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| author | Gustavo Pimentel <gustavo.pimentel@synopsys.com> | 2018-07-19 10:32:16 +0200 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2018-07-19 11:38:38 +0100 |
| commit | cb22d40b5f2bcf9d374ae92ea504df620daea342 (patch) | |
| tree | b0668287d98941040b869f358454443fc0d7a87f /drivers/pci | |
| parent | 3920a5d7b24dc5229abe6fb8409e4c9de2c8c7a0 (diff) | |
| download | linux-cb22d40b5f2bcf9d374ae92ea504df620daea342.tar.gz linux-cb22d40b5f2bcf9d374ae92ea504df620daea342.tar.bz2 linux-cb22d40b5f2bcf9d374ae92ea504df620daea342.zip | |
PCI: dwc: Add legacy interrupt callback handler
Currently DesignWare IP does not handle legacy interrupts.
Add a legacy interrupt callback handler.
Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware-ep.c | 10 | ||||
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware-plat.c | 3 | ||||
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware.h | 6 |
3 files changed, 17 insertions, 2 deletions
diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c index dd9c36678cba..1e7b02221eac 100644 --- a/drivers/pci/controller/dwc/pcie-designware-ep.c +++ b/drivers/pci/controller/dwc/pcie-designware-ep.c @@ -370,6 +370,16 @@ static const struct pci_epc_ops epc_ops = { .stop = dw_pcie_ep_stop, }; +int dw_pcie_ep_raise_legacy_irq(struct dw_pcie_ep *ep, u8 func_no) +{ + struct dw_pcie *pci = to_dw_pcie_from_ep(ep); + struct device *dev = pci->dev; + + dev_err(dev, "EP cannot trigger legacy IRQs\n"); + + return -EINVAL; +} + int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no, u8 interrupt_num) { diff --git a/drivers/pci/controller/dwc/pcie-designware-plat.c b/drivers/pci/controller/dwc/pcie-designware-plat.c index 35d2291c6ba5..3f8a3aa3a91e 100644 --- a/drivers/pci/controller/dwc/pcie-designware-plat.c +++ b/drivers/pci/controller/dwc/pcie-designware-plat.c @@ -87,8 +87,7 @@ static int dw_plat_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no, switch (type) { case PCI_EPC_IRQ_LEGACY: - dev_err(pci->dev, "EP cannot trigger legacy IRQs\n"); - return -EINVAL; + return dw_pcie_ep_raise_legacy_irq(ep, func_no); case PCI_EPC_IRQ_MSI: return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num); case PCI_EPC_IRQ_MSIX: diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index e8b97f5a64be..96126fd8403c 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -348,6 +348,7 @@ static inline int dw_pcie_allocate_domains(struct pcie_port *pp) void dw_pcie_ep_linkup(struct dw_pcie_ep *ep); int dw_pcie_ep_init(struct dw_pcie_ep *ep); void dw_pcie_ep_exit(struct dw_pcie_ep *ep); +int dw_pcie_ep_raise_legacy_irq(struct dw_pcie_ep *ep, u8 func_no); int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no, u8 interrupt_num); int dw_pcie_ep_raise_msix_irq(struct dw_pcie_ep *ep, u8 func_no, @@ -367,6 +368,11 @@ static inline void dw_pcie_ep_exit(struct dw_pcie_ep *ep) { } +static inline int dw_pcie_ep_raise_legacy_irq(struct dw_pcie_ep *ep, u8 func_no) +{ + return 0; +} + static inline int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no, u8 interrupt_num) { |