---

yaml
---
r: 10580
b: refs/heads/master
c: 9480e30
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a3a3395e487abc4c1371fe319a8ecbb3913a70a4
+refs/heads/master: 9480e307cd88ef09ec9294c7d97ebec18e6d2221

trunk/Documentation/driver-model/driver.txt

@@ -196,67 +196,11 @@ it into a supported low-power state.
 
 	int	(*suspend)	(struct device * dev, pm_message_t state, u32 level);
 
-suspend is called to put the device in a low power state. There are
-several stages to successfully suspending a device, which is denoted in
-the @level parameter. Breaking the suspend transition into several
-stages affords the platform flexibility in performing device power
-management based on the requirements of the system and the
-user-defined policy.
-
-SUSPEND_NOTIFY notifies the device that a suspend transition is about
-to happen. This happens on system power state transitions to verify
-that all devices can successfully suspend.
-
-A driver may choose to fail on this call, which should cause the
-entire suspend transition to fail. A driver should fail only if it
-knows that the device will not be able to be resumed properly when the
-system wakes up again. It could also fail if it somehow determines it
-is in the middle of an operation too important to stop.
-
-SUSPEND_DISABLE tells the device to stop I/O transactions. When it
-stops transactions, or what it should do with unfinished transactions
-is a policy of the driver. After this call, the driver should not
-accept any other I/O requests.
-
-SUSPEND_SAVE_STATE tells the device to save the context of the
-hardware. This includes any bus-specific hardware state and
-device-specific hardware state. A pointer to this saved state can be
-stored in the device's saved_state field.
-
-SUSPEND_POWER_DOWN tells the driver to place the device in the low
-power state requested. 
-
-Whether suspend is called with a given level is a policy of the
-platform. Some levels may be omitted; drivers must not assume the
-reception of any level. However, all levels must be called in the
-order above; i.e. notification will always come before disabling;
-disabling the device will come before suspending the device.
-
-All calls are made with interrupts enabled, except for the
-SUSPEND_POWER_DOWN level.
+suspend is called to put the device in a low power state.
 
 	int	(*resume)	(struct device * dev, u32 level);
 
-Resume is used to bring a device back from a low power state. Like the
-suspend transition, it happens in several stages. 
-
-RESUME_POWER_ON tells the driver to set the power state to the state
-before the suspend call (The device could have already been in a low
-power state before the suspend call to put in a lower power state). 
-
-RESUME_RESTORE_STATE tells the driver to restore the state saved by
-the SUSPEND_SAVE_STATE suspend call. 
-
-RESUME_ENABLE tells the driver to start accepting I/O transactions
-again. Depending on driver policy, the device may already have pending
-I/O requests. 
-
-RESUME_POWER_ON is called with interrupts disabled. The other resume
-levels are called with interrupts enabled. 
-
-As with the various suspend stages, the driver must not assume that
-any other resume calls have been or will be made. Each call should be
-self-contained and not dependent on any external state.
+Resume is used to bring a device back from a low power state.
 
 
 Attributes

trunk/arch/arm/common/locomo.c

@@ -550,15 +550,12 @@ struct locomo_save_data {
 	u16	LCM_SPIMD;
 };
 
-static int locomo_suspend(struct device *dev, pm_message_t state, u32 level)
+static int locomo_suspend(struct device *dev, pm_message_t state)
 {
 	struct locomo *lchip = dev_get_drvdata(dev);
 	struct locomo_save_data *save;
 	unsigned long flags;
 
-	if (level != SUSPEND_DISABLE)
-		return 0;
-
 	save = kmalloc(sizeof(struct locomo_save_data), GFP_KERNEL);
 	if (!save)
 		return -ENOMEM;
@@ -597,16 +594,13 @@ static int locomo_suspend(struct device *dev, pm_message_t state, u32 level)
 	return 0;
 }
 
-static int locomo_resume(struct device *dev, u32 level)
+static int locomo_resume(struct device *dev)
 {
 	struct locomo *lchip = dev_get_drvdata(dev);
 	struct locomo_save_data *save;
 	unsigned long r;
 	unsigned long flags;
 
-	if (level != RESUME_ENABLE)
-		return 0;
-
 	save = (struct locomo_save_data *) dev->power.saved_state;
 	if (!save)
 		return 0;

trunk/arch/arm/common/sa1111.c

@@ -801,17 +801,14 @@ struct sa1111_save_data {
 
 #ifdef CONFIG_PM
 
-static int sa1111_suspend(struct device *dev, pm_message_t state, u32 level)
+static int sa1111_suspend(struct device *dev, pm_message_t state)
 {
 	struct sa1111 *sachip = dev_get_drvdata(dev);
 	struct sa1111_save_data *save;
 	unsigned long flags;
 	unsigned int val;
 	void __iomem *base;
 
-	if (level != SUSPEND_DISABLE)
-		return 0;
-
 	save = kmalloc(sizeof(struct sa1111_save_data), GFP_KERNEL);
 	if (!save)
 		return -ENOMEM;
@@ -856,23 +853,19 @@ static int sa1111_suspend(struct device *dev, pm_message_t state, u32 level)
 /*
  *	sa1111_resume - Restore the SA1111 device state.
  *	@dev: device to restore
- *	@level: resume level
  *
  *	Restore the general state of the SA1111; clock control and
  *	interrupt controller.  Other parts of the SA1111 must be
  *	restored by their respective drivers, and must be called
  *	via LDM after this function.
  */
-static int sa1111_resume(struct device *dev, u32 level)
+static int sa1111_resume(struct device *dev)
 {
 	struct sa1111 *sachip = dev_get_drvdata(dev);
 	struct sa1111_save_data *save;
 	unsigned long flags, id;
 	void __iomem *base;
 
-	if (level != RESUME_ENABLE)
-		return 0;
-
 	save = (struct sa1111_save_data *)dev->power.saved_state;
 	if (!save)
 		return 0;

trunk/arch/arm/common/scoop.c

@@ -102,26 +102,24 @@ static void check_scoop_reg(struct scoop_dev *sdev)
 }
 
 #ifdef CONFIG_PM
-static int scoop_suspend(struct device *dev, pm_message_t state, uint32_t level)
+static int scoop_suspend(struct device *dev, pm_message_t state)
 {
-	if (level == SUSPEND_POWER_DOWN) {
-		struct scoop_dev *sdev = dev_get_drvdata(dev);
+	struct scoop_dev *sdev = dev_get_drvdata(dev);
+
+	check_scoop_reg(sdev);
+	sdev->scoop_gpwr = SCOOP_REG(sdev->base, SCOOP_GPWR);
+	SCOOP_REG(sdev->base, SCOOP_GPWR) = (sdev->scoop_gpwr & ~sdev->suspend_clr) | sdev->suspend_set;
 
-		check_scoop_reg(sdev);
-  		sdev->scoop_gpwr = SCOOP_REG(sdev->base, SCOOP_GPWR);
-		SCOOP_REG(sdev->base, SCOOP_GPWR) = (sdev->scoop_gpwr & ~sdev->suspend_clr) | sdev->suspend_set;
-	}
 	return 0;
 }
 
-static int scoop_resume(struct device *dev, uint32_t level)
+static int scoop_resume(struct device *dev)
 {
-	if (level == RESUME_POWER_ON) {
-		struct scoop_dev *sdev = dev_get_drvdata(dev);
+	struct scoop_dev *sdev = dev_get_drvdata(dev);
+
+	check_scoop_reg(sdev);
+	SCOOP_REG(sdev->base,SCOOP_GPWR) = sdev->scoop_gpwr;
 
-		check_scoop_reg(sdev);
-		SCOOP_REG(sdev->base,SCOOP_GPWR) = sdev->scoop_gpwr;
-	}
 	return 0;
 }
 #else

trunk/arch/arm/mach-pxa/corgi_ssp.c

@@ -222,24 +222,22 @@ static int corgi_ssp_remove(struct device *dev)
 	return 0;
 }
 
-static int corgi_ssp_suspend(struct device *dev, pm_message_t state, u32 level)
+static int corgi_ssp_suspend(struct device *dev, pm_message_t state)
 {
-	if (level == SUSPEND_POWER_DOWN) {
-		ssp_flush(&corgi_ssp_dev);
-		ssp_save_state(&corgi_ssp_dev,&corgi_ssp_state);
-	}
+	ssp_flush(&corgi_ssp_dev);
+	ssp_save_state(&corgi_ssp_dev,&corgi_ssp_state);
+
 	return 0;
 }
 
-static int corgi_ssp_resume(struct device *dev, u32 level)
+static int corgi_ssp_resume(struct device *dev)
 {
-	if (level == RESUME_POWER_ON) {
-		GPSR(ssp_machinfo->cs_lcdcon) = GPIO_bit(ssp_machinfo->cs_lcdcon);  /* High - Disable LCD Control/Timing Gen */
-		GPSR(ssp_machinfo->cs_max1111) = GPIO_bit(ssp_machinfo->cs_max1111); /* High - Disable MAX1111*/
-		GPSR(ssp_machinfo->cs_ads7846) = GPIO_bit(ssp_machinfo->cs_ads7846); /* High - Disable ADS7846*/
-		ssp_restore_state(&corgi_ssp_dev,&corgi_ssp_state);
-		ssp_enable(&corgi_ssp_dev);
-	}
+	GPSR(ssp_machinfo->cs_lcdcon) = GPIO_bit(ssp_machinfo->cs_lcdcon);  /* High - Disable LCD Control/Timing Gen */
+	GPSR(ssp_machinfo->cs_max1111) = GPIO_bit(ssp_machinfo->cs_max1111); /* High - Disable MAX1111*/
+	GPSR(ssp_machinfo->cs_ads7846) = GPIO_bit(ssp_machinfo->cs_ads7846); /* High - Disable ADS7846*/
+	ssp_restore_state(&corgi_ssp_dev,&corgi_ssp_state);
+	ssp_enable(&corgi_ssp_dev);
+
 	return 0;
 }
 

trunk/arch/arm/mach-sa1100/neponset.c

@@ -178,33 +178,27 @@ static int neponset_probe(struct device *dev)
 /*
  * LDM power management.
  */
-static int neponset_suspend(struct device *dev, pm_message_t state, u32 level)
+static int neponset_suspend(struct device *dev, pm_message_t state)
 {
 	/*
 	 * Save state.
 	 */
-	if (level == SUSPEND_SAVE_STATE ||
-	    level == SUSPEND_DISABLE ||
-	    level == SUSPEND_POWER_DOWN) {
-		if (!dev->power.saved_state)
-			dev->power.saved_state = kmalloc(sizeof(unsigned int), GFP_KERNEL);
-		if (!dev->power.saved_state)
-			return -ENOMEM;
-
-		*(unsigned int *)dev->power.saved_state = NCR_0;
-	}
+	if (!dev->power.saved_state)
+		dev->power.saved_state = kmalloc(sizeof(unsigned int), GFP_KERNEL);
+	if (!dev->power.saved_state)
+		return -ENOMEM;
+
+	*(unsigned int *)dev->power.saved_state = NCR_0;
 
 	return 0;
 }
 
-static int neponset_resume(struct device *dev, u32 level)
+static int neponset_resume(struct device *dev)
 {
-	if (level == RESUME_RESTORE_STATE || level == RESUME_ENABLE) {
-		if (dev->power.saved_state) {
-			NCR_0 = *(unsigned int *)dev->power.saved_state;
-			kfree(dev->power.saved_state);
-			dev->power.saved_state = NULL;
-		}
+	if (dev->power.saved_state) {
+		NCR_0 = *(unsigned int *)dev->power.saved_state;
+		kfree(dev->power.saved_state);
+		dev->power.saved_state = NULL;
 	}
 
 	return 0;

trunk/drivers/base/platform.c

@@ -281,27 +281,19 @@ static int platform_suspend(struct device * dev, pm_message_t state)
 {
 	int ret = 0;
 
-	if (dev->driver && dev->driver->suspend) {
-		ret = dev->driver->suspend(dev, state, SUSPEND_DISABLE);
-		if (ret == 0)
-			ret = dev->driver->suspend(dev, state, SUSPEND_SAVE_STATE);
-		if (ret == 0)
-			ret = dev->driver->suspend(dev, state, SUSPEND_POWER_DOWN);
-	}
+	if (dev->driver && dev->driver->suspend)
+		ret = dev->driver->suspend(dev, state);
+
 	return ret;
 }
 
 static int platform_resume(struct device * dev)
 {
 	int ret = 0;
 
-	if (dev->driver && dev->driver->resume) {
-		ret = dev->driver->resume(dev, RESUME_POWER_ON);
-		if (ret == 0)
-			ret = dev->driver->resume(dev, RESUME_RESTORE_STATE);
-		if (ret == 0)
-			ret = dev->driver->resume(dev, RESUME_ENABLE);
-	}
+	if (dev->driver && dev->driver->resume)
+		ret = dev->driver->resume(dev);
+
 	return ret;
 }
 

trunk/drivers/char/s3c2410-rtc.c

@@ -519,30 +519,28 @@ static struct timespec s3c2410_rtc_delta;
 
 static int ticnt_save;
 
-static int s3c2410_rtc_suspend(struct device *dev, pm_message_t state, u32 level)
+static int s3c2410_rtc_suspend(struct device *dev, pm_message_t state)
 {
 	struct rtc_time tm;
 	struct timespec time;
 
 	time.tv_nsec = 0;
 
-	if (level == SUSPEND_POWER_DOWN) {
-		/* save TICNT for anyone using periodic interrupts */
+	/* save TICNT for anyone using periodic interrupts */
 
-		ticnt_save = readb(S3C2410_TICNT);
+	ticnt_save = readb(S3C2410_TICNT);
 
-		/* calculate time delta for suspend */
+	/* calculate time delta for suspend */
 
-		s3c2410_rtc_gettime(&tm);
-		rtc_tm_to_time(&tm, &time.tv_sec);
-		save_time_delta(&s3c2410_rtc_delta, &time);
-		s3c2410_rtc_enable(dev, 0);
-	}
+	s3c2410_rtc_gettime(&tm);
+	rtc_tm_to_time(&tm, &time.tv_sec);
+	save_time_delta(&s3c2410_rtc_delta, &time);
+	s3c2410_rtc_enable(dev, 0);
 
 	return 0;
 }
 
-static int s3c2410_rtc_resume(struct device *dev, u32 level)
+static int s3c2410_rtc_resume(struct device *dev)
 {
 	struct rtc_time tm;
 	struct timespec time;

trunk/drivers/char/sonypi.c

@@ -1167,19 +1167,17 @@ static int sonypi_disable(void)
 #ifdef CONFIG_PM
 static int old_camera_power;
 
-static int sonypi_suspend(struct device *dev, pm_message_t state, u32 level)
+static int sonypi_suspend(struct device *dev, pm_message_t state)
 {
-	if (level == SUSPEND_DISABLE) {
-		old_camera_power = sonypi_device.camera_power;
-		sonypi_disable();
-	}
+	old_camera_power = sonypi_device.camera_power;
+	sonypi_disable();
+
 	return 0;
 }
 
-static int sonypi_resume(struct device *dev, u32 level)
+static int sonypi_resume(struct device *dev)
 {
-	if (level == RESUME_ENABLE)
-		sonypi_enable(old_camera_power);
+	sonypi_enable(old_camera_power);
 	return 0;
 }
 #endif