drm/amd/display: Add DCN2 IRQ handling

Add support to program DCN2 IRQ handling
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/irq/Makefile

@@ -67,3 +67,13 @@ AMD_DAL_IRQ_DCN1 = $(addprefix $(AMDDALPATH)/dc/irq/dcn10/,$(IRQ_DCN1))
 
 AMD_DISPLAY_FILES += $(AMD_DAL_IRQ_DCN1)
 endif
+###############################################################################
+# DCN 20
+###############################################################################
+ifdef CONFIG_DRM_AMD_DC_DCN2_0
+IRQ_DCN2 = irq_service_dcn20.o
+
+AMD_DAL_IRQ_DCN2 = $(addprefix $(AMDDALPATH)/dc/irq/dcn20/,$(IRQ_DCN2))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_IRQ_DCN2)
+endif

drivers/gpu/drm/amd/display/dc/irq/dcn20/irq_service_dcn20.h

+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_IRQ_SERVICE_DCN20_H__
+#define __DAL_IRQ_SERVICE_DCN20_H__
+
+#include "../irq_service.h"
+
+struct irq_service *dal_irq_service_dcn20_create(
+	struct irq_service_init_data *init_data);
+
+#endif