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Commit 6eb0ac03 authored by Michael Ellerman's avatar Michael Ellerman Committed by Benjamin Herrenschmidt
Browse files

powerpc/maple: Add a quirk to disable MSI for IPR on Bimini 



Something in the HW or FW setup is busted and MSIs aren't working with
IPR on Bimini, so until we figure out exaxtly what's up, we quirk them
out

Signed-off-by: default avatarMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 5805977e

arch/powerpc/platforms/maple/pci.c

+14 −0
Original line number Original line Diff line number Diff line
@@ -592,3 +592,17 @@ int maple_pci_get_legacy_ide_irq(struct pci_dev *pdev, int channel) 
	}

	}

	return irq;

	return irq;

}

}



static void __devinit quirk_ipr_msi(struct pci_dev *dev)

{

	/* Something prevents MSIs from the IPR from working on Bimini,

	 * and the driver has no smarts to recover. So disable MSI

	 * on it for now. */



	if (machine_is(maple)) {

		dev->no_msi = 1;

		dev_info(&dev->dev, "Quirk disabled MSI\n");

	}

}

DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,

			quirk_ipr_msi);