[PATCH] drm/xe/hdcp: Add check to remove hdcp2 compatibility

[Suraj Kandpal <suraj.kandpal@intel.com>]

Add check to remove HDCP2 compatibility from BMG as it does not
have GSC which ends up causing warning when we try to get reference
of GSC FW.

Fixes: 89d030804831 ("drm/xe/hdcp: Fix condition for hdcp gsc cs requirement")
Fixes: 883631771038 ("drm/i915/mtl: Add HDCP GSC interface")
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
---
 drivers/gpu/drm/i915/display/intel_hdcp_gsc.c | 3 ++-
 drivers/gpu/drm/xe/display/xe_hdcp_gsc.c      | 4 +++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c b/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c
index 55965844d829..2c1d0ee8cec2 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c
@@ -21,7 +21,8 @@ struct intel_hdcp_gsc_message {
 
 bool intel_hdcp_gsc_cs_required(struct intel_display *display)
 {
-	return DISPLAY_VER(display) >= 14;
+	return DISPLAY_VER(display) >= 14 &&
+		DISPLAY_VER_FULL(display) != IP_VER(14, 1);
 }
 
 bool intel_hdcp_gsc_check_status(struct intel_display *display)
diff --git a/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c b/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c
index 231677129a35..efa3441c249c 100644
--- a/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c
+++ b/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c
@@ -8,6 +8,7 @@
 #include <linux/delay.h>
 
 #include "abi/gsc_command_header_abi.h"
+#include "i915_drv.h"
 #include "intel_hdcp_gsc.h"
 #include "intel_hdcp_gsc_message.h"
 #include "xe_bo.h"
@@ -32,7 +33,8 @@ struct intel_hdcp_gsc_message {
 
 bool intel_hdcp_gsc_cs_required(struct intel_display *display)
 {
-	return DISPLAY_VER(display) >= 14;
+	return DISPLAY_VER(display) >= 14 &&
+		DISPLAY_VER_FULL(display) != IP_VER(14, 1);
 }
 
 bool intel_hdcp_gsc_check_status(struct intel_display *display)
-- 
2.34.1