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PCI: qcom: Use default config space read function 

Move the device class fudge to a proper fixup function, and remove
qcom_pcie_rd_own_conf() which has become useless.

dw_pcie_setup_rc() already did the right thing, but it's broken
on older qcom chips, such as 8064.

Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com>
This commit is contained in:
Marc Gonzalez 2019-03-25 16:42:55 +01:00 committed by Bjorn Helgaas
parent 9e98c678c2
commit 322f034366
1 changed files with 6 additions and 17 deletions
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23
drivers/pci/controller/dwc/pcie-qcom.c
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@ -1129,25 +1129,8 @@ static int qcom_pcie_host_init(struct pcie_port *pp)
return ret;
}
static int qcom_pcie_rd_own_conf(struct pcie_port *pp, int where, int size,
u32 *val)
{
struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
/* the device class is not reported correctly from the register */
if (where == PCI_CLASS_REVISION && size == 4) {
*val = readl(pci->dbi_base + PCI_CLASS_REVISION);
*val &= 0xff; /* keep revision id */
*val |= PCI_CLASS_BRIDGE_PCI << 16;
return PCIBIOS_SUCCESSFUL;
}
return dw_pcie_read(pci->dbi_base + where, size, val);
}
static const struct dw_pcie_host_ops qcom_pcie_dw_ops = {
.host_init = qcom_pcie_host_init,
.rd_own_conf = qcom_pcie_rd_own_conf,
};
/* Qcom IP rev.: 2.1.0 Synopsys IP rev.: 4.01a */
@ -1309,6 +1292,12 @@ static const struct of_device_id qcom_pcie_match[] = {
{ }
};
static void qcom_fixup_class(struct pci_dev *dev)
{
dev->class = PCI_CLASS_BRIDGE_PCI << 8;
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, PCI_ANY_ID, qcom_fixup_class);
static struct platform_driver qcom_pcie_driver = {
.probe = qcom_pcie_probe,
.driver = {