arm64: dts: sc7180: Add required-opps for i2c

qup-i2c devices on sc7180 are clocked with a fixed clock (19.2 MHz)
Though qup-i2c does not support DVFS, it still needs to vote for a
performance state on 'CX' to satisfy the 19.2 Mhz clock frequency
requirement.

Use 'required-opps' to pass this information from
device tree, and also add the power-domains property to specify
the CX power-domain.

Signed-off-by: Rajendra Nayak <[email protected]>
Reviewed-by: Stephen Boyd <[email protected]>
Reviewed-by: Ulf Hansson <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

Author: Rajendra Nayak

arch/arm64/boot/dts/qcom/sc7180.dtsi

@@ -786,6 +786,8 @@
 						<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
 				interconnect-names = "qup-core", "qup-config",
 							"qup-memory";
+				power-domains = <&rpmhpd SC7180_CX>;
+				required-opps = <&rpmhpd_opp_low_svs>;
 				status = "disabled";
 			};
 
@@ -838,6 +840,8 @@
 						<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
 				interconnect-names = "qup-core", "qup-config",
 							"qup-memory";
+				power-domains = <&rpmhpd SC7180_CX>;
+				required-opps = <&rpmhpd_opp_low_svs>;
 				status = "disabled";
 			};
 
@@ -890,6 +894,8 @@
 						<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
 				interconnect-names = "qup-core", "qup-config",
 							"qup-memory";
+				power-domains = <&rpmhpd SC7180_CX>;
+				required-opps = <&rpmhpd_opp_low_svs>;
 				status = "disabled";
 			};
 
@@ -924,6 +930,8 @@
 						<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
 				interconnect-names = "qup-core", "qup-config",
 							"qup-memory";
+				power-domains = <&rpmhpd SC7180_CX>;
+				required-opps = <&rpmhpd_opp_low_svs>;
 				status = "disabled";
 			};
 
@@ -976,6 +984,8 @@
 						<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
 				interconnect-names = "qup-core", "qup-config",
 							"qup-memory";
+				power-domains = <&rpmhpd SC7180_CX>;
+				required-opps = <&rpmhpd_opp_low_svs>;
 				status = "disabled";
 			};
 
@@ -1010,6 +1020,8 @@
 						<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
 				interconnect-names = "qup-core", "qup-config",
 							"qup-memory";
+				power-domains = <&rpmhpd SC7180_CX>;
+				required-opps = <&rpmhpd_opp_low_svs>;
 				status = "disabled";
 			};
 
@@ -1075,6 +1087,8 @@
 						<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
 				interconnect-names = "qup-core", "qup-config",
 							"qup-memory";
+				power-domains = <&rpmhpd SC7180_CX>;
+				required-opps = <&rpmhpd_opp_low_svs>;
 				status = "disabled";
 			};
 
@@ -1127,6 +1141,8 @@
 						<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
 				interconnect-names = "qup-core", "qup-config",
 							"qup-memory";
+				power-domains = <&rpmhpd SC7180_CX>;
+				required-opps = <&rpmhpd_opp_low_svs>;
 				status = "disabled";
 			};
 
@@ -1161,6 +1177,8 @@
 						<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
 				interconnect-names = "qup-core", "qup-config",
 							"qup-memory";
+				power-domains = <&rpmhpd SC7180_CX>;
+				required-opps = <&rpmhpd_opp_low_svs>;
 				status = "disabled";
 			};
 
@@ -1213,6 +1231,8 @@
 						<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
 				interconnect-names = "qup-core", "qup-config",
 							"qup-memory";
+				power-domains = <&rpmhpd SC7180_CX>;
+				required-opps = <&rpmhpd_opp_low_svs>;
 				status = "disabled";
 			};
 
@@ -1247,6 +1267,8 @@
 						<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
 				interconnect-names = "qup-core", "qup-config",
 							"qup-memory";
+				power-domains = <&rpmhpd SC7180_CX>;
+				required-opps = <&rpmhpd_opp_low_svs>;
 				status = "disabled";
 			};
 
@@ -1299,6 +1321,8 @@
 						<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
 				interconnect-names = "qup-core", "qup-config",
 							"qup-memory";
+				power-domains = <&rpmhpd SC7180_CX>;
+				required-opps = <&rpmhpd_opp_low_svs>;
 				status = "disabled";
 			};