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authorTony Lindgren <tony@atomide.com>2021-11-25 17:48:34 +0300
committerTony Lindgren <tony@atomide.com>2021-12-17 15:15:43 +0300
commit23885389dbbbbc698986e77a45c1fc44a6e3632e (patch)
treeeb737d3fd6b494bd02a673338127408b8bac6f76 /drivers/clocksource/timer-ti-dm-systimer.c
parent29a5e8496b3ac0d400dfe32288c26c774beb8cc8 (diff)
downloadlinux-23885389dbbbbc698986e77a45c1fc44a6e3632e.tar.xz
ARM: dts: Fix timer regression for beagleboard revision c
Commit e428e250fde6 ("ARM: dts: Configure system timers for omap3") caused a timer regression for beagleboard revision c where the system clockevent stops working if omap3isp module is unloaded. Turns out we still have beagleboard revisions a-b4 capacitor c70 quirks applied that limit the usable timers for no good reason. This also affects the power management as we use the system clock instead of the 32k clock source. Let's fix the issue by adding a new omap3-beagle-ab4.dts for the old timer quirks. This allows us to remove the timer quirks for later beagleboard revisions. We also need to update the related timer quirk check for the correct compatible property. Fixes: e428e250fde6 ("ARM: dts: Configure system timers for omap3") Cc: linux-kernel@vger.kernel.org Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Rob Herring <robh+dt@kernel.org> Reported-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Tested-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'drivers/clocksource/timer-ti-dm-systimer.c')
-rw-r--r--drivers/clocksource/timer-ti-dm-systimer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/clocksource/timer-ti-dm-systimer.c b/drivers/clocksource/timer-ti-dm-systimer.c
index b6f97960d8ee..5c40ca1d4740 100644
--- a/drivers/clocksource/timer-ti-dm-systimer.c
+++ b/drivers/clocksource/timer-ti-dm-systimer.c
@@ -241,7 +241,7 @@ static void __init dmtimer_systimer_assign_alwon(void)
bool quirk_unreliable_oscillator = false;
/* Quirk unreliable 32 KiHz oscillator with incomplete dts */
- if (of_machine_is_compatible("ti,omap3-beagle") ||
+ if (of_machine_is_compatible("ti,omap3-beagle-ab4") ||
of_machine_is_compatible("timll,omap3-devkit8000")) {
quirk_unreliable_oscillator = true;
counter_32k = -ENODEV;