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authorArnd Bergmann <arnd@arndb.de>2013-05-06 17:38:00 -0400
committerArnd Bergmann <arnd@arndb.de>2013-05-06 17:38:00 -0400
commit4183bef2e093a2f0aab45f2d5fed82b0e02aeacf (patch)
treee84c484db3746a0f3ead0fb7a2bb9e5a42b89e85 /arch/arm/lib/delay.c
parent662478d060a39b8faf2b1fe2fbbb212556c2e052 (diff)
parent775c4f66fd855e68a98fc5049003810fe98e2e20 (diff)
Merge branch 'late/dt' into next/dt2
This is support for the ARM Chromebook, originally scheduled as a "late" pull request. Since it's already late now, we can combine this into the existing next/dt2 branch. * late/dt: ARM: exynos: dts: cros5250: add EC device ARM: dts: Add sbs-battery for exynos5250-snow ARM: dts: Add i2c-arbitrator bus for exynos5250-snow ARM: dts: Add chip-id controller node on Exynos4/5 SoC ARM: EXYNOS: Create virtual I/O mapping for Chip-ID controller using device tree
Diffstat (limited to 'arch/arm/lib/delay.c')
-rw-r--r--arch/arm/lib/delay.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/arm/lib/delay.c b/arch/arm/lib/delay.c
index 6b93f6a1a3c7..64dbfa57204a 100644
--- a/arch/arm/lib/delay.c
+++ b/arch/arm/lib/delay.c
@@ -58,7 +58,7 @@ static void __timer_delay(unsigned long cycles)
58static void __timer_const_udelay(unsigned long xloops) 58static void __timer_const_udelay(unsigned long xloops)
59{ 59{
60 unsigned long long loops = xloops; 60 unsigned long long loops = xloops;
61 loops *= loops_per_jiffy; 61 loops *= arm_delay_ops.ticks_per_jiffy;
62 __timer_delay(loops >> UDELAY_SHIFT); 62 __timer_delay(loops >> UDELAY_SHIFT);
63} 63}
64 64
@@ -73,11 +73,13 @@ void __init register_current_timer_delay(const struct delay_timer *timer)
73 pr_info("Switching to timer-based delay loop\n"); 73 pr_info("Switching to timer-based delay loop\n");
74 delay_timer = timer; 74 delay_timer = timer;
75 lpj_fine = timer->freq / HZ; 75 lpj_fine = timer->freq / HZ;
76 loops_per_jiffy = lpj_fine; 76
77 /* cpufreq may scale loops_per_jiffy, so keep a private copy */
78 arm_delay_ops.ticks_per_jiffy = lpj_fine;
77 arm_delay_ops.delay = __timer_delay; 79 arm_delay_ops.delay = __timer_delay;
78 arm_delay_ops.const_udelay = __timer_const_udelay; 80 arm_delay_ops.const_udelay = __timer_const_udelay;
79 arm_delay_ops.udelay = __timer_udelay; 81 arm_delay_ops.udelay = __timer_udelay;
80 arm_delay_ops.const_clock = true; 82
81 delay_calibrated = true; 83 delay_calibrated = true;
82 } else { 84 } else {
83 pr_info("Ignoring duplicate/late registration of read_current_timer delay\n"); 85 pr_info("Ignoring duplicate/late registration of read_current_timer delay\n");