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>

4 files changed, 7 insertions, 12 deletions

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index d453522edb0d..e1dfa24b4fb9 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -751,7 +751,7 @@ MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
 	.map_io		= u8500_map_io,
 	.init_irq	= ux500_init_irq,
 	/* we re-use nomadik timer here */
-	.timer		= &ux500_timer,
+	.init_time	= ux500_timer_init,
 	.handle_irq	= gic_handle_irq,
 	.init_machine	= mop500_init_machine,
 	.init_late	= ux500_init_late,
@@ -761,7 +761,7 @@ MACHINE_START(U8520, "ST-Ericsson U8520 Platform HREFP520")
 	.atag_offset	= 0x100,
 	.map_io		= u8500_map_io,
 	.init_irq	= ux500_init_irq,
-	.timer		= &ux500_timer,
+	.init_time	= ux500_timer_init,
 	.handle_irq	= gic_handle_irq,
 	.init_machine	= mop500_init_machine,
 	.init_late	= ux500_init_late,
@@ -772,7 +772,7 @@ MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
 	.smp		= smp_ops(ux500_smp_ops),
 	.map_io		= u8500_map_io,
 	.init_irq	= ux500_init_irq,
-	.timer		= &ux500_timer,
+	.init_time	= ux500_timer_init,
 	.handle_irq	= gic_handle_irq,
 	.init_machine	= hrefv60_init_machine,
 	.init_late	= ux500_init_late,
@@ -784,7 +784,7 @@ MACHINE_START(SNOWBALL, "Calao Systems Snowball platform")
 	.map_io		= u8500_map_io,
 	.init_irq	= ux500_init_irq,
 	/* we re-use nomadik timer here */
-	.timer		= &ux500_timer,
+	.init_time	= ux500_timer_init,
 	.handle_irq	= gic_handle_irq,
 	.init_machine	= snowball_init_machine,
 	.init_late	= NULL,
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index db0bb75e2c76..7875d3c85df1 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -340,7 +340,7 @@ DT_MACHINE_START(U8500_DT, "ST-Ericsson Ux5x0 platform (Device Tree Support)")
 	.map_io		= u8500_map_io,
 	.init_irq	= ux500_init_irq,
 	/* we re-use nomadik timer here */
-	.timer		= &ux500_timer,
+	.init_time	= ux500_timer_init,
 	.handle_irq	= gic_handle_irq,
 	.init_machine	= u8500_init_machine,
 	.init_late	= NULL,
diff --git a/arch/arm/mach-ux500/include/mach/setup.h b/arch/arm/mach-ux500/include/mach/setup.h
index 6be4c4d2ab88..bddce2b49372 100644
--- a/arch/arm/mach-ux500/include/mach/setup.h
+++ b/arch/arm/mach-ux500/include/mach/setup.h
@@ -28,8 +28,7 @@ extern struct device *ux500_soc_device_init(const char *soc_id);
 struct amba_device;
 extern void __init amba_add_devices(struct amba_device *devs[], int num);
 
-struct sys_timer;
-extern struct sys_timer ux500_timer;
+extern void ux500_timer_init(void);
 
 #define __IO_DEV_DESC(x, sz)	{		\
 	.virtual	= IO_ADDRESS(x),	\
diff --git a/arch/arm/mach-ux500/timer.c b/arch/arm/mach-ux500/timer.c
index 46a724493964..aa2a78acb59e 100644
--- a/arch/arm/mach-ux500/timer.c
+++ b/arch/arm/mach-ux500/timer.c
@@ -46,7 +46,7 @@ const static struct of_device_id prcmu_timer_of_match[] __initconst = {
 	{ },
 };
 
-static void __init ux500_timer_init(void)
+void __init ux500_timer_init(void)
 {
 	void __iomem *mtu_timer_base;
 	void __iomem *prcmu_timer_base;
@@ -99,7 +99,3 @@ dt_fail:
 	clksrc_dbx500_prcmu_init(prcmu_timer_base);
 	ux500_twd_init();
 }
-
-struct sys_timer ux500_timer = {
-	.init		= ux500_timer_init,
-};