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Merge branch 'msm-fix' of git://codeaurora.org/quic/kernel/davidb/linux-msm 

* 'msm-fix' of git://codeaurora.org/quic/kernel/davidb/linux-msm:
  msm: timer: Fix DGT rate on 8960 and 8660
  msm: timer: compensate for timer shift in msm_read_timer_count
  msm: timer: Fix SMP build error
This commit is contained in:
Linus Torvalds 2011-06-20 20:11:34 -07:00
parent eda0841094 fdb9c3cd51
commit 85d45adef0
1 changed files with 11 additions and 3 deletions
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14
arch/arm/mach-msm/timer.c
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@ -23,6 +23,8 @@
#include <linux/io.h>
#include <asm/mach/time.h>
#include <asm/hardware/gic.h>
#include <mach/msm_iomap.h>
#include <mach/cpu.h>
@ -55,10 +57,12 @@ enum timer_location {
#if defined(CONFIG_ARCH_QSD8X50)
#define DGT_HZ (19200000 / 4) /* 19.2 MHz / 4 by default */
#define MSM_DGT_SHIFT (0)
#elif defined(CONFIG_ARCH_MSM7X30) || defined(CONFIG_ARCH_MSM8X60) || \
defined(CONFIG_ARCH_MSM8960)
#elif defined(CONFIG_ARCH_MSM7X30)
#define DGT_HZ (24576000 / 4) /* 24.576 MHz (LPXO) / 4 by default */
#define MSM_DGT_SHIFT (0)
#elif defined(CONFIG_ARCH_MSM8X60) || defined(CONFIG_ARCH_MSM8960)
#define DGT_HZ (27000000 / 4) /* 27 MHz (PXO) / 4 by default */
#define MSM_DGT_SHIFT (0)
#else
#define DGT_HZ 19200000 /* 19.2 MHz or 600 KHz after shift */
#define MSM_DGT_SHIFT (5)
@ -100,7 +104,11 @@ static cycle_t msm_read_timer_count(struct clocksource *cs)
{
struct msm_clock *clk = container_of(cs, struct msm_clock, clocksource);
return readl(clk->global_counter);
/*
* Shift timer count down by a constant due to unreliable lower bits
* on some targets.
*/
return readl(clk->global_counter) >> clk->shift;
}
static struct msm_clock *clockevent_to_clock(struct clock_event_device *evt)