[PATCH] arm: dts: bcm2711: Add emc2301 to the CM4 IO board
Peter Robinson
pbrobinson at gmail.com
Thu Sep 24 23:54:10 PDT 2026
The CM4 IO carrier board has a emc2301 fan controller. Add
it so it can be used on the CM4 board.
Signed-off-by: Peter Robinson <pbrobinson at gmail.com>
---
arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts b/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
index 8e45de01d2ad1..4f81fbdb85b56 100644
--- a/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
+++ b/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
@@ -107,6 +107,20 @@ &genet {
};
&i2c0_1 {
+ emc2301: fan-controller at 2f {
+ compatible = "microchip,emc2301", "microchip,emc2305";
+ reg = <0x2f>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #pwm-cells = <3>;
+
+ fan at 0 {
+ reg = <0x0>;
+ pwms = <&emc2301 26000 0 1>;
+ #cooling-cells = <2>;
+ };
+ };
+
pcf85063: rtc at 51 {
/* Attention: An alarm resets the machine */
compatible = "nxp,pcf85063a";
--
2.55.0
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