提交 6c6a2334 编写于 作者: S Sergei Shtylyov 提交者: Russell King

[SERIAL] Make uart_line_info() correctly tell MMIO from I/O port

/proc/tty/driver/serial incorrectly claims that UARTs having iotype of
UPIO_MEM32, UPIO_AU, or UPIO_TSI are I/O mapped.
Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
上级 a4b77573
......@@ -1662,16 +1662,16 @@ static int uart_line_info(char *buf, struct uart_driver *drv, int i)
struct uart_port *port = state->port;
char stat_buf[32];
unsigned int status;
int ret;
int mmio, ret;
if (!port)
return 0;
mmio = port->iotype >= UPIO_MEM;
ret = sprintf(buf, "%d: uart:%s %s%08lX irq:%d",
port->line, uart_type(port),
port->iotype == UPIO_MEM ? "mmio:0x" : "port:",
port->iotype == UPIO_MEM ? port->mapbase :
(unsigned long) port->iobase,
mmio ? "mmio:0x" : "port:",
mmio ? port->mapbase : (unsigned long) port->iobase,
port->irq);
if (port->type == PORT_UNKNOWN) {
......
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