This patch below seems to fix point 1 on my system,
causing pciehp to become aware of already-inserted cards on module load.
It's not perfect, but I believe it does show the kind of functionality
that's missing from the driver.
The resume() function will need something similar, to poll the slots
on resume and call pciehp_enable_slot() or pciehp_disable_slot()
as appropriate.
I suspect this is broken even on machines that do have ACPI BIOS
support.
Cheers
Not for kernel inclusion (yet), but..
Signed-off-by: Mark Lord <mlord@pobox.com>
--- old/drivers/pci/hotplug/pciehp_core.c 2007-10-12 12:43:44.000000000 -0400
+++ linux/drivers/pci/hotplug/pciehp_core.c 2007-10-16 15:22:46.000000000 -0400
@@ -475,6 +475,9 @@
rc = t_slot->hpc_ops->power_off_slot(t_slot); /* Power off slot if not occupied*/
if (rc)
goto err_out_free_ctrl_slot;
+ } else {
+ extern int pciehp_enable_slot(struct slot *p_slot);
+ pciehp_enable_slot(t_slot);
}
return 0;
--- old/drivers/pci/hotplug/pciehp_ctrl.c 2007-10-12 12:43:44.000000000 -0400
+++ linux/drivers/pci/hotplug/pciehp_ctrl.c 2007-10-16 15:22:44.000000000 -0400
@@ -37,7 +37,7 @@
#include "pciehp.h"
static void interrupt_event_handler(struct work_struct *work);
-static int pciehp_enable_slot(struct slot *p_slot);
+ 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)
-