drm/i915: Create generic intel_panel for LVDS and eDP

Create a generic struct intel_panel for sharing a data structure and code
between eDP and LVDS panels. Add the new struct to intel_connector so that
later on we can have generic EDID and mode reading functions with EDID
caching that transparently fallback to fixed mode when EDID is not
available.

Add intel_panel as a dummy first, and move data (such as the mentioned
fixed mode) to it in later patches.

Based on earlier work by Chris Wilson <chris@chris-wilson.co.uk>

CC: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Fixup tiny conflict in intel_dp_destroy.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index be47efff90f0..83a0bc0b7e93 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2497,9 +2497,12 @@ intel_dp_destroy(struct drm_connector *connector)
 {
         struct drm_device *dev = connector->dev;
         struct intel_dp *intel_dp = intel_attached_dp(connector);
+        struct intel_connector *intel_connector = to_intel_connector(connector);
 
-        if (is_edp(intel_dp))
+        if (is_edp(intel_dp)) {
                 intel_panel_destroy_backlight(dev);
+                intel_panel_fini(&intel_connector->panel);
+        }
 
         drm_sysfs_connector_remove(connector);
         drm_connector_cleanup(connector);
@@ -2828,8 +2831,10 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port)
 
         intel_encoder->hot_plug = intel_dp_hot_plug;
 
-        if (is_edp(intel_dp))
+        if (is_edp(intel_dp)) {
+                intel_panel_init(&intel_connector->panel);
                 intel_panel_setup_backlight(connector);
+        }
 
         intel_dp_add_properties(intel_dp, connector);