MIRRORS/linux-imx
1
0
Fork 0
mirror of https://github.com/nxp-imx/linux-imx.git synced 2025-07-12 20:35:23 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

ARM: dts: stm32: Add arm,no-tick-in-suspend to STM32MP15xx STGEN timer

Browse Source 
[ Upstream commit 4306c04741 ]

STM32MP15xx RM0436 Rev 6 section 46.3 System timer generator (STGEN) states
"
Arm recommends that the system counter is in an always-on power domain.
This is not supported in the current implementation, therefore STGEN should
be saved and restored before Standby mode entry, and restored at Standby
exit by secure software.
...
"
Instead of piling up workarounds in the firmware which is difficult to
update, add "arm,no-tick-in-suspend" DT property into the timer node to
indicate the timer is stopped in suspend, and let the kernel fix the
timer up.

Fixes: 8471a20253 ("ARM: dts: stm32: add stm32mp157c initial support")
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Marek Vasut 2024-05-13 23:58:15 +02:00 committed by Greg Kroah-Hartman
parent 0fffc2e1bf
commit b6271fb067
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/boot/dts/st/stm32mp151.dtsi
View File

@ -50,6 +50,7 @@
<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>;
interrupt-parent = <&intc>;
arm,no-tick-in-suspend;
};
clocks {