linux-kernel - [PATCH v8 5/8] ARM: omap: Consolidate OMAP3 time keeping and irq enable

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Message-Id: <1332274969-15782-6-git-send-email-rob.lee@linaro.org>
Date:	Tue, 20 Mar 2012 15:22:46 -0500
From:	Robert Lee <rob.lee@...aro.org>
To:	len.brown@...el.com
Cc:	akpm@...ux-foundation.org, rjw@...k.pl, khilman@...com,
	robherring2@...il.com, Baohua.Song@....com,
	amit.kucheria@...aro.org, nicolas.ferre@...el.com,
	linux@...im.org.za, kgene.kim@...sung.com, amit.kachhap@...aro.org,
	magnus.damm@...il.com, nsekhar@...com, daniel.lezcano@...aro.org,
	mturquette@...aro.org, vincent.guittot@...aro.org,
	arnd.bergmann@...aro.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linaro-dev@...ts.linaro.org,
	patches@...aro.org, deepthi@...ux.vnet.ibm.com,
	broonie@...nsource.wolfsonmicro.com, nicolas.pitre@...aro.org,
	linux@....linux.org.uk, jean.pihet@...oldbits.com,
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	kernel@...tstofly.org, lethal@...ux-sh.org, jon-hunter@...com,
	tony@...mide.com, linux-omap@...r.kernel.org,
	linux-sh@...r.kernel.org, linux-pm@...r.kernel.org
Subject: [PATCH v8 5/8] ARM: omap: Consolidate OMAP3 time keeping and irq enable

Use core cpuidle timekeeping and irqen wrapper and remove that
handling from this code.

Signed-off-by: Robert Lee <rob.lee@...aro.org>
Reviewed-by: Kevin Hilman <khilman@...com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@...aro.org>
Tested-by: Jean Pihet<j-pihet@...com>
Acked-by: Jean Pihet<j-pihet@...com>
---
 arch/arm/mach-omap2/cpuidle34xx.c |   42 +++++++++++++++----------------------
 1 file changed, 17 insertions(+), 25 deletions(-)

diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c
index 464cffd..5358664 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -87,29 +87,14 @@ static int _cpuidle_deny_idle(struct powerdomain *pwrdm,
 	return 0;
 }
 
-/**
- * omap3_enter_idle - Programs OMAP3 to enter the specified state
- * @dev: cpuidle device
- * @drv: cpuidle driver
- * @index: the index of state to be entered
- *
- * Called from the CPUidle framework to program the device to the
- * specified target state selected by the governor.
- */
-static int omap3_enter_idle(struct cpuidle_device *dev,
+static int __omap3_enter_idle(struct cpuidle_device *dev,
 				struct cpuidle_driver *drv,
 				int index)
 {
 	struct omap3_idle_statedata *cx =
 			cpuidle_get_statedata(&dev->states_usage[index]);
-	struct timespec ts_preidle, ts_postidle, ts_idle;
 	u32 mpu_state = cx->mpu_state, core_state = cx->core_state;
-	int idle_time;
-
-	/* Used to keep track of the total time in idle */
-	getnstimeofday(&ts_preidle);
 
-	local_irq_disable();
 	local_fiq_disable();
 
 	pwrdm_set_next_pwrst(mpu_pd, mpu_state);
@@ -148,22 +133,29 @@ static int omap3_enter_idle(struct cpuidle_device *dev,
 	}
 
 return_sleep_time:
-	getnstimeofday(&ts_postidle);
-	ts_idle = timespec_sub(ts_postidle, ts_preidle);
 
-	local_irq_enable();
 	local_fiq_enable();
 
-	idle_time = ts_idle.tv_nsec / NSEC_PER_USEC + ts_idle.tv_sec * \
-								USEC_PER_SEC;
-
-	/* Update cpuidle counters */
-	dev->last_residency = idle_time;
-
 	return index;
 }
 
 /**
+ * omap3_enter_idle - Programs OMAP3 to enter the specified state
+ * @dev: cpuidle device
+ * @drv: cpuidle driver
+ * @index: the index of state to be entered
+ *
+ * Called from the CPUidle framework to program the device to the
+ * specified target state selected by the governor.
+ */
+static inline int omap3_enter_idle(struct cpuidle_device *dev,
+				struct cpuidle_driver *drv,
+				int index)
+{
+	return cpuidle_wrap_enter(dev, drv, index, __omap3_enter_idle);
+}
+
+/**
  * next_valid_state - Find next valid C-state
  * @dev: cpuidle device
  * @drv: cpuidle driver
-- 
1.7.9.4

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