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[0/3] Add Identification and 64 bit fifo support to Renesas RZ/V2M 16750 UART

Message ID 20230209132630.194947-1-biju.das.jz@bp.renesas.com (mailing list archive)
Headers show
Series Add Identification and 64 bit fifo support to Renesas RZ/V2M 16750 UART | expand

Message

Biju Das Feb. 9, 2023, 1:26 p.m. UTC 
Add identification and 64 bit fifo support to Renesas RZ/V2M 16750 UART.
This patch series also simplifies 8250_em_probe() and also updates the
RZ/V2M specific register handling for the below restriction mentioned in
hardware manual

40.6.1 Point for Caution when Changing the Register Settings:

When changing the settings of the following registers, a PRESETn master
reset or FIFO reset + SW reset (FCR[2],FCR[1], HCR0[7]) must be input to
re-initialize them.

Target Registers: FCR, LCR, MCR, DLL, DLM, HCR0.

Biju Das (3):
  serial: 8250: Identify Renesas RZ/V2M 16750 UART
  serial: 8250_em: Use dev_err_probe()
  serial: 8250_em: Add serial8250_rzv2m_reg_update()

 drivers/tty/serial/8250/8250_em.c   | 70 +++++++++++++++++++++++------
 drivers/tty/serial/8250/8250_port.c | 27 +++++++++++
 2 files changed, 84 insertions(+), 13 deletions(-)