drm/amd/display: move dpcd logic from dc_link_dpcd to link_dpcd

[why]
Moving dpcd logic from dc_link_dpcd to link_dpcd as part of link file
restructure
Tested-by: Daniel Wheeler <Daniel.Wheeler@amd.com>
Reviewed-by: George Shen <George.Shen@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -66,7 +66,7 @@ include $(AMD_DC)
 
 DISPLAY_CORE = dc.o dc_stat.o dc_link.o dc_resource.o dc_hw_sequencer.o dc_sink.o \
 dc_surface.o dc_link_dp.o dc_debug.o dc_stream.o \
-dc_link_enc_cfg.o dc_link_dpia.o dc_link_dpcd.o
+dc_link_enc_cfg.o dc_link_dpia.o
 
 DISPLAY_CORE += dc_vm_helper.o
 

drivers/gpu/drm/amd/display/dc/core/dc_link.c

@@ -51,7 +51,7 @@
 #include "dmub/dmub_srv.h"
 #include "inc/hw/panel_cntl.h"
 #include "inc/link_enc_cfg.h"
-#include "inc/link_dpcd.h"
+#include "link/link_dpcd.h"
 #include "link/link_dp_trace.h"
 #include "link/link_hpd.h"
 

drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c

@@ -50,7 +50,7 @@ static const uint8_t DP_VGA_LVDS_CONVERTER_ID_3[] = "dnomlA";
 	link->ctx->logger
 #define DC_TRACE_LEVEL_MESSAGE(...) /* do nothing */
 
-#include "link_dpcd.h"
+#include "link/link_dpcd.h"
 
 #ifndef MAX
 #define MAX(X, Y) ((X) > (Y) ? (X) : (Y))

drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c

@@ -33,7 +33,7 @@
 #include "link_hwss.h"
 #include "dm_helpers.h"
 #include "dmub/inc/dmub_cmd.h"
-#include "inc/link_dpcd.h"
+#include "link/link_dpcd.h"
 #include "dc_dmub_srv.h"
 
 #define DC_LOGGER \

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c

@@ -55,7 +55,6 @@
 #include "audio.h"
 #include "reg_helper.h"
 #include "panel_cntl.h"
-#include "inc/link_dpcd.h"
 #include "dpcd_defs.h"
 /* include DCE11 register header files */
 #include "dce/dce_11_0_d.h"

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

@@ -57,7 +57,6 @@
 #include "dc_trace.h"
 #include "dce/dmub_outbox.h"
 #include "inc/dc_link_dp.h"
-#include "inc/link_dpcd.h"
 
 #define DC_LOGGER_INIT(logger)
 

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c

@@ -28,7 +28,7 @@
 #include "dcn10_stream_encoder.h"
 #include "reg_helper.h"
 #include "hw_shared.h"
-#include "inc/link_dpcd.h"
+#include "dc_link_dp.h"
 #include "dpcd_defs.h"
 #include "dcn30/dcn30_afmt.h"
 

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c

@@ -52,7 +52,6 @@
 #include "dc_dmub_srv.h"
 #include "dce/dmub_hw_lock_mgr.h"
 #include "hw_sequencer.h"
-#include "inc/link_dpcd.h"
 #include "dpcd_defs.h"
 #include "inc/link_enc_cfg.h"
 #include "link_hwss.h"

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_stream_encoder.c

@@ -29,7 +29,7 @@
 #include "dcn20_stream_encoder.h"
 #include "reg_helper.h"
 #include "hw_shared.h"
-#include "inc/link_dpcd.h"
+#include "dc_link_dp.h"
 #include "dpcd_defs.h"
 
 #define DC_LOGGER \

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c

@@ -51,7 +51,6 @@
 #include "../dcn20/dcn20_hwseq.h"
 #include "dcn30_resource.h"
 #include "inc/dc_link_dp.h"
-#include "inc/link_dpcd.h"
 
 
 

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c

@@ -46,7 +46,6 @@
 #include "dpcd_defs.h"
 #include "dce/dmub_outbox.h"
 #include "dc_link_dp.h"
-#include "inc/link_dpcd.h"
 #include "dcn10/dcn10_hw_sequencer.h"
 #include "inc/link_enc_cfg.h"
 #include "dcn30/dcn30_vpg.h"

drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dio_stream_encoder.c

@@ -30,7 +30,7 @@
 #include "dcn314_dio_stream_encoder.h"
 #include "reg_helper.h"
 #include "hw_shared.h"
-#include "inc/link_dpcd.h"
+#include "dc_link_dp.h"
 #include "dpcd_defs.h"
 
 #define DC_LOGGER \

drivers/gpu/drm/amd/display/dc/dcn314/dcn314_hwseq.c

@@ -48,7 +48,6 @@
 #include "dce/dmub_outbox.h"
 #include "dc_link_dp.h"
 #include "inc/dc_link_dp.h"
-#include "inc/link_dpcd.h"
 #include "dcn10/dcn10_hw_sequencer.h"
 #include "inc/link_enc_cfg.h"
 #include "dcn30/dcn30_vpg.h"

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dio_stream_encoder.c

@@ -29,7 +29,7 @@
 #include "dcn32_dio_stream_encoder.h"
 #include "reg_helper.h"
 #include "hw_shared.h"
-#include "inc/link_dpcd.h"
+#include "dc_link_dp.h"
 #include "dpcd_defs.h"
 
 #define DC_LOGGER \

drivers/gpu/drm/amd/display/dc/hdcp/hdcp_msg.c

@@ -32,7 +32,7 @@
 #include "core_types.h"
 #include "link.h"
 #include "link_hwss.h"
-#include "inc/link_dpcd.h"
+#include "link/link_dpcd.h"
 
 #define DC_LOGGER \
 	link->ctx->logger

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

@@ -24,7 +24,7 @@
 # PHY, HPD, DDC and etc).
 
 LINK = link_hwss_dio.o link_hwss_dpia.o link_hwss_hpo_dp.o link_dp_trace.o \
-link_hpd.o link_ddc.o
+link_hpd.o link_ddc.o link_dpcd.o
 
 AMD_DAL_LINK = $(addprefix $(AMDDALPATH)/dc/link/,$(LINK))
 

drivers/gpu/drm/amd/display/dc/core/dc_link_dpcd.c → drivers/gpu/drm/amd/display/dc/link/link_dpcd.c

@@ -23,11 +23,14 @@
  *
  */
 
-#include <inc/core_status.h>
-#include <dc_link.h>
-#include <inc/link_hwss.h>
-#include <inc/link_dpcd.h>
-#include <dc_dp_types.h>
+/* FILE POLICY AND INTENDED USAGE:
+ *
+ * This file implements basic dpcd read/write functionality. It also does basic
+ * dpcd range check to ensure that every dpcd request is compliant with specs
+ * range requirements.
+ */
+
+#include "link_dpcd.h"
 #include <drm/display/drm_dp_helper.h>
 #include "dm_helpers.h"
 

drivers/gpu/drm/amd/display/dc/inc/link_dpcd.h → drivers/gpu/drm/amd/display/dc/link/link_dpcd.h

@@ -25,9 +25,7 @@
 
 #ifndef __LINK_DPCD_H__
 #define __LINK_DPCD_H__
-#include <inc/core_status.h>
-#include <dc_link.h>
-#include <dc_link_dp.h>
+#include "link.h"
 
 enum dc_status core_link_read_dpcd(
 		struct dc_link *link,