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>

1 files changed, 6 insertions, 17 deletions

diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index a7f703556790..0ed235d560e3 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -1129,25 +1129,8 @@ err_deinit:
         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 = {