From: Sven Peter <sven@kernel.org>
To: Janne Grunau <j@jannau.net>,
Alyssa Rosenzweig <alyssa@rosenzweig.io>,
Neal Gompa <neal@gompa.dev>, Lee Jones <lee@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-rtc@vger.kernel.org, Sven Peter <sven@kernel.org>
Subject: [PATCH 3/3] arm64: dts: apple: t8103,t600x,t8112: Add SMC RTC node
Date: Tue, 12 Aug 2025 18:25:17 +0000 [thread overview]
Message-ID: <20250812-wip-smc-rtc-v1-3-66a8e96dad60@kernel.org> (raw)
In-Reply-To: <20250812-wip-smc-rtc-v1-0-66a8e96dad60@kernel.org>
The System Manager Controller of all M1/M2 SoCs supports the RTC
sub-device.
Signed-off-by: Sven Peter <sven@kernel.org>
---
arch/arm64/boot/dts/apple/t600x-die0.dtsi | 6 ++++++
arch/arm64/boot/dts/apple/t8103.dtsi | 6 ++++++
arch/arm64/boot/dts/apple/t8112.dtsi | 6 ++++++
3 files changed, 18 insertions(+)
diff --git a/arch/arm64/boot/dts/apple/t600x-die0.dtsi b/arch/arm64/boot/dts/apple/t600x-die0.dtsi
index 3603b276a2abcfa6a730f58d5c6b9914f22f00b0..f715b19efd1679e5cd384a967d6e2a7c261ee679 100644
--- a/arch/arm64/boot/dts/apple/t600x-die0.dtsi
+++ b/arch/arm64/boot/dts/apple/t600x-die0.dtsi
@@ -44,6 +44,12 @@ smc_reboot: reboot {
nvmem-cell-names = "shutdown_flag", "boot_stage",
"boot_error_count", "panic_count";
};
+
+ rtc {
+ compatible = "apple,smc-rtc";
+ nvmem-cells = <&rtc_offset>;
+ nvmem-cell-names = "rtc_offset";
+ };
};
smc_mbox: mbox@290408000 {
diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi
index 8b7b27887968741b745651e5133dffa7d8d20f6d..59f2678639cf47f469dc699c0ecb5b9e50a45ab1 100644
--- a/arch/arm64/boot/dts/apple/t8103.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103.dtsi
@@ -916,6 +916,12 @@ smc_reboot: reboot {
nvmem-cell-names = "shutdown_flag", "boot_stage",
"boot_error_count", "panic_count";
};
+
+ rtc {
+ compatible = "apple,smc-rtc";
+ nvmem-cells = <&rtc_offset>;
+ nvmem-cell-names = "rtc_offset";
+ };
};
smc_mbox: mbox@23e408000 {
diff --git a/arch/arm64/boot/dts/apple/t8112.dtsi b/arch/arm64/boot/dts/apple/t8112.dtsi
index 3f79878b25af1f7760088aa552589494d67347fb..6bc3f58b06f703ed79578e89a030929a18d57796 100644
--- a/arch/arm64/boot/dts/apple/t8112.dtsi
+++ b/arch/arm64/boot/dts/apple/t8112.dtsi
@@ -919,6 +919,12 @@ smc_reboot: reboot {
nvmem-cell-names = "shutdown_flag", "boot_stage",
"boot_error_count", "panic_count";
};
+
+ rtc {
+ compatible = "apple,smc-rtc";
+ nvmem-cells = <&rtc_offset>;
+ nvmem-cell-names = "rtc_offset";
+ };
};
smc_mbox: mbox@23e408000 {
--
2.34.1
next prev parent reply other threads:[~2025-08-12 20:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-12 18:25 [PATCH 0/3] Apple Silicon SMC RTC driver Sven Peter
2025-08-12 18:25 ` [PATCH 1/3] dt-bindings: rtc: Add Apple SMC RTC Sven Peter
2025-08-12 18:40 ` Mark Kettenis
2025-08-13 6:14 ` Krzysztof Kozlowski
2025-08-14 21:19 ` Rob Herring
2025-08-16 12:46 ` Sven Peter
2025-08-12 18:25 ` [PATCH 2/3] rtc: Add new rtc-macsmc driver for Apple Silicon Macs Sven Peter
2025-08-12 18:25 ` Sven Peter [this message]
2025-08-14 13:06 ` [PATCH 0/3] Apple Silicon SMC RTC driver Neal Gompa
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