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 wakeup and alias to cm4 rtc
Date: Fri, 25 Sep 2026 07:53:48 +0100 [thread overview]
Message-ID: <20260925065400.2248660-1-pbrobinson@gmail.com> (raw)
The pcf85063 on the CM4 IO carrier board is capable of wake up
so set the parameter, also add it as an alias to rtc0.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
---
arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
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 1f4ebec68370c..8e45de01d2ad1 100644
--- a/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
+++ b/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
@@ -7,6 +7,10 @@
/ {
model = "Raspberry Pi Compute Module 4 IO Board";
+
+ aliases {
+ rtc0 = &pcf85063;
+ };
};
&ddc0 {
@@ -103,11 +107,12 @@ &genet {
};
&i2c0_1 {
- rtc@51 {
+ pcf85063: rtc@51 {
/* Attention: An alarm resets the machine */
compatible = "nxp,pcf85063a";
reg = <0x51>;
quartz-load-femtofarads = <7000>;
+ wakeup-source;
};
};
--
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 6:53 Peter Robinson [this message]
2026-09-28 18:27 ` [PATCH] arm: dts: bcm2711: Add wakeup and alias to cm4 rtc Florian Fainelli
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