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From: Tony Lindgren <tony@atomide.com>
To: linux-arm-kernel@lists.arm.linux.org.uk
Cc: linux-omap@vger.kernel.org, Kevin Hilman <khilman@mvista.com>,
	Tony Lindgren <tony@atomide.com>
Subject: [PATCH 14/14] ARM: OMAP: TimerMPU: Remove MPU-timer based sched_clock()
Date: Mon, 17 Mar 2008 11:42:38 +0200	[thread overview]
Message-ID: <1205746958-11242-15-git-send-email-tony@atomide.com> (raw)
In-Reply-To: <1205746958-11242-14-git-send-email-tony@atomide.com>

From: Kevin Hilman <khilman@mvista.com>

Remove MPU-timer based sched_clock() in favor of the common one based
on 32k sync timer which works across all OMAP1/2/3 platforms.

Using 32k based one also gives a valid sched_clock() very early in the
boot process.

Signed-off-by: Kevin Hilman <khilman@mvista.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap1/time.c |   16 ----------------
 1 files changed, 0 insertions(+), 16 deletions(-)

diff --git a/arch/arm/mach-omap1/time.c b/arch/arm/mach-omap1/time.c
index f6cf2b7..5d2b270 100644
--- a/arch/arm/mach-omap1/time.c
+++ b/arch/arm/mach-omap1/time.c
@@ -227,22 +227,6 @@ static void __init omap_init_clocksource(unsigned long rate)
 		printk(err, clocksource_mpu.name);
 }
 
-
-/*
- * Scheduler clock - returns current time in nanosec units.
- */
-unsigned long long sched_clock(void)
-{
-	unsigned long ticks = 0 - omap_mpu_timer_read(1);
-	unsigned long long ticks64;
-
-	ticks64 = omap_mpu_timer2_overflows;
-	ticks64 <<= 32;
-	ticks64 |= ticks;
-
-	return cycles_2_ns(ticks64);
-}
-
 /*
  * ---------------------------------------------------------------------------
  * Timer initialization
-- 
1.5.3.6


  reply	other threads:[~2008-03-17  9:43 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-17  9:42 [PATCH 0/14] Omap patches for post 2.6.25 Tony Lindgren
2008-03-17  9:42 ` [PATCH 1/14] ARM: OMAP: Use gpiolib Tony Lindgren
2008-03-17  9:42   ` [PATCH 2/14] ARM: OMAP: 5912 OSK GPIO updates Tony Lindgren
2008-03-17  9:42     ` [PATCH 3/14] ARM: OMAP: I2C: tps65010 driver converts to gpiolib Tony Lindgren
2008-03-17  9:42       ` [PATCH 4/14] ARM: OMAP: Use gpiolib with tps65010 for OSK 5912 Tony Lindgren
2008-03-17  9:42         ` [PATCH 5/14] ARM: OMAP: Clear level-triggered GPIO interrupts in unmask hook Tony Lindgren
2008-03-17  9:42           ` [PATCH 6/14] ARM: OMAP: use edge/level handlers from generic IRQ framework Tony Lindgren
2008-03-17  9:42             ` [PATCH 7/14] ARM: OMAP: Allow registering pin mux function Tony Lindgren
2008-03-17  9:42               ` [PATCH 8/14] ARM: OMAP: Split omap_cfg_reg() into omap processor specific functions Tony Lindgren
2008-03-17  9:42                 ` [PATCH 9/14] ARM: OMAP: Timer32K: Re-organize duplicated 32k-timer code Tony Lindgren
2008-03-17  9:42                   ` [PATCH 10/14] ARM: OMAP: Timer32K: Move 32k-based sched_clock() to common code Tony Lindgren
2008-03-17  9:42                     ` [PATCH 11/14] ARM: OMAP: Timer32K: Move timer32k to mach-omap1 Tony Lindgren
2008-03-17  9:42                       ` [PATCH 12/14] ARM: OMAP1: Timer32K: Fix timer32K for clockevents and clean it up Tony Lindgren
2008-03-17  9:42                         ` [PATCH 13/14] ARM: OMAP: TimerMPU: Remove unused cycles-to-nsec conversions Tony Lindgren
2008-03-17  9:42                           ` Tony Lindgren [this message]
2008-03-20 16:52                         ` [PATCH 12/14] ARM: OMAP1: Timer32K: Fix timer32K for clockevents and clean it up Russell King - ARM Linux
2008-03-20 18:25                           ` Kevin Hilman
2008-03-21 11:38                             ` Thomas Gleixner
2008-03-21 12:04                             ` Russell King - ARM Linux
2008-03-25 10:09                               ` [PATCH 12/14] ARM: OMAP1: Timer32K: Fix timer32K for clockevents and clean it up, take #2 Tony Lindgren
2008-03-25 22:16                                 ` Russell King - ARM Linux
2008-03-28 12:26                                   ` Tony Lindgren

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