From: Peter Robinson <pbrobinson@gmail.com>
To: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Florian Fainelli <florian.fainelli@broadcom.com>,
Broadcom internal kernel review list
<bcm-kernel-feedback-list@broadcom.com>,
devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Cc: Peter Robinson <pbrobinson@gmail.com>
Subject: [PATCH] arm: dts: bcm2711: Add emc2301 to the CM4 IO board
Date: Fri, 25 Sep 2026 07:54:10 +0100 [thread overview]
Message-ID: <20260925065418.2248731-1-pbrobinson@gmail.com> (raw)
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@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@2f {
+ compatible = "microchip,emc2301", "microchip,emc2305";
+ reg = <0x2f>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #pwm-cells = <3>;
+
+ fan@0 {
+ reg = <0x0>;
+ pwms = <&emc2301 26000 0 1>;
+ #cooling-cells = <2>;
+ };
+ };
+
pcf85063: rtc@51 {
/* Attention: An alarm resets the machine */
compatible = "nxp,pcf85063a";
--
2.55.0
next reply other threads:[~2026-09-25 6:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-25 6:54 Peter Robinson [this message]
2026-09-28 18:27 ` [PATCH] arm: dts: bcm2711: Add emc2301 to the CM4 IO board Florian Fainelli
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