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authorKishon Vijay Abraham I <kishon@ti.com>2020-07-22 16:33:08 +0530
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2020-07-27 15:46:16 +0100
commitc4c10c0125a705c606cb0cc85e18f13b490d026f (patch)
tree409b8838f67b6233f3b0a91ac6a3906fcdda1f76 /drivers/pci/controller/cadence
parentPCI: cadence: Add support to start link and verify link status (diff)
downloadwireguard-linux-c4c10c0125a705c606cb0cc85e18f13b490d026f.tar.xz
wireguard-linux-c4c10c0125a705c606cb0cc85e18f13b490d026f.zip
PCI: cadence: Allow pci_host_bridge to have custom pci_ops
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. Link: https://lore.kernel.org/r/20200722110317.4744-7-kishon@ti.com Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Diffstat (limited to 'drivers/pci/controller/cadence')
-rw-r--r--drivers/pci/controller/cadence/pcie-cadence-host.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/pci/controller/cadence/pcie-cadence-host.c b/drivers/pci/controller/cadence/pcie-cadence-host.c
index 4e650c7a0032..f889914563fe 100644
--- a/drivers/pci/controller/cadence/pcie-cadence-host.c
+++ b/drivers/pci/controller/cadence/pcie-cadence-host.c
@@ -506,7 +506,8 @@ 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;