On Fri, 19 Oct 2007 11:42:41 +1000
Greg Ungerer <gerg@xxxxxxxxxxxx> 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;
+}
+