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tty/serial: at91: revise the return type of atmel_init_property

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The function of atmel_init_property is to set the work manner of
atmel serial ports according to the property in device trees.
If DMA or PDC is not set or something goes wrong in getting property,
the work manner will switch to general PIO mode, thus there will
not be any failure case in this function. It's actually a procedure.
So changing the return type from int to void.

Signed-off-by: Leilei Zhao <leilei.zhao@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Leilei Zhao 2015-02-27 16:07:16 +08:00 committed by Greg Kroah-Hartman
parent a510880f6e
commit 4a1e888867
1 changed files with 3 additions and 4 deletions
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5
drivers/tty/serial/atmel_serial.c
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@ -1534,7 +1534,7 @@ static void atmel_tasklet_func(unsigned long data)
spin_unlock(&port->lock);
}
static int atmel_init_property(struct atmel_uart_port *atmel_port,
static void atmel_init_property(struct atmel_uart_port *atmel_port,
struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@ -1575,7 +1575,6 @@ static int atmel_init_property(struct atmel_uart_port *atmel_port,
atmel_port->use_dma_tx = false;
}
return 0;
}
static void atmel_init_rs485(struct uart_port *port,
@ -2235,7 +2234,7 @@ static int atmel_init_port(struct atmel_uart_port *atmel_port,
struct uart_port *port = &atmel_port->uart;
struct atmel_uart_data *pdata = dev_get_platdata(&pdev->dev);
if (!atmel_init_property(atmel_port, pdev))
atmel_init_property(atmel_port, pdev);
atmel_set_ops(port);
atmel_init_rs485(port, pdev);