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

[Timo Sigurdsson]

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_tim...@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@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

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