clocksource: mips-gic: Move gic_frequency to clocksource driver

There's no reason for gic_frequency to be global any more and it
certainly doesn't belong in the GIC irqchip driver, so move it to
the GIC clocksource driver.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8137/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/mti-malta/malta-time.c

@@ -46,6 +46,8 @@ static int mips_cpu_timer_irq;
 static int mips_cpu_perf_irq;
 extern int cp0_perfcount_irq;
 
+static unsigned int gic_frequency;
+
 static void mips_timer_dispatch(void)
 {
 	do_IRQ(mips_cpu_timer_irq);

drivers/clocksource/mips-gic-timer.c

@@ -17,6 +17,7 @@
 
 static DEFINE_PER_CPU(struct clock_event_device, gic_clockevent_device);
 static int gic_timer_irq_installed;
+static unsigned int gic_frequency;
 
 static int gic_next_event(unsigned long delta, struct clock_event_device *evt)
 {
@@ -112,6 +113,8 @@ static struct clocksource gic_clocksource = {
 
 void __init gic_clocksource_init(unsigned int frequency)
 {
+	gic_frequency = frequency;
+
 	/* Set clocksource mask. */
 	gic_clocksource.mask = CLOCKSOURCE_MASK(gic_get_count_width());
 

drivers/irqchip/irq-mips-gic.c

@@ -18,7 +18,6 @@
 #include <asm/setup.h>
 #include <asm/traps.h>
 
-unsigned int gic_frequency;
 unsigned int gic_present;
 
 struct gic_pcpu_mask {

include/linux/irqchip/mips-gic.h

@@ -230,7 +230,6 @@
 #define GIC_HWIRQ_TO_SHARED(x)	((x) - GIC_SHARED_HWIRQ_BASE)
 
 extern unsigned int gic_present;
-extern unsigned int gic_frequency;
 
 extern void gic_init(unsigned long gic_base_addr,
 	unsigned long gic_addrspace_size, unsigned int cpu_vec,