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Commit 2f2ed41c authored by Bjorn Helgaas's avatar Bjorn Helgaas
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PCI: pciehp: Simplify "Power Fault Detected" checking/clearing 



It's simpler to test the PCI_EXP_SLTSTA_PFD bit directly and to write the
constant back to PCI_EXP_SLTSTA.

No functional change.

Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent afe2478f

drivers/pci/hotplug/pciehp_hpc.c

+3 −3
Original line number Diff line number Diff line
@@ -501,9 +501,9 @@ int pciehp_power_on_slot(struct slot * slot) 


	/* Clear sticky power-fault bit from previous power failures */

	pcie_capability_read_word(pdev, PCI_EXP_SLTSTA, &slot_status);

	slot_status &= PCI_EXP_SLTSTA_PFD;

	if (slot_status)

		pcie_capability_write_word(pdev, PCI_EXP_SLTSTA, slot_status);

	if (slot_status & PCI_EXP_SLTSTA_PFD)

		pcie_capability_write_word(pdev, PCI_EXP_SLTSTA,

					   PCI_EXP_SLTSTA_PFD);

	ctrl->power_fault_detected = 0;



	slot_cmd = POWER_ON;