Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm

* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (416 commits)
  ARM: DMA: add support for DMA debugging
  ARM: PL011: add DMA burst threshold support for ST variants
  ARM: PL011: Add support for transmit DMA
  ARM: PL011: Ensure IRQs are disabled in UART interrupt handler
  ARM: PL011: Separate hardware FIFO size from TTY FIFO size
  ARM: PL011: Allow better handling of vendor data
  ARM: PL011: Ensure error flags are clear at startup
  ARM: PL011: include revision number in boot-time port printk
  ARM: vexpress: add sched_clock() for Versatile Express
  ARM i.MX53: Make MX53 EVK bootable
  ARM i.MX53: Some bug fix about MX53 MSL code
  ARM: 6607/1: sa1100: Update platform device registration
  ARM: 6606/1: sa1100: Fix platform device registration
  ARM i.MX51: rename IPU irqs
  ARM i.MX51: Add ipu clock support
  ARM: imx/mx27_3ds: Add PMIC support
  ARM: DMA: Replace page_to_dma()/dma_to_page() with pfn_to_dma()/dma_to_pfn()
  mx51: fix usb clock support
  MX51: Add support for usb host 2
  arch/arm/plat-mxc/ehci.c: fix errors/typos
  ...

1 files changed, 15 insertions, 7 deletions

diff --git a/arch/arm/mach-u300/timer.c b/arch/arm/mach-u300/timer.c
index 3fc4472719be..3ec58bd2d6e4 100644
--- a/arch/arm/mach-u300/timer.c
+++ b/arch/arm/mach-u300/timer.c
@@ -9,6 +9,7 @@
  * Author: Linus Walleij <linus.walleij@stericsson.com>
  */
 #include <linux/interrupt.h>
+#include <linux/sched.h>
 #include <linux/time.h>
 #include <linux/timex.h>
 #include <linux/clockchips.h>
@@ -21,6 +22,7 @@
 #include <mach/hardware.h>
 
 /* Generic stuff */
+#include <asm/sched_clock.h>
 #include <asm/mach/map.h>
 #include <asm/mach/time.h>
 #include <asm/mach/irq.h>
@@ -352,12 +354,18 @@ static struct clocksource clocksource_u300_1mhz = {
  * this wraps around for now, since it is just a relative time
  * stamp. (Inspired by OMAP implementation.)
  */
+static DEFINE_CLOCK_DATA(cd);
+
 unsigned long long notrace sched_clock(void)
 {
-	return clocksource_cyc2ns(clocksource_u300_1mhz.read(
-				  &clocksource_u300_1mhz),
-				  clocksource_u300_1mhz.mult,
-				  clocksource_u300_1mhz.shift);
+	u32 cyc = readl(U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT2CC);
+	return cyc_to_sched_clock(&cd, cyc, (u32)~0);
+}
+
+static void notrace u300_update_sched_clock(void)
+{
+	u32 cyc = readl(U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT2CC);
+	update_sched_clock(&cd, cyc, (u32)~0);
 }
 
 
@@ -375,6 +383,8 @@ static void __init u300_timer_init(void)
 	clk_enable(clk);
 	rate = clk_get_rate(clk);
 
+	init_sched_clock(&cd, u300_update_sched_clock, 32, rate);
+
 	/*
 	 * Disable the "OS" and "DD" timers - these are designed for Symbian!
 	 * Example usage in cnh1601578 cpu subsystem pd_timer_app.c
@@ -412,9 +422,7 @@ static void __init u300_timer_init(void)
 	writel(U300_TIMER_APP_EGPT2_TIMER_ENABLE,
 		U300_TIMER_APP_VBASE + U300_TIMER_APP_EGPT2);
 
-	clocksource_calc_mult_shift(&clocksource_u300_1mhz,
-				    rate, APPTIMER_MIN_RANGE);
-	if (clocksource_register(&clocksource_u300_1mhz))
+	if (clocksource_register_hz(&clocksource_u300_1mhz, rate))
 		printk(KERN_ERR "timer: failed to initialize clock "
 		       "source %s\n", clocksource_u300_1mhz.name);