drm/amd/display: Add DCN35 OPP

[Why & How]
Add OPP handling for DCN35.

Signed-off-by: Qingqing Zhuo <Qingqing.Zhuo@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn35/dcn35_opp.c

@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2023 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.
+ *
+ */
+
+#include "dcn35_opp.h"
+#include "reg_helper.h"
+
+#define REG(reg) ((const struct dcn35_opp_registers *)(oppn20->regs))->reg
+
+#undef FN
+#define FN(reg_name, field_name)                                           \
+	((const struct dcn35_opp_shift *)(oppn20->opp_shift))->field_name, \
+		((const struct dcn35_opp_mask *)(oppn20->opp_mask))->field_name
+
+#define CTX oppn20->base.ctx
+
+void dcn35_opp_construct(struct dcn20_opp *oppn20, struct dc_context *ctx,
+			 uint32_t inst, const struct dcn35_opp_registers *regs,
+			 const struct dcn35_opp_shift *opp_shift,
+			 const struct dcn35_opp_mask *opp_mask)
+{
+	dcn20_opp_construct(oppn20, ctx, inst,
+			    (const struct dcn20_opp_registers *)regs,
+			    (const struct dcn20_opp_shift *)opp_shift,
+			    (const struct dcn20_opp_mask *)opp_mask);
+}
+
+void dcn35_opp_set_fgcg(struct dcn20_opp *oppn20, bool enable)
+{
+	REG_UPDATE(OPP_TOP_CLK_CONTROL, OPP_FGCG_REP_DIS, !enable);
+}

drivers/gpu/drm/amd/display/dc/dcn35/dcn35_opp.h

@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2023 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.
+ *
+ */
+
+#ifndef __DCN35_OPP_H
+#define __DCN35_OPP_H
+
+#include "dcn20/dcn20_opp.h"
+
+#define OPP_REG_VARIABLE_LIST_DCN3_5  \
+	OPP_REG_VARIABLE_LIST_DCN2_0; \
+	uint32_t OPP_TOP_CLK_CONTROL
+
+#define OPP_MASK_SH_LIST_DCN35(mask_sh)  \
+	OPP_MASK_SH_LIST_DCN20(mask_sh), \
+		OPP_SF(OPP_TOP_CLK_CONTROL, OPP_FGCG_REP_DIS, mask_sh)
+
+#define OPP_DCN35_REG_FIELD_LIST(type)          \
+	struct {                                \
+		OPP_DCN20_REG_FIELD_LIST(type); \
+		type OPP_FGCG_REP_DIS;          \
+	}
+
+struct dcn35_opp_registers {
+	OPP_REG_VARIABLE_LIST_DCN3_5;
+};
+
+struct dcn35_opp_shift {
+	OPP_DCN35_REG_FIELD_LIST(uint8_t);
+};
+
+struct dcn35_opp_mask {
+	OPP_DCN35_REG_FIELD_LIST(uint32_t);
+};
+
+void dcn35_opp_construct(struct dcn20_opp *oppn20,
+	struct dc_context *ctx,
+	uint32_t inst,
+	const struct dcn35_opp_registers *regs,
+	const struct dcn35_opp_shift *opp_shift,
+	const struct dcn35_opp_mask *opp_mask);
+
+void dcn35_opp_set_fgcg(struct dcn20_opp *oppn20, bool enable);
+
+#endif