From: Peter Vasil <peter.vasil@xxxxxxxxx>
Nokia Tahvo/Betty ASIC provides PWM output for LED control and voltage
regulator for adjustable Vcore output.
These are both used on N8x0 devices for display control; LEDPWM for
backlight and Vcore for framebuffer IC power.
---
arch/arm/boot/dts/omap2420-n810.dts | 13 +++++++++++++
arch/arm/boot/dts/omap2420-n8x0-common.dtsi | 8 +++++++-
2 files changed, 20 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/omap2420-n810.dts b/arch/arm/boot/dts/omap2420-n810.dts
index 09c1dbc0bb69..30f9f9e1a377 100644
--- a/arch/arm/boot/dts/omap2420-n810.dts
+++ b/arch/arm/boot/dts/omap2420-n810.dts
@@ -22,6 +22,19 @@ v28_aic: v28_aic {
};
};
+&tahvo {
+ tahvo_ledpwm: tahvo_ledpwm {
+ compatible = "nokia,tahvo-ledpwm";
+ };
+ tahvo_vcore: tahvo_vcore {
+ compatible = "nokia,tahvo-vcore-regulator";
+ regulator-name = "tornado_vcore";
+ regulator-min-microvolt = <1005000>;
+ regulator-max-microvolt = <1475000>;
+ regulator-always-on;
+ };
+};
+
&omap2420_pmx {
mcbsp2_pins: mcbsp2_pins {
pinctrl-single,pins = <
diff --git a/arch/arm/boot/dts/omap2420-n8x0-common.dtsi b/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
index 63b0b4921e4e..88d44f5a5f63 100644
--- a/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
+++ b/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
@@ -22,9 +22,15 @@ &gpio3 0 GPIO_ACTIVE_HIGH /* gpio64 sel */
#size-cells = <0>;
retu: retu@1 {
compatible = "nokia,retu";
+ reg = <0x1>;
interrupt-parent = <&gpio4>;
interrupts = <12 IRQ_TYPE_EDGE_RISING>;
- reg = <0x1>;
+ };
+ tahvo: tahvo@2 {
+ compatible = "nokia,tahvo";
+ reg = <0x2>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <15 IRQ_TYPE_EDGE_RISING>;
};
};
};
--
2.25.1
