diff mbox series

[v2,8/8] arm64: dts: st: use lptimer3 as tick broadcast source on stm32mp257f-ev1

Message ID 20250304173229.3215445-9-fabrice.gasnier@foss.st.com (mailing list archive)
State Changes Requested
Headers show
Series Add STM32MP25 LPTIM support: MFD, PWM, IIO, counter, clocksource | expand

Commit Message

Fabrice Gasnier March 4, 2025, 5:32 p.m. UTC 
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>
---
 arch/arm64/boot/dts/st/stm32mp257f-ev1.dts | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
index 1b88485a62a1..242115863ab4 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
@@ -190,6 +190,14 @@  &i2c8 {
 	status = "disabled";
 };
 
+/* use LPTIMER with tick broadcast for suspend mode */
+&lptimer3 {
+	status = "okay";
+	timer {
+		status = "okay";
+	};
+};
+
 &rtc {
 	status = "okay";
 };