DRM/I915: Add enum hpd_pin to intel_encoder.

To clean up hotplug support we add a new enum to intel_encoder:
enum hpd_pin. It allows the encoder to request a hpd line but leave
the details which IRQ is responsible on which chipset generation
to i915_irq.c.
This way requesting hotplug support will become really simple on
the encoder/connector level.

Signed-off-by: Egbert Eich <eich@suse.de>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 2474b1b6de61..6d92aebadfc3 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -988,17 +988,21 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
         switch (port) {
         case PORT_B:
                 intel_hdmi->ddc_bus = GMBUS_PORT_DPB;
+                intel_encoder->hpd_pin = HPD_PORT_B;
                 dev_priv->hotplug_supported_mask |= PORTB_HOTPLUG_INT_STATUS;
                 break;
         case PORT_C:
                 intel_hdmi->ddc_bus = GMBUS_PORT_DPC;
+                intel_encoder->hpd_pin = HPD_PORT_C;
                 dev_priv->hotplug_supported_mask |= PORTC_HOTPLUG_INT_STATUS;
                 break;
         case PORT_D:
                 intel_hdmi->ddc_bus = GMBUS_PORT_DPD;
+                intel_encoder->hpd_pin = HPD_PORT_D;
                 dev_priv->hotplug_supported_mask |= PORTD_HOTPLUG_INT_STATUS;
                 break;
         case PORT_A:
+                intel_encoder->hpd_pin = HPD_PORT_A;
                 /* Internal port only for eDP. */
         default:
                 BUG();