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Message-ID: <4716CCB1.9060605@rtr.ca> Date: Wed, 17 Oct 2007 23:02:09 -0400 From: Mark Lord <lkml@....ca> To: kristen.c.accardi@...el.com Cc: Linux Kernel <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, Theodore Ts'o <tytso@....edu>, greg@...ah.com, pcihpd-discuss@...ts.sourceforge.net Subject: [PATCH 3/3] pciehp_resume_reinit_hardware 03_pciehp_resume_reinit_hardware.patch: Make use of the previously split out pcie_init_enable_events() function to reinitialize the hotplug hardware on resume from suspend, but only when pciehp_force==1. Otherwise behaviour is unmodified. Signed-off-by: Mark Lord <mlord@...ox.com> --- --- git12/drivers/pci/hotplug/pciehp_ctrl.c 2007-10-17 19:28:23.000000000 -0400 +++ linux/drivers/pci/hotplug/pciehp_ctrl.c 2007-10-17 19:31:22.000000000 -0400 @@ -37,7 +37,6 @@ #include "pciehp.h" static void interrupt_event_handler(struct work_struct *work); -static int pciehp_disable_slot(struct slot *p_slot); static int queue_interrupt_event(struct slot *p_slot, u32 event_type) { --- git12/drivers/pci/hotplug/pciehp.h 2007-10-17 19:28:23.000000000 -0400 +++ linux/drivers/pci/hotplug/pciehp.h 2007-10-17 19:32:03.000000000 -0400 @@ -162,6 +162,8 @@ 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); +int pciehp_disable_slot(struct slot *p_slot); +int pcie_init_hardware(struct controller *ctrl, struct pcie_device *dev); static inline struct slot *pciehp_find_slot(struct controller *ctrl, u8 device) { --- git12/drivers/pci/hotplug/pciehp_core.c 2007-10-17 19:28:23.000000000 -0400 +++ linux/drivers/pci/hotplug/pciehp_core.c 2007-10-17 19:33:05.000000000 -0400 @@ -510,6 +510,24 @@ static int pciehp_resume (struct pcie_device *dev) { printk("%s ENTRY\n", __FUNCTION__); + if (pciehp_force) { + struct pci_dev *pdev = dev->port; + struct controller *ctrl = pci_get_drvdata(pdev); + struct slot *t_slot; + u8 status; + + /* reinitialize the chipset's event detection logic */ + pcie_init_hardware(ctrl, dev); + + t_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset); + + /* Check if slot is occupied */ + t_slot->hpc_ops->get_adapter_status(t_slot, &status); + if (status) + pciehp_enable_slot(t_slot); + else + pciehp_disable_slot(t_slot); + } return 0; } #endif - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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