index 3da166054788..cf0df6f18734 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -116,6 +116,12 @@ void intel_dp_vsc_enable(struct intel_dp *intel_dp,
 void intel_dp_hdr_metadata_enable(struct intel_dp *intel_dp,
                                  const struct intel_crtc_state *crtc_state,
                                  const struct drm_connector_state *conn_state);
+bool cpt_digital_port_connected(struct intel_encoder *encoder);
+bool spt_digital_port_connected(struct intel_encoder *encoder);
+bool ivb_digital_port_connected(struct intel_encoder *encoder);
+bool bdw_digital_port_connected(struct intel_encoder *encoder);
+bool bxt_digital_port_connected(struct intel_encoder *encoder);
+bool icp_digital_port_connected(struct intel_encoder *encoder);
 bool intel_digital_port_connected(struct intel_encoder *encoder);
 
 static inline unsigned int intel_dp_unused_lane_mask(int lane_count)
diff --git a/drivers/gpu/drm/i915/display/intel_tc.c 
b/drivers/gpu/drm/i915/display/intel_tc.c
index 7773169b7331..f498076b132c 100644
--- a/drivers/gpu/drm/i915/display/intel_tc.c
+++ b/drivers/gpu/drm/i915/display/intel_tc.c
@@ -477,8 +477,9 @@ static bool intel_tc_port_needs_reset(struct 
intel_digital_port *dig_port)
  * connected ports are usable, and avoids exposing to the users objects they
  * can't really use.
  */
-bool intel_tc_port_connected(struct intel_digital_port *dig_port)
+bool intel_tc_port_connected(struct intel_encoder *encoder)
 {
+       struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
        bool is_connected;
 
        intel_tc_port_lock(dig_port);
diff --git a/drivers/gpu/drm/i915/display/intel_tc.h 
b/drivers/gpu/drm/i915/display/intel_tc.h
index 463f1b3c836f..faeccf3e4eb6 100644
--- a/drivers/gpu/drm/i915/display/intel_tc.h
+++ b/drivers/gpu/drm/i915/display/intel_tc.h
@@ -11,7 +11,7 @@
 
 struct intel_digital_port;
 
-bool intel_tc_port_connected(struct intel_digital_port *dig_port);
+bool intel_tc_port_connected(struct intel_encoder *encoder);
 u32 intel_tc_port_get_lane_mask(struct intel_digital_port *dig_port);
 u32 intel_tc_port_get_pin_assignment_mask(struct intel_digital_port *dig_port);
 int intel_tc_port_fia_max_lane_count(struct intel_digital_port *dig_port);
-- 
2.24.1

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