arm64: dts: qcom: sm8250: remove mmcx regulator

Switch dispcc and videocc into using MMCX domain directly. Drop the now
unused mmcx regulator.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210829154757.784699-7-dmitry.baryshkov@linaro.org

arch/arm64/boot/dts/qcom/sm8250.dtsi

@@ -272,13 +272,6 @@ memory@80000000 {
 		reg = <0x0 0x80000000 0x0 0x0>;
 	};
 
-	mmcx_reg: mmcx-reg {
-		compatible = "regulator-fixed-domain";
-		power-domains = <&rpmhpd SM8250_MMCX>;
-		required-opps = <&rpmhpd_opp_low_svs>;
-		regulator-name = "MMCX";
-	};
-
 	pmu {
 		compatible = "arm,armv8-pmuv3";
 		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
@@ -2571,7 +2564,8 @@ videocc: clock-controller@abf0000 {
 			clocks = <&gcc GCC_VIDEO_AHB_CLK>,
 				 <&rpmhcc RPMH_CXO_CLK>,
 				 <&rpmhcc RPMH_CXO_CLK_A>;
-			mmcx-supply = <&mmcx_reg>;
+			power-domains = <&rpmhpd SM8250_MMCX>;
+			required-opps = <&rpmhpd_opp_low_svs>;
 			clock-names = "iface", "bi_tcxo", "bi_tcxo_ao";
 			#clock-cells = <1>;
 			#reset-cells = <1>;
@@ -2845,7 +2839,8 @@ opp-358000000 {
 		dispcc: clock-controller@af00000 {
 			compatible = "qcom,sm8250-dispcc";
 			reg = <0 0x0af00000 0 0x10000>;
-			mmcx-supply = <&mmcx_reg>;
+			power-domains = <&rpmhpd SM8250_MMCX>;
+			required-opps = <&rpmhpd_opp_low_svs>;
 			clocks = <&rpmhcc RPMH_CXO_CLK>,
 				 <&dsi0_phy 0>,
 				 <&dsi0_phy 1>,