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plda_pcie_setup_iomems() needs the bridge->windows list from struct
pci_host_bridge and is currently used only by pcie-microchip-host.c. This
driver uses pci_host_common_probe(), which sets a pci_host_bridge as the
drvdata, so plda_pcie_setup_iomems() used platform_get_drvdata() to find
the pci_host_bridge.
But we also want to use plda_pcie_setup_iomems() in the new pcie-starfive.c
driver, which does not use pci_host_common_probe() and will have struct
starfive_jh7110_pcie as its drvdata, so pass the pci_host_bridge directly
to plda_pcie_setup_iomems() so it doesn't need platform_get_drvdata() to
find it.
Link: https://lore.kernel.org/linux-pci/20240328091835.14797-9-minda.chen@starfivetech.com
Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
[bhelgaas: commit log, reorder to where this is needed]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
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Add PLDA host plda_pcie_host_init()/plda_pcie_host_deinit() and map bus
function so vendors can use it to init PLDA PCIe host core.
Link: https://lore.kernel.org/linux-pci/20240328091835.14797-19-minda.chen@starfivetech.com
Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mason Huo <mason.huo@starfivetech.com>
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PLDA DMA interrupts are not all implemented, and the non-implemented
interrupts should be masked. Add a bitmap field to mask the non-implemented
interrupts.
Link: https://lore.kernel.org/linux-pci/20240328091835.14797-18-minda.chen@starfivetech.com
Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Move IRQ related functions to common file pcie-plda-host.c
The re-use code including MSI, INTx, event interrupts and IRQ init
functions.
Link: https://lore.kernel.org/linux-pci/20240328091835.14797-17-minda.chen@starfivetech.com
Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
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Move plda_pcie_setup_window() and plda_pcie_setup_iomems() to
pcie-plda-host.c so they can be shared by all PLDA-based drivers.
Link: https://lore.kernel.org/linux-pci/20240328091835.14797-10-minda.chen@starfivetech.com
Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
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