diff options
| author | Tobias Klauser <tklauser@distanz.ch> | 2015-09-09 20:34:12 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-04 17:47:49 +0100 |
| commit | d144aff1363a332e43be3cb431f6f8600a449cdc (patch) | |
| tree | b378371f2babbd95da26e4002396bf011a4fb504 /drivers/tty/serial/altera_uart.c | |
| parent | acccab429be7fd83987214c50cfde057ea71d118 (diff) | |
serial: altera_uart: Use of_property_read_u32 instead of open-coding it
Use of_property_read_u32 instead of of_get_property with return value
checks and endianness conversion. Also remove the !CONFIG_OF
implementation of altera_uart_get_of_uartclk as of_property_read_u32
will return a non-zero value for !CONFIG_OF.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/altera_uart.c')
| -rw-r--r-- | drivers/tty/serial/altera_uart.c | 26 |
1 files changed, 2 insertions, 24 deletions
diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c index fd87a6f574e3..61b607f2488e 100644 --- a/drivers/tty/serial/altera_uart.c +++ b/drivers/tty/serial/altera_uart.c @@ -508,29 +508,6 @@ static struct uart_driver altera_uart_driver = { .cons = ALTERA_UART_CONSOLE, }; -#ifdef CONFIG_OF -static int altera_uart_get_of_uartclk(struct platform_device *pdev, - struct uart_port *port) -{ - int len; - const __be32 *clk; - - clk = of_get_property(pdev->dev.of_node, "clock-frequency", &len); - if (!clk || len < sizeof(__be32)) - return -ENODEV; - - port->uartclk = be32_to_cpup(clk); - - return 0; -} -#else -static int altera_uart_get_of_uartclk(struct platform_device *pdev, - struct uart_port *port) -{ - return -ENODEV; -} -#endif /* CONFIG_OF */ - static int altera_uart_probe(struct platform_device *pdev) { struct altera_uart_platform_uart *platp = dev_get_platdata(&pdev->dev); @@ -570,7 +547,8 @@ static int altera_uart_probe(struct platform_device *pdev) if (platp) port->uartclk = platp->uartclk; else { - ret = altera_uart_get_of_uartclk(pdev, port); + ret = of_property_read_u32(pdev->dev.of_node, "clock-frequency", + &port->uartclk); if (ret) return ret; } |