linux-kernel - [PATCH v2 2/5] PCI: Add quirk for PLDA's XpressRICH3 host bridge class.

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Message-Id: <1444409849-5685-3-git-send-email-Liviu.Dudau@arm.com>
Date:	Fri,  9 Oct 2015 17:57:26 +0100
From:	Liviu Dudau <Liviu.Dudau@....com>
To:	Will Deacon <will.deacon@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Mark Rutland <mark.rutland@....com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Robin Murphy <robin.murphy@....com>,
	Rob Herring <robh+dt@...nel.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Arnd Bergmann <arnd@...db.de>, Jon Medhurst <tixy@...aro.org>
Cc:	linux-pci <linux-pci@...r.kernel.org>,
	device-tree <devicetree@...r.kernel.org>,
	LAKML <linux-arm-kernel@...ts.infradead.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 2/5] PCI: Add quirk for PLDA's XpressRICH3 host bridge class.

The XpressRICH3 host bridge at power up has an unassigned class on
some of ARM Ltd boards, add a quirk to correct that.

Signed-off-by: Liviu Dudau <Liviu.Dudau@....com>
---
 drivers/pci/quirks.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index b03373f..ae24bb4 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4149,3 +4149,13 @@ static void quirk_intel_qat_vf_cap(struct pci_dev *pdev)
 	}
 }
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x443, quirk_intel_qat_vf_cap);
+
+/*
+ * The PLDA's XpressRICH3 doesn't describe itself as a bridge. This is required
+ * for correct/normal enumeration.
+ */
+static void xr3pci_quirk_class(struct pci_dev *pdev)
+{
+	pdev->class = PCI_CLASS_BRIDGE_PCI << 8;
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLDA, PCI_DEVICE_ID_XR3PCI, xr3pci_quirk_class);
-- 
2.6.0

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