diff options
| author | David Brownell <david-b@pacbell.net> | 2006-08-15 10:11:06 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-09-26 08:08:37 +0400 |
| commit | 185849991d592497e43bcd264c6152af1261ffe2 (patch) | |
| tree | 856077e37e40bbda2af95fe64aaa92db626f30de /drivers/usb/host/sl811-hcd.c | |
| parent | c78a7c2dd913e68ce853d43edaba14eac91b2fd1 (diff) | |
| download | linux-185849991d592497e43bcd264c6152af1261ffe2.tar.xz | |
PM: USB HCDs use PM_EVENT_PRETHAW
This teaches several USB host controller drivers to treat PRETHAW as a chip
reset since the controller, and all devices connected to it, are no longer in
states compatible with how the snapshotted suspend() left them.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/sl811-hcd.c')
| -rw-r--r-- | drivers/usb/host/sl811-hcd.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index fa34092bbcde..9de115d9db27 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -1783,10 +1783,15 @@ sl811h_suspend(struct platform_device *dev, pm_message_t state) struct sl811 *sl811 = hcd_to_sl811(hcd); int retval = 0; - if (state.event == PM_EVENT_FREEZE) + switch (state.event) { + case PM_EVENT_FREEZE: retval = sl811h_bus_suspend(hcd); - else if (state.event == PM_EVENT_SUSPEND) + break; + case PM_EVENT_SUSPEND: + case PM_EVENT_PRETHAW: /* explicitly discard hw state */ port_power(sl811, 0); + break; + } if (retval == 0) dev->dev.power.power_state = state; return retval; |