ARM: tegra: Enable CPUFreq support for Tegra124 Chromebooks

Add the device-tree DFLL clock node and CPU regulator phandle for
Tegra124 Chromebooks to enable CPUFreq support on these boards.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra124-nyan.dtsi b/arch/arm/boot/dts/tegra124-nyan.dtsi
index a9aec23e06f2c60a3a1d0bc6cc2846a8380fb548..40c23a0b7cfc2adf8517e28ac51b0078423a0c61 100644 (file)
--- a/arch/arm/boot/dts/tegra124-nyan.dtsi
+++ b/arch/arm/boot/dts/tegra124-nyan.dtsi
@@ -159,7 +159,7 @@
                                vin-ldo9-10-supply = <&vdd_5v0_sys>;
                                vin-ldo11-supply = <&vdd_3v3_run>;
 
-                               sd0 {
+                               vdd_cpu: sd0 {
                                        regulator-name = "+VDD_CPU_AP";
                                        regulator-min-microvolt = <700000>;
                                        regulator-max-microvolt = <1350000>;
@@ -397,6 +397,13 @@
                non-removable;
        };
 
+       /* CPU DFLL clock */
+       clock@0,70110000 {
+               status = "okay";
+               vdd-cpu-supply = <&vdd_cpu>;
+               nvidia,i2c-fs-rate = <400000>;
+       };
+
        ahub@0,70300000 {
                i2s@0,70301100 {
                        status = "okay";
@@ -487,6 +494,12 @@
                };
        };
 
+       cpus {
+               cpu@0 {
+                       vdd-cpu-supply = <&vdd_cpu>;
+               };
+       };
+
        gpio-keys {
                compatible = "gpio-keys";