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path: root/drivers/pci/hotplug/pciehp_hpc.c
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Diffstat (limited to 'drivers/pci/hotplug/pciehp_hpc.c')
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c101
1 files changed, 0 insertions, 101 deletions
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index a960faec102..302451e8289 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -705,107 +705,6 @@ static irqreturn_t pcie_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-int pciehp_get_max_lnk_width(struct slot *slot,
- enum pcie_link_width *value)
-{
- struct controller *ctrl = slot->ctrl;
- enum pcie_link_width lnk_wdth;
- u32 lnk_cap;
- int retval = 0;
-
- retval = pciehp_readl(ctrl, PCI_EXP_LNKCAP, &lnk_cap);
- if (retval) {
- ctrl_err(ctrl, "%s: Cannot read LNKCAP register\n", __func__);
- return retval;
- }
-
- switch ((lnk_cap & PCI_EXP_LNKSTA_NLW) >> 4){
- case 0:
- lnk_wdth = PCIE_LNK_WIDTH_RESRV;
- break;
- case 1:
- lnk_wdth = PCIE_LNK_X1;
- break;
- case 2:
- lnk_wdth = PCIE_LNK_X2;
- break;
- case 4:
- lnk_wdth = PCIE_LNK_X4;
- break;
- case 8:
- lnk_wdth = PCIE_LNK_X8;
- break;
- case 12:
- lnk_wdth = PCIE_LNK_X12;
- break;
- case 16:
- lnk_wdth = PCIE_LNK_X16;
- break;
- case 32:
- lnk_wdth = PCIE_LNK_X32;
- break;
- default:
- lnk_wdth = PCIE_LNK_WIDTH_UNKNOWN;
- break;
- }
-
- *value = lnk_wdth;
- ctrl_dbg(ctrl, "Max link width = %d\n", lnk_wdth);
-
- return retval;
-}
-
-int pciehp_get_cur_lnk_width(struct slot *slot,
- enum pcie_link_width *value)
-{
- struct controller *ctrl = slot->ctrl;
- enum pcie_link_width lnk_wdth = PCIE_LNK_WIDTH_UNKNOWN;
- int retval = 0;
- u16 lnk_status;
-
- retval = pciehp_readw(ctrl, PCI_EXP_LNKSTA, &lnk_status);
- if (retval) {
- ctrl_err(ctrl, "%s: Cannot read LNKSTATUS register\n",
- __func__);
- return retval;
- }
-
- switch ((lnk_status & PCI_EXP_LNKSTA_NLW) >> 4){
- case 0:
- lnk_wdth = PCIE_LNK_WIDTH_RESRV;
- break;
- case 1:
- lnk_wdth = PCIE_LNK_X1;
- break;
- case 2:
- lnk_wdth = PCIE_LNK_X2;
- break;
- case 4:
- lnk_wdth = PCIE_LNK_X4;
- break;
- case 8:
- lnk_wdth = PCIE_LNK_X8;
- break;
- case 12:
- lnk_wdth = PCIE_LNK_X12;
- break;
- case 16:
- lnk_wdth = PCIE_LNK_X16;
- break;
- case 32:
- lnk_wdth = PCIE_LNK_X32;
- break;
- default:
- lnk_wdth = PCIE_LNK_WIDTH_UNKNOWN;
- break;
- }
-
- *value = lnk_wdth;
- ctrl_dbg(ctrl, "Current link width = %d\n", lnk_wdth);
-
- return retval;
-}
-
int pcie_enable_notification(struct controller *ctrl)
{
u16 cmd, mask;