Merge tag 'linux-can-next-for-4.4-20150917' of git://git.kernel.org/p…

…ub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2015-09-17

this is a pull request of two patches for net-next/master.

Gerhard Bertelsmann adds support for the CAN controller found on the
Allwinner A10/A20 SoC.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/can/sun4i_can.txt

@@ -0,0 +1,36 @@
+Allwinner A10/A20 CAN controller Device Tree Bindings
+-----------------------------------------------------
+
+Required properties:
+- compatible: "allwinner,sun4i-a10-can"
+- reg: physical base address and size of the Allwinner A10/A20 CAN register map.
+- interrupts: interrupt specifier for the sole interrupt.
+- clock: phandle and clock specifier.
+
+Example
+-------
+
+SoC common .dtsi file:
+
+	can0_pins_a: can0@0 {
+		allwinner,pins = "PH20","PH21";
+		allwinner,function = "can";
+		allwinner,drive = <0>;
+		allwinner,pull = <0>;
+	};
+...
+	can0: can@01c2bc00 {
+		compatible = "allwinner,sun4i-a10-can";
+		reg = <0x01c2bc00 0x400>;
+		interrupts = <0 26 4>;
+		clocks = <&apb1_gates 4>;
+		status = "disabled";
+	};
+
+Board specific .dts file:
+
+	can0: can@01c2bc00 {
+		pinctrl-names = "default";
+		pinctrl-0 = <&can0_pins_a>;
+		status = "okay";
+	};

drivers/net/can/Kconfig

@@ -129,6 +129,16 @@ config CAN_RCAR
 	  To compile this driver as a module, choose M here: the module will
 	  be called rcar_can.
 
+config CAN_SUN4I
+	tristate "Allwinner A10 CAN controller"
+	depends on MACH_SUN4I || MACH_SUN7I || COMPILE_TEST
+	---help---
+	  Say Y here if you want to use CAN controller found on Allwinner
+	  A10/A20 SoCs.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called sun4i_can.
+
 config CAN_XILINXCAN
 	tristate "Xilinx CAN"
 	depends on ARCH_ZYNQ || ARM64 || MICROBLAZE || COMPILE_TEST

drivers/net/can/Makefile

@@ -27,6 +27,7 @@ obj-$(CONFIG_CAN_FLEXCAN)	+= flexcan.o
 obj-$(CONFIG_PCH_CAN)		+= pch_can.o
 obj-$(CONFIG_CAN_GRCAN)		+= grcan.o
 obj-$(CONFIG_CAN_RCAR)		+= rcar_can.o
+obj-$(CONFIG_CAN_SUN4I)		+= sun4i_can.o
 obj-$(CONFIG_CAN_XILINXCAN)	+= xilinx_can.o
 
 subdir-ccflags-y += -D__CHECK_ENDIAN__