drm/amd/display: wake up ogam mem pwr before programming ocsc

[Description]
OGAM_MEM_PWR could stay in light up when driver woke up to update gamma.
either disable MEM_LOW power feature or set to OGAM_bypass could make artificial color distortion goes away.
Easy reproduce after LOW_MEM Power feature enables and resume from S3.

Signed-off-by: Charlene Liu <[e-mail]>
Reviewed-by: Julian Parkin <[e-mail]>
Acked-by: Leo Li <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dpp.c

···
 	}
 }
 
+void dpp2_power_on_obuf(
+		struct dpp *dpp_base,
+	bool power_on)
+{
+	struct dcn20_dpp *dpp = TO_DCN20_DPP(dpp_base);
+
+	REG_UPDATE(CM_MEM_PWR_CTRL, SHARED_MEM_PWR_DIS, power_on == true ? 1:0);
+
+	REG_UPDATE(OBUF_MEM_PWR_CTRL,
+			OBUF_MEM_PWR_FORCE, power_on == true ? 0:1);
+
+	REG_UPDATE(DSCL_MEM_PWR_CTRL,
+			LUT_MEM_PWR_FORCE, power_on == true ? 0:1);
+}
+
 void dpp2_dummy_program_input_lut(
 		struct dpp *dpp_base,
 		const struct dc_gamma *gamma)
···
 				CUR0_ENABLE, 0);
 
 	}
+	dpp2_power_on_obuf(dpp_base, true);
 
 }
 

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dpp.h

···
 	SRI(COLOR_KEYER_GREEN, CNVC_CFG, id), \
 	SRI(COLOR_KEYER_BLUE, CNVC_CFG, id), \
 	SRI(CM_SHAPER_LUT_DATA, CM, id), \
-	SRI(CURSOR_CONTROL, CURSOR0_, id)
+	SRI(CURSOR_CONTROL, CURSOR0_, id),\
+	SRI(OBUF_MEM_PWR_CTRL, DSCL, id),\
+	SRI(DSCL_MEM_PWR_CTRL, DSCL, id)
 
 #define TF_REG_LIST_SH_MASK_DCN20(mask_sh)\
 	TF_REG_LIST_SH_MASK_DCN(mask_sh), \
···
 	TF_SF(CNVC_CFG0_COLOR_KEYER_BLUE, COLOR_KEYER_BLUE_HIGH, mask_sh), \
 	TF_SF(CNVC_CUR0_CURSOR0_CONTROL, CUR0_PIX_INV_MODE, mask_sh), \
 	TF_SF(CNVC_CUR0_CURSOR0_CONTROL, CUR0_PIXEL_ALPHA_MOD_EN, mask_sh), \
-	TF_SF(CNVC_CUR0_CURSOR0_CONTROL, CUR0_ROM_EN, mask_sh)
+	TF_SF(CNVC_CUR0_CURSOR0_CONTROL, CUR0_ROM_EN, mask_sh),\
+	TF_SF(DSCL0_OBUF_MEM_PWR_CTRL, OBUF_MEM_PWR_FORCE, mask_sh),\
+	TF_SF(DSCL0_DSCL_MEM_PWR_CTRL, LUT_MEM_PWR_FORCE, mask_sh)
 
 #define TF_REG_FIELD_LIST_DCN2_0(type) \
 	TF_REG_FIELD_LIST(type) \
···
 	type COLOR_KEYER_BLUE_HIGH; \
 	type CUR0_PIX_INV_MODE; \
 	type CUR0_PIXEL_ALPHA_MOD_EN; \
-	type CUR0_ROM_EN
+	type CUR0_ROM_EN;\
+	type OBUF_MEM_PWR_FORCE;\
+	type LUT_MEM_PWR_FORCE
 
 struct dcn2_dpp_shift {
 	TF_REG_FIELD_LIST_DCN2_0(uint8_t);
···
 	uint32_t COLOR_KEYER_ALPHA; \
 	uint32_t COLOR_KEYER_RED; \
 	uint32_t COLOR_KEYER_GREEN; \
-	uint32_t COLOR_KEYER_BLUE
+	uint32_t COLOR_KEYER_BLUE; \
+	uint32_t OBUF_MEM_PWR_CTRL;\
+	uint32_t DSCL_MEM_PWR_CTRL
 
 struct dcn2_dpp_registers {
 	DPP_DCN2_REG_VARIABLE_LIST;
···
 	const struct dcn2_dpp_shift *tf_shift,
 	const struct dcn2_dpp_mask *tf_mask);
 
+void dpp2_power_on_obuf(
+		struct dpp *dpp_base,
+	bool power_on);
 #endif /* __DC_HWSS_DCN20_H__ */

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c

···
 {
 	struct mpc *mpc = dc->res_pool->mpc;
 	enum mpc_output_csc_mode ocsc_mode = MPC_OUTPUT_CSC_COEF_A;
+	int mpcc_id = pipe_ctx->plane_res.hubp->inst;
+
+	if (mpc->funcs->power_on_mpc_mem_pwr)
+		mpc->funcs->power_on_mpc_mem_pwr(mpc, mpcc_id, true);
 
 	if (pipe_ctx->stream->csc_color_matrix.enable_adjustment == true) {
 		if (mpc->funcs->set_output_csc != NULL)
···
 	 * if programming for all pipes is required then remove condition
 	 * pipe_ctx->top_pipe == NULL ,but then fix the diagnostic.
 	 */
+	if (mpc->funcs->power_on_mpc_mem_pwr)
+		mpc->funcs->power_on_mpc_mem_pwr(mpc, mpcc_id, true);
 	if ((pipe_ctx->top_pipe == NULL || dc_res_is_odm_head_pipe(pipe_ctx))
 			&& mpc->funcs->set_output_gamma && stream->out_transfer_func) {
 		if (stream->out_transfer_func->type == TF_TYPE_HWPWL)

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mpc.c

···
 	reg->masks.exp_resion_start_segment = mpc20->mpc_mask->MPCC_OGAM_RAMA_EXP_REGION_START_SEGMENT_B;
 }
 
-static void mpc20_power_on_ogam_lut(
+void mpc20_power_on_ogam_lut(
 		struct mpc *mpc, int mpcc_id,
 		bool power_on)
 {
 	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
 
 	REG_SET(MPCC_MEM_PWR_CTRL[mpcc_id], 0,
-			MPCC_OGAM_MEM_PWR_FORCE, power_on == true ? 0:1);
+			MPCC_OGAM_MEM_PWR_DIS, power_on == true ? 1:0);
 
 }
 
···
 	.set_output_csc = mpc2_set_output_csc,
 	.set_ocsc_default = mpc2_set_ocsc_default,
 	.set_output_gamma = mpc2_set_output_gamma,
+	.power_on_mpc_mem_pwr = mpc20_power_on_ogam_lut,
 };
 
 void dcn20_mpc_construct(struct dcn20_mpc *mpc20,

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mpc.h

···
 	SF(MPCC_OGAM0_MPCC_OGAM_RAMB_START_CNTL_B, MPCC_OGAM_RAMB_EXP_REGION_START_B, mask_sh),\
 	SF(MPCC_OGAM0_MPCC_OGAM_RAMB_START_CNTL_B, MPCC_OGAM_RAMB_EXP_REGION_START_SEGMENT_B, mask_sh),\
 	SF(MPCC0_MPCC_MEM_PWR_CTRL, MPCC_OGAM_MEM_PWR_FORCE, mask_sh),\
+	SF(MPCC0_MPCC_MEM_PWR_CTRL, MPCC_OGAM_MEM_PWR_DIS, mask_sh),\
 	SF(MPCC_OGAM0_MPCC_OGAM_LUT_INDEX, MPCC_OGAM_LUT_INDEX, mask_sh),\
 	SF(MPCC_OGAM0_MPCC_OGAM_LUT_RAM_CONTROL, MPCC_OGAM_LUT_WRITE_EN_MASK, mask_sh),\
 	SF(MPCC_OGAM0_MPCC_OGAM_LUT_RAM_CONTROL, MPCC_OGAM_LUT_RAM_SEL, mask_sh),\
···
 	SF(MPC_OUT0_DENORM_CLAMP_G_Y, MPC_OUT_DENORM_CLAMP_MIN_G_Y, mask_sh),\
 	SF(MPC_OUT0_DENORM_CLAMP_B_CB, MPC_OUT_DENORM_CLAMP_MAX_B_CB, mask_sh),\
 	SF(MPC_OUT0_DENORM_CLAMP_B_CB, MPC_OUT_DENORM_CLAMP_MIN_B_CB, mask_sh)
+
 
 #define MPC_REG_FIELD_LIST_DCN2_0(type) \
 	MPC_REG_FIELD_LIST(type)\
···
 	type MPC_OUT_DENORM_CLAMP_MIN_G_Y;\
 	type MPC_OUT_DENORM_CLAMP_MAX_B_CB;\
 	type MPC_OUT_DENORM_CLAMP_MIN_B_CB;\
-	type MPCC_DISABLED;
+	type MPCC_DISABLED;\
+	type MPCC_OGAM_MEM_PWR_DIS;
 
 struct dcn20_mpc_registers {
 	MPC_REG_VARIABLE_LIST_DCN2_0
···
 
 void mpc2_assert_idle_mpcc(struct mpc *mpc, int id);
 void mpc2_assert_mpcc_idle_before_connect(struct mpc *mpc, int mpcc_id);
+void mpc20_power_on_ogam_lut(struct mpc *mpc, int mpcc_id, bool power_on);
 #endif

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

···
 			struct mpc *mpc,
 			int mpcc_id,
 			const struct pwl_params *params);
+	void (*power_on_mpc_mem_pwr)(
+			struct mpc *mpc,
+			int mpcc_id,
+			bool power_on);
 #endif
 
 };