[PATCH v8 07/61] PCI: Kill wrong quirk about M7101

From: Yinghai Lu
Date: Tue Oct 27 2015 - 17:15:31 EST

Meelis reported that qla2000 driver does not get loaded on one sparc system.

schizo f00732d0: PCI host bridge to bus 0001:00
pci_bus 0001:00: root bus resource [io 0x7fe01000000-0x7fe01ffffff] (bus address [0x0000-0xffffff])
pci 0001:00:06.0: quirk: [io 0x7fe01000800-0x7fe0100083f] claimed by ali7101 ACPI
pci 0001:00:06.0: quirk: [io 0x7fe01000600-0x7fe0100061f] claimed by ali7101 SMB
pci 0001:00:07.0: can't claim BAR 0 [io 0x7fe01000000-0x7fe0100ffff]: address conflict with 0001:00:06.0 [io 0x7fe01000600-0x7fe0100061f]

So the quirk for M7101 claim the io range early.

According to spec with M7101 in M1543 page 103/104,
0xe0, and 0xe2 do not include address info for acpi/smb.

Kill wrong quirk about them.

Link: http://kodu.ut.ee/~mroos/dm/dm.v240
Link: http://kodu.ut.ee/~mroos/dm/dm.sb100
Reported-by: Meelis Roos <mroos@xxxxxxxx>
Cc: Meelis Roos <mroos@xxxxxxxx>
Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
Tested-by: Khalid Aziz <khalid.aziz@xxxxxxxxxx>
drivers/pci/quirks.c | 18 ------------------
1 file changed, 18 deletions(-)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index b03373f..55bb661 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -433,24 +433,6 @@ static void quirk_amd_nl_class(struct pci_dev *pdev)

- * Let's make the southbridge information explicit instead
- * of having to worry about people probing the ACPI areas,
- * for example.. (Yes, it happens, and if you read the wrong
- * ACPI register it will put the machine to sleep with no
- * way of waking it up again. Bummer).
- *
- * ALI M7101: Two IO regions pointed to by words at
- * 0xE0 (64 bytes of ACPI registers)
- * 0xE2 (32 bytes of SMB registers)
- */
-static void quirk_ali7101_acpi(struct pci_dev *dev)
- quirk_io_region(dev, 0xE0, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
- quirk_io_region(dev, 0xE2, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
u32 devres;

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