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serial/arc: Fix warning with CONSOLE_POLL 

| drivers/tty/serial/arc_uart.c:516:2: warning: (near initialization for 'arc_serial_pops.poll_put_char') [enabled by default]

This partially undoes "serial/arc: use uart_console_write() helper" by
restoring the prototpye of poll helper and use a different one in
uart_console_write()

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vineet Gupta 2014-07-11 18:31:37 +05:30 committed by Greg Kroah-Hartman
parent 2970b7f5ea
commit f363ca2fc8
1 changed files with 13 additions and 7 deletions
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20
drivers/tty/serial/arc_uart.c
View File

@ -442,18 +442,16 @@ static void arc_serial_config_port(struct uart_port *port, int flags)
port->type = PORT_ARC;
}
#if defined(CONFIG_CONSOLE_POLL) || defined(CONFIG_SERIAL_ARC_CONSOLE)
#ifdef CONFIG_CONSOLE_POLL
static void arc_serial_poll_putchar(struct uart_port *port, int chr)
static void arc_serial_poll_putchar(struct uart_port *port, unsigned char chr)
{
while (!(UART_GET_STATUS(port) & TXEMPTY))
cpu_relax();
UART_SET_DATA(port, (unsigned char)chr);
UART_SET_DATA(port, chr);
}
#endif
#ifdef CONFIG_CONSOLE_POLL
static int arc_serial_poll_getchar(struct uart_port *port)
{
unsigned char chr;
@ -519,6 +517,14 @@ static int arc_serial_console_setup(struct console *co, char *options)
return uart_set_options(port, co, baud, parity, bits, flow);
}
static void arc_serial_console_putchar(struct uart_port *port, int ch)
{
while (!(UART_GET_STATUS(port) & TXEMPTY))
cpu_relax();
UART_SET_DATA(port, (unsigned char)ch);
}
/*
* Interrupts are disabled on entering
*/
@ -529,7 +535,7 @@ static void arc_serial_console_write(struct console *co, const char *s,
unsigned long flags;
spin_lock_irqsave(&port->lock, flags);
uart_console_write(port, s, count, arc_serial_poll_putchar);
uart_console_write(port, s, count, arc_serial_console_putchar);
spin_unlock_irqrestore(&port->lock, flags);
}
@ -548,7 +554,7 @@ static __init void arc_early_serial_write(struct console *con, const char *s,
{
struct earlycon_device *dev = con->data;
uart_console_write(&dev->port, s, n, arc_serial_poll_putchar);
uart_console_write(&dev->port, s, n, arc_serial_console_putchar);
}
static int __init arc_early_console_setup(struct earlycon_device *dev,