Merge tag 'devicetree-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:

 - fix sparse warnings in drivers/of/

 - add more overlay unittests

 - update dtc to v1.4.4-8-g756ffc4f52f6. This adds more checks on dts
   files such as unit-address formatting and stricter character sets for
   node and property names

 - add a common DT modalias function

 - move trivial-devices.txt up and out of i2c dir

 - ARM NVIC interrupt controller binding

 - vendor prefixes for Sensirion, Dioo, Nordic, ROHM

 - correct some binding file locations

* tag 'devicetree-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (24 commits)
  of: fix sparse warnings in fdt, irq, reserved mem, and resolver code
  of: fix sparse warning in of_pci_range_parser_one
  of: fix sparse warnings in of_find_next_cache_node
  of/unittest: Missing unlocks on error
  of: fix uninitialized variable warning for overlay test
  of: fix unittest build without CONFIG_OF_OVERLAY
  of: Add unit tests for applying overlays
  of: per-file dtc compiler flags
  fpga: region: add missing DT documentation for config complete timeout
  of: Add vendor prefix for ROHM Semiconductor
  of: fix "/cpus" reference leak in of_numa_parse_cpu_nodes()
  of: Add vendor prefix for Nordic Semiconductor
  dt-bindings: arm,nvic: Binding for ARM NVIC interrupt controller on Cortex-M
  dtc: update warning settings for new bus and node/property name checks
  scripts/dtc: Update to upstream version v1.4.4-8-g756ffc4f52f6
  scripts/dtc: automate getting dtc version and log in update script
  of: Add function for generating a DT modalias with a newline
  of: fix of_device_get_modalias returned length when truncating buffers
  Documentation: devicetree: move trivial-devices out of I2C realm
  dt-bindings: add vendor prefix for Dioo
  ..

4 files changed, 167 insertions, 3 deletions

diff --git a/drivers/of/unittest-data/Makefile b/drivers/of/unittest-data/Makefile
index 1ac5cc01d627..6e00a9c69e58 100644
--- a/drivers/of/unittest-data/Makefile
+++ b/drivers/of/unittest-data/Makefile
@@ -1,7 +1,18 @@
 obj-y += testcases.dtb.o
+obj-y += overlay.dtb.o
+obj-y += overlay_bad_phandle.dtb.o
+obj-y += overlay_base.dtb.o
 
 targets += testcases.dtb testcases.dtb.S
+targets += overlay.dtb overlay.dtb.S
+targets += overlay_bad_phandle.dtb overlay_bad_phandle.dtb.S
+targets += overlay_base.dtb overlay_base.dtb.S
 
-.SECONDARY: \
-	$(obj)/testcases.dtb.S \
-	$(obj)/testcases.dtb
+.PRECIOUS: \
+	$(obj)/%.dtb.S \
+	$(obj)/%.dtb
+
+# enable creation of __symbols__ node
+DTC_FLAGS_overlay := -@
+DTC_FLAGS_overlay_bad_phandle := -@
+DTC_FLAGS_overlay_base := -@
diff --git a/drivers/of/unittest-data/overlay.dts b/drivers/of/unittest-data/overlay.dts
new file mode 100644
index 000000000000..6cd7e6a0c13e
--- /dev/null
+++ b/drivers/of/unittest-data/overlay.dts
@@ -0,0 +1,53 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+
+	fragment@0 {
+		target = <&electric_1>;
+
+		__overlay__ {
+			status = "ok";
+
+			hvac_2: hvac-large-1 {
+				compatible = "ot,hvac-large";
+				heat-range = < 40 75 >;
+				cool-range = < 65 80 >;
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&rides_1>;
+
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			status = "ok";
+
+			ride@200 {
+				compatible = "ot,ferris-wheel";
+				reg = < 0x00000200 0x100 >;
+				hvac-provider = < &hvac_2 >;
+				hvac-thermostat = < 27 32 > ;
+				hvac-zones = < 12 5 >;
+				hvac-zone-names = "operator", "snack-bar";
+				spin-controller = < &spin_ctrl_1 3 >;
+				spin-rph = < 30 >;
+				gondolas = < 16 >;
+				gondola-capacity = < 6 >;
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&lights_2>;
+
+		__overlay__ {
+			status = "ok";
+			color = "purple", "white", "red", "green";
+			rate = < 3 256 >;
+		};
+	};
+
+};
diff --git a/drivers/of/unittest-data/overlay_bad_phandle.dts b/drivers/of/unittest-data/overlay_bad_phandle.dts
new file mode 100644
index 000000000000..270ee885a623
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_bad_phandle.dts
@@ -0,0 +1,20 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+
+	fragment@0 {
+		target = <&electric_1>;
+
+		__overlay__ {
+
+			// This label should cause an error when the overlay
+			// is applied.  There is already a phandle value
+			// in the base tree for motor-1.
+			spin_ctrl_1_conflict: motor-1 {
+				accelerate = < 3 >;
+				decelerate = < 5 >;
+			};
+		};
+	};
+};
diff --git a/drivers/of/unittest-data/overlay_base.dts b/drivers/of/unittest-data/overlay_base.dts
new file mode 100644
index 000000000000..5566b27fb61a
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_base.dts
@@ -0,0 +1,80 @@
+/dts-v1/;
+/plugin/;
+
+/*
+ * Base device tree that overlays will be applied against.
+ *
+ * Do not add any properties in node "/".
+ * Do not add any nodes other than "/testcase-data-2" in node "/".
+ * Do not add anything that would result in dtc creating node "/__fixups__".
+ * dtc will create nodes "/__symbols__" and "/__local_fixups__".
+ */
+
+/ {
+	testcase-data-2 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		electric_1: substation@100 {
+			compatible = "ot,big-volts-control";
+			reg = < 0x00000100 0x100 >;
+			status = "disabled";
+
+			hvac_1: hvac-medium-1 {
+				compatible = "ot,hvac-medium";
+				heat-range = < 50 75 >;
+				cool-range = < 60 80 >;
+			};
+
+			spin_ctrl_1: motor-1 {
+				compatible = "ot,ferris-wheel-motor";
+				spin = "clockwise";
+			};
+
+			spin_ctrl_2: motor-8 {
+				compatible = "ot,roller-coaster-motor";
+			};
+		};
+
+		rides_1: fairway-1 {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			compatible = "ot,rides";
+			status = "disabled";
+			orientation = < 127 >;
+
+			ride@100 {
+				compatible = "ot,roller-coaster";
+				reg = < 0x00000100 0x100 >;
+				hvac-provider = < &hvac_1 >;
+				hvac-thermostat = < 29 > ;
+				hvac-zones = < 14 >;
+				hvac-zone-names = "operator";
+				spin-controller = < &spin_ctrl_2 5 &spin_ctrl_2 7 >;
+				spin-controller-names = "track_1", "track_2";
+				queues = < 2 >;
+			};
+		};
+
+		lights_1: lights@30000 {
+			compatible = "ot,work-lights";
+			reg = < 0x00030000 0x1000 >;
+			status = "disabled";
+		};
+
+		lights_2: lights@40000 {
+			compatible = "ot,show-lights";
+			reg = < 0x00040000 0x1000 >;
+			status = "disabled";
+			rate = < 13 138 >;
+		};
+
+		retail_1: vending@50000 {
+			reg = < 0x00050000 0x1000 >;
+			compatible = "ot,tickets";
+			status = "disabled";
+		};
+
+	};
+};
+