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 patch adds device driver for the quad-uart function and
enumerates between 1 to 4 instances of uarts based on the PCIe subsystem
device ID.
The changes from v1->v2->v3->v4 are mentioned in each patch in the patchset.
Thanks to Andy Shevchenko, Ilpo Jarvinen, Chritophe JAILLET, Geert
Uytterhoeven, Greg KH for their review comments.
Kumaravel Thiagarajan (3):
8250: microchip: pci1xxxx: Add driver for quad-uart support.
8250: microchip: pci1xxxx: Add rs485 support to quad-uart driver
8250: microchip: pci1xxxx: Add power management functions to quad-uart
driver
MAINTAINERS | 7 +
drivers/tty/serial/8250/8250_pci.c | 24 +-
drivers/tty/serial/8250/8250_pci1xxxx.c | 536 ++++++++++++++++++++++++
drivers/tty/serial/8250/8250_pcilib.c | 34 ++
drivers/tty/serial/8250/8250_pcilib.h | 5 +
drivers/tty/serial/8250/8250_port.c | 8 +
drivers/tty/serial/8250/Kconfig | 15 +
drivers/tty/serial/8250/Makefile | 2 +
include/uapi/linux/serial_core.h | 3 +
9 files changed, 612 insertions(+), 22 deletions(-)
create mode 100644 drivers/tty/serial/8250/8250_pci1xxxx.c
create mode 100644 drivers/tty/serial/8250/8250_pcilib.c
create mode 100644 drivers/tty/serial/8250/8250_pcilib.h
--
2.25.1
