diff options
| author | Vineet Gupta <Vineet.Gupta1@synopsys.com> | 2014-07-11 17:01:37 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-12 04:49:46 +0400 |
| commit | f363ca2fc8d12ebaad1a8bdae0f164c17c747b89 (patch) | |
| tree | 15538acb7caf0c49fcf8fff23bf08f4de667b277 /drivers/tty/serial/arc_uart.c | |
| parent | 2970b7f5ea3cea2f169ca23fd863e24d03748ffd (diff) | |
| download | linux-f363ca2fc8d12ebaad1a8bdae0f164c17c747b89.tar.xz | |
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>
Diffstat (limited to 'drivers/tty/serial/arc_uart.c')
| -rw-r--r-- | drivers/tty/serial/arc_uart.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/tty/serial/arc_uart.c b/drivers/tty/serial/arc_uart.c index 3a504fb9c9e8..f8dc7d381956 100644 --- a/drivers/tty/serial/arc_uart.c +++ b/drivers/tty/serial/arc_uart.c @@ -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, |