ARM: shmobile: kzm9g-reference: add AS3711 and CPUFreq DT bindings

This adds DT bindings for an AS3711 PMIC, used for supplying power to the
CPU, some peripherals and the backlight, as well as extends the cpu0 DT
node with OPPs and a reference to the PMIC to support the CPUFreq and
CPU DVFS functions.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts
index 5972abb55f9cfbbf85cbc133eef788a9635e17d5..b6f759e830ed3fb35dfc4284f838d776aa6c760f 100644 (file)
--- a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts
+++ b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts
@@ -18,6 +18,19 @@
        model = "KZM-A9-GT";
        compatible = "renesas,kzm9g-reference", "renesas,sh73a0";
 
+       cpus {
+               cpu@0 {
+                       cpu0-supply = <&vdd_dvfs>;
+                       operating-points = <
+                               /* kHz  uV */
+                               1196000 1315000
+                                598000 1175000
+                                398667 1065000
+                       >;
+                       voltage-tolerance = <1>; /* 1% */
+               };
+       };
+
        chosen {
                bootargs = "console=tty0 console=ttySC4,115200 root=/dev/nfs ip=dhcp ignore_loglevel earlyprintk=sh-sci.4,115200";
        };
@@ -59,6 +72,79 @@
        };
 };
 
+&i2c0 {
+       as3711@40 {
+               compatible = "ams,as3711";
+               reg = <0x40>;
+
+               regulators {
+                       vdd_dvfs: sd1 {
+                               regulator-name = "1.315V CPU";
+                               regulator-min-microvolt = <1050000>;
+                               regulator-max-microvolt = <1350000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+                       sd2 {
+                               regulator-name = "1.8V";
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+                       sd4 {
+                               regulator-name = "1.215V";
+                               regulator-min-microvolt = <1215000>;
+                               regulator-max-microvolt = <1235000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+                       ldo2 {
+                               regulator-name = "2.8V CPU";
+                               regulator-min-microvolt = <2800000>;
+                               regulator-max-microvolt = <2800000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+                       ldo3 {
+                               regulator-name = "3.0V CPU";
+                               regulator-min-microvolt = <3000000>;
+                               regulator-max-microvolt = <3000000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+                       ldo4 {
+                               regulator-name = "2.8V";
+                               regulator-min-microvolt = <2800000>;
+                               regulator-max-microvolt = <2800000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+                       ldo5 {
+                               regulator-name = "2.8V #2";
+                               regulator-min-microvolt = <2800000>;
+                               regulator-max-microvolt = <2800000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+                       ldo7 {
+                               regulator-name = "1.15V CPU";
+                               regulator-min-microvolt = <1150000>;
+                               regulator-max-microvolt = <1150000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+                       ldo8 {
+                               regulator-name = "1.15V CPU #2";
+                               regulator-min-microvolt = <1150000>;
+                               regulator-max-microvolt = <1150000>;
+                               regulator-always-on;
+                               regulator-boot-on;
+                       };
+               };
+       };
+};
+
 &mmcif {
        bus-width = <8>;
        vmmc-supply = <&reg_1p8v>;