drm/amd/display: Correct DTBCLK for dcn314

[Why]
DTBCLK clocks reset after clocks are initialized
and bounding box values are also incorrect.

[How]
Use dcn31 init clock function programming sequence
and correct bounding box values for dcn314
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Duncan Ma <duncan.ma@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c

@@ -307,16 +307,6 @@ static void dcn314_enable_pme_wa(struct clk_mgr *clk_mgr_base)
 	dcn314_smu_enable_pme_wa(clk_mgr);
 }
 
-void dcn314_init_clocks(struct clk_mgr *clk_mgr)
-{
-	memset(&(clk_mgr->clks), 0, sizeof(struct dc_clocks));
-	// Assumption is that boot state always supports pstate
-	clk_mgr->clks.p_state_change_support = true;
-	clk_mgr->clks.prev_p_state_change_support = true;
-	clk_mgr->clks.pwr_state = DCN_PWR_STATE_UNKNOWN;
-	clk_mgr->clks.zstate_support = DCN_ZSTATE_SUPPORT_UNKNOWN;
-}
-
 bool dcn314_are_clock_states_equal(struct dc_clocks *a,
 		struct dc_clocks *b)
 {
@@ -641,7 +631,7 @@ static struct clk_mgr_funcs dcn314_funcs = {
 	.get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz,
 	.get_dtb_ref_clk_frequency = dcn31_get_dtb_ref_freq_khz,
 	.update_clocks = dcn314_update_clocks,
-	.init_clocks = dcn314_init_clocks,
+	.init_clocks = dcn31_init_clocks,
 	.enable_pme_wa = dcn314_enable_pme_wa,
 	.are_clock_states_equal = dcn314_are_clock_states_equal,
 	.notify_wm_ranges = dcn314_notify_wm_ranges

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.h

@@ -42,7 +42,7 @@ struct clk_mgr_dcn314 {
 
 bool dcn314_are_clock_states_equal(struct dc_clocks *a,
 		struct dc_clocks *b);
-void dcn314_init_clocks(struct clk_mgr *clk_mgr);
+
 void dcn314_update_clocks(struct clk_mgr *clk_mgr_base,
 			struct dc_state *context,
 			bool safe_to_lower);

drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c

@@ -106,7 +106,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_14_soc = {
 			.phyclk_mhz = 600.0,
 			.phyclk_d18_mhz = 667.0,
 			.dscclk_mhz = 186.0,
-			.dtbclk_mhz = 625.0,
+			.dtbclk_mhz = 600.0,
 		},
 		{
 			.state = 1,
@@ -115,7 +115,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_14_soc = {
 			.phyclk_mhz = 810.0,
 			.phyclk_d18_mhz = 667.0,
 			.dscclk_mhz = 209.0,
-			.dtbclk_mhz = 625.0,
+			.dtbclk_mhz = 600.0,
 		},
 		{
 			.state = 2,
@@ -124,7 +124,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_14_soc = {
 			.phyclk_mhz = 810.0,
 			.phyclk_d18_mhz = 667.0,
 			.dscclk_mhz = 209.0,
-			.dtbclk_mhz = 625.0,
+			.dtbclk_mhz = 600.0,
 		},
 		{
 			.state = 3,
@@ -133,7 +133,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_14_soc = {
 			.phyclk_mhz = 810.0,
 			.phyclk_d18_mhz = 667.0,
 			.dscclk_mhz = 371.0,
-			.dtbclk_mhz = 625.0,
+			.dtbclk_mhz = 600.0,
 		},
 		{
 			.state = 4,
@@ -142,7 +142,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_14_soc = {
 			.phyclk_mhz = 810.0,
 			.phyclk_d18_mhz = 667.0,
 			.dscclk_mhz = 417.0,
-			.dtbclk_mhz = 625.0,
+			.dtbclk_mhz = 600.0,
 		},
 	},
 	.num_states = 5,