[linux-pm] [PATCH] USB: remove dev->power.power_state
Alan Stern
stern at rowland.harvard.edu
Thu Mar 6 14:00:58 PST 2008
power.power_state is scheduled for removal. This patch (as1053)
removes all uses of that field from drivers/usb. Almost all of them
were write-only, the most significant exceptions being sl811-hcd.c and
u132-hcd.c.
Part of this patch was written by Pavel Machek.
Signed-off-by: Alan Stern <stern at rowland.harvard.edu>
CC: David Brownell <david-b at pacbell.net>
---
Index: usb-2.6/drivers/usb/core/driver.c
===================================================================
--- usb-2.6.orig/drivers/usb/core/driver.c
+++ usb-2.6/drivers/usb/core/driver.c
@@ -797,8 +797,6 @@ static int usb_suspend_device(struct usb
done:
dev_vdbg(&udev->dev, "%s: status %d\n", __func__, status);
- if (status == 0)
- udev->dev.power.power_state.event = msg.event;
return status;
}
@@ -827,10 +825,8 @@ static int usb_resume_device(struct usb_
done:
dev_vdbg(&udev->dev, "%s: status %d\n", __func__, status);
- if (status == 0) {
+ if (status == 0)
udev->autoresume_disabled = 0;
- udev->dev.power.power_state.event = PM_EVENT_ON;
- }
return status;
}
@@ -1183,8 +1179,7 @@ static int usb_resume_both(struct usb_de
}
} else {
- /* Needed for setting udev->dev.power.power_state.event,
- * for possible debugging message, and for reset_resume. */
+ /* Needed for reset-resume */
status = usb_resume_device(udev);
}
@@ -1197,7 +1192,8 @@ static int usb_resume_both(struct usb_de
done:
dev_vdbg(&udev->dev, "%s: status %d\n", __func__, status);
- udev->reset_resume = 0;
+ if (!status)
+ udev->reset_resume = 0;
return status;
}
Index: usb-2.6/drivers/usb/core/hcd-pci.c
===================================================================
--- usb-2.6.orig/drivers/usb/core/hcd-pci.c
+++ usb-2.6/drivers/usb/core/hcd-pci.c
@@ -73,7 +73,6 @@ int usb_hcd_pci_probe(struct pci_dev *de
if (pci_enable_device(dev) < 0)
return -ENODEV;
dev->current_state = PCI_D0;
- dev->dev.power.power_state = PMSG_ON;
if (!dev->irq) {
dev_err(&dev->dev,
@@ -302,8 +301,6 @@ int usb_hcd_pci_suspend(struct pci_dev *
done:
if (retval == 0) {
- dev->dev.power.power_state = PMSG_SUSPEND;
-
#ifdef CONFIG_PPC_PMAC
/* Disable ASIC clocks for USB */
if (machine_is(powermac)) {
@@ -406,8 +403,6 @@ int usb_hcd_pci_resume(struct pci_dev *d
pci_set_master(dev);
pci_restore_state(dev);
- dev->dev.power.power_state = PMSG_ON;
-
clear_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
if (hcd->driver->resume) {
Index: usb-2.6/drivers/usb/core/usb.h
===================================================================
--- usb-2.6.orig/drivers/usb/core/usb.h
+++ usb-2.6/drivers/usb/core/usb.h
@@ -114,13 +114,11 @@ static inline int is_usb_device_driver(s
static inline void mark_active(struct usb_interface *f)
{
f->is_active = 1;
- f->dev.power.power_state.event = PM_EVENT_ON;
}
static inline void mark_quiesced(struct usb_interface *f)
{
f->is_active = 0;
- f->dev.power.power_state.event = PM_EVENT_SUSPEND;
}
static inline int is_active(const struct usb_interface *f)
Index: usb-2.6/drivers/usb/misc/usbtest.c
===================================================================
--- usb-2.6.orig/drivers/usb/misc/usbtest.c
+++ usb-2.6/drivers/usb/misc/usbtest.c
@@ -1563,7 +1563,8 @@ usbtest_ioctl (struct usb_interface *int
if (mutex_lock_interruptible(&dev->lock))
return -ERESTARTSYS;
- if (intf->dev.power.power_state.event != PM_EVENT_ON) {
+ /* FIXME: What if a system sleep starts while a test is running? */
+ if (!intf->is_active) {
mutex_unlock(&dev->lock);
return -EHOSTUNREACH;
}
Index: usb-2.6/drivers/usb/gadget/dummy_hcd.c
===================================================================
--- usb-2.6.orig/drivers/usb/gadget/dummy_hcd.c
+++ usb-2.6/drivers/usb/gadget/dummy_hcd.c
@@ -900,7 +900,6 @@ static int dummy_udc_suspend (struct pla
set_link_state (dum);
spin_unlock_irq (&dum->lock);
- pdev->dev.power.power_state = state;
usb_hcd_poll_rh_status (dummy_to_hcd (dum));
return 0;
}
@@ -915,7 +914,6 @@ static int dummy_udc_resume (struct plat
set_link_state (dum);
spin_unlock_irq (&dum->lock);
- pdev->dev.power.power_state = PMSG_ON;
usb_hcd_poll_rh_status (dummy_to_hcd (dum));
return 0;
}
Index: usb-2.6/drivers/usb/gadget/omap_udc.c
===================================================================
--- usb-2.6.orig/drivers/usb/gadget/omap_udc.c
+++ usb-2.6/drivers/usb/gadget/omap_udc.c
@@ -1265,8 +1265,6 @@ static int can_pullup(struct omap_udc *u
static void pullup_enable(struct omap_udc *udc)
{
- udc->gadget.dev.parent->power.power_state = PMSG_ON;
- udc->gadget.dev.power.power_state = PMSG_ON;
UDC_SYSCON1_REG |= UDC_PULLUP_EN;
if (!gadget_is_otg(&udc->gadget) && !cpu_is_omap15xx())
OTG_CTRL_REG |= OTG_BSESSVLD;
@@ -3061,8 +3059,6 @@ static int omap_udc_suspend(struct platf
omap_pullup(&udc->gadget, 0);
}
- udc->gadget.dev.power.power_state = PMSG_SUSPEND;
- udc->gadget.dev.parent->power.power_state = PMSG_SUSPEND;
return 0;
}
Index: usb-2.6/drivers/usb/host/ehci-dbg.c
===================================================================
--- usb-2.6.orig/drivers/usb/host/ehci-dbg.c
+++ usb-2.6/drivers/usb/host/ehci-dbg.c
@@ -670,7 +670,7 @@ static ssize_t fill_registers_buffer(str
spin_lock_irqsave (&ehci->lock, flags);
- if (buf->bus->controller->power.power_state.event) {
+ if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) {
size = scnprintf (next, size,
"bus %s, device %s (driver " DRIVER_VERSION ")\n"
"%s\n"
Index: usb-2.6/drivers/usb/host/ehci-ps3.c
===================================================================
--- usb-2.6.orig/drivers/usb/host/ehci-ps3.c
+++ usb-2.6/drivers/usb/host/ehci-ps3.c
@@ -125,7 +125,6 @@ static int ps3_ehci_probe(struct ps3_sys
goto fail_irq;
}
- dev->core.power.power_state = PMSG_ON;
dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */
hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev->core.bus_id);
Index: usb-2.6/drivers/usb/host/isp116x-hcd.c
===================================================================
--- usb-2.6.orig/drivers/usb/host/isp116x-hcd.c
+++ usb-2.6/drivers/usb/host/isp116x-hcd.c
@@ -1442,11 +1442,6 @@ static int isp116x_bus_resume(struct usb
break;
case HCCONTROL_USB_OPER:
spin_unlock_irq(&isp116x->lock);
- /* Without setting power_state here the
- SUSPENDED state won't be removed from
- sysfs/usbN/power.state as a response to remote
- wakeup. Maybe in the future. */
- hcd->self.root_hub->dev.power.power_state = PMSG_ON;
return 0;
default:
/* HCCONTROL_USB_RESET: this may happen, when during
@@ -1460,7 +1455,6 @@ static int isp116x_bus_resume(struct usb
if ((isp116x->rhdesca & RH_A_NDP) == 2)
isp116x_hub_control(hcd, SetPortFeature,
USB_PORT_FEAT_POWER, 2, NULL, 0);
- hcd->self.root_hub->dev.power.power_state = PMSG_ON;
return 0;
}
@@ -1486,8 +1480,6 @@ static int isp116x_bus_resume(struct usb
isp116x_write_reg32(isp116x, HCCONTROL,
(val & ~HCCONTROL_HCFS) | HCCONTROL_USB_OPER);
spin_unlock_irq(&isp116x->lock);
- /* see analogous comment above */
- hcd->self.root_hub->dev.power.power_state = PMSG_ON;
hcd->state = HC_STATE_RUNNING;
return 0;
@@ -1663,7 +1655,6 @@ static int __devinit isp116x_probe(struc
static int isp116x_suspend(struct platform_device *dev, pm_message_t state)
{
VDBG("%s: state %x\n", __func__, state.event);
- dev->dev.power.power_state = state;
return 0;
}
@@ -1672,8 +1663,7 @@ static int isp116x_suspend(struct platfo
*/
static int isp116x_resume(struct platform_device *dev)
{
- VDBG("%s: state %x\n", __func__, dev->power.power_state.event);
- dev->dev.power.power_state = PMSG_ON;
+ VDBG("%s\n", __func__);
return 0;
}
Index: usb-2.6/drivers/usb/host/ohci-dbg.c
===================================================================
--- usb-2.6.orig/drivers/usb/host/ohci-dbg.c
+++ usb-2.6/drivers/usb/host/ohci-dbg.c
@@ -655,7 +655,7 @@ static ssize_t fill_registers_buffer(str
hcd->product_desc,
hcd_name);
- if (bus->controller->power.power_state.event) {
+ if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) {
size -= scnprintf (next, size,
"SUSPENDED (no register access)\n");
goto done;
Index: usb-2.6/drivers/usb/host/ohci-ep93xx.c
===================================================================
--- usb-2.6.orig/drivers/usb/host/ohci-ep93xx.c
+++ usb-2.6/drivers/usb/host/ohci-ep93xx.c
@@ -177,7 +177,6 @@ static int ohci_hcd_ep93xx_drv_suspend(s
ep93xx_stop_hc(&pdev->dev);
hcd->state = HC_STATE_SUSPENDED;
- pdev->dev.power.power_state = PMSG_SUSPEND;
return 0;
}
@@ -193,7 +192,6 @@ static int ohci_hcd_ep93xx_drv_resume(st
ohci->next_statechange = jiffies;
ep93xx_start_hc(&pdev->dev);
- pdev->dev.power.power_state = PMSG_ON;
usb_hcd_resume_root_hub(hcd);
return 0;
Index: usb-2.6/drivers/usb/host/ohci-omap.c
===================================================================
--- usb-2.6.orig/drivers/usb/host/ohci-omap.c
+++ usb-2.6/drivers/usb/host/ohci-omap.c
@@ -505,7 +505,6 @@ static int ohci_omap_suspend(struct plat
omap_ohci_clock_power(0);
ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED;
- dev->dev.power.power_state = PMSG_SUSPEND;
return 0;
}
@@ -518,7 +517,6 @@ static int ohci_omap_resume(struct platf
ohci->next_statechange = jiffies;
omap_ohci_clock_power(1);
- dev->dev.power.power_state = PMSG_ON;
usb_hcd_resume_root_hub(platform_get_drvdata(dev));
return 0;
}
Index: usb-2.6/drivers/usb/host/ohci-ps3.c
===================================================================
--- usb-2.6.orig/drivers/usb/host/ohci-ps3.c
+++ usb-2.6/drivers/usb/host/ohci-ps3.c
@@ -127,7 +127,6 @@ static int ps3_ohci_probe(struct ps3_sys
goto fail_irq;
}
- dev->core.power.power_state = PMSG_ON;
dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */
hcd = usb_create_hcd(&ps3_ohci_hc_driver, &dev->core, dev->core.bus_id);
Index: usb-2.6/drivers/usb/host/ohci-pxa27x.c
===================================================================
--- usb-2.6.orig/drivers/usb/host/ohci-pxa27x.c
+++ usb-2.6/drivers/usb/host/ohci-pxa27x.c
@@ -339,7 +339,6 @@ static int ohci_hcd_pxa27x_drv_suspend(s
pxa27x_stop_hc(&pdev->dev);
hcd->state = HC_STATE_SUSPENDED;
- pdev->dev.power.power_state = PMSG_SUSPEND;
return 0;
}
@@ -357,7 +356,6 @@ static int ohci_hcd_pxa27x_drv_resume(st
if ((status = pxa27x_start_hc(&pdev->dev)) < 0)
return status;
- pdev->dev.power.power_state = PMSG_ON;
usb_hcd_resume_root_hub(hcd);
return 0;
Index: usb-2.6/drivers/usb/host/ohci-sm501.c
===================================================================
--- usb-2.6.orig/drivers/usb/host/ohci-sm501.c
+++ usb-2.6/drivers/usb/host/ohci-sm501.c
@@ -224,7 +224,6 @@ static int ohci_sm501_suspend(struct pla
sm501_unit_power(dev->parent, SM501_GATE_USB_HOST, 0);
ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED;
- dev->power.power_state = PMSG_SUSPEND;
return 0;
}
@@ -238,7 +237,6 @@ static int ohci_sm501_resume(struct plat
ohci->next_statechange = jiffies;
sm501_unit_power(dev->parent, SM501_GATE_USB_HOST, 1);
- dev->power.power_state = PMSG_ON;
usb_hcd_resume_root_hub(platform_get_drvdata(pdev));
return 0;
}
Index: usb-2.6/drivers/usb/host/r8a66597-hcd.c
===================================================================
--- usb-2.6.orig/drivers/usb/host/r8a66597-hcd.c
+++ usb-2.6/drivers/usb/host/r8a66597-hcd.c
@@ -2106,13 +2106,11 @@ static struct hc_driver r8a66597_hc_driv
#if defined(CONFIG_PM)
static int r8a66597_suspend(struct platform_device *pdev, pm_message_t state)
{
- pdev->dev.power.power_state = state;
return 0;
}
static int r8a66597_resume(struct platform_device *pdev)
{
- pdev->dev.power.power_state = PMSG_ON;
return 0;
}
#else /* if defined(CONFIG_PM) */
Index: usb-2.6/drivers/usb/host/sl811-hcd.c
===================================================================
--- usb-2.6.orig/drivers/usb/host/sl811-hcd.c
+++ usb-2.6/drivers/usb/host/sl811-hcd.c
@@ -93,12 +93,10 @@ static void port_power(struct sl811 *sl8
sl811->port1 = (1 << USB_PORT_FEAT_POWER);
sl811->irq_enable = SL11H_INTMASK_INSRMV;
- hcd->self.controller->power.power_state = PMSG_ON;
} else {
sl811->port1 = 0;
sl811->irq_enable = 0;
hcd->state = HC_STATE_HALT;
- hcd->self.controller->power.power_state = PMSG_SUSPEND;
}
sl811->ctrl1 = 0;
sl811_write(sl811, SL11H_IRQ_ENABLE, 0);
@@ -1771,8 +1769,6 @@ sl811h_suspend(struct platform_device *d
port_power(sl811, 0);
break;
}
- if (retval == 0)
- dev->dev.power.power_state = state;
return retval;
}
@@ -1785,15 +1781,13 @@ sl811h_resume(struct platform_device *de
/* with no "check to see if VBUS is still powered" board hook,
* let's assume it'd only be powered to enable remote wakeup.
*/
- if (dev->dev.power.power_state.event == PM_EVENT_SUSPEND
- || !device_can_wakeup(&hcd->self.root_hub->dev)) {
+ if (!sl811->port1 || !device_can_wakeup(&hcd->self.root_hub->dev)) {
sl811->port1 = 0;
port_power(sl811, 1);
usb_root_hub_lost_power(hcd->self.root_hub);
return 0;
}
- dev->dev.power.power_state = PMSG_ON;
return sl811h_bus_resume(hcd);
}
Index: usb-2.6/drivers/usb/host/u132-hcd.c
===================================================================
--- usb-2.6.orig/drivers/usb/host/u132-hcd.c
+++ usb-2.6/drivers/usb/host/u132-hcd.c
@@ -1534,11 +1534,9 @@ static void u132_power(struct u132 *u132
if (u132->power)
return;
u132->power = 1;
- hcd->self.controller->power.power_state = PMSG_ON;
} else {
u132->power = 0;
hcd->state = HC_STATE_HALT;
- hcd->self.controller->power.power_state = PMSG_SUSPEND;
}
}
@@ -3227,8 +3225,6 @@ static int u132_suspend(struct platform_
}
break;
}
- if (retval == 0)
- pdev->dev.power.power_state = state;
return retval;
}
}
@@ -3246,14 +3242,13 @@ static int u132_resume(struct platform_d
return -ESHUTDOWN;
} else {
int retval = 0;
- if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
+ if (!u132->port[0].power) {
int ports = MAX_U132_PORTS;
while (ports-- > 0) {
port_power(u132, ports, 1);
}
retval = 0;
} else {
- pdev->dev.power.power_state = PMSG_ON;
retval = u132_bus_resume(hcd);
}
return retval;
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