ARM: tegra: move timer.c to drivers/clocksource/

Move arch/arm/mach-tegra/timer.c to drivers/clocksource/tegra20_timer.c
so that the code is co-located with other clocksource drivers, and to
reduce the size of the mach-tegra directory.

Signed-off-by: Stephen Warren <swarren@nvidia.com>

7 files changed, 8 insertions, 9 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 67874b82a4ed..eb9fc2f8acf1 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -642,6 +642,7 @@ config ARCH_TEGRA
         select ARCH_HAS_CPUFREQ
         select CLKDEV_LOOKUP
         select CLKSRC_MMIO
+        select CLKSRC_OF
         select COMMON_CLK
         select GENERIC_CLOCKEVENTS
         select GENERIC_GPIO
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index 0979e8bba78a..bd5d3120cb4b 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -2,7 +2,6 @@ obj-y                                   += common.o
 obj-y                                   += io.o
 obj-y                                   += irq.o
 obj-y                                   += clock.o
-obj-y                                   += timer.o
 obj-y                                   += fuse.o
 obj-y                                   += pmc.o
 obj-y                                   += flowctrl.o
diff --git a/arch/arm/mach-tegra/board-dt-tegra20.c b/arch/arm/mach-tegra/board-dt-tegra20.c
index 3b9956aabf5a..8e35aaea5845 100644
--- a/arch/arm/mach-tegra/board-dt-tegra20.c
+++ b/arch/arm/mach-tegra/board-dt-tegra20.c
@@ -15,6 +15,7 @@
  *
  */
 
+#include <linux/clocksource.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
@@ -203,7 +204,7 @@ DT_MACHINE_START(TEGRA_DT, "nVidia Tegra20 (Flattened Device Tree)")
         .init_early     = tegra20_init_early,
         .init_irq       = tegra_dt_init_irq,
         .handle_irq     = gic_handle_irq,
-        .init_time      = tegra_init_timer,
+        .init_time      = clocksource_of_init,
         .init_machine   = tegra_dt_init,
         .init_late      = tegra_dt_init_late,
         .restart        = tegra_assert_system_reset,
diff --git a/arch/arm/mach-tegra/board-dt-tegra30.c b/arch/arm/mach-tegra/board-dt-tegra30.c
index 381b2f25f0b4..a9ed15dcc3ed 100644
--- a/arch/arm/mach-tegra/board-dt-tegra30.c
+++ b/arch/arm/mach-tegra/board-dt-tegra30.c
@@ -23,6 +23,7 @@
  *
  */
 
+#include <linux/clocksource.h>
 #include <linux/kernel.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
@@ -113,7 +114,7 @@ DT_MACHINE_START(TEGRA30_DT, "NVIDIA Tegra30 (Flattened Device Tree)")
         .init_early     = tegra30_init_early,
         .init_irq       = tegra_dt_init_irq,
         .handle_irq     = gic_handle_irq,
-        .init_time      = tegra_init_timer,
+        .init_time      = clocksource_of_init,
         .init_machine   = tegra30_dt_init,
         .init_late      = tegra_init_late,
         .restart        = tegra_assert_system_reset,
diff --git a/arch/arm/mach-tegra/board.h b/arch/arm/mach-tegra/board.h
index 744cdd246f6a..da8f5a3c4240 100644
--- a/arch/arm/mach-tegra/board.h
+++ b/arch/arm/mach-tegra/board.h
@@ -55,5 +55,4 @@ static inline int harmony_pcie_init(void) { return 0; }
 
 void __init tegra_paz00_wifikill_init(void);
 
-extern void tegra_init_timer(void);
 #endif
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index a33f79240217..b5cc50796a80 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -17,5 +17,6 @@ obj-$(CONFIG_CLKSRC_DBX500_PRCMU)	+= clksrc-dbx500-prcmu.o
 obj-$(CONFIG_ARMADA_370_XP_TIMER)       += time-armada-370-xp.o
 obj-$(CONFIG_ARCH_BCM2835)      += bcm2835_timer.o
 obj-$(CONFIG_SUNXI_TIMER)       += sunxi_timer.o
+obj-$(CONFIG_ARCH_TEGRA)        += tegra20_timer.o
 
 obj-$(CONFIG_CLKSRC_ARM_GENERIC)        += arm_generic.o
diff --git a/arch/arm/mach-tegra/timer.c b/drivers/clocksource/tegra20_timer.c
index b0036e519a15..3b2f94781df4 100644
--- a/arch/arm/mach-tegra/timer.c
+++ b/drivers/clocksource/tegra20_timer.c
@@ -1,6 +1,4 @@
 /*
- * arch/arch/mach-tegra/timer.c
- *
  * Copyright (C) 2010 Google, Inc.
  *
  * Author:
@@ -33,8 +31,6 @@
 #include <asm/smp_twd.h>
 #include <asm/sched_clock.h>
 
-#include "board.h"
-
 #define RTC_SECONDS            0x08
 #define RTC_SHADOW_SECONDS     0x0c
 #define RTC_MILLISECONDS       0x10
@@ -168,7 +164,7 @@ static const struct of_device_id rtc_match[] __initconst = {
         {}
 };
 
-void __init tegra_init_timer(void)
+static void __init tegra20_init_timer(void)
 {
         struct device_node *np;
         struct clk *clk;
@@ -272,6 +268,7 @@ void __init tegra_init_timer(void)
 #endif
         register_persistent_clock(NULL, tegra_read_persistent_clock);
 }
+CLOCKSOURCE_OF_DECLARE(tegra20, "nvidia,tegra20-timer", tegra20_init_timer);
 
 #ifdef CONFIG_PM
 static u32 usec_config;