[PATCH v2 0/3] pdate Renesas RZ/V2M UART Port type

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The Renesas RZ/V2M UART compatible with the general-purpose 16750 UART chip.
This patch updates Renesas RZ/V2M UART type from 16550a->16750 and also
enables 64-bytes fifo.

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.

v1->v2:
 * Dropped patch#1 from previous series
 * Replaced devm_clk_get->devm_clk_get_enabled() and updated clk
   handling in probe().
 * Added Rb tag from Geert.
 * Added patch for updating Renesas RZ/V2M UART type from 16550a->16750
   and also enables 64-bytes fifo.
 * Used .data for taking h/w differences between EMMA mobile and RZ/V2M UART.
 * Added serial_out() to struct serial8250_em_hw_info for the write register
   differences between EMMA mobile and RZ/V2M UART.
Biju Das (3):
  serial: 8250_em: Use dev_err_probe()
  serial: 8250_em: Update RZ/V2M port type as PORT_16750
  serial: 8250_em: Add serial_out() to struct serial8250_em_hw_info

 drivers/tty/serial/8250/8250_em.c | 114 ++++++++++++++++++++++++------
 1 file changed, 91 insertions(+), 23 deletions(-)

-- 
2.25.1




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