diff options
| author | Niklas Cassel <cassel@kernel.org> | 2025-03-10 10:48:27 +0100 |
|---|---|---|
| committer | Krzysztof Wilczyński <kwilczynski@kernel.org> | 2025-03-14 16:13:19 +0000 |
| commit | e3d6957f177936281278d259029a1a2184ba50d4 (patch) | |
| tree | 7d9d367ace616ada2d612bc096102fd4c22c60d6 /drivers/pci/controller/dwc/pcie-designware.h | |
| parent | 8189aa56dbed0bfb46b7b30d4d231f57ab17b3f4 (diff) | |
PCI: dwc: ep: Add dw_pcie_ep_hide_ext_capability()
Add dw_pcie_ep_hide_ext_capability() which can be used by an endpoint
controller driver to hide a capability.
This can be useful to hide a capability that is buggy, such that the
host side does not try to enable the buggy capability.
Suggested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Link: https://lore.kernel.org/r/20250310094826.842681-5-cassel@kernel.org
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-designware.h')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index a03b3799fb27..2d1de81d47b6 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -781,6 +781,7 @@ int dw_pcie_ep_raise_msix_irq(struct dw_pcie_ep *ep, u8 func_no, int dw_pcie_ep_raise_msix_irq_doorbell(struct dw_pcie_ep *ep, u8 func_no, u16 interrupt_num); void dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar); +int dw_pcie_ep_hide_ext_capability(struct dw_pcie *pci, u8 prev_cap, u8 cap); struct dw_pcie_ep_func * dw_pcie_ep_get_func_from_ep(struct dw_pcie_ep *ep, u8 func_no); #else @@ -838,6 +839,12 @@ static inline void dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar) { } +static inline int dw_pcie_ep_hide_ext_capability(struct dw_pcie *pci, + u8 prev_cap, u8 cap) +{ + return 0; +} + static inline struct dw_pcie_ep_func * dw_pcie_ep_get_func_from_ep(struct dw_pcie_ep *ep, u8 func_no) { |