drm/amd/display: Create clock funcs

Create dccg_init and init_clocks for future use
Signed-off-by: Eryk Brol <eryk.brol@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr.h

@@ -42,6 +42,8 @@ struct clk_mgr_funcs {
 			bool safe_to_lower);
 
 	int (*get_dp_ref_clk_frequency)(struct clk_mgr *clk_mgr);
+
+	void (*init_clocks)(struct clk_mgr *clk_mgr);
 };
 
 #endif /* __DAL_CLK_MGR_H__ */

drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h

@@ -42,6 +42,7 @@ struct dccg_funcs {
 	void (*get_dccg_ref_freq)(struct dccg *dccg,
 			unsigned int xtalin_freq_inKhz,
 			unsigned int *dccg_ref_freq_inKhz);
+	void (*dccg_init)(struct dccg *dccg);
 };
 
 #endif //__DAL_DCCG_H__