aboutsummaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2009-05-25 22:56:11 -0700
committerDavid S. Miller <davem@davemloft.net>2009-05-25 22:56:11 -0700
commit7682455ec36fce70bdbad9f739de05060dedfa27 (patch)
treef2fe8bf7fad1b61b60e3edc57f4fc62e56bb8ef3 /drivers
parentf11a377b3f4e897d11f0e8d1fc688667e2f19708 (diff)
parente069c0cf7c169ae5a8bfdc8d083a5d66fbef73d8 (diff)
downloadmrst-s0i3-test-7682455ec36fce70bdbad9f739de05060dedfa27.tar.gz
mrst-s0i3-test-7682455ec36fce70bdbad9f739de05060dedfa27.tar.xz
mrst-s0i3-test-7682455ec36fce70bdbad9f739de05060dedfa27.zip
Merge branch 'linux-2.6.30.y' of git://git.kernel.org/pub/scm/linux/kernel/git/inaky/wimax
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wimax/i2400m/usb.c35
1 files changed, 30 insertions, 5 deletions
diff --git a/drivers/net/wimax/i2400m/usb.c b/drivers/net/wimax/i2400m/usb.c
index ca4151a9e22..17851321b7f 100644
--- a/drivers/net/wimax/i2400m/usb.c
+++ b/drivers/net/wimax/i2400m/usb.c
@@ -505,27 +505,52 @@ int i2400mu_suspend(struct usb_interface *iface, pm_message_t pm_msg)
#ifdef CONFIG_PM
struct usb_device *usb_dev = i2400mu->usb_dev;
#endif
+ unsigned is_autosuspend = 0;
struct i2400m *i2400m = &i2400mu->i2400m;
+#ifdef CONFIG_PM
+ if (usb_dev->auto_pm > 0)
+ is_autosuspend = 1;
+#endif
+
d_fnstart(3, dev, "(iface %p pm_msg %u)\n", iface, pm_msg.event);
if (i2400m->updown == 0)
goto no_firmware;
- d_printf(1, dev, "fw up, requesting standby\n");
+ if (i2400m->state == I2400M_SS_DATA_PATH_CONNECTED && is_autosuspend) {
+ /* ugh -- the device is connected and this suspend
+ * request is an autosuspend one (not a system standby
+ * / hibernate).
+ *
+ * The only way the device can go to standby is if the
+ * link with the base station is in IDLE mode; that
+ * were the case, we'd be in status
+ * I2400M_SS_CONNECTED_IDLE. But we are not.
+ *
+ * If we *tell* him to go power save now, it'll reset
+ * as a precautionary measure, so if this is an
+ * autosuspend thing, say no and it'll come back
+ * later, when the link is IDLE
+ */
+ result = -EBADF;
+ d_printf(1, dev, "fw up, link up, not-idle, autosuspend: "
+ "not entering powersave\n");
+ goto error_not_now;
+ }
+ d_printf(1, dev, "fw up: entering powersave\n");
atomic_dec(&i2400mu->do_autopm);
result = i2400m_cmd_enter_powersave(i2400m);
atomic_inc(&i2400mu->do_autopm);
-#ifdef CONFIG_PM
- if (result < 0 && usb_dev->auto_pm == 0) {
+ if (result < 0 && !is_autosuspend) {
/* System suspend, can't fail */
dev_err(dev, "failed to suspend, will reset on resume\n");
result = 0;
}
-#endif
if (result < 0)
goto error_enter_powersave;
i2400mu_notification_release(i2400mu);
- d_printf(1, dev, "fw up, got standby\n");
+ d_printf(1, dev, "powersave requested\n");
error_enter_powersave:
+error_not_now:
no_firmware:
d_fnend(3, dev, "(iface %p pm_msg %u) = %d\n",
iface, pm_msg.event, result);