Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
serial: rsci: Add set_rtrg() callback
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 <biju.das.jz@bp.renesas.com>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://patch.msgid.link/20251129164325.209213-4-biju.das.jz@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
authored by
Biju Das
and committed by
Greg Kroah-Hartman
b346e5d7
3a3ab102
+17
+17
drivers/tty/serial/rsci.c
+17
drivers/tty/serial/rsci.c
···
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rsci_serial_out(port, CCR0, ctrl);
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}
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static int rsci_scif_set_rtrg(struct uart_port *port, int rx_trig)
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{
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u32 fcr = rsci_serial_in(port, FCR);
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+
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if (rx_trig >= port->fifosize)
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rx_trig = port->fifosize - 1;
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else if (rx_trig < 1)
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rx_trig = 0;
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fcr &= ~FCR_RTRG4_0;
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fcr |= field_prep(FCR_RTRG4_0, rx_trig);
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rsci_serial_out(port, FCR, fcr);
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return rx_trig;
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}
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+
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static void rsci_set_termios(struct uart_port *port, struct ktermios *termios,
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const struct ktermios *old)
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{
···
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.poll_put_char = rsci_poll_put_char,
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.prepare_console_write = rsci_prepare_console_write,
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.suspend_regs_size = rsci_suspend_regs_size,
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.set_rtrg = rsci_scif_set_rtrg,
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.shutdown_complete = rsci_shutdown_complete,
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};
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