arm64: dts: qcom: sm8250: power up dispcc on sm8250 by MMCX regulator

Add regulator controlling MMCX power domain to be used by display clock
controller on SM8250.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20201203142105.841666-8-dmitry.baryshkov@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 827197f..ce57179 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -216,6 +216,13 @@
                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_HIGH>;
@@ -2064,6 +2071,7 @@
                dispcc: clock-controller@af00000 {
                        compatible = "qcom,sm8250-dispcc";
                        reg = <0 0x0af00000 0 0x20000>;
+                       mmcx-supply = <&mmcx_reg>;
                        clocks = <&rpmhcc RPMH_CXO_CLK>,
                                 <&dsi0_phy 0>,
                                 <&dsi0_phy 1>,