[Linux-stm32] [PATCH] ARM: dts: stm32: Enable high resolution timer

Benjamin Gaignard benjamin.gaignard at st.com
Fri Sep 27 08:48:19 UTC 2019


Adding always-on makes arm arch_timer claim to be an high resolution timer.
That is possible because power mode won't stop clocking the timer.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard at st.com>
---
 arch/arm/boot/dts/stm32mp157c.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
index 9b11654a0a39..74f64745d60d 100644
--- a/arch/arm/boot/dts/stm32mp157c.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c.dtsi
@@ -50,6 +50,7 @@
 			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
 		interrupt-parent = <&intc>;
+		always-on;
 	};
 
 	clocks {
-- 
2.15.0




More information about the Linux-stm32 mailing list