diff options
| author |   Kishon Vijay Abraham I <kishon@ti.com> | 2019-01-14 16:45:00 +0530 |
|---|---|---|
| committer |   Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2019-02-14 16:09:14 +0000 |
| commit | fee35cb76a54c87985410ea6aa12002e5d38b367 (patch) | |
| tree | 94f84e9f216a4b5e297bd0b02bb0a054e948097d /drivers/pci/controller | |
| parent | PCI: endpoint: Add new pci_epc_ops to get EPC features (diff) | |
| download | linux-dev-fee35cb76a54c87985410ea6aa12002e5d38b367.tar.xz linux-dev-fee35cb76a54c87985410ea6aa12002e5d38b367.zip | |
PCI: dwc: Add ->get_features() callback function to dw_pcie_ep_ops
Each platform using Designware PCIe core can support different set of
endpoint features. Add a new callback function ->get_features() in
dw_pcie_ep_ops so that each platform using Designware PCIe core can
advertise its supported features to the endpoint function driver.
Tested-by: Gustavo Pimentel <gustavo.pimentel@synopsys.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')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware-ep.c | 12 | ||||
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware.h | 1 |
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c index a543c45c7224..7a2925a16ab8 100644 --- a/drivers/pci/controller/dwc/pcie-designware-ep.c +++ b/drivers/pci/controller/dwc/pcie-designware-ep.c @@ -355,6 +355,17 @@ static int dw_pcie_ep_start(struct pci_epc *epc) return pci->ops->start_link(pci); } +static const struct pci_epc_features* +dw_pcie_ep_get_features(struct pci_epc *epc, u8 func_no) +{ + struct dw_pcie_ep *ep = epc_get_drvdata(epc); + + if (!ep->ops->get_features) + return NULL; + + return ep->ops->get_features(ep); +} + static const struct pci_epc_ops epc_ops = { .write_header = dw_pcie_ep_write_header, .set_bar = dw_pcie_ep_set_bar, @@ -368,6 +379,7 @@ static const struct pci_epc_ops epc_ops = { .raise_irq = dw_pcie_ep_raise_irq, .start = dw_pcie_ep_start, .stop = dw_pcie_ep_stop, + .get_features = dw_pcie_ep_get_features, }; int dw_pcie_ep_raise_legacy_irq(struct dw_pcie_ep *ep, u8 func_no) diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index 9943d8c68335..1f56e6ae34ff 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -192,6 +192,7 @@ struct dw_pcie_ep_ops { void (*ep_init)(struct dw_pcie_ep *ep); int (*raise_irq)(struct dw_pcie_ep *ep, u8 func_no, enum pci_epc_irq_type type, u16 interrupt_num); + const struct pci_epc_features* (*get_features)(struct dw_pcie_ep *ep); }; struct dw_pcie_ep { |