[PATCH] USB: EHCI updates (4/4) driver model wakeup flags
This teaches the EHCI driver to use the new driver model wakeup flags,
replacing the similar ones in the HCD glue. It also adds a workaround
for the current glitch whereby PCI init doesn't init the wakeup flags
from the PCI PM capabilities. (EHCI controllers don't worry about
legacy mode; the PCI PM capability would always do the job.)
Signed-off-by: David Brownell <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
commit 2c1c3c4cd5f796b1912c65aaf3bf48c0ddf11f5e
tree d0adc25607629f4fbb9f45cc498f5c155d520291
parent 8d7802ed3c617120863f84346638d1cf1c96137b
author David Brownell <[EMAIL PROTECTED]> Mon, 07 Nov 2005 15:24:46 -0800
committer Greg Kroah-Hartman <[EMAIL PROTECTED]> Wed, 04 Jan 2006 13:48:30 -0800
drivers/usb/host/ehci-hcd.c | 2 +-
drivers/usb/host/ehci-hub.c | 4 ++--
drivers/usb/host/ehci-pci.c | 11 ++++++++++-
3 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 29f52a4..dd87102 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -624,7 +624,7 @@ static irqreturn_t ehci_irq (struct usb_
}
/* remote wakeup [4.3.1] */
- if ((status & STS_PCD) && hcd->remote_wakeup) {
+ if ((status & STS_PCD) && device_may_wakeup(&hcd->self.root_hub->dev)) {
unsigned i = HCS_N_PORTS (ehci->hcs_params);
/* resume root hub? */
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 82caf33..69b0b9b 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -59,7 +59,7 @@ static int ehci_bus_suspend (struct usb_
if ((t1 & PORT_PE) && !(t1 & PORT_OWNER))
t2 |= PORT_SUSPEND;
- if (hcd->remote_wakeup)
+ if (device_may_wakeup(&hcd->self.root_hub->dev))
t2 |= PORT_WKOC_E|PORT_WKDISC_E|PORT_WKCONN_E;
else
t2 &= ~(PORT_WKOC_E|PORT_WKDISC_E|PORT_WKCONN_E);
@@ -517,7 +517,7 @@ static int ehci_hub_control (
if ((temp & PORT_PE) == 0
|| (temp & PORT_RESET) != 0)
goto error;
- if (hcd->remote_wakeup)
+ if (device_may_wakeup(&hcd->self.root_hub->dev))
temp |= PORT_WAKE_BITS;
writel (temp | PORT_SUSPEND,
&ehci->regs->port_status [wIndex]);
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 13f73a8..ac088bc 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -210,7 +210,16 @@ static int ehci_pci_setup(struct usb_hcd
/* Serial Bus Release Number is at PCI 0x60 offset */
pci_read_config_byte(pdev, 0x60, &ehci->sbrn);
- /* REVISIT: per-port wake capability (PCI 0x62) currently unused */
+ /* Workaround current PCI init glitch: wakeup bits aren't
+ * being set from PCI PM capability.
+ */
+ if (!device_can_wakeup(&pdev->dev)) {
+ u16 port_wake;
+
+ pci_read_config_word(pdev, 0x62, &port_wake);
+ if (port_wake & 0x0001)
+ device_init_wakeup(&pdev->dev, 1);
+ }
retval = ehci_pci_reinit(ehci, pdev);
done:
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