diff options
author | Dominik Brodowski <linux@dominikbrodowski.net> | 2005-06-27 23:28:17 (GMT) |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-28 01:03:08 (GMT) |
commit | e2f0b5344161dabfab102ac0a54f330f61477972 (patch) | |
tree | 74ecdbd6bd7e875c56f78a5a1d7822ade2159794 /drivers/pcmcia/ds.c | |
parent | e94e15f70559962f60915a09d44658b73a453fe2 (diff) | |
download | linux-fsl-qoriq-e2f0b5344161dabfab102ac0a54f330f61477972.tar.xz |
[PATCH] pcmcia: rescan bus always upon echoing into setup_done
Always rescan the devices upon echo'ing something to
available_resources_setup_done. This is needed for proper "coldplug" support.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/pcmcia/ds.c')
-rw-r--r-- | drivers/pcmcia/ds.c | 38 |
1 files changed, 35 insertions, 3 deletions
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index 0de0f23..bde9b05 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -717,9 +717,42 @@ static inline void pcmcia_add_pseudo_device(struct pcmcia_bus_socket *s) return; } -static void pcmcia_bus_rescan(void) +static int pcmcia_requery(struct device *dev, void * _data) { + struct pcmcia_device *p_dev = to_pcmcia_dev(dev); + if (!p_dev->dev.driver) + pcmcia_device_query(p_dev); + + return 0; +} + +static void pcmcia_bus_rescan(struct pcmcia_socket *skt) +{ + int no_devices=0; + unsigned long flags; + /* must be called with skt_sem held */ + spin_lock_irqsave(&pcmcia_dev_list_lock, flags); + if (list_empty(&skt->pcmcia->devices_list)) + no_devices=1; + spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); + + /* if no devices were added for this socket yet because of + * missing resource information or other trouble, we need to + * do this now. */ + if (no_devices) { + int ret = pcmcia_card_add(skt); + if (ret) + return; + } + + /* some device information might have changed because of a CIS + * update or because we can finally read it correctly... so + * determine it again, overwriting old values if necessary. */ + bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); + + /* we re-scan all devices, not just the ones connected to this + * socket. This does not matter, though. */ bus_rescan_devices(&pcmcia_bus_type); } @@ -1861,8 +1894,7 @@ static int __devinit pcmcia_bus_add_socket(struct class_device *class_dev) /* Set up hotline to Card Services */ s->callback.owner = THIS_MODULE; s->callback.event = &ds_event; - s->callback.resources_done = &pcmcia_card_add; - s->callback.replace_cis = &pcmcia_bus_rescan; + s->callback.requery = &pcmcia_bus_rescan; socket->pcmcia = s; ret = pccard_register_pcmcia(socket, &s->callback); |