[PATCH] DRIVER MODEL: Get rid of the obsolete tri-level suspend/resume callbacks

In PM v1, all devices were called at SUSPEND_DISABLE level.  Then
all devices were called at SUSPEND_SAVE_STATE level, and finally
SUSPEND_POWER_DOWN level.  However, with PM v2, to maintain
compatibility for platform devices, I arranged for the PM v2
suspend/resume callbacks to call the old PM v1 suspend/resume
callbacks three times with each level in order so that existing
drivers continued to work.

Since this is obsolete infrastructure which is no longer necessary,
we can remove it.  Here's an (untested) patch to do exactly that.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

3 files changed, 14 insertions, 34 deletions

diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 583db7c..f2bdf4e 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -935,14 +935,10 @@ static int dummy_udc_remove (struct device *dev)
 	return 0;
 }
 
-static int dummy_udc_suspend (struct device *dev, pm_message_t state,
-		u32 level)
+static int dummy_udc_suspend (struct device *dev, pm_message_t state)
 {
 	struct dummy	*dum = dev_get_drvdata(dev);
 
-	if (level != SUSPEND_DISABLE)
-		return 0;
-
 	dev_dbg (dev, "%s\n", __FUNCTION__);
 	spin_lock_irq (&dum->lock);
 	dum->udc_suspended = 1;
@@ -954,13 +950,10 @@ static int dummy_udc_suspend (struct device *dev, pm_message_t state,
 	return 0;
 }
 
-static int dummy_udc_resume (struct device *dev, u32 level)
+static int dummy_udc_resume (struct device *dev)
 {
 	struct dummy	*dum = dev_get_drvdata(dev);
 
-	if (level != RESUME_ENABLE)
-		return 0;
-
 	dev_dbg (dev, "%s\n", __FUNCTION__);
 	spin_lock_irq (&dum->lock);
 	dum->udc_suspended = 0;
@@ -1936,14 +1929,10 @@ static int dummy_hcd_remove (struct device *dev)
 	return 0;
 }
 
-static int dummy_hcd_suspend (struct device *dev, pm_message_t state,
-		u32 level)
+static int dummy_hcd_suspend (struct device *dev, pm_message_t state)
 {
 	struct usb_hcd		*hcd;
 
-	if (level != SUSPEND_DISABLE)
-		return 0;
-
 	dev_dbg (dev, "%s\n", __FUNCTION__);
 	hcd = dev_get_drvdata (dev);
 
@@ -1958,13 +1947,10 @@ static int dummy_hcd_suspend (struct device *dev, pm_message_t state,
 	return 0;
 }
 
-static int dummy_hcd_resume (struct device *dev, u32 level)
+static int dummy_hcd_resume (struct device *dev)
 {
 	struct usb_hcd		*hcd;
 
-	if (level != RESUME_ENABLE)
-		return 0;
-
 	dev_dbg (dev, "%s\n", __FUNCTION__);
 	hcd = dev_get_drvdata (dev);
 	hcd->state = HC_STATE_RUNNING;
diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c
index ff5533e..58b3ec9 100644
--- a/drivers/usb/gadget/omap_udc.c
+++ b/drivers/usb/gadget/omap_udc.c
@@ -2909,12 +2909,10 @@ static int __exit omap_udc_remove(struct device *dev)
  * may involve talking to an external transceiver (e.g. isp1301).
  */
 
-static int omap_udc_suspend(struct device *dev, pm_message_t message, u32 level)
+static int omap_udc_suspend(struct device *dev, pm_message_t message)
 {
 	u32	devstat;
 
-	if (level != SUSPEND_POWER_DOWN)
-		return 0;
 	devstat = UDC_DEVSTAT_REG;
 
 	/* we're requesting 48 MHz clock if the pullup is enabled
@@ -2931,11 +2929,8 @@ static int omap_udc_suspend(struct device *dev, pm_message_t message, u32 level)
 	return 0;
 }
 
-static int omap_udc_resume(struct device *dev, u32 level)
+static int omap_udc_resume(struct device *dev)
 {
-	if (level != RESUME_POWER_ON)
-		return 0;
-
 	DBG("resume + wakeup/SRP\n");
 	omap_pullup(&udc->gadget, 1);
 
diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c
index 73f8c94..00dfe42 100644
--- a/drivers/usb/gadget/pxa2xx_udc.c
+++ b/drivers/usb/gadget/pxa2xx_udc.c
@@ -2602,24 +2602,23 @@ static int __exit pxa2xx_udc_remove(struct device *_dev)
  * VBUS IRQs should probably be ignored so that the PXA device just acts
  * "dead" to USB hosts until system resume.
  */
-static int pxa2xx_udc_suspend(struct device *dev, pm_message_t state, u32 level)
+static int pxa2xx_udc_suspend(struct device *dev, pm_message_t state)
 {
 	struct pxa2xx_udc	*udc = dev_get_drvdata(dev);
 
-	if (level == SUSPEND_POWER_DOWN) {
-		if (!udc->mach->udc_command)
-			WARN("USB host won't detect disconnect!\n");
-		pullup(udc, 0);
-	}
+	if (!udc->mach->udc_command)
+		WARN("USB host won't detect disconnect!\n");
+	pullup(udc, 0);
+
 	return 0;
 }
 
-static int pxa2xx_udc_resume(struct device *dev, u32 level)
+static int pxa2xx_udc_resume(struct device *dev)
 {
 	struct pxa2xx_udc	*udc = dev_get_drvdata(dev);
 
-	if (level == RESUME_POWER_ON)
-		pullup(udc, 1);
+	pullup(udc, 1);
+
 	return 0;
 }