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Commit e73cfecd authored by Yinghai Lu's avatar Yinghai Lu Committed by Bjorn Helgaas
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PCI: pciehp: remove unused pciehp_get_max_lnk_width(), pciehp_get_cur_lnk_width() 



Signed-off-by: default avatarYinghai Lu <yinghai@kernel.org>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Cc: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
parent cfaf0251

drivers/pci/hotplug/pciehp.h

+0 −4
Original line number Diff line number Diff line
@@ -149,10 +149,6 @@ int pciehp_get_attention_status(struct slot *slot, u8 *status); 
int pciehp_set_attention_status(struct slot *slot, u8 status);

int pciehp_get_latch_status(struct slot *slot, u8 *status);

int pciehp_get_adapter_status(struct slot *slot, u8 *status);

int pciehp_get_max_link_speed(struct slot *slot, enum pci_bus_speed *speed);

int pciehp_get_max_link_width(struct slot *slot, enum pcie_link_width *val);

int pciehp_get_cur_link_speed(struct slot *slot, enum pci_bus_speed *speed);

int pciehp_get_cur_link_width(struct slot *slot, enum pcie_link_width *val);

int pciehp_query_power_fault(struct slot *slot);

void pciehp_green_led_on(struct slot *slot);

void pciehp_green_led_off(struct slot *slot);

drivers/pci/hotplug/pciehp_hpc.c

+0 −101
Original line number Diff line number Diff line
@@ -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;