Merge tag 'davinci-for-v5.3/dt' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into arm/dt

This pull request adds CPUFreq support for DA850 boards in device-tree
boot using the generic CPUFREQ_DT driver.

* tag 'davinci-for-v5.3/dt' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  ARM: davinci_all_defconfig: Enable CPUFREQ_DT
  ARM: dts: da850-evm: enable cpufreq
  ARM: dts: da850-lcdk: enable cpufreq
  ARM: dts: da850-lego-ev3: enable cpufreq
  ARM: dts: da850: add cpu node and operating points to DT

Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 30 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/da850-lego-ev3.dts b/arch/arm/boot/dts/da850-lego-ev3.dts
index 09c3666def66..afd04a423856 100644
--- a/arch/arm/boot/dts/da850-lego-ev3.dts
+++ b/arch/arm/boot/dts/da850-lego-ev3.dts
@@ -122,6 +122,15 @@
 		amp-supply = <&amp>;
 	};
 
+	cvdd: regulator0 {
+		compatible = "regulator-fixed";
+		regulator-name = "cvdd";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
 	/*
 	 * This is a 5V current limiting regulator that is shared by USB,
 	 * the sensor (input) ports, the motor (output) ports and the A/DC.
@@ -201,6 +210,27 @@
 	clock-frequency = <24000000>;
 };
 
+&cpu {
+	cpu-supply = <&cvdd>;
+};
+
+/* since we have a fixed regulator, we can't run at these points */
+&opp_100 {
+	status = "disabled";
+};
+
+&opp_200 {
+	status = "disabled";
+};
+
+/*
+ * The SoC is actually the 456MHz version, but because of the fixed regulator
+ * This is the fastest we can go.
+ */
+&opp_375 {
+	status = "okay";
+};
+
 &pmx_core {
 	status = "okay";