[Intel-gfx] [PATCH 10/12] drm/i915/hdmi: Nuke hdmi->ddc_bus

[Ville Syrjala]

From: Ville Syrjälä <ville.syrj...@linux.intel.com>

Remove the mostly redundant hdmi->ddc_bus. The only thing that needs
it anymore is get_encoder_by_ddc_bus(), but that can be replaced with
a slight detour through attached_connector+intel_gmbus_get_adapter().

Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_display_types.h |  1 -
 drivers/gpu/drm/i915/display/intel_hdmi.c          | 13 +++++++++----
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h 
b/drivers/gpu/drm/i915/display/intel_display_types.h
index c62f4ec315e8..363b6573a5f9 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1581,7 +1581,6 @@ struct intel_watermark_params {
 
 struct intel_hdmi {
        i915_reg_t hdmi_reg;
-       int ddc_bus;
        struct {
                enum drm_dp_dual_mode_type type;
                int max_tmds_clock;
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c 
b/drivers/gpu/drm/i915/display/intel_hdmi.c
index efa9bb93cfb1..6b8754290304 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2900,13 +2900,17 @@ get_encoder_by_ddc_pin(struct intel_encoder *encoder, 
u8 ddc_pin)
        struct intel_encoder *other;
 
        for_each_intel_encoder(&i915->drm, other) {
+               struct intel_connector *connector;
+
                if (other == encoder)
                        continue;
 
                if (!intel_encoder_is_dig_port(other))
                        continue;
 
-               if (enc_to_dig_port(other)->hdmi.ddc_bus == ddc_pin)
+               connector = enc_to_dig_port(other)->hdmi.attached_connector;
+
+               if (connector && connector->base.ddc == 
intel_gmbus_get_adapter(i915, ddc_pin))
                        return other;
        }
 
@@ -3000,6 +3004,7 @@ void intel_hdmi_init_connector(struct intel_digital_port 
*dig_port,
        struct drm_i915_private *dev_priv = to_i915(dev);
        enum port port = intel_encoder->port;
        struct cec_connector_info conn_info;
+       u8 ddc_pin;
 
        drm_dbg_kms(&dev_priv->drm,
                    "Adding HDMI connector on [ENCODER:%d:%s]\n",
@@ -3014,14 +3019,14 @@ void intel_hdmi_init_connector(struct 
intel_digital_port *dig_port,
                     intel_encoder->base.name))
                return;
 
-       intel_hdmi->ddc_bus = intel_hdmi_ddc_pin(intel_encoder);
-       if (!intel_hdmi->ddc_bus)
+       ddc_pin = intel_hdmi_ddc_pin(intel_encoder);
+       if (!ddc_pin)
                return;
 
        drm_connector_init_with_ddc(dev, connector,
                                    &intel_hdmi_connector_funcs,
                                    DRM_MODE_CONNECTOR_HDMIA,
-                                   intel_gmbus_get_adapter(dev_priv, 
intel_hdmi->ddc_bus));
+                                   intel_gmbus_get_adapter(dev_priv, ddc_pin));
 
        drm_connector_helper_add(connector, &intel_hdmi_connector_helper_funcs);
 
-- 
2.41.0