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PCI: Add MCFG quirks for Qualcomm QDF2432 host controller

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The Qualcomm Technologies QDF2432 SoC does not support accesses smaller
than 32 bits to the PCI configuration space.  Register the appropriate
quirk.

[bhelgaas: add QCOM_ECAM32 macro, ifdef for ACPI and PCI_QUIRKS]
Signed-off-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Christopher Covington 2016-11-02 11:11:27 -05:00 • committed by Bjorn Helgaas
parent 169de969c0
commit 2ca5b8ddc6
3 changed files with 27 additions and 0 deletions
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4
include/linux/pci-ecam.h
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@ -59,6 +59,10 @@ void __iomem *pci_ecam_map_bus(struct pci_bus *bus, unsigned int devfn,
/* default ECAM ops */
extern struct pci_ecam_ops pci_generic_ecam_ops;
#if defined(CONFIG_ACPI) && defined(CONFIG_PCI_QUIRKS)
extern struct pci_ecam_ops pci_32b_ops; /* 32-bit accesses only */
#endif
#ifdef CONFIG_PCI_HOST_GENERIC
/* for DT-based PCI controllers that support ECAM */
int pci_host_common_probe(struct platform_device *pdev,