[SRU][R][PATCH v2 01/12] drm/i915/vbt: Add edp pipe joiner enable/disable bits

[Werner Sembach]

From: Ankit Nautiyal <ankit.k.nautiyal at intel.com>

Add VBT support to enable/disable eDP Pipe Joiner feature.
The OEMs can choose to enable/disable the feature from VBT.
ARL - VBTs default this field to disabled.
PTL+ - VBTs default this field to enabled.

Bspec:20142
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal at intel.com>
Link: https://patch.msgid.link/20260108124141.1407760-2-ankit.k.nautiyal@intel.com
Signed-off-by: Werner Sembach <wse at tuxedocomputers.com>
(cherry picked from commit 1b85a9b04681423013bf6caeffde73aa6f29ab65)
Signed-off-by: Werner Sembach <wse at tuxedocomputers.com>
---
 drivers/gpu/drm/i915/display/intel_bios.c          | 4 ++++
 drivers/gpu/drm/i915/display/intel_display_types.h | 1 +
 drivers/gpu/drm/i915/display/intel_vbt_defs.h      | 1 +
 3 files changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index a1fa3571eca00..31858a25ba56b 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -1545,6 +1545,10 @@ parse_edp(struct intel_display *display,
 	if (display->vbt.version >= 251)
 		panel->vbt.edp.dsc_disable =
 			panel_bool(edp->edp_dsc_disable, panel_type);
+
+	if (display->vbt.version >= 261)
+		panel->vbt.edp.pipe_joiner_enable =
+			panel_bool(edp->pipe_joiner_enable, panel_type);
 }
 
 static void
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index ced0e5a5989b8..63d75be357194 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -351,6 +351,7 @@ struct intel_vbt_panel_data {
 		bool low_vswing;
 		bool hobl;
 		bool dsc_disable;
+		bool pipe_joiner_enable;
 	} edp;
 
 	struct {
diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
index 57fda5824c9c1..0dc13d080e8aa 100644
--- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
+++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
@@ -1109,6 +1109,7 @@ struct bdb_edp {
 	u16 edp_dsc_disable;					/* 251+ */
 	u16 t6_delay_support;					/* 260+ */
 	u16 link_idle_time[16];					/* 260+ */
+	u16 pipe_joiner_enable;					/* 261+ */
 } __packed;
 
 /*
-- 
2.43.0