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Subject[PATCH] ARM: dts: sun8i-v3s: Add PWM controller and pins definitions
Date
This introduces definitions for the PWM controller found in the V3s,
as well as associated pins. This fashion of the controller has two PWM
outputs and is register-compatible with the A20.

Both PWM outputs were tested on a Lichee Pi Zero with a simple
transistor-LED setup.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
---
arch/arm/boot/dts/sun8i-v3s.dtsi | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-v3s.dtsi b/arch/arm/boot/dts/sun8i-v3s.dtsi
index a9f5795d4e57..34a4e638c762 100644
--- a/arch/arm/boot/dts/sun8i-v3s.dtsi
+++ b/arch/arm/boot/dts/sun8i-v3s.dtsi
@@ -398,6 +398,16 @@ spi0_pins: spi0-pins {
pins = "PC0", "PC1", "PC2", "PC3";
function = "spi0";
};
+
+ pwm0_pin: pwm0-pin {
+ pins = "PB4";
+ function = "pwm0";
+ };
+
+ pwm1_pin: pwm1-pin {
+ pins = "PB5";
+ function = "pwm1";
+ };
};

timer@1c20c00 {
@@ -416,6 +426,14 @@ wdt0: watchdog@1c20ca0 {
clocks = <&osc24M>;
};

+ pwm: pwm@1c21400 {
+ compatible = "allwinner,sun7i-a20-pwm";
+ reg = <0x01c21400 0xc>;
+ clocks = <&osc24M>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
lradc: lradc@1c22800 {
compatible = "allwinner,sun4i-a10-lradc-keys";
reg = <0x01c22800 0x400>;
--
2.29.2
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