[Intel-gfx] [PATCH 2/3] drm/i915/pps: Enable 2nd pps for dual EDP scenario

[Animesh Manna]

>From display gen12 onwards to support dual EDP two instances of pps added.
Currently backlight controller and pps instance can be mapped together
for a specific panel. Extended support for gen12 for dual EDP usage.

v1: Iniital revision
v2: Called intel_bios_panel_init w/o PNPID before intel_pps_init. [Jani]

Cc: Jani Nikula <jani.nikula at intel.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Cc: Uma Shankar <uma.shankar at intel.com>
Signed-off-by: Animesh Manna <animesh.manna at intel.com>
---
 drivers/gpu/drm/i915/display/intel_bios.c | 7 -------
 drivers/gpu/drm/i915/display/intel_bios.h | 7 +++++++
 drivers/gpu/drm/i915/display/intel_dp.c   | 9 ++++++---
 drivers/gpu/drm/i915/display/intel_pps.c  | 2 +-
 4 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index c2987f2c2b2e..fca44be9bab8 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -706,13 +706,6 @@ static int fallback_get_panel_type(struct drm_i915_private *i915,
 	return 0;
 }
 
-enum panel_type {
-	PANEL_TYPE_OPREGION,
-	PANEL_TYPE_VBT,
-	PANEL_TYPE_PNPID,
-	PANEL_TYPE_FALLBACK,
-};
-
 static int get_panel_type(struct drm_i915_private *i915,
 			  const struct intel_bios_encoder_data *devdata,
 			  const struct edid *edid)
diff --git a/drivers/gpu/drm/i915/display/intel_bios.h b/drivers/gpu/drm/i915/display/intel_bios.h
index e375405a7828..da01b13260ae 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.h
+++ b/drivers/gpu/drm/i915/display/intel_bios.h
@@ -231,6 +231,13 @@ struct mipi_pps_data {
 	u16 panel_power_cycle_delay;
 } __packed;
 
+enum panel_type {
+	PANEL_TYPE_OPREGION,
+	PANEL_TYPE_VBT,
+	PANEL_TYPE_PNPID,
+	PANEL_TYPE_FALLBACK,
+};
+
 void intel_bios_init(struct drm_i915_private *dev_priv);
 void intel_bios_init_panel(struct drm_i915_private *dev_priv,
 			   struct intel_panel *panel,
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 7400d6b4c587..08ece347f7cb 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5254,6 +5254,9 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
 		return false;
 	}
 
+	intel_bios_init_panel(dev_priv, &intel_connector->panel,
+			      encoder->devdata, NULL);
+
 	intel_pps_init(intel_dp);
 
 	/* Cache DPCD and EDID for edp. */
@@ -5288,9 +5291,9 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
 		edid = ERR_PTR(-ENOENT);
 	}
 	intel_connector->edid = edid;
-
-	intel_bios_init_panel(dev_priv, &intel_connector->panel,
-			      encoder->devdata, IS_ERR(edid) ? NULL : edid);
+	if (intel_connector->panel.vbt.panel_type == PANEL_TYPE_FALLBACK)
+		intel_bios_init_panel(dev_priv, &intel_connector->panel,
+				      encoder->devdata, IS_ERR(edid) ? NULL : edid);
 
 	intel_panel_add_edid_fixed_modes(intel_connector, true);
 
diff --git a/drivers/gpu/drm/i915/display/intel_pps.c b/drivers/gpu/drm/i915/display/intel_pps.c
index 3949fb449353..0975e49f8d03 100644
--- a/drivers/gpu/drm/i915/display/intel_pps.c
+++ b/drivers/gpu/drm/i915/display/intel_pps.c
@@ -1430,7 +1430,7 @@ void intel_pps_init(struct intel_dp *intel_dp)
 	intel_dp->pps.initializing = true;
 	INIT_DELAYED_WORK(&intel_dp->pps.panel_vdd_work, edp_panel_vdd_work);
 
-	if (IS_GEMINILAKE(i915) || IS_BROXTON(i915))
+	if (IS_GEMINILAKE(i915) || IS_BROXTON(i915) || DISPLAY_VER(i915) >= 12)
 		intel_dp->get_pps_idx = bxt_power_sequencer_idx;
 	else if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915))
 		intel_dp->get_pps_idx = vlv_power_sequencer_pipe;
-- 
2.29.0