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serial: remove quot_frac from serial8250_do_set_divisor()

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quot_frac is unused in serial8250_do_set_divisor() since commit
b2b4b8ed3c (serial: 8250_exar: Move custom divisor support out from
8250_port). So no point to pass it.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240805102046.307511-5-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby (SUSE) 2024-08-05 12:20:37 +02:00 committed by Greg Kroah-Hartman
parent d0009a32c9
commit 259b462048
5 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/tty/serial/8250/8250_dwlib.c
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@ -89,7 +89,7 @@ static void dw8250_set_divisor(struct uart_port *p, unsigned int baud,
unsigned int quot, unsigned int quot_frac) unsigned int quot, unsigned int quot_frac)
{ {
dw8250_writel_ext(p, DW_UART_DLF, quot_frac); dw8250_writel_ext(p, DW_UART_DLF, quot_frac);
serial8250_do_set_divisor(p, baud, quot, quot_frac); serial8250_do_set_divisor(p, baud, quot);
} }
void dw8250_do_set_termios(struct uart_port *p, struct ktermios *termios, void dw8250_do_set_termios(struct uart_port *p, struct ktermios *termios,

2
drivers/tty/serial/8250/8250_exar.c
View File

@ -500,7 +500,7 @@ static unsigned int xr17v35x_get_divisor(struct uart_port *p, unsigned int baud,
static void xr17v35x_set_divisor(struct uart_port *p, unsigned int baud, static void xr17v35x_set_divisor(struct uart_port *p, unsigned int baud,
unsigned int quot, unsigned int quot_frac) unsigned int quot, unsigned int quot_frac)
{ {
serial8250_do_set_divisor(p, baud, quot, quot_frac); serial8250_do_set_divisor(p, baud, quot);
/* Preserve bits not related to baudrate; DLD[7:4]. */ /* Preserve bits not related to baudrate; DLD[7:4]. */
quot_frac |= serial_port_in(p, 0x2) & 0xf0; quot_frac |= serial_port_in(p, 0x2) & 0xf0;

2
drivers/tty/serial/8250/8250_pci.c
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@ -1277,7 +1277,7 @@ static void pci_oxsemi_tornado_set_divisor(struct uart_port *port,
serial_icr_write(up, UART_TCR, tcr); serial_icr_write(up, UART_TCR, tcr);
serial_icr_write(up, UART_CPR, cpr); serial_icr_write(up, UART_CPR, cpr);
serial_icr_write(up, UART_CKS, cpr2); serial_icr_write(up, UART_CKS, cpr2);
serial8250_do_set_divisor(port, baud, quot, 0); serial8250_do_set_divisor(port, baud, quot);
} }
/* /*

4
drivers/tty/serial/8250/8250_port.c
View File

@ -2609,7 +2609,7 @@ static unsigned char serial8250_compute_lcr(struct uart_8250_port *up,
} }
void serial8250_do_set_divisor(struct uart_port *port, unsigned int baud, void serial8250_do_set_divisor(struct uart_port *port, unsigned int baud,
unsigned int quot, unsigned int quot_frac) unsigned int quot)
{ {
struct uart_8250_port *up = up_to_u8250p(port); struct uart_8250_port *up = up_to_u8250p(port);
@ -2641,7 +2641,7 @@ static void serial8250_set_divisor(struct uart_port *port, unsigned int baud,
if (port->set_divisor) if (port->set_divisor)
port->set_divisor(port, baud, quot, quot_frac); port->set_divisor(port, baud, quot, quot_frac);
else else
serial8250_do_set_divisor(port, baud, quot, quot_frac); serial8250_do_set_divisor(port, baud, quot);
} }
static unsigned int serial8250_get_baud_rate(struct uart_port *port, static unsigned int serial8250_get_baud_rate(struct uart_port *port,

2
include/linux/serial_8250.h
View File

@ -193,7 +193,7 @@ void serial8250_do_pm(struct uart_port *port, unsigned int state,
unsigned int oldstate); unsigned int oldstate);
void serial8250_do_set_mctrl(struct uart_port *port, unsigned int mctrl); void serial8250_do_set_mctrl(struct uart_port *port, unsigned int mctrl);
void serial8250_do_set_divisor(struct uart_port *port, unsigned int baud, void serial8250_do_set_divisor(struct uart_port *port, unsigned int baud,
unsigned int quot, unsigned int quot_frac); unsigned int quot);
int fsl8250_handle_irq(struct uart_port *port); int fsl8250_handle_irq(struct uart_port *port);
int serial8250_handle_irq(struct uart_port *port, unsigned int iir); int serial8250_handle_irq(struct uart_port *port, unsigned int iir);
u16 serial8250_rx_chars(struct uart_8250_port *up, u16 lsr); u16 serial8250_rx_chars(struct uart_8250_port *up, u16 lsr);