diff options
| author | Mans Rullgard <mans@mansr.com> | 2015-03-08 14:30:04 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-26 22:50:15 +0100 |
| commit | ee97d0e3f06498487671c23cad4230bf9aa5fd88 (patch) | |
| tree | 8365fe448e50f06c032c19260d9b52cce171dfab /drivers/tty/serial | |
| parent | 5ef86b74209db33c133b5f18738dd8f3189b63a1 (diff) | |
serial: 8250: allow specifying iomem size in addition to address
This adds a mapsize field to struct uart_port to be used in
conjunction with mapbase. If set, it overrides whatever value
serial8250_port_size() would otherwise report.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial')
| -rw-r--r-- | drivers/tty/serial/8250/8250_core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c index 9b2de25359d1..e0fb5f053d09 100644 --- a/drivers/tty/serial/8250/8250_core.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -2722,6 +2722,8 @@ serial8250_pm(struct uart_port *port, unsigned int state, static unsigned int serial8250_port_size(struct uart_8250_port *pt) { + if (pt->port.mapsize) + return pt->port.mapsize; if (pt->port.iotype == UPIO_AU) { if (pt->port.type == PORT_RT2880) return 0x100; @@ -3553,6 +3555,7 @@ int __init early_serial_setup(struct uart_port *port) p->iotype = port->iotype; p->flags = port->flags; p->mapbase = port->mapbase; + p->mapsize = port->mapsize; p->private_data = port->private_data; p->type = port->type; p->line = port->line; @@ -3807,6 +3810,7 @@ int serial8250_register_8250_port(struct uart_8250_port *up) uart->port.flags = up->port.flags | UPF_BOOT_AUTOCONF; uart->bugs = up->bugs; uart->port.mapbase = up->port.mapbase; + uart->port.mapsize = up->port.mapsize; uart->port.private_data = up->port.private_data; uart->port.fifosize = up->port.fifosize; uart->tx_loadsz = up->tx_loadsz; |