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Commit a83f985a authored by Chris Blake's avatar Chris Blake Committed by Sasha Levin
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PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset 



[ Upstream commit 9ac0108c2bac3f1d0255f64fb89fc27e71131b24 ]

Similar to the AR93xx series, the AR94xx and the Qualcomm QCA988x also have
the same quirk for the Bus Reset.

Fixes: c3e59ee4e766 ("PCI: Mark Atheros AR93xx to avoid bus reset")
Signed-off-by: default avatarChris Blake <chrisrblake93@gmail.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org  # v3.14+
Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
parent 4ed53b9d

drivers/pci/quirks.c

+6 −4
Original line number Diff line number Diff line
@@ -3060,13 +3060,15 @@ static void quirk_no_bus_reset(struct pci_dev *dev) 
}



/*

 * Atheros AR93xx chips do not behave after a bus reset.  The device will

 * throw a Link Down error on AER-capable systems and regardless of AER,

 * config space of the device is never accessible again and typically

 * causes the system to hang or reset when access is attempted.

 * Some Atheros AR9xxx and QCA988x chips do not behave after a bus reset.

 * The device will throw a Link Down error on AER-capable systems and

 * regardless of AER, config space of the device is never accessible again

 * and typically causes the system to hang or reset when access is attempted.

 * http://www.spinics.net/lists/linux-pci/msg34797.html

 */

DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset);

DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset);

DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset);



#ifdef CONFIG_ACPI

/*