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authorBjorn Helgaas <bhelgaas@google.com>2015-07-02 00:17:49 +0200
committerBjorn Helgaas <bhelgaas@google.com>2015-08-10 21:24:09 +0200
commit2db0f71f56795f6b04d386b15c3b32b570558ebd (patch)
treef8e3ec10dfe61528c832dd43856180a21c079b73 /drivers/pci/hotplug/pciehp_hpc.c
parentPCI: pciehp: Remove unused interrupt events (diff)
downloadlinux-2db0f71f56795f6b04d386b15c3b32b570558ebd.tar.xz
linux-2db0f71f56795f6b04d386b15c3b32b570558ebd.zip
PCI: pciehp: Remove ignored MRL sensor interrupt events
We queued interrupt events for the MRL being opened or closed, but the code in interrupt_event_handler() that handles these events ignored them. Stop enabling MRL interrupts and remove the ignored events. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/hotplug/pciehp_hpc.c')
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c17
1 files changed, 3 insertions, 14 deletions
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 8f3d3cff3581..5c24e938042f 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -543,7 +543,7 @@ static irqreturn_t pcie_isr(int irq, void *dev_id)
struct pci_dev *dev;
struct slot *slot = ctrl->slot;
u16 detected, intr_loc;
- u8 open, present;
+ u8 present;
bool link;
/*
@@ -561,7 +561,7 @@ static irqreturn_t pcie_isr(int irq, void *dev_id)
}
detected &= (PCI_EXP_SLTSTA_ABP | PCI_EXP_SLTSTA_PFD |
- PCI_EXP_SLTSTA_MRLSC | PCI_EXP_SLTSTA_PDC |
+ PCI_EXP_SLTSTA_PDC |
PCI_EXP_SLTSTA_CC | PCI_EXP_SLTSTA_DLLSC);
detected &= ~intr_loc;
intr_loc |= detected;
@@ -594,15 +594,6 @@ static irqreturn_t pcie_isr(int irq, void *dev_id)
if (!(intr_loc & ~PCI_EXP_SLTSTA_CC))
return IRQ_HANDLED;
- /* Check MRL Sensor Changed */
- if (intr_loc & PCI_EXP_SLTSTA_MRLSC) {
- pciehp_get_latch_status(slot, &open);
- ctrl_info(ctrl, "Latch %s on Slot(%s)\n",
- open ? "open" : "close", slot_name(slot));
- pciehp_queue_interrupt_event(slot, open ? INT_SWITCH_OPEN :
- INT_SWITCH_CLOSE);
- }
-
/* Check Attention Button Pressed */
if (intr_loc & PCI_EXP_SLTSTA_ABP) {
ctrl_info(ctrl, "Button pressed on Slot(%s)\n",
@@ -662,13 +653,11 @@ void pcie_enable_notification(struct controller *ctrl)
cmd |= PCI_EXP_SLTCTL_ABPE;
else
cmd |= PCI_EXP_SLTCTL_PDCE;
- if (MRL_SENS(ctrl))
- cmd |= PCI_EXP_SLTCTL_MRLSCE;
if (!pciehp_poll_mode)
cmd |= PCI_EXP_SLTCTL_HPIE | PCI_EXP_SLTCTL_CCIE;
mask = (PCI_EXP_SLTCTL_PDCE | PCI_EXP_SLTCTL_ABPE |
- PCI_EXP_SLTCTL_MRLSCE | PCI_EXP_SLTCTL_PFDE |
+ PCI_EXP_SLTCTL_PFDE |
PCI_EXP_SLTCTL_HPIE | PCI_EXP_SLTCTL_CCIE |
PCI_EXP_SLTCTL_DLLSCE);