On Fri, 19 Oct 2007 11:42:41 +1000
Greg Ungerer <[email protected]> wrote:
> A new style serial driver for the Freescale ColdFire UART to replace
> the old style one currently in the tree (drivers/serial/mcfserial.c).
>
> Currently this UART is only found in the ColdFire CPU family of parts
> (thus I prefixed this patch [M68KNOMMU]).
>
> This has been around for a long while now, tested on all available
> platforms.
>
> ...
>
All of these:
> +/****************************************************************************/
don't really add much value.
> +static unsigned int mcf_get_mctrl(struct uart_port *port)
> +{
> + struct mcf_uart *pp = (struct mcf_uart *) port;
container_of() would be nicer: it explains what's going on and removes the
unpleasing requirement that uart_port be the first member of mcf_uart.
> +static void mcf_set_mctrl(struct uart_port *port, unsigned int sigs)
> +{
> + struct mcf_uart *pp = (struct mcf_uart *) port;
Many instances..
> +static void mcf_set_termios(struct uart_port *port, struct ktermios *termios,
> + struct ktermios *old)
> +{
> + unsigned long flags;
> + unsigned int baud, baudclk;
> + unsigned char mr1, mr2;
Is this all up-to-date with Alan's recent termios changes?
> +static struct mcf_uart mcf_ports[3];
> +
> +#define MCF_MAXPORTS (sizeof(mcf_ports) / sizeof(struct mcf_uart))
Use ARRAY_SIZE here.
> +/****************************************************************************/
> +#if defined(CONFIG_SERIAL_MCF_CONSOLE)
> +/****************************************************************************/
> +
> +int __init early_mcf_setup(struct mcf_platform_uart *platp)
hrm, this is global and has no callers.
> +{
> + struct uart_port *port;
> + int i;
> +
> + for (i = 0; ((i < MCF_MAXPORTS) && (platp[i].mapbase)); i++) {
> + port = &mcf_ports[i].port;
> +
> + port->line = i;
> + port->type = PORT_MCF;
> + port->mapbase = platp[i].mapbase;
> + port->membase = (platp[i].membase) ? platp[i].membase :
> + (unsigned char __iomem *) port->mapbase;
> + port->iotype = SERIAL_IO_MEM;
> + port->irq = platp[i].irq;
> + port->uartclk = MCF_BUSCLK;
> + port->flags = ASYNC_BOOT_AUTOCONF;
> + port->ops = &mcf_uart_ops;
> + }
> +
> + return 0;
> +}
> +
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