5.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mark Brown <broonie@xxxxxxxxxx>
[ Upstream commit 0309f714a0908e947af1c902cf6a330cb593e75e ]
The sp804 is currently only user selectable if COMPILE_TEST, this was
done by commit dfc82faad725 ("clocksource/drivers/sp804: Add
COMPILE_TEST to CONFIG_ARM_TIMER_SP804") in order to avoid it being
spuriously offered on platforms that won't have the hardware since it's
generally only seen on Arm based platforms. This config is overly
restrictive, while platforms that rely on the SP804 do select it in
their Kconfig there are others such as the Arm fast models which have a
SP804 available but currently unused by Linux. Relax the dependency to
allow it to be user selectable on arm and arm64 to avoid surprises and
in case someone comes up with a use for extra timer hardware.
Fixes: dfc82faad725 ("clocksource/drivers/sp804: Add COMPILE_TEST to CONFIG_ARM_TIMER_SP804")
Reported-by: Ross Burton <ross.burton@xxxxxxx>
Reviewed-by: Sudeep Holla <sudeep.holla@xxxxxxx>
Acked-by: Mark Rutland <mark.rutland@xxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20241001-arm64-vexpress-sp804-v3-1-0a2d3f7883e4@xxxxxxxxxx
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/clocksource/Kconfig | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index be4bb4008d6e6..8206158e637dc 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -398,7 +398,8 @@ config ARM_GLOBAL_TIMER
This option enables support for the ARM global timer unit.
config ARM_TIMER_SP804
- bool "Support for Dual Timer SP804 module" if COMPILE_TEST
+ bool "Support for Dual Timer SP804 module"
+ depends on ARM || ARM64 || COMPILE_TEST
depends on GENERIC_SCHED_CLOCK && HAVE_CLK
select CLKSRC_MMIO
select TIMER_OF if OF
--
2.43.0
