ARM: at91: fix warnings in pm.c

Fix a pair of missing statics on un-exported functions and include <linux/platform_data/atmel.h> to provide the declaration of at91_suspend_entering_slow_clock() to fix the following sparse warnings:

arch/arm/mach-at91/pm.c:127:5: warning: symbol 'at91_suspend_entering_slow_clock' was not declared. Should it be static? arch/arm/mach-at91/pm.c:358:6: warning: symbol 'at91rm9200_idle' was not declared. Should it be static? arch/arm/mach-at91/pm.c:367:6: warning: symbol 'at91sam9_idle' was not declared. Should it be static?

Signed-off-by Ben Dooks <[email protected]>

---
Cc: Nicolas Ferre <[email protected]>

Cc Alexandre Belloni <[email protected]>

Cc Jean-Christophe Plagniol-Villard <[email protected]>

Cc linux-arm-kernel at lists.infradead.org

---
 arch/arm/mach-at91/pm.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

arch/arm/mach-at91/pm.c +3 -2

index f062701..b4332b7 100644
@@ -22,6 +22,7 @@
 #include <linux/of_platform.h>
 #include <linux/of_address.h>
 #include <linux/platform_device.h>
+#include <linux/platform_data/atmel.h>
 #include <linux/io.h>
 #include <linux/clk/at91_pmc.h>
 

@@ -355,7 +356,7 @@ static __init void at91_dt_ramc(void)
 	at91_pm_set_standby(standby);
 }
 
-void at91rm9200_idle(void)
+static void at91rm9200_idle(void)
 {
 	/*
 	 * Disable the processor clock.  The processor will be automatically

@@ -364,7 +365,7 @@ void at91rm9200_idle(void)
 	writel(AT91_PMC_PCK, pmc + AT91_PMC_SCDR);
 }
 
-void at91sam9_idle(void)
+static void at91sam9_idle(void)
 {
 	writel(AT91_PMC_PCK, pmc + AT91_PMC_SCDR);
 	cpu_do_idle();