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Subject[PATCH v2] acpi: pci: QDF2432 32 bit config space accessors
Date
Qualcomm Technologies QDF2432 SoCs require 32 bit accessors to be used
for the PCI configuration space. Register the appropriate quirk.

Signed-off-by: Christopher Covington <cov@codeaurora.org>
---
Dependent on Tomasz Nowicki's ACPI support for PCI:
http://lists.infradead.org/pipermail/linux-arm-kernel/2016-February/thread.html#405148

v1 -> v2: Rebase and use full product name

drivers/acpi/mcfg.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)

diff --git a/drivers/acpi/mcfg.c b/drivers/acpi/mcfg.c
index 4663f70..18e792b 100644
--- a/drivers/acpi/mcfg.c
+++ b/drivers/acpi/mcfg.c
@@ -78,6 +78,29 @@ static struct pci_ops default_pci_mcfg_ops = {
.write = pci_generic_config_write,
};

+static const struct dmi_system_id qcom_qdf2432[] = {
+ {
+ .ident = "Qualcomm Technologies QDF2432",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Qualcomm"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "QDF2432"),
+ },
+ },
+ { }
+};
+
+static struct pci_ops qcom_qdf2432_pci_mcfg_ops = {
+ .map_bus = pci_mcfg_dev_base,
+ .read = pci_generic_config_read32,
+ .write = pci_generic_config_write32,
+};
+
+DECLARE_ACPI_MCFG_FIXUP(qcom_qdf2432,
+ NULL,
+ &qcom_qdf2432_pci_mcfg_ops,
+ PCI_MCFG_DOMAIN_ANY,
+ PCI_MCFG_BUS_ANY);
+
struct pci_ops *pci_mcfg_get_ops(struct acpi_pci_root *root)
{
struct pci_ops *pci_mcfg_ops_quirk;
--
Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
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