kernel/linux.git/drivers/tty/serial/rsci.c, branch linux-7.0.y

serial: rsci: Convert to FIELD_MODIFY()

2025-12-23T10:52:31+00:00

Use the FIELD_MODIFY() helper instead of open-coding the same operation. Signed-off-by: Geert Uytterhoeven Link: https://patch.msgid.link/ada3faf4698155a618ae6371b35eab121eb8b19c.1766411924.git.geert+renesas@glider.be Signed-off-by: Greg Kroah-Hartman

serial: sh-sci: Add support for RZ/G3E RSCI

2025-12-17T14:07:07+00:00

Add support for RZ/G3E RSCI. RSCI IP found on the RZ/G3E SoC is similar to RZ/T2H, but it has a 32-stage FIFO. It has 6 clocks(5 module clocks + 1 external clock) instead of 3 clocks(2 module clocks + 1 external clock) on T2H, has 6 irqs compared to 4 on RZ/T2H and has multiple resets. Add support for the hardware flow control. Signed-off-by: Biju Das Tested-by: Lad Prabhakar Link: https://patch.msgid.link/20251129164325.209213-18-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman

serial: rsci: Rename early_console data, port_params and callback() names

2025-12-17T14:07:07+00:00

Rename rsci_early_console_setup()->rsci_rzt2h_early_console_setup(), the early_console data of_sci_rsci_data->of_rsci_rzt2h_data and the port_params rsci_port_params->rsci_rzt2h_port_params to support RZ/G3E RSCI that uses different data and callback(). Signed-off-by: Biju Das Tested-by: Lad Prabhakar Link: https://patch.msgid.link/20251129164325.209213-17-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman

serial: sh-sci: Rename port SCI_PORT_RSCI->RSCI_PORT_SCIF16

2025-12-17T14:07:07+00:00

Rename port SCI_PORT_RSCI->RSCI_PORT_SCIF16 to differentiate it from RZ/G3E port that has 32-stage FIFO. Signed-off-by: Biju Das Tested-by: Lad Prabhakar Link: https://patch.msgid.link/20251129164325.209213-12-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman

serial: rsci: Drop unused TDR register

2025-12-17T14:07:07+00:00

Drop the unused TDR register-related macros. Reviewed-by: Geert Uytterhoeven Signed-off-by: Biju Das Tested-by: Lad Prabhakar Link: https://patch.msgid.link/20251129164325.209213-9-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman

serial: rsci: Drop unused macro DCR

2025-12-17T14:07:07+00:00

Drop unused macro DCR and its bit definition. Reviewed-by: Geert Uytterhoeven Signed-off-by: Biju Das Tested-by: Lad Prabhakar Link: https://patch.msgid.link/20251129164325.209213-8-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman

serial: rsci: Drop rsci_clear_SCxSR()

2025-12-17T14:07:06+00:00

Drop rsci_clear_SCxSR by reusing rsci_clear_CFC() as the contents of both functions are the same. Reviewed-by: Geert Uytterhoeven Signed-off-by: Biju Das Tested-by: Lad Prabhakar Link: https://patch.msgid.link/20251129164325.209213-6-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman

serial: rsci: Add set_rtrg() callback

2025-12-17T14:07:06+00:00

The rtrg variable is populated in sci_init_single() for RZ/T2H. Add set_rtrg() callback for setting the rtrg value. Signed-off-by: Biju Das Tested-by: Lad Prabhakar Link: https://patch.msgid.link/20251129164325.209213-4-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman

serial: sh-sci: Add support for RZ/T2H SCI

2025-07-09T11:45:30+00:00

Define a new RSCI port type, and the RSCI 32 bits registers set. The RZ/T2H SCI has a a fifo, and a quite different set of registers from the original SH SCI ones. DMA is not supported yet. Signed-off-by: Thierry Bultel Signed-off-by: Lad Prabhakar Reviewed-by: Wolfram Sang Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20250630202323.279809-6-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Greg Kroah-Hartman