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[PATCH] yenta: no CardBus if IRQ fails 

If probing for the correct interrupt fails on yenta bridges, the driver falls
back to polling for interrupt actions.  However, CardBus cards cannot be used
then.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Russell King 2005-07-07 17:59:07 -07:00 committed by Linus Torvalds
parent 4230dfc9c3
commit 5bc6b68a10
2 changed files with 18 additions and 7 deletions
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15
drivers/pcmcia/cs.c
View File

@ -215,6 +215,13 @@ int pcmcia_register_socket(struct pcmcia_socket *socket)
list_add_tail(&socket->socket_list, &pcmcia_socket_list);
up_write(&pcmcia_socket_list_rwsem);
#ifndef CONFIG_CARDBUS
/*
* If we do not support Cardbus, ensure that
* the Cardbus socket capability is disabled.
*/
socket->features &= ~SS_CAP_CARDBUS;
#endif
/* set proper values in socket->dev */
socket->dev.class_data = socket;
@ -448,11 +455,11 @@ static int socket_setup(struct pcmcia_socket *skt, int initial_delay)
}
if (status & SS_CARDBUS) {
if (!(skt->features & SS_CAP_CARDBUS)) {
cs_err(skt, "cardbus cards are not supported.\n");
return CS_BAD_TYPE;
}
skt->state |= SOCKET_CARDBUS;
#ifndef CONFIG_CARDBUS
cs_err(skt, "cardbus cards are not supported.\n");
return CS_BAD_TYPE;
#endif
}
/*

10
drivers/pcmcia/yenta_socket.c
View File

@ -868,14 +868,11 @@ static int yenta_probe_cb_irq(struct yenta_socket *socket)
*/
static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_irq_mask)
{
socket->socket.features |= SS_CAP_PAGE_REGS | SS_CAP_PCCARD | SS_CAP_CARDBUS;
socket->socket.map_size = 0x1000;
socket->socket.pci_irq = socket->cb_irq;
if (isa_probe)
socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask);
else
socket->socket.irq_mask = 0;
socket->socket.cb_dev = socket->dev;
printk(KERN_INFO "Yenta: ISA IRQ mask 0x%04x, PCI irq %d\n",
socket->socket.irq_mask, socket->cb_irq);
@ -941,6 +938,9 @@ static int __devinit yenta_probe (struct pci_dev *dev, const struct pci_device_i
socket->socket.dev.dev = &dev->dev;
socket->socket.driver_data = socket;
socket->socket.owner = THIS_MODULE;
socket->socket.features = SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
socket->socket.map_size = 0x1000;
socket->socket.cb_dev = dev;
/* prepare struct yenta_socket */
socket->dev = dev;
@ -1011,6 +1011,10 @@ static int __devinit yenta_probe (struct pci_dev *dev, const struct pci_device_i
socket->poll_timer.data = (unsigned long)socket;
socket->poll_timer.expires = jiffies + HZ;
add_timer(&socket->poll_timer);
printk(KERN_INFO "Yenta: no PCI IRQ, CardBus support disabled for this socket.\n"
KERN_INFO "Yenta: check your BIOS CardBus, BIOS IRQ or ACPI settings.\n");
} else {
socket->socket.features |= SS_CAP_CARDBUS;
}
/* Figure out what the dang thing can do for the PCMCIA layer... */