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[v4,0/6] serial: Separate RT288x/Au1xxx code into own file

Message ID 20230511121029.13128-1-ilpo.jarvinen@linux.intel.com
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Series serial: Separate RT288x/Au1xxx code into own file | expand

Message

Ilpo Järvinen May 11, 2023, 12:10 p.m. UTC 
A non-trivial amount of RT288x/Au1xxx code is encapsulated into
ifdeffery in 8250_port / 8250_early and some if/switch UPIO_AU blocks.
Create a separate file from them and do a few additional cleanups.

I kept the Kconfig entry as bool because the code has somewhat tricky
dependency chain (mips arch code and 8250_of driver).

v4:
- Type changes
	- bugs: unsigned short -> u16
	- use u32 for old_dl too

v3:
- Convert dl_read/write() to take u32 arg + name the args
- Separatate the non-driver datastructure changes & document them better
- Fix build when SERIAL_8250=m + SERIAL_8250_RT288X=y (+note reasoning
  in the commit message for future reference)
- Use u8 for arrays that no longer have < 0 values

v2:
- Define register map array lengths explicitly to avoid creating
  declaration trap.

Ilpo Järvinen (6):
  serial: 8250: Change dl_read/write to handle value as u32
  serial: 8250: Document uart_8250_port's ->dl_read/write()
  serial: 8250: Add dl_read/write, bugs and mapsize into
    plat_serial8250_port
  serial: 8250: RT288x/Au1xxx code away from core
  serial: 8250_rt288x: Name non-standard divisor latch reg
  serial: 8250_rt288x: Remove unnecessary UART_REG_UNMAPPED

 arch/mips/alchemy/common/platform.c     |  10 +-
 drivers/tty/serial/8250/8250.h          |   4 +-
 drivers/tty/serial/8250/8250_core.c     |   4 +
 drivers/tty/serial/8250/8250_early.c    |  21 ----
 drivers/tty/serial/8250/8250_em.c       |   4 +-
 drivers/tty/serial/8250/8250_of.c       |   4 +-
 drivers/tty/serial/8250/8250_port.c     |  84 +--------------
 drivers/tty/serial/8250/8250_pxa.c      |   2 +-
 drivers/tty/serial/8250/8250_rt288x.c   | 136 ++++++++++++++++++++++++
 drivers/tty/serial/8250/8250_uniphier.c |   4 +-
 drivers/tty/serial/8250/Makefile        |   1 +
 drivers/tty/serial/Makefile             |   2 +-
 include/linux/serial_8250.h             |  44 ++++++--
 13 files changed, 201 insertions(+), 119 deletions(-)
 create mode 100644 drivers/tty/serial/8250/8250_rt288x.c