[PATCH net-next v2 2/2] rndis_host: enable power management for Telit LE310X1

[Shaoxu Liu]

Enable autosuspend support for Telit Cinterion LE310X1 RNDIS interface
by selecting a driver_info variant with manage_power callback.

This keeps power management scoped to the new Telit ID only, and avoids
changing behavior for all existing RNDIS devices.

Signed-off-by: Shaoxu Liu <shaoxul@xxxxxxxxxxx>
---
 drivers/net/usb/rndis_host.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index 46eab7bda..5e39d05a2 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -630,6 +630,17 @@ static const struct driver_info	zte_rndis_info = {
 	.tx_fixup =	rndis_tx_fixup,
 };
 
+static const struct driver_info	rndis_info_lowpower = {
+	.description =	"RNDIS device",
+	.flags =	FLAG_ETHER | FLAG_POINTTOPOINT | FLAG_FRAMING_RN | FLAG_NO_SETINT,
+	.bind =		rndis_bind,
+	.unbind =	rndis_unbind,
+	.status =	rndis_status,
+	.rx_fixup =	rndis_rx_fixup,
+	.tx_fixup =	rndis_tx_fixup,
+	.manage_power =	usbnet_manage_power,
+};
+
 /*-------------------------------------------------------------------------*/
 
 static const struct usb_device_id	products [] = {
@@ -661,7 +672,7 @@ static const struct usb_device_id	products [] = {
 	/* Telit Cinterion LE310X1 RNDIS */
 	USB_DEVICE_AND_INTERFACE_INFO(0x1bc7, 0x7030,
 				      USB_CLASS_WIRELESS_CONTROLLER, 1, 3),
-	.driver_info = (unsigned long)&rndis_info,
+	.driver_info = (unsigned long)&rndis_info_lowpower,
 }, {
 	/* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
 	USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
-- 
2.34.1