linux-kernel - [PATCH] ARM: mstar: Select HAVE_ARM_ARCH

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Date:   Tue,  1 Mar 2022 19:43:49 +0900
From:   Daniel Palmer <daniel@...f.com>
To:     soc@...nel.org, arnd@...db.de, olof@...om.net,
        romain.perier@...il.com
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Daniel Palmer <daniel@...f.com>
Subject: [PATCH] ARM: mstar: Select HAVE_ARM_ARCH_TIMER

The mstar SoCs have an arch timer but HAVE_ARM_ARCH_TIMER wasn't
selected. If MSC313E_TIMER isn't selected then the kernel gets
stuck at boot because there are no timers available.

Signed-off-by: Daniel Palmer <daniel@...f.com>
---

I moved one of my CI builds from a 5.16 based tree to a 5.17
based one and it stopped booting. At some point I had broken my DTB
so the MStar timer wasn't getting probed anymore and at
the same time the arch timer driver wasn't getting built in.
I'm not entirely sure why the arch timer driver was built
before but isn't now. Anyhow, all of the other ARMv7 machines
seem to do this so I guess it's right.

Arnd/Olof, please apply directly if acceptable. Maybe this should
be in 5.17 as a fix?

 arch/arm/mach-mstar/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-mstar/Kconfig b/arch/arm/mach-mstar/Kconfig
index cd300eeedc20..0bf4d312bcfd 100644
--- a/arch/arm/mach-mstar/Kconfig
+++ b/arch/arm/mach-mstar/Kconfig
@@ -3,6 +3,7 @@ menuconfig ARCH_MSTARV7
 	depends on ARCH_MULTI_V7
 	select ARM_GIC
 	select ARM_HEAVY_MB
+	select HAVE_ARM_ARCH_TIMER
 	select MST_IRQ
 	select MSTAR_MSC313_MPLL
 	help
-- 
2.35.1