drm/amd/display: Fix compile error from TO_CLK_MGR_INTERNAL

[Why]

On LNX, TO_CLK_MGR_INTERNAL() only works to get clk_mgr_internal from a
given clk_mgr. In clk_mgr_dcn316 struct, the clk_mgr_internal is already
a memeber by the alias 'base'

[How]

Use &clk_mgr->base instead.
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Leo Li <sunpeng.li@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/dcn316/dcn316_clk_mgr.c

@@ -683,8 +683,11 @@ void dcn316_clk_mgr_construct(
 	}
 
 	clk_mgr->base.base.dprefclk_khz = 600000;
-	clk_mgr->base.dccg->ref_dtbclk_khz = 600000;
+	clk_mgr->base.base.dprefclk_khz = dcn316_smu_get_dpref_clk(&clk_mgr->base);
+ 	clk_mgr->base.dccg->ref_dtbclk_khz = clk_mgr->base.base.dprefclk_khz;
 	dce_clock_read_ss_info(&clk_mgr->base);
+	clk_mgr->base.dccg->ref_dtbclk_khz =
+	dce_adjust_dp_ref_freq_for_ss(&clk_mgr->base, clk_mgr->base.base.dprefclk_khz);
 
 	clk_mgr->base.base.bw_params = &dcn316_bw_params;
 

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_smu.c

@@ -310,3 +310,29 @@ void dcn316_smu_set_dtbclk(struct clk_mgr_internal *clk_mgr, bool enable)
 			VBIOSSMC_MSG_SetDtbclkFreq,
 			enable);
 }
+
+int dcn316_smu_get_dpref_clk(struct clk_mgr_internal *clk_mgr)
+{
+	int dprefclk_get_mhz = -1;
+
+	if (clk_mgr->smu_present) {
+		dprefclk_get_mhz = dcn316_smu_send_msg_with_param(
+			clk_mgr,
+			VBIOSSMC_MSG_GetDprefclkFreq,
+			0);
+	}
+	return (dprefclk_get_mhz * 1000);
+}
+
+int dcn316_smu_get_smu_fclk(struct clk_mgr_internal *clk_mgr)
+{
+	int fclk_get_mhz = -1;
+
+	if (clk_mgr->smu_present) {
+		fclk_get_mhz = dcn316_smu_send_msg_with_param(
+			clk_mgr,
+			VBIOSSMC_MSG_GetFclkFrequency,
+			0);
+	}
+	return (fclk_get_mhz * 1000);
+}

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_smu.h

@@ -133,5 +133,7 @@ void dcn316_smu_transfer_wm_table_dram_2_smu(struct clk_mgr_internal *clk_mgr);
 void dcn316_smu_request_voltage_via_phyclk(struct clk_mgr_internal *clk_mgr, int requested_phyclk_khz);
 void dcn316_smu_enable_pme_wa(struct clk_mgr_internal *clk_mgr);
 void dcn316_smu_set_dtbclk(struct clk_mgr_internal *clk_mgr, bool enable);
+int dcn316_smu_get_dpref_clk(struct clk_mgr_internal *clk_mgr);
+int dcn316_smu_get_smu_fclk(struct clk_mgr_internal *clk_mgr);
 
 #endif /* DAL_DC_316_SMU_H_ */