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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-07-27 00:54:47 -0700 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-07-27 00:54:47 -0700 |
commit | aa7eb8e78d8ecd6cd0475d86ea8385ff9cb47ece (patch) | |
tree | 3f9e98fadd5124fb05e8f6f9b06aa23698d4f215 /arch/arm/plat-nomadik/timer.c | |
parent | cca8edfd2ec2a34d9f50f593bc753bb11e1bc1f5 (diff) | |
parent | 3c6b50141ef9f0a8844bf1357b80c0cdf518bf05 (diff) |
Merge branch 'next' into for-linus
Diffstat (limited to 'arch/arm/plat-nomadik/timer.c')
-rw-r--r-- | arch/arm/plat-nomadik/timer.c | 31 |
1 files changed, 3 insertions, 28 deletions
diff --git a/arch/arm/plat-nomadik/timer.c b/arch/arm/plat-nomadik/timer.c index 41723402006b..ef74e157a9d5 100644 --- a/arch/arm/plat-nomadik/timer.c +++ b/arch/arm/plat-nomadik/timer.c @@ -26,29 +26,6 @@ void __iomem *mtu_base; /* Assigned by machine code */ /* - * Kernel assumes that sched_clock can be called early - * but the MTU may not yet be initialized. - */ -static cycle_t nmdk_read_timer_dummy(struct clocksource *cs) -{ - return 0; -} - -/* clocksource: MTU decrements, so we negate the value being read. */ -static cycle_t nmdk_read_timer(struct clocksource *cs) -{ - return -readl(mtu_base + MTU_VAL(0)); -} - -static struct clocksource nmdk_clksrc = { - .name = "mtu_0", - .rating = 200, - .read = nmdk_read_timer_dummy, - .mask = CLOCKSOURCE_MASK(32), - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - -/* * Override the global weak sched_clock symbol with this * local implementation which uses the clocksource to get some * better resolution when scheduling the kernel. @@ -172,12 +149,10 @@ void __init nmdk_timer_init(void) writel(0, mtu_base + MTU_BGLR(0)); writel(cr | MTU_CRn_ENA, mtu_base + MTU_CR(0)); - /* Now the clock source is ready */ - nmdk_clksrc.read = nmdk_read_timer; - - if (clocksource_register_hz(&nmdk_clksrc, rate)) + if (clocksource_mmio_init(mtu_base + MTU_VAL(0), "mtu_0", + rate, 200, 32, clocksource_mmio_readl_down)) pr_err("timer: failed to initialize clock source %s\n", - nmdk_clksrc.name); + "mtu_0"); init_sched_clock(&cd, nomadik_update_sched_clock, 32, rate); |