ARM: delete struct sys_timer

Now that the only field in struct sys_timer is .init, delete the struct,
and replace the machine descriptor .timer field with the initialization
function itself.

This will enable moving timer drivers into drivers/clocksource without
having to place a public prototype of each struct sys_timer object into
include/linux; the intent is to create a single of_clocksource_init()
function that determines which timer driver to initialize by scanning
the device dtree, much like the proposed irqchip_init() at:
http://www.spinics.net/lists/arm-kernel/msg203686.html

Includes mach-omap2 fixes from Igor Grinberg.

Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Warren <swarren@nvidia.com>

3 files changed, 3 insertions, 11 deletions

diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c
index 4ce77cdc31cc..100a8b764dad 100644
--- a/arch/arm/mach-u300/core.c
+++ b/arch/arm/mach-u300/core.c
@@ -1780,7 +1780,7 @@ MACHINE_START(U300, "Ericsson AB U335 S335/B335 Prototype Board")
         .nr_irqs        = 0,
         .init_irq       = u300_init_irq,
         .handle_irq     = vic_handle_irq,
-        .timer          = &u300_timer,
+        .init_time      = u300_timer_init,
         .init_machine   = u300_init_machine,
         .restart        = u300_restart,
 MACHINE_END
diff --git a/arch/arm/mach-u300/timer.c b/arch/arm/mach-u300/timer.c
index 1da10e20e996..d9e73209c9b8 100644
--- a/arch/arm/mach-u300/timer.c
+++ b/arch/arm/mach-u300/timer.c
@@ -349,7 +349,7 @@ static u32 notrace u300_read_sched_clock(void)
 /*
  * This sets up the system timers, clock source and clock event.
  */
-static void __init u300_timer_init(void)
+void __init u300_timer_init(void)
 {
         struct clk *clk;
         unsigned long rate;
@@ -413,11 +413,3 @@ static void __init u300_timer_init(void)
          * used by hrtimers!
          */
 }
-
-/*
- * Very simple system timer that only register the clock event and
- * clock source.
- */
-struct sys_timer u300_timer = {
-        .init           = u300_timer_init,
-};
diff --git a/arch/arm/mach-u300/timer.h b/arch/arm/mach-u300/timer.h
index b5e9791762e0..d34287bc34f5 100644
--- a/arch/arm/mach-u300/timer.h
+++ b/arch/arm/mach-u300/timer.h
@@ -1 +1 @@
-extern struct sys_timer u300_timer;
+extern void u300_timer_init(void);