linux-kernel - [ 050/262] ARM: OMAP: timer: obey the !CONFIG_OMAP_32K

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Date:	Fri, 28 Sep 2012 11:49:39 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Greg KH <gregkh@...uxfoundation.org>, alan@...rguk.ukuu.org.uk,
	Igor Grinberg <grinberg@...pulab.co.il>,
	Paul Walmsley <paul@...an.com>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Tony Lindgren <tony@...mide.com>
Subject: [ 050/262] ARM: OMAP: timer: obey the !CONFIG_OMAP_32K_TIMER

From: Greg KH <gregkh@...uxfoundation.org>

3.5-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Igor Grinberg <grinberg@...pulab.co.il>

commit 45caae74d238ef6583e9402cb8c550cc0b0f7dbd upstream.

Currently, omap2_sync32k_clocksource_init() function initializes the 32K
timer as the system clock source regardless of the CONFIG_OMAP_32K_TIMER
setting.
Fix this by providing a default implementation for
!CONFIG_OMAP_32K_TIMER case.

Signed-off-by: Igor Grinberg <grinberg@...pulab.co.il>
Reviewed-by: Paul Walmsley <paul@...an.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@...com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/mach-omap2/timer.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -263,6 +263,7 @@ static u32 notrace dmtimer_read_sched_cl
 	return 0;
 }
 
+#ifdef CONFIG_OMAP_32K_TIMER
 /* Setup free-running counter for clocksource */
 static int __init omap2_sync32k_clocksource_init(void)
 {
@@ -302,6 +303,12 @@ static int __init omap2_sync32k_clocksou
 
 	return ret;
 }
+#else
+static inline int omap2_sync32k_clocksource_init(void)
+{
+	return -ENODEV;
+}
+#endif
 
 static void __init omap2_gptimer_clocksource_init(int gptimer_id,
 						const char *fck_source)


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