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806eb9e416
On s390 systems (aka mainframes), it has classic channel devices for networking and permanent storage that are currently even more common than PCI devices. Hence it could have a fully functional s390 kernel with CONFIG_PCI=n, then the relevant iomem mapping functions [including ioremap(), devm_ioremap(), etc.] are not available. Here let XILLYBUS_OF depend on HAS_IOMEM so that it won't be built to cause below compiling error if PCI is unset: ------ ERROR: modpost: "devm_platform_ioremap_resource" [drivers/char/xillybus/xillybus_of.ko] undefined! ------ Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202306211329.ticOJCSv-lkp@intel.com/ Signed-off-by: Baoquan He <bhe@redhat.com> Acked-by: Eli Billauer <eli.billauer@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20230707135852.24292-3-bhe@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
52 lines
1.3 KiB
Text
52 lines
1.3 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Xillybus devices
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#
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config XILLYBUS_CLASS
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tristate
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config XILLYBUS
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tristate "Xillybus generic FPGA interface"
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depends on PCI || OF
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select CRC32
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select XILLYBUS_CLASS
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help
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Xillybus is a generic interface for peripherals designed on
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programmable logic (FPGA). The driver probes the hardware for
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its capabilities, and creates device files accordingly.
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If unsure, say N.
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if XILLYBUS
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config XILLYBUS_PCIE
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tristate "Xillybus over PCIe"
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depends on PCI_MSI
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help
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Set to M if you want Xillybus to use PCI Express for communicating
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with the FPGA. The module will be called xillybus_pcie.
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config XILLYBUS_OF
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tristate "Xillybus over Device Tree"
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depends on OF && HAS_DMA && HAS_IOMEM
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help
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Set to M if you want Xillybus to find its resources from the
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Open Firmware Flattened Device Tree. If the target is an embedded
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system, say M. The module will be called xillybus_of.
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endif # if XILLYBUS
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# XILLYUSB doesn't depend on XILLYBUS
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config XILLYUSB
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tristate "XillyUSB: Xillybus generic FPGA interface for USB"
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depends on USB
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select CRC32
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select XILLYBUS_CLASS
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help
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XillyUSB is the Xillybus variant which uses USB for communicating
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with the FPGA.
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Set to M if you want Xillybus to use USB for communicating with
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the FPGA. The module will be called xillyusb.
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