From: John Stultz <john.stultz@linaro.org>
Date: Thu, 12 Mar 2015 04:16:39 +0000 (-0700)
Subject: clocksource: Add some debug info about clocksources being registered
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8cc8c525ad4e7b581cacf84119e1a28dcb4044db;p=linux-beck.git

clocksource: Add some debug info about clocksources being registered

Print the mask, max_cycles, and max_idle_ns values for
clocksources being registered.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1426133800-29329-12-git-send-email-john.stultz@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 5cdf17eb4fa6..1977ebabd922 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -703,6 +703,9 @@ void __clocksource_updatefreq_scale(struct clocksource *cs, u32 scale, u32 freq)
 		cs->name);
 
 	clocksource_update_max_deferment(cs);
+
+	pr_info("clocksource %s: mask: 0x%llx max_cycles: 0x%llx, max_idle_ns: %lld ns\n",
+			cs->name, cs->mask, cs->max_cycles, cs->max_idle_ns);
 }
 EXPORT_SYMBOL_GPL(__clocksource_updatefreq_scale);