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greybus: uart-gb: convert over to the connection interface 

Move the uart code over to use the "new" connection interface, instead
of the "old" module interface.

Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
This commit is contained in:
Greg Kroah-Hartman 2014-10-27 17:32:34 +08:00
parent 81f4e22732
commit aed0bc6e68
3 changed files with 19 additions and 21 deletions
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8
drivers/staging/greybus/connection.c
View File

@ -285,9 +285,11 @@ int gb_connection_init(struct gb_connection *connection)
case GREYBUS_PROTOCOL_BATTERY:
ret = gb_battery_device_init(connection);
break;
case GREYBUS_PROTOCOL_UART:
ret = gb_uart_device_init(connection);
break;
case GREYBUS_PROTOCOL_CONTROL:
case GREYBUS_PROTOCOL_AP:
case GREYBUS_PROTOCOL_UART:
case GREYBUS_PROTOCOL_HID:
case GREYBUS_PROTOCOL_LED:
case GREYBUS_PROTOCOL_VENDOR:
@ -318,9 +320,11 @@ void gb_connection_exit(struct gb_connection *connection)
case GREYBUS_PROTOCOL_BATTERY:
gb_battery_device_exit(connection);
break;
case GREYBUS_PROTOCOL_UART:
gb_uart_device_exit(connection);
break;
case GREYBUS_PROTOCOL_CONTROL:
case GREYBUS_PROTOCOL_AP:
case GREYBUS_PROTOCOL_UART:
case GREYBUS_PROTOCOL_HID:
case GREYBUS_PROTOCOL_VENDOR:
default:

3
drivers/staging/greybus/greybus.h
View File

@ -275,6 +275,9 @@ void gb_battery_device_exit(struct gb_connection *connection);
int gb_gpio_controller_init(struct gb_connection *connection);
void gb_gpio_controller_exit(struct gb_connection *connection);
int gb_uart_device_init(struct gb_connection *connection);
void gb_uart_device_exit(struct gb_connection *connection);
int gb_tty_init(void);
void gb_tty_exit(void);

29
drivers/staging/greybus/uart-gb.c
View File

@ -35,7 +35,7 @@
struct gb_tty {
struct tty_port port;
struct gb_module *gmod;
struct gb_connection *connection;
u16 cport_id;
unsigned int minor;
unsigned char clocal;
@ -386,8 +386,7 @@ static const struct tty_operations gb_ops = {
};
int gb_tty_probe(struct gb_module *gmod,
const struct greybus_module_id *id)
int gb_uart_device_init(struct gb_connection *connection)
{
struct gb_tty *gb_tty;
struct device *tty_dev;
@ -401,14 +400,14 @@ int gb_tty_probe(struct gb_module *gmod,
minor = alloc_minor(gb_tty);
if (minor < 0) {
if (minor == -ENOSPC) {
dev_err(&gmod->dev, "no more free minor numbers\n");
dev_err(&connection->dev, "no more free minor numbers\n");
return -ENODEV;
}
return minor;
}
gb_tty->minor = minor;
gb_tty->gmod = gmod;
gb_tty->connection = connection;
spin_lock_init(&gb_tty->write_lock);
spin_lock_init(&gb_tty->read_lock);
init_waitqueue_head(&gb_tty->wioctl);
@ -416,10 +415,10 @@ int gb_tty_probe(struct gb_module *gmod,
/* FIXME - allocate gb buffers */
gmod->gb_tty = gb_tty;
connection->private = gb_tty;
tty_dev = tty_port_register_device(&gb_tty->port, gb_tty_driver, minor,
&gmod->dev);
&connection->dev);
if (IS_ERR(tty_dev)) {
retval = PTR_ERR(tty_dev);
goto error;
@ -427,14 +426,14 @@ int gb_tty_probe(struct gb_module *gmod,
return 0;
error:
gmod->gb_tty = NULL;
connection->private = NULL;
release_minor(gb_tty);
return retval;
}
void gb_tty_disconnect(struct gb_module *gmod)
void gb_uart_device_exit(struct gb_connection *connection)
{
struct gb_tty *gb_tty = gmod->gb_tty;
struct gb_tty *gb_tty = connection->private;
struct tty_struct *tty;
if (!gb_tty)
@ -444,7 +443,7 @@ void gb_tty_disconnect(struct gb_module *gmod)
gb_tty->disconnected = true;
wake_up_all(&gb_tty->wioctl);
gmod->gb_tty = NULL;
connection->private = NULL;
mutex_unlock(&gb_tty->mutex);
tty = tty_port_tty_get(&gb_tty->port);
@ -463,14 +462,6 @@ void gb_tty_disconnect(struct gb_module *gmod)
kfree(gb_tty);
}
#if 0
static struct greybus_driver tty_gb_driver = {
.probe = gb_tty_probe,
.disconnect = gb_tty_disconnect,
.id_table = id_table,
};
#endif
int __init gb_tty_init(void)
{
int retval = 0;