[Intel-gfx] [PATCH v2 08/16] drm/i915: Introduce intel_panel_preferred_fixed_mode()

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

There are a couple of cases where we essentially just want to
get/check the preferred fixed mode of the panel. Add a small
helper for that to abstract away the direct pointer lookup.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c    | 3 ++-
 drivers/gpu/drm/i915/display/intel_panel.c | 6 ++++++
 drivers/gpu/drm/i915/display/intel_panel.h | 2 ++
 drivers/gpu/drm/i915/display/intel_sdvo.c  | 2 +-
 4 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 3c97cd5853cc..2709a8c08cee 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -582,8 +582,9 @@ static bool intel_dp_can_link_train_fallback_for_edp(struct intel_dp *intel_dp,
 						     int link_rate,
 						     u8 lane_count)
 {
+	/* FIXME figure out what we actually want here */
 	const struct drm_display_mode *fixed_mode =
-		intel_dp->attached_connector->panel.fixed_mode;
+		intel_panel_preferred_fixed_mode(intel_dp->attached_connector);
 	int mode_rate, max_rate;
 
 	mode_rate = intel_dp_link_required(fixed_mode->clock, 18);
diff --git a/drivers/gpu/drm/i915/display/intel_panel.c b/drivers/gpu/drm/i915/display/intel_panel.c
index 222328d4e7a1..3ca37766ccb3 100644
--- a/drivers/gpu/drm/i915/display/intel_panel.c
+++ b/drivers/gpu/drm/i915/display/intel_panel.c
@@ -45,6 +45,12 @@ bool intel_panel_use_ssc(struct drm_i915_private *i915)
 		&& !(i915->quirks & QUIRK_LVDS_SSC_DISABLE);
 }
 
+const struct drm_display_mode *
+intel_panel_preferred_fixed_mode(struct intel_connector *connector)
+{
+	return connector->panel.fixed_mode;
+}
+
 const struct drm_display_mode *
 intel_panel_fixed_mode(struct intel_connector *connector,
 		       const struct drm_display_mode *mode)
diff --git a/drivers/gpu/drm/i915/display/intel_panel.h b/drivers/gpu/drm/i915/display/intel_panel.h
index 051b86450156..88e6f5c217d8 100644
--- a/drivers/gpu/drm/i915/display/intel_panel.h
+++ b/drivers/gpu/drm/i915/display/intel_panel.h
@@ -25,6 +25,8 @@ enum drm_connector_status
 intel_panel_detect(struct drm_connector *connector, bool force);
 bool intel_panel_use_ssc(struct drm_i915_private *i915);
 const struct drm_display_mode *
+intel_panel_preferred_fixed_mode(struct intel_connector *connector);
+const struct drm_display_mode *
 intel_panel_fixed_mode(struct intel_connector *connector,
 		       const struct drm_display_mode *mode);
 const struct drm_display_mode *
diff --git a/drivers/gpu/drm/i915/display/intel_sdvo.c b/drivers/gpu/drm/i915/display/intel_sdvo.c
index 04487b03b640..6e0a4f48d84d 100644
--- a/drivers/gpu/drm/i915/display/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/display/intel_sdvo.c
@@ -2932,7 +2932,7 @@ intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
 		}
 	}
 
-	if (!intel_connector->panel.fixed_mode)
+	if (!intel_panel_preferred_fixed_mode(intel_connector))
 		goto err;
 
 	return true;
-- 
2.34.1