kernel/linux.git/drivers/tty/serial/8250/Makefile, branch v6.12.80

serial: 8250: Extract platform driver

2024-06-04T12:01:50+00:00

Extract platform driver to a separate module for better maintenance and to reduce churn on 8250_core part changes when it's solely related to the former. No functional changes intended. Signed-off-by: Andy Shevchenko Acked-by: Sunil V L Tested-by: Sunil V L Link: https://lore.kernel.org/r/20240506140308.4040735-3-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman

serial: 8250: Extract RSA bits

2024-06-04T12:01:50+00:00

Extract RSA bits to a separate module for better maintenance and to reduce a churn on 8250_core part changes when it's solely related to the former. No functional changes intended. Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20240506140308.4040735-2-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman

alpha: remove DECpc AXP150 (Jensen) support

2024-05-03T20:09:50+00:00

This is one of the hackiest Alpha machines, and the only one without PCI support. Removing this allows cleaning up code in eise and tty drivers in addition to the architecture code. Acked-by: Paul E. McKenney Acked-by: Matt Turner Signed-off-by: Arnd Bergmann

tty/serial: 8250: Sort drivers in Makefile

2023-09-18T09:14:43+00:00

Sort drivers in alphabetic order in Makefile to make it easier to find the correct line. In case the CONFIG and filenames disagree, sort using the filename (ignore 8250 prefix while sorting). In addition, place 8250_early separately above the drivers. Signed-off-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20230912103558.20123-2-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman

serial: 8250: RT288x/Au1xxx code away from core

2023-05-13T10:47:26+00:00

A non-trivial amount of RT288x/Au1xxx code is encapsulated into ifdeffery in 8250_port / 8250_early and some if UPIO_AU blocks. Create a separate file from them. Also handle errors properly in the cases where RT288x/Au1xxx code is not configured. It seems that 0x1000 mapsize is likely overkill but I've kept it the same as previously (the value was shrunk to that value in commit b2b13cdfd05e ("SERIAL 8250: Fixes for Alchemy UARTs.")). Seemingly, the driver only needs to access register at 0x28 for the divisor latch. The Kconfig side is a bit tricky. As SERIAL_8250_RT288X is bool it can only be =y. It is possible to have SERIAL_8250=m + SERIAL_8250_RT288X=y which required altering when 8250/ is included or the rt288x would not be built. Signed-off-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20230511121029.13128-5-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman

serial: 8250_pci1xxxx: Add driver for quad-uart support

2023-02-08T12:10:15+00:00

pci1xxxx is a PCIe switch with a multi-function endpoint on one of its downstream ports. Quad-uart is one of the functions in the multi-function endpoint. This driver loads for the quad-uart and enumerates single or multiple instances of uart based on the PCIe subsystem device ID. Co-developed-by: Tharun Kumar P Signed-off-by: Tharun Kumar P Signed-off-by: Kumaravel Thiagarajan Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20230207164814.3104605-3-kumaravel.thiagarajan@microchip.com Signed-off-by: Greg Kroah-Hartman

serial: 8250_pci: Add serial8250_pci_setup_port definition in 8250_pcilib.c

2023-02-08T12:10:15+00:00

Move implementation of setup_port func() to serial8250_pci_setup_port. Co-developed-by: Tharun Kumar P Signed-off-by: Tharun Kumar P Signed-off-by: Kumaravel Thiagarajan Reviewed-by: Ilpo Järvinen Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20230207164814.3104605-2-kumaravel.thiagarajan@microchip.com Signed-off-by: Greg Kroah-Hartman

tty: serial: 8250: add DFL bus driver for Altera 16550.

2023-01-19T15:07:40+00:00

Add a Device Feature List (DFL) bus driver for the Altera 16550 implementation of UART. Signed-off-by: Matthew Gerlach Reviewed-by: Ilpo Järvinen Reviewed-by: Andy Shevchenko Reviewed-by: Marco Pagani Link: https://lore.kernel.org/r/20230115151447.1353428-5-matthew.gerlach@linux.intel.com Signed-off-by: Greg Kroah-Hartman

parisc/serial: Rename 8250_gsc.c to 8250_parisc.c

2022-10-21T06:10:46+00:00

The file name of this driver is misleading - it handles various serial ports on parisc machines, not just such on the GSC bus. Rename the file to make this clearer. Suggested-by: Mikulas Patocka Signed-off-by: Helge Deller

serial: 8250: Move Alpha-specific quirk out of the core

2021-12-30T12:23:44+00:00

struct uart_8250_port contains mcr_mask and mcr_force members whose sole purpose is to work around an Alpha-specific quirk. This code doesn't belong in the core where it is executed by everyone else, so move it to a proper ->set_mctrl callback which is used on the affected Alpha machine only. The quirk was introduced in January 1995: https://git.kernel.org/pub/scm/linux/kernel/git/history/history.git/diff/drivers/char/serial.c?h=1.1.83 The members in struct uart_8250_port were added in 2002: https://git.kernel.org/history/history/c/4524aad27854 The quirk applies to non-PCI Alphas and arch/alpha/Kconfig specifies "select FORCE_PCI if !ALPHA_JENSEN". So apparently the only affected machine is the EISA-based Jensen that Linus was working on back then: https://lore.kernel.org/all/CAHk-=wj1JWZ3sCrGz16nxEj7=0O+srMg6Ah3iPTDXSPKEws_SA@mail.gmail.com/ Up until now the quirk is not applied unless CONFIG_PCI is disabled. If users forget to do that or run a generic Alpha kernel, the serial ports aren't usable on Jensen. Avoid by confining the quirk to CONFIG_ALPHA_JENSEN instead of !CONFIG_PCI. On generic Alpha kernels, auto-detect at runtime whether the quirk needs to be applied. Cc: Russell King Cc: Ulrich Teichert Cc: Linus Torvalds Signed-off-by: Lukas Wunner Link: https://lore.kernel.org/r/b83d069cb516549b8a5420e097bb6bdd806f36fc.1640695609.git.lukas@wunner.de Signed-off-by: Greg Kroah-Hartman