Merge branch 'ieee802154-for-davem-2018-02-26' of...

Merge branch 'ieee802154-for-davem-2018-02-26' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan-next

Stefan Schmidt says:

====================
pull-request: ieee802154-next 2018-02-26

An update from ieee802154 for *net-next*

Alexander corrected a setting which got lost during some 6lowpan rework
a while back and Xue Liu provided us with a new driver for the MCR20A
transceiver.

If there are any issues let me know. If not, please pull.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/ieee802154/mcr20a.txt

+* MCR20A IEEE 802.15.4 *
+
+Required properties:
+  - compatible:		should be "nxp,mcr20a"
+  - spi-max-frequency:	maximal bus speed, should be set to a frequency
+			lower than 9000000 depends sync or async operation mode
+  - reg:		the chipselect index
+  - interrupts:		the interrupt generated by the device. Non high-level
+			can occur deadlocks while handling isr.
+
+Optional properties:
+  - rst_b-gpio:		GPIO spec for the RST_B pin
+
+Example:
+
+	mcr20a@0 {
+		compatible = "nxp,mcr20a";
+		spi-max-frequency = <9000000>;
+		reg = <0>;
+		interrupts = <17 2>;
+		interrupt-parent = <&gpio>;
+		rst_b-gpio = <&gpio 27 1>
+	};

MAINTAINERS

@@ -8592,6 +8592,15 @@ S:	Maintained
 F:	Documentation/ABI/testing/sysfs-bus-iio-potentiometer-mcp4531
 F:	drivers/iio/potentiometer/mcp4531.c
 
+MCR20A IEEE-802.15.4 RADIO DRIVER
+M:	Xue Liu <liuxuenetmail@gmail.com>
+L:	linux-wpan@vger.kernel.org
+W:	https://github.com/xueliu/mcr20a-linux
+S:	Maintained
+F:	drivers/net/ieee802154/mcr20a.c
+F:	drivers/net/ieee802154/mcr20a.h
+F:	Documentation/devicetree/bindings/net/ieee802154/mcr20a.txt
+
 MEASUREMENT COMPUTING CIO-DAC IIO DRIVER
 M:	William Breathitt Gray <vilhelm.gray@gmail.com>
 L:	linux-iio@vger.kernel.org

drivers/net/ieee802154/Kconfig

@@ -104,3 +104,14 @@ config IEEE802154_CA8210_DEBUGFS
 	  exposes a debugfs node for each CA8210 instance which allows
 	  direct use of the Cascoda API, exposing the 802.15.4 MAC
 	  management entities.
+
+config IEEE802154_MCR20A
+       tristate "MCR20A transceiver driver"
+       depends on IEEE802154_DRIVERS && MAC802154
+       depends on SPI
+	---help---
+	  Say Y here to enable the MCR20A SPI 802.15.4 wireless
+	  controller.
+
+	  This driver can also be built as a module. To do so, say M here.
+	  the module will be called 'mcr20a'.

drivers/net/ieee802154/Makefile

@@ -6,3 +6,4 @@ obj-$(CONFIG_IEEE802154_CC2520) += cc2520.o
 obj-$(CONFIG_IEEE802154_ATUSB) += atusb.o
 obj-$(CONFIG_IEEE802154_ADF7242) += adf7242.o
 obj-$(CONFIG_IEEE802154_CA8210) += ca8210.o
+obj-$(CONFIG_IEEE802154_MCR20A) += mcr20a.o

net/ieee802154/6lowpan/core.c

@@ -104,6 +104,7 @@ static void lowpan_setup(struct net_device *ldev)
 	/* We need an ipv6hdr as minimum len when calling xmit */
 	ldev->hard_header_len	= sizeof(struct ipv6hdr);
 	ldev->flags		= IFF_BROADCAST | IFF_MULTICAST;
+	ldev->priv_flags	|= IFF_NO_QUEUE;
 
 	ldev->netdev_ops	= &lowpan_netdev_ops;
 	ldev->header_ops	= &lowpan_header_ops;