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[v8,06/15] PCI: cadence: Allow pci_host_bridge to have custom pci_ops

Message ID 20200722110317.4744-7-kishon@ti.com (mailing list archive)
State New, archived
Headers show
Series Add PCIe support to TI's J721E SoC | expand

Commit Message

Kishon Vijay Abraham I July 22, 2020, 11:03 a.m. UTC
Certain platforms like TI's J721E allows only 32-bit configuration
space access. In such cases pci_generic_config_read and
pci_generic_config_write cannot be used. Add support in Cadence core
to let pci_host_bridge have custom pci_ops.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
 drivers/pci/controller/cadence/pcie-cadence-host.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/drivers/pci/controller/cadence/pcie-cadence-host.c b/drivers/pci/controller/cadence/pcie-cadence-host.c
index de02fadc4809..a8303258874c 100644
--- a/drivers/pci/controller/cadence/pcie-cadence-host.c
+++ b/drivers/pci/controller/cadence/pcie-cadence-host.c
@@ -505,7 +505,8 @@  int cdns_pcie_host_setup(struct cdns_pcie_rc *rc)
 	list_splice_init(&resources, &bridge->windows);
 	bridge->dev.parent = dev;
 	bridge->busnr = pcie->bus;
-	bridge->ops = &cdns_pcie_host_ops;
+	if (!bridge->ops)
+		bridge->ops = &cdns_pcie_host_ops;
 	bridge->map_irq = of_irq_parse_and_map_pci;
 	bridge->swizzle_irq = pci_common_swizzle;