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| author | Danilo Krummrich <dakr@kernel.org> | 2026-08-13 18:52:04 +0200 |
|---|---|---|
| committer | Danilo Krummrich <dakr@kernel.org> | 2026-08-17 01:41:36 +0200 |
| commit | f146c7bc85a51f95c05e0f8173d484eb301ece78 (patch) | |
| tree | 07296ae54ed6551492b0c609dc0f5463f61f89ca /drivers/soc/microchip/Kconfig | |
| download | linux-stable-f146c7bc85a51f95c05e0f8173d484eb301ece78.tar.gz linux-stable-f146c7bc85a51f95c05e0f8173d484eb301ece78.zip | |
PCI: Add pci_irq_type() to query the allocated interrupt typegrafted
Add a helper that returns PCI_IRQ_MSIX, PCI_IRQ_MSI, or PCI_IRQ_INTX
based on the interrupt type the PCI core selected after
pci_alloc_irq_vectors().
Several drivers already open-code this check against pdev->msix_enabled
and pdev->msi_enabled, or even open code this helper [1].
A common helper avoids the duplication and keeps drivers from accessing
the bitfield directly (see also [2]).
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: John Hubbard <jhubbard@nvidia.com>
Link: https://elixir.bootlin.com/linux/v7.1/source/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c#L196 [1]
Inspired-by: John Hubbard <jhubbard@nvidia.com>
Link: https://lore.kernel.org/all/DKKG2QM3YJYB.Z2H2B2UXJ75N@kernel.org/ [2]
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260813165234.620555-5-dakr@kernel.org
[ Add missing pci_irq_type() stub for CONFIG_PCI=n. ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Diffstat (limited to 'drivers/soc/microchip/Kconfig')
| -rw-r--r-- | drivers/soc/microchip/Kconfig | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/soc/microchip/Kconfig b/drivers/soc/microchip/Kconfig new file mode 100644 index 000000000..af7946741 --- /dev/null +++ b/drivers/soc/microchip/Kconfig @@ -0,0 +1,34 @@ +config POLARFIRE_SOC_IRQ_MUX + bool "Microchip PolarFire SoC's GPIO IRQ Mux" + depends on ARCH_MICROCHIP + select REGMAP + select REGMAP_MMIO + default y + help + Support for the interrupt mux on Polarfire SoC. It sits between + the GPIO controllers and the PLIC, as only 41 interrupts are shared + between 3 GPIO controllers with a total of 70 interrupts. + +config POLARFIRE_SOC_SYS_CTRL + tristate "Microchip PolarFire SoC (MPFS) system controller support" + depends on POLARFIRE_SOC_MAILBOX + depends on MTD + help + This driver adds support for the PolarFire SoC (MPFS) system controller. + + To compile this driver as a module, choose M here. the + module will be called mpfs_system_controller. + + If unsure, say N. + +config POLARFIRE_SOC_SYSCONS + bool "PolarFire SoC (MPFS) syscon drivers" + default y + depends on ARCH_MICROCHIP + select MFD_CORE + help + These drivers add support for the syscons on PolarFire SoC (MPFS). + Without these drivers core parts of the kernel such as clocks + and resets will not function correctly. + + If unsure, and on a PolarFire SoC, say y. |