Maciej W. Rozycki 66bcd06099 parport_pc: Also enable driver for PCI systems ... Nowadays PC-style parallel ports come in the form of PCI and PCIe option cards and there are some combined parallel/serial option cards as well that we handle in the parport subsystem. There is nothing in particular that would prevent them from being used in any system equipped with PCI or PCIe connectivity, except that we do not permit the PARPORT_PC config option to be selected for platforms for which ARCH_MIGHT_HAVE_PC_PARPORT has not been set for. The only PCI platforms that actually can't make use of PC-style parallel port hardware are those newer PCIe systems that have no support for I/O cycles in the host bridge, required by such parallel ports. Notably, this includes the s390 arch, which has port I/O accessors that cause compilation warnings (promoted to errors with `-Werror'), and there are other cases such as the POWER9 PHB4 device, though this one has variable port I/O accessors that depend on the particular system. Also it is not clear whether the serial port side of devices enabled by PARPORT_SERIAL uses port I/O or MMIO. Finally Super I/O solutions are always either ISA or platform devices. Make the PARPORT_PC option selectable also for PCI systems then, except for the s390 arch, however limit the availability of PARPORT_PC_SUPERIO to platforms that enable ARCH_MIGHT_HAVE_PC_PARPORT. Update platforms accordingly for the required <asm/parport.h> header. Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Link: https://lore.kernel.org/r/alpine.DEB.2.21.2202141955550.34636@angie.orcam.me.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-03-18 14:01:41 +01:00
..
BUGS-parport
daisy.c
ieee1284_ops.c	parport: remove non-zero check on count	2021-08-27 16:18:42 +02:00
ieee1284.c
Kconfig	parport_pc: Also enable driver for PCI systems	2022-03-18 14:01:41 +01:00
Makefile
multiface.h
parport_amiga.c
parport_atari.c
parport_ax88796.c
parport_cs.c
parport_gsc.c	parisc/parport_gsc: switch from 'pci_' to 'dma_' API	2021-08-30 10:18:25 +02:00
parport_gsc.h
parport_ip32.c	treewide: remove editor modelines and cruft	2021-05-07 00:26:34 -07:00
parport_mfc3.c
parport_pc.c
parport_serial.c	parport: serial: Retrieve IRQ vector with help of special getter	2021-07-29 17:08:40 +02:00
parport_sunbpp.c
probe.c	parport: Use string_upper() instead of open coded variant	2021-05-21 14:48:58 +02:00
procfs.c
share.c
TODO-parport