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serial: 8250: extract serial8250_init_mctrl()

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After commit 795158691c ("serial: 8250: extract
serial8250_initialize()"), split serial8250_initialize() even more --
the mctrl part of this code can be separated into
serial8250_init_mctrl() -- done now.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Suggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250624080641.509959-2-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby (SUSE)
2025-06-24 10:06:37 +02:00
committed by Greg Kroah-Hartman
parent d22cf13814
commit 7bdf59c79c
1 changed files with 13 additions and 8 deletions
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21
drivers/tty/serial/8250/8250_port.c
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@@ -2216,15 +2216,8 @@ static void serial8250_THRE_test(struct uart_port *port)
up->bugs |= UART_BUG_THRE;
}
static void serial8250_initialize(struct uart_port *port)
static void serial8250_init_mctrl(struct uart_port *port)
{
struct uart_8250_port *up = up_to_u8250p(port);
unsigned long flags;
bool lsr_TEMT, iir_NOINT;
serial_port_out(port, UART_LCR, UART_LCR_WLEN8);
uart_port_lock_irqsave(port, &flags);
if (port->flags & UPF_FOURPORT) {
if (!port->irq)
port->mctrl |= TIOCM_OUT1;
@@ -2235,6 +2228,18 @@ static void serial8250_initialize(struct uart_port *port)
}
serial8250_set_mctrl(port, port->mctrl);
}
static void serial8250_initialize(struct uart_port *port)
{
struct uart_8250_port *up = up_to_u8250p(port);
unsigned long flags;
bool lsr_TEMT, iir_NOINT;
serial_port_out(port, UART_LCR, UART_LCR_WLEN8);
uart_port_lock_irqsave(port, &flags);
serial8250_init_mctrl(port);
/*
* Serial over Lan (SoL) hack: