drm/amd/display: break down dc_link.c

[why]
dc_link contains over 30k line of code, the decision is to break it
down to files residing in link folder based on functionality. This
change is the last break down change which will remove dc_link.c
file after everything is broken down.

[how]
Move remaining dc_link.c functions into link_detection, link_dpms,
link_validation, link_resource, and link_fpga and remove dc_link.

Reviewed-by: George Shen <George.Shen@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 8 insertions, 61 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h
index 64d5d9b28ca6..99cfe6c9858c 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_link.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_link.h
@@ -384,11 +384,6 @@ bool dc_link_setup_psr(struct dc_link *dc_link,
 		const struct dc_stream_state *stream, struct psr_config *psr_config,
 		struct psr_context *psr_context);
 
-void dc_link_blank_all_dp_displays(struct dc *dc);
-void dc_link_blank_all_edp_displays(struct dc *dc);
-
-void dc_link_blank_dp_stream(struct dc_link *link, bool hw_init);
-
 /* Request DC to detect if there is a Panel connected.
  * boot - If this call is during initial boot.
  * Return false for any type of detection failure or MST detection
@@ -407,9 +402,6 @@ enum dc_detect_reason {
 
 bool dc_link_detect(struct dc_link *dc_link, enum dc_detect_reason reason);
 bool dc_link_get_hpd_state(struct dc_link *dc_link);
-enum dc_status dc_link_allocate_mst_payload(struct pipe_ctx *pipe_ctx);
-enum dc_status dc_link_reduce_mst_payload(struct pipe_ctx *pipe_ctx, uint32_t req_pbn);
-enum dc_status dc_link_increase_mst_payload(struct pipe_ctx *pipe_ctx, uint32_t req_pbn);
 
 /* Notify DC about DP RX Interrupt (aka Short Pulse Interrupt).
  * Return:
@@ -432,8 +424,8 @@ void dc_link_dp_handle_automated_test(struct dc_link *link);
 void dc_link_dp_handle_link_loss(struct dc_link *link);
 bool dc_link_dp_allow_hpd_rx_irq(const struct dc_link *link);
 bool dc_link_check_link_loss_status(struct dc_link *link,
-				       union hpd_irq_data *hpd_irq_dpcd_data);
-enum dc_status dp_read_hpd_rx_irq_data(
+		union hpd_irq_data *hpd_irq_dpcd_data);
+enum dc_status dc_link_dp_read_hpd_rx_irq_data(
 	struct dc_link *link,
 	union hpd_irq_data *irq_data);
 struct dc_sink_init_data;
@@ -479,7 +471,7 @@ void dc_link_enable_hpd_filter(struct dc_link *link, bool enable);
 
 bool dc_link_is_dp_sink_present(struct dc_link *link);
 
-bool dc_link_detect_sink(struct dc_link *link, enum dc_connection_type *type);
+bool dc_link_detect_connection_type(struct dc_link *link, enum dc_connection_type *type);
 /*
  * DPCD access interfaces
  */
@@ -561,7 +553,7 @@ struct dp_trace_lt_counts *dc_dp_trace_get_lt_counts(struct dc_link *link,
 unsigned int dc_dp_trace_get_link_loss_count(struct dc_link *link);
 
 /* Destruct the mst topology of the link and reset the allocated payload table */
-bool reset_cur_dp_mst_topology(struct dc_link *link);
+bool dc_link_reset_cur_dp_mst_topology(struct dc_link *link);
 
 /* Attempt to transfer the given aux payload. This function does not perform
  * retries or handle error states. The reply is returned in the payload->reply
@@ -581,55 +573,6 @@ bool dc_link_decide_edp_link_settings(struct dc_link *link,
 void dc_link_edp_panel_backlight_power_on(struct dc_link *link,
 		bool wait_for_hpd);
 
-#define LINK_TRAINING_ATTEMPTS 4
-#define LINK_TRAINING_RETRY_DELAY 50 /* ms */
-#define MAX_MTP_SLOT_COUNT 64
-#define TRAINING_AUX_RD_INTERVAL 100 //us
-#define LINK_AUX_WAKE_TIMEOUT_MS 1500 // Timeout when trying to wake unresponsive DPRX.
-
-struct dc_link;
-struct dc_stream_state;
-struct dc_link_settings;
-
-enum {
-	/*
-	 * Some receivers fail to train on first try and are good
-	 * on subsequent tries. 2 retries should be plenty. If we
-	 * don't have a successful training then we don't expect to
-	 * ever get one.
-	 */
-	LINK_TRAINING_MAX_VERIFY_RETRY = 2,
-	PEAK_FACTOR_X1000 = 1006,
-};
-
-bool dp_validate_mode_timing(
-	struct dc_link *link,
-	const struct dc_crtc_timing *timing);
-
-void dp_enable_mst_on_sink(struct dc_link *link, bool enable);
-
-enum dc_status dp_set_fec_ready(struct dc_link *link, const struct link_resource *link_res, bool ready);
-void dp_set_fec_enable(struct dc_link *link, bool enable);
-bool dp_set_dsc_enable(struct pipe_ctx *pipe_ctx, bool enable);
-bool dp_set_dsc_pps_sdp(struct pipe_ctx *pipe_ctx, bool enable, bool immediate_update);
-void dp_set_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable);
-bool dp_update_dsc_config(struct pipe_ctx *pipe_ctx);
-bool dp_set_dsc_on_rx(struct pipe_ctx *pipe_ctx, bool enable);
-
-bool dpcd_write_128b_132b_sst_payload_allocation_table(
-		const struct dc_stream_state *stream,
-		struct dc_link *link,
-		struct link_mst_stream_allocation_table *proposed_table,
-		bool allocate);
-
-bool dpcd_poll_for_allocation_change_trigger(struct dc_link *link);
-
-struct fixed31_32 calculate_sst_avg_time_slots_per_mtp(
-		const struct dc_stream_state *stream,
-		const struct dc_link *link);
-void setup_dp_hpo_stream(struct pipe_ctx *pipe_ctx, bool enable);
-void dp_source_sequence_trace(struct dc_link *link, uint8_t dp_test_mode);
-
 /*
  *  USB4 DPIA BW ALLOCATION PUBLIC FUNCTIONS
  */
@@ -657,4 +600,8 @@ void dc_link_set_usb4_req_bw_req(struct dc_link *link, int req_bw);
  */
 void dc_link_get_usb4_req_bw_resp(struct dc_link *link, uint8_t bw, uint8_t result);
 
+/* TODO: this is not meant to be exposed to DM. Should switch to stream update
+ * interface i.e stream_update->dsc_config
+ */
+bool dc_link_update_dsc_config(struct pipe_ctx *pipe_ctx);
 #endif /* DC_LINK_H_ */