drm/amd/display: Drop unused code for DCN32/321

Under DCN32/321 we identified some code paths that DC never executes.
This commit removes those unused codes to avoid distractions when
debugging issues.
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dio_link_encoder.c

@@ -150,12 +150,6 @@ static void dcn32_link_encoder_get_max_link_cap(struct link_encoder *enc,
 
 }
 
-void enc32_set_dig_output_mode(struct link_encoder *enc, uint8_t pix_per_container)
-{
-	struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
-	REG_UPDATE(DIG_FIFO_CTRL0, DIG_FIFO_OUTPUT_PIXEL_MODE, pix_per_container);
-}
- 
 static const struct link_encoder_funcs dcn32_link_enc_funcs = {
 	.read_state = link_enc2_read_state,
 	.validate_output_with_stream =
@@ -186,7 +180,6 @@ static const struct link_encoder_funcs dcn32_link_enc_funcs = {
 	.is_in_alt_mode = dcn32_link_encoder_is_in_alt_mode,
 	.get_max_link_cap = dcn32_link_encoder_get_max_link_cap,
 	.set_dio_phy_mux = dcn31_link_encoder_set_dio_phy_mux,
-	.set_dig_output_mode = enc32_set_dig_output_mode,
 };
 
 void dcn32_link_encoder_construct(

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dio_link_encoder.h

@@ -53,8 +53,4 @@ void dcn32_link_encoder_enable_dp_output(
 	const struct dc_link_settings *link_settings,
 	enum clock_source_id clock_source);
 
-void enc32_set_dig_output_mode(
-		struct link_encoder *enc,
-		uint8_t pix_per_container);
-
 #endif /* __DC_LINK_ENCODER__DCN32_H__ */

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

@@ -411,24 +411,6 @@ static void enc32_read_state(struct stream_encoder *enc, struct enc_state *s)
 	}
 }
 
-static void enc32_stream_encoder_reset_fifo(struct stream_encoder *enc)
-{
-	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);
-	uint32_t fifo_enabled;
-
-	REG_GET(DIG_FIFO_CTRL0, DIG_FIFO_ENABLE, &fifo_enabled);
-
-	if (fifo_enabled == 0) {
-		/* reset DIG resync FIFO */
-		REG_UPDATE(DIG_FIFO_CTRL0, DIG_FIFO_RESET, 1);
-		/* TODO: fix timeout when wait for DIG_FIFO_RESET_DONE */
-		//REG_WAIT(DIG_FIFO_CTRL0, DIG_FIFO_RESET_DONE, 1, 1, 100);
-		udelay(1);
-		REG_UPDATE(DIG_FIFO_CTRL0, DIG_FIFO_RESET, 0);
-		REG_WAIT(DIG_FIFO_CTRL0, DIG_FIFO_RESET_DONE, 0, 1, 100);
-	}
-}
-
 static void enc32_set_dig_input_mode(struct stream_encoder *enc, unsigned int pix_per_container)
 {
 	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);
@@ -458,8 +440,6 @@ static const struct stream_encoder_funcs dcn32_str_enc_funcs = {
 		enc3_stream_encoder_update_dp_info_packets,
 	.stop_dp_info_packets =
 		enc1_stream_encoder_stop_dp_info_packets,
-	.reset_fifo =
-		enc32_stream_encoder_reset_fifo,
 	.dp_blank =
 		enc1_stream_encoder_dp_blank,
 	.dp_unblank =

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hubp.c

@@ -185,8 +185,7 @@ static struct hubp_funcs dcn32_hubp_funcs = {
 	.hubp_update_force_pstate_disallow = hubp32_update_force_pstate_disallow,
 	.phantom_hubp_post_enable = hubp32_phantom_hubp_post_enable,
 	.hubp_update_mall_sel = hubp32_update_mall_sel,
-	.hubp_prepare_subvp_buffering = hubp32_prepare_subvp_buffering,
-	.hubp_set_flip_int = hubp1_set_flip_int
+	.hubp_prepare_subvp_buffering = hubp32_prepare_subvp_buffering
 };
 
 bool hubp32_construct(

drivers/gpu/drm/amd/display/dc/dcn321/dcn321_dio_link_encoder.c

@@ -91,7 +91,6 @@ static const struct link_encoder_funcs dcn321_link_enc_funcs = {
 	.is_in_alt_mode = dcn20_link_encoder_is_in_alt_mode,
 	.get_max_link_cap = dcn20_link_encoder_get_max_link_cap,
 	.set_dio_phy_mux = dcn31_link_encoder_set_dio_phy_mux,
-	.set_dig_output_mode = enc32_set_dig_output_mode,
 };
 
 void dcn321_link_encoder_construct(

drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c

@@ -94,8 +94,6 @@
 #include "dcn20/dcn20_vmid.h"
 
 #define DC_LOGGER_INIT(logger)
-#define fixed16_to_double(x) (((double)x) / ((double) (1 << 16)))
-#define fixed16_to_double_to_cpu(x) fixed16_to_double(le32_to_cpu(x))
 
 enum dcn321_clk_src_array_id {
 	DCN321_CLK_SRC_PLL0,