diff options
| author | Siddharth Vadapalli <s-vadapalli@ti.com> | 2025-04-17 15:44:07 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2025-06-03 00:02:37 +0300 |
| commit | 3a4b05c9bae485d230560278a659e0830f96e28f (patch) | |
| tree | 1ce60bd5bfce1eac443fc83241ec9aa90645fb65 /drivers/pci | |
| parent | 47f25da6c5ea55494f4de5ca1ecf6c456b4b3e2a (diff) | |
| download | linux-3a4b05c9bae485d230560278a659e0830f96e28f.tar.xz | |
PCI: cadence-ep: Introduce cdns_pcie_ep_disable() helper for cleanup
Introduce the helper function cdns_pcie_ep_disable() which will undo the
configuration performed by cdns_pcie_ep_setup(). Also, export it for use
by the existing callers of cdns_pcie_ep_setup(), thereby allowing them
to cleanup on their exit path.
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://patch.msgid.link/20250417124408.2752248-4-s-vadapalli@ti.com
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/cadence/pcie-cadence-ep.c | 11 | ||||
| -rw-r--r-- | drivers/pci/controller/cadence/pcie-cadence.h | 5 |
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/pci/controller/cadence/pcie-cadence-ep.c b/drivers/pci/controller/cadence/pcie-cadence-ep.c index 387c0c49333b..26534b6f3a87 100644 --- a/drivers/pci/controller/cadence/pcie-cadence-ep.c +++ b/drivers/pci/controller/cadence/pcie-cadence-ep.c @@ -646,6 +646,17 @@ static const struct pci_epc_ops cdns_pcie_epc_ops = { .get_features = cdns_pcie_ep_get_features, }; +void cdns_pcie_ep_disable(struct cdns_pcie_ep *ep) +{ + struct device *dev = ep->pcie.dev; + struct pci_epc *epc = to_pci_epc(dev); + + pci_epc_deinit_notify(epc); + pci_epc_mem_free_addr(epc, ep->irq_phys_addr, ep->irq_cpu_addr, + SZ_128K); + pci_epc_mem_exit(epc); +} +EXPORT_SYMBOL_GPL(cdns_pcie_ep_disable); int cdns_pcie_ep_setup(struct cdns_pcie_ep *ep) { diff --git a/drivers/pci/controller/cadence/pcie-cadence.h b/drivers/pci/controller/cadence/pcie-cadence.h index 40ff5aadc94f..a149845d341a 100644 --- a/drivers/pci/controller/cadence/pcie-cadence.h +++ b/drivers/pci/controller/cadence/pcie-cadence.h @@ -544,11 +544,16 @@ static inline void __iomem *cdns_pci_map_bus(struct pci_bus *bus, unsigned int d #if IS_ENABLED(CONFIG_PCIE_CADENCE_EP) int cdns_pcie_ep_setup(struct cdns_pcie_ep *ep); +void cdns_pcie_ep_disable(struct cdns_pcie_ep *ep); #else static inline int cdns_pcie_ep_setup(struct cdns_pcie_ep *ep) { return 0; } + +static inline void cdns_pcie_ep_disable(struct cdns_pcie_ep *ep) +{ +} #endif void cdns_pcie_detect_quiet_min_delay_set(struct cdns_pcie *pcie); |