[GIT PULL] timer fixes

[Ingo Molnar]

Linus,

Please pull the latest timers-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
timers-urgent-for-linus

   # HEAD: be5769e2061ac40b32daa83e28e1c4aac7133511 
clocksource/drivers/mips-gic-timer: Make gic_clocksource_of_init() return int

Three clocksource driver fixes.

 Thanks,

        Ingo

------------------>
Arnd Bergmann (1):
      clocksource/drivers/kona: Fix get_counter() error handling

Gregory CLEMENT (1):
      clocksource/drivers/time-armada-370-xp: Fix the clock reference

Paul Gortmaker (1):
      clocksource/drivers/mips-gic-timer: Make gic_clocksource_of_init() return 
int


 drivers/clocksource/bcm_kona_timer.c     | 16 ++++++++++------
 drivers/clocksource/mips-gic-timer.c     |  2 +-
 drivers/clocksource/time-armada-370-xp.c |  1 -
 3 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/clocksource/bcm_kona_timer.c 
b/drivers/clocksource/bcm_kona_timer.c
index 7e3fd375a627..92f6e4deee74 100644
--- a/drivers/clocksource/bcm_kona_timer.c
+++ b/drivers/clocksource/bcm_kona_timer.c
@@ -66,10 +66,10 @@ static void kona_timer_disable_and_clear(void __iomem *base)
 
 }
 
-static void
+static int
 kona_timer_get_counter(void __iomem *timer_base, uint32_t *msw, uint32_t *lsw)
 {
-       int loop_limit = 4;
+       int loop_limit = 3;
 
        /*
         * Read 64-bit free running counter
@@ -83,18 +83,19 @@ kona_timer_get_counter(void __iomem *timer_base, uint32_t 
*msw, uint32_t *lsw)
         *      if new hi-word is equal to previously read hi-word then stop.
         */
 
-       while (--loop_limit) {
+       do {
                *msw = readl(timer_base + KONA_GPTIMER_STCHI_OFFSET);
                *lsw = readl(timer_base + KONA_GPTIMER_STCLO_OFFSET);
                if (*msw == readl(timer_base + KONA_GPTIMER_STCHI_OFFSET))
                        break;
-       }
+       } while (--loop_limit);
        if (!loop_limit) {
                pr_err("bcm_kona_timer: getting counter failed.\n");
                pr_err(" Timer will be impacted\n");
+               return -ETIMEDOUT;
        }
 
-       return;
+       return 0;
 }
 
 static int kona_timer_set_next_event(unsigned long clc,
@@ -112,8 +113,11 @@ static int kona_timer_set_next_event(unsigned long clc,
 
        uint32_t lsw, msw;
        uint32_t reg;
+       int ret;
 
-       kona_timer_get_counter(timers.tmr_regs, &msw, &lsw);
+       ret = kona_timer_get_counter(timers.tmr_regs, &msw, &lsw);
+       if (ret)
+               return ret;
 
        /* Load the "next" event tick value */
        writel(lsw + clc, timers.tmr_regs + KONA_GPTIMER_STCM0_OFFSET);
diff --git a/drivers/clocksource/mips-gic-timer.c 
b/drivers/clocksource/mips-gic-timer.c
index d91e8725917c..b4b3ab5a11ad 100644
--- a/drivers/clocksource/mips-gic-timer.c
+++ b/drivers/clocksource/mips-gic-timer.c
@@ -164,7 +164,7 @@ void __init gic_clocksource_init(unsigned int frequency)
        gic_start_count();
 }
 
-static void __init gic_clocksource_of_init(struct device_node *node)
+static int __init gic_clocksource_of_init(struct device_node *node)
 {
        struct clk *clk;
        int ret;
diff --git a/drivers/clocksource/time-armada-370-xp.c 
b/drivers/clocksource/time-armada-370-xp.c
index 719b478d136e..3c39e6f45971 100644
--- a/drivers/clocksource/time-armada-370-xp.c
+++ b/drivers/clocksource/time-armada-370-xp.c
@@ -338,7 +338,6 @@ static int __init armada_xp_timer_init(struct device_node 
*np)
        struct clk *clk = of_clk_get_by_name(np, "fixed");
        int ret;
 
-       clk = of_clk_get(np, 0);
        if (IS_ERR(clk)) {
                pr_err("Failed to get clock");
                return PTR_ERR(clk);