From c625f76a9910b9d51df5d6ca40a8da0684326996 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <Marc.Zyngier@arm.com>
Date: Mon, 28 Sep 2015 15:49:15 +0100
Subject: clocksource / ACPI: Add probing infrastructure for ACPI-based
 clocksources

DT enjoys a rather nice probing infrastructure for clocksources,
while ACPI is so far stuck into a very distant past.

This patch introduces a declarative API, allowing clocksources
to be self-contained and be called when parsing the GTDT table.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/clocksource/clksrc-of.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'drivers/clocksource')

diff --git a/drivers/clocksource/clksrc-of.c b/drivers/clocksource/clksrc-of.c
index 0093a8e49e14..a2105bd620a0 100644
--- a/drivers/clocksource/clksrc-of.c
+++ b/drivers/clocksource/clksrc-of.c
@@ -14,6 +14,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <linux/acpi.h>
 #include <linux/init.h>
 #include <linux/of.h>
 #include <linux/clocksource.h>
@@ -38,6 +39,9 @@ void __init clocksource_of_init(void)
 		init_func(np);
 		clocksources++;
 	}
+
+	clocksources += acpi_probe_device_table(clksrc);
+
 	if (!clocksources)
 		pr_crit("%s: no matching clocksources found\n", __func__);
 }
-- 
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