@@ -16,6 +16,7 @@
#include <linux/bitops.h>
#include <linux/delay.h>
#include <linux/module.h>
+#include <linux/serdev.h>
static int tty_port_default_receive_buf(struct tty_port *port,
const unsigned char *p,
@@ -125,9 +126,17 @@ struct device *tty_port_register_device_attr(struct tty_port *port,
struct device *device, void *drvdata,
const struct attribute_group **attr_grp)
{
+ struct device *ttydev;
+
tty_port_link_device(port, driver, index);
- return tty_register_device_attr(driver, index, device, drvdata,
+ ttydev = tty_register_device_attr(driver, index, device, drvdata,
attr_grp);
+ if (!ttydev)
+ return NULL;
+
+ serdev_tty_port_register(port, device, driver, index);
+ return ttydev;
+
}
EXPORT_SYMBOL_GPL(tty_port_register_device_attr);
@@ -177,6 +186,9 @@ static void tty_port_destructor(struct kref *kref)
/* check if last port ref was dropped before tty release */
if (WARN_ON(port->itty))
return;
+
+ serdev_tty_port_unregister(port);
+
if (port->xmit_buf)
free_page((unsigned long)port->xmit_buf);
tty_port_destroy(port);
Register a serdev controller with the serdev bus when a tty_port is registered. This creates the serdev controller and create's serdev devices for any DT child nodes of the tty_port's parent (i.e. the UART device). Signed-off-by: Rob Herring <robh@kernel.org> --- drivers/tty/tty_port.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) -- 2.10.1 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html