[v4,10/19] ARC: Add clock from device tree to time_init()
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Message ID 1450228238-4499-11-git-send-email-noamc@ezchip.com
State Superseded
Headers show

Commit Message

Noam Camus Dec. 16, 2015, 1:10 a.m. UTC
From: Noam Camus <noamc@ezchip.com>

External clock source can be used if included by one of
DTS file of a chosen platform.
Clocksource may be depend on some clk from DTS as the
real source of this clock.

Signed-off-by: Noam Camus <noamc@ezchip.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/kernel/time.c |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

Patch
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diff --git a/arch/arc/kernel/time.c b/arch/arc/kernel/time.c
index dfad287..8b9acf3 100644
--- a/arch/arc/kernel/time.c
+++ b/arch/arc/kernel/time.c
@@ -29,6 +29,8 @@ 
  * which however is currently broken
  */
 
+#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
@@ -38,7 +40,6 @@ 
 #include <linux/init.h>
 #include <linux/timex.h>
 #include <linux/profile.h>
-#include <linux/clocksource.h>
 #include <linux/clockchips.h>
 #include <asm/irq.h>
 #include <asm/arcregs.h>
@@ -283,6 +284,13 @@  void __init time_init(void)
 		 */
 		clocksource_register_hz(&arc_counter, arc_get_core_freq());
 
+#ifdef CONFIG_COMMON_CLK
+	of_clk_init(NULL);
+#endif
+#ifdef CONFIG_CLKSRC_OF
+	clocksource_probe();
+#endif
+
 	/* sets up the periodic event timer */
 	arc_local_timer_setup();
 }