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PCIE: fix PCIe Hotplug so that it works with ExpressCard slots on Dell notebooks (and others?) in conjunction with modparam of pciehp_force=1.

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Fix pciehp_probe() to deal with ExpressCard cards
that were inserted prior to the driver being loaded.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Mark Lord 2007-11-28 15:11:28 -08:00 committed by Greg Kroah-Hartman
parent a6f29a98af
commit 0a3c33d77f
3 changed files with 6 additions and 1 deletions
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1
drivers/pci/hotplug/pciehp.h
View File

@ -161,6 +161,7 @@ extern int pciehp_configure_device(struct slot *p_slot);
extern int pciehp_unconfigure_device(struct slot *p_slot);
extern void pciehp_queue_pushbutton_work(struct work_struct *work);
int pcie_init(struct controller *ctrl, struct pcie_device *dev);
int pciehp_enable_slot(struct slot *p_slot);
static inline struct slot *pciehp_find_slot(struct controller *ctrl, u8 device)
{

5
drivers/pci/hotplug/pciehp_core.c
View File

@ -471,6 +471,11 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
t_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset);
t_slot->hpc_ops->get_adapter_status(t_slot, &value); /* Check if slot is occupied */
if (value) {
rc = pciehp_enable_slot(t_slot);
if (rc) /* -ENODEV: shouldn't happen, but deal with it */
value = 0;
}
if ((POWER_CTRL(ctrl->ctrlcap)) && !value) {
rc = t_slot->hpc_ops->power_off_slot(t_slot); /* Power off slot if not occupied*/
if (rc)

1
drivers/pci/hotplug/pciehp_ctrl.c
View File

@ -37,7 +37,6 @@
#include "pciehp.h"
static void interrupt_event_handler(struct work_struct *work);
static int pciehp_enable_slot(struct slot *p_slot);
static int pciehp_disable_slot(struct slot *p_slot);
static int queue_interrupt_event(struct slot *p_slot, u32 event_type)