drm/amd/display: Disable hdmistream and hdmichar clocks

[Why & How]
Disable hdmistream and hdmichar root clocks when not being used.
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Agustin Gutierrez Sanchez <agustin.gutierrez@amd.com>
Signed-off-by: Jake Wang <haonan.wang2@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/dcn20/dcn20_dccg.h

@@ -186,8 +186,11 @@
 	type SYMCLK32_ROOT_LE0_GATE_DISABLE;\
 	type SYMCLK32_ROOT_LE1_GATE_DISABLE;\
 	type DPSTREAMCLK_ROOT_GATE_DISABLE;\
-	type DPSTREAMCLK_GATE_DISABLE;
-
+	type DPSTREAMCLK_GATE_DISABLE;\
+	type HDMISTREAMCLK0_DTO_PHASE;\
+	type HDMISTREAMCLK0_DTO_MODULO;\
+	type HDMICHARCLK0_GATE_DISABLE;\
+	type HDMICHARCLK0_ROOT_GATE_DISABLE;
 
 
 struct dccg_shift {
@@ -231,6 +234,8 @@ struct dccg_registers {
 	uint32_t DPSTREAMCLK_ROOT_GATE_DISABLE;
 	uint32_t DPSTREAMCLK_GATE_DISABLE;
 	uint32_t DCCG_GATE_DISABLE_CNTL3;
+	uint32_t HDMISTREAMCLK0_DTO_PARAM;
+	uint32_t DCCG_GATE_DISABLE_CNTL4;
 
 };
 

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_dccg.h

@@ -66,7 +66,8 @@
 	SR(DSCCLK1_DTO_PARAM),\
 	SR(DSCCLK2_DTO_PARAM),\
 	SR(DSCCLK_DTO_CTRL),\
-	SR(DCCG_GATE_DISABLE_CNTL3)
+	SR(DCCG_GATE_DISABLE_CNTL3),\
+	SR(HDMISTREAMCLK0_DTO_PARAM)
 
 
 #define DCCG_MASK_SH_LIST_DCN31(mask_sh) \
@@ -141,9 +142,9 @@
 	DCCG_SF(DCCG_GATE_DISABLE_CNTL3, SYMCLK32_ROOT_SE2_GATE_DISABLE, mask_sh),\
 	DCCG_SF(DCCG_GATE_DISABLE_CNTL3, SYMCLK32_ROOT_SE3_GATE_DISABLE, mask_sh),\
 	DCCG_SF(DCCG_GATE_DISABLE_CNTL3, SYMCLK32_ROOT_LE0_GATE_DISABLE, mask_sh),\
-	DCCG_SF(DCCG_GATE_DISABLE_CNTL3, SYMCLK32_ROOT_LE1_GATE_DISABLE, mask_sh)
-
-
+	DCCG_SF(DCCG_GATE_DISABLE_CNTL3, SYMCLK32_ROOT_LE1_GATE_DISABLE, mask_sh),\
+	DCCG_SF(HDMISTREAMCLK0_DTO_PARAM, HDMISTREAMCLK0_DTO_PHASE, mask_sh),\
+	DCCG_SF(HDMISTREAMCLK0_DTO_PARAM, HDMISTREAMCLK0_DTO_MODULO, mask_sh)
 
 
 struct dccg *dccg31_create(

drivers/gpu/drm/amd/include/asic_reg/dcn/dcn_3_1_2_offset.h

@@ -436,6 +436,8 @@
 #define regPHYESYMCLK_CLOCK_CNTL_BASE_IDX                                                               2
 #define regDCCG_GATE_DISABLE_CNTL3                                                                      0x005a
 #define regDCCG_GATE_DISABLE_CNTL3_BASE_IDX                                                             2
+#define regHDMISTREAMCLK0_DTO_PARAM                                                                     0x005b
+#define regHDMISTREAMCLK0_DTO_PARAM_BASE_IDX                                                            2
 #define regDCCG_AUDIO_DTBCLK_DTO_PHASE                                                                  0x0061
 #define regDCCG_AUDIO_DTBCLK_DTO_PHASE_BASE_IDX                                                         2
 #define regDCCG_AUDIO_DTBCLK_DTO_MODULO                                                                 0x0062

drivers/gpu/drm/amd/include/asic_reg/dcn/dcn_3_1_2_sh_mask.h

@@ -1438,6 +1438,14 @@
 #define DCCG_GATE_DISABLE_CNTL3__SYMCLK32_LE0_GATE_DISABLE_MASK                                               0x00200000L
 #define DCCG_GATE_DISABLE_CNTL3__SYMCLK32_ROOT_LE1_GATE_DISABLE_MASK                                          0x00400000L
 #define DCCG_GATE_DISABLE_CNTL3__SYMCLK32_LE1_GATE_DISABLE_MASK                                               0x00800000L
+//HDMISTREAMCLK0_DTO_PARAM
+#define HDMISTREAMCLK0_DTO_PARAM__HDMISTREAMCLK0_DTO_PHASE__SHIFT                                             0x0
+#define HDMISTREAMCLK0_DTO_PARAM__HDMISTREAMCLK0_DTO_MODULO__SHIFT                                            0x8
+#define HDMISTREAMCLK0_DTO_PARAM__HDMISTREAMCLK0_DTO_EN__SHIFT                                                0x10
+#define HDMISTREAMCLK0_DTO_PARAM__HDMISTREAMCLK0_DTO_PHASE_MASK                                               0x000000FFL
+#define HDMISTREAMCLK0_DTO_PARAM__HDMISTREAMCLK0_DTO_MODULO_MASK                                              0x0000FF00L
+#define HDMISTREAMCLK0_DTO_PARAM__HDMISTREAMCLK0_DTO_EN_MASK                                                  0x00010000L
+
 //DCCG_AUDIO_DTBCLK_DTO_PHASE
 #define DCCG_AUDIO_DTBCLK_DTO_PHASE__DCCG_AUDIO_DTBCLK_DTO_PHASE__SHIFT                                       0x0
 #define DCCG_AUDIO_DTBCLK_DTO_PHASE__DCCG_AUDIO_DTBCLK_DTO_PHASE_MASK                                         0xFFFFFFFFL