From: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Date: Wed, 14 May 2025 08:10:39 +0000 (+0200)
Subject: arm64: dts: st: use lptimer3 as tick broadcast source on stm32mp257f-ev1
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=5e281c436e4a2ed091d597b92aa55fc57306bc5e;p=users%2Fjedix%2Flinux-maple.git

arm64: dts: st: use lptimer3 as tick broadcast source on stm32mp257f-ev1

During the low power modes the generic ARM timer is deactivated, so the
the tick broadcast is used, based on LPTIMER3 which is clocked by LSE on
STMicroelectronics boards.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
---

diff --git a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
index 9d1a1155e36c..2f561ad40665 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
@@ -222,6 +222,14 @@
 	};
 };
 
+/* use LPTIMER with tick broadcast for suspend mode */
+&lptimer3 {
+	status = "okay";
+	timer {
+		status = "okay";
+	};
+};
+
 &rtc {
 	status = "okay";
 };