[PATCH v2] ARM: dts: sunxi: Add regulators for LeMaker BananaPi

Timo Sigurdsson
2015-08-02T16:18:25Z

sun7i-a20-bananapi.dts doesn't contain regulator nodes for the AXP209 PMU
driver, so add them to allow for voltage-scaling with cpufreq-dt.

Signed-off-by: Timo Sigurdsson <public_timo.s@silentcreek.de>
---
Changes since v1 (RFC):

- Dropped the changes to the cpufreq operating points and renamed the patch
accordingly
- Limited the CPU voltage range so it doesn't exceed the SOC specifications
---
arch/arm/boot/dts/sun7i-a20-bananapi.dts | 35 ++++++++++++++++++++++++++++----
1 file changed, 31 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/sun7i-a20-bananapi.dts b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
index 9f7b472..74382f3 100644
--- a/arch/arm/boot/dts/sun7i-a20-bananapi.dts
+++ b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
@@ -92,6 +92,10 @@
status = "okay";
};

+&cpu0 {
+ cpu-supply = <&reg_dcdc2>;
+};
+
&ehci0 {
status = "okay";
};
@@ -119,13 +123,9 @@
status = "okay";

axp209: pmic at 34 {
- compatible = "x-powers,axp209";
reg = <0x34>;
interrupt-parent = <&nmi_intc>;
interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
-
- interrupt-controller;
- #interrupt-cells = <1>;
};
};

@@ -182,6 +182,33 @@
};
};

+#include "axp209.dtsi"
+
+&reg_dcdc2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-name = "vdd-cpu";
+};
+
+&reg_dcdc3 {
+ regulator-always-on;
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-name = "vdd-int-dll";
+};
+
+&reg_ldo1 {
+ regulator-name = "vdd-rtc";
+};
+
+&reg_ldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "avcc";
+};
+
&reg_usb1_vbus {
status = "okay";
};
--
2.1.4