1 files changed, 69 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_cm.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_cm.c
index 904c2d278998..2f994a3a0b9c 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_cm.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_cm.c
@@ -98,7 +98,7 @@ static void program_gamut_remap(
 
 	if (regval == NULL || select == GAMUT_REMAP_BYPASS) {
 		REG_SET(CM_GAMUT_REMAP_CONTROL, 0,
-				CM_GAMUT_REMAP_MODE, 0);
+			CM_GAMUT_REMAP_MODE, 0);
 		return;
 	}
 	switch (select) {
@@ -181,6 +181,74 @@ void dpp1_cm_set_gamut_remap(
 	}
 }
 
+static void read_gamut_remap(struct dcn10_dpp *dpp,
+			     uint16_t *regval,
+			     enum gamut_remap_select *select)
+{
+	struct color_matrices_reg gam_regs;
+	uint32_t selection;
+
+	REG_GET(CM_GAMUT_REMAP_CONTROL,
+					CM_GAMUT_REMAP_MODE, &selection);
+
+	*select = selection;
+
+	gam_regs.shifts.csc_c11 = dpp->tf_shift->CM_GAMUT_REMAP_C11;
+	gam_regs.masks.csc_c11  = dpp->tf_mask->CM_GAMUT_REMAP_C11;
+	gam_regs.shifts.csc_c12 = dpp->tf_shift->CM_GAMUT_REMAP_C12;
+	gam_regs.masks.csc_c12 = dpp->tf_mask->CM_GAMUT_REMAP_C12;
+
+	if (*select == GAMUT_REMAP_COEFF) {
+
+		gam_regs.csc_c11_c12 = REG(CM_GAMUT_REMAP_C11_C12);
+		gam_regs.csc_c33_c34 = REG(CM_GAMUT_REMAP_C33_C34);
+
+		cm_helper_read_color_matrices(
+				dpp->base.ctx,
+				regval,
+				&gam_regs);
+
+	} else if (*select == GAMUT_REMAP_COMA_COEFF) {
+
+		gam_regs.csc_c11_c12 = REG(CM_COMA_C11_C12);
+		gam_regs.csc_c33_c34 = REG(CM_COMA_C33_C34);
+
+		cm_helper_read_color_matrices(
+				dpp->base.ctx,
+				regval,
+				&gam_regs);
+
+	} else if (*select == GAMUT_REMAP_COMB_COEFF) {
+
+		gam_regs.csc_c11_c12 = REG(CM_COMB_C11_C12);
+		gam_regs.csc_c33_c34 = REG(CM_COMB_C33_C34);
+
+		cm_helper_read_color_matrices(
+				dpp->base.ctx,
+				regval,
+				&gam_regs);
+	}
+}
+
+void dpp1_cm_get_gamut_remap(struct dpp *dpp_base,
+			     struct dpp_grph_csc_adjustment *adjust)
+{
+	struct dcn10_dpp *dpp = TO_DCN10_DPP(dpp_base);
+	uint16_t arr_reg_val[12];
+	enum gamut_remap_select select;
+
+	read_gamut_remap(dpp, arr_reg_val, &select);
+
+	if (select == GAMUT_REMAP_BYPASS) {
+		adjust->gamut_adjust_type = GRAPHICS_GAMUT_ADJUST_TYPE_BYPASS;
+		return;
+	}
+
+	adjust->gamut_adjust_type = GRAPHICS_GAMUT_ADJUST_TYPE_SW;
+	convert_hw_matrix(adjust->temperature_matrix,
+			  arr_reg_val, ARRAY_SIZE(arr_reg_val));
+}
+
 static void dpp1_cm_program_color_matrix(
 		struct dcn10_dpp *dpp,
 		const uint16_t *regval)