From fe150aa934683800e6cad74f15cf44c6aa27aa71 Mon Sep 17 00:00:00 2001 From: Inaky Perez-Gonzalez Date: Fri, 8 May 2009 15:51:44 -0700 Subject: [PATCH] --- yaml --- r: 150552 b: refs/heads/master c: 2618ab774ea015089c6eb84787f7ede6f2a2cbd0 h: refs/heads/master v: v3 --- [refs] | 2 +- trunk/drivers/net/wimax/i2400m/usb.c | 35 ++++++++++++++++++++++++---- 2 files changed, 31 insertions(+), 6 deletions(-) diff --git a/[refs] b/[refs] index bf653e7e0949..64d174838ada 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 7f0333eb2f98bbfece4fbfe21076d0a3e49f0bb0 +refs/heads/master: 2618ab774ea015089c6eb84787f7ede6f2a2cbd0 diff --git a/trunk/drivers/net/wimax/i2400m/usb.c b/trunk/drivers/net/wimax/i2400m/usb.c index ca4151a9e222..17851321b7fd 100644 --- a/trunk/drivers/net/wimax/i2400m/usb.c +++ b/trunk/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);