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

Pull devicetree changes from Grant Likely:
 "Here are the devicetree changes queued up for v4.1.  Nothing really
  exciting here.  Rob has another few commits for big-endian attached
  UARTs, but those will be sent in a separate merge request since they
  haven't been as thoroughly tested as this batch.

  Here are the highlights:

   - lots of unittest cleanup from Frank Rowand

   - bugfixes and updates to the of_graph code

   - tighten up of_get_mac_address() code

   - documentation updates"

* tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux:
  of/unittest: Fix of_platform_depopulate test case
  of/unittest: early return from test skips tests
  of/unittest: breadcrumbs to reduce pain of future maintainers
  of/unittest: reduce checkpatch noise - line after declarations
  of/unittest: typo in error string
  of/unittest: add const where needed
  of_net: factor out repetitive code from of_get_mac_address()
  drivers/of: Add empty ranges quirk for PA-Semi
  of: Allow selection of OF_DYNAMIC and OF_OVERLAY if OF_UNITTEST
  of: Empty node & property flag accessors when !OF
  of: Explicitly include linux/types.h in of_graph.h
  dt-bindings: brcm: rationalize Broadcom documentation naming
  of/unittest: replace 'selftest' with 'unittest'
  Documentation: rename of_selftest.txt to of_unittest.txt
  Documentation: update the of_selftest.txt
  dt: OF_UNITTEST make dependency broken
  MAINTAINERS: Pantelis Antoniou device tree overlay maintainer
  of: Add of_graph_get_port_by_id function
  of: Add for_each_endpoint_of_node helper macro
  of: Decrement refcount of previous endpoint in of_graph_get_next_endpoint

Documentation/devicetree/bindings/unittest.txt

-1) OF selftest platform device
+1) OF unittest platform device
 
-** selftest
+** unittest
 
 Required properties:
-- compatible: must be "selftest"
+- compatible: must be "unittest"
 
 All other properties are optional.
 
 Example:
-	selftest {
-		compatible = "selftest";
+	unittest {
+		compatible = "unittest";
 		status = "okay";
 	};
 
-2) OF selftest i2c adapter platform device
+2) OF unittest i2c adapter platform device
 
 ** platform device unittest adapter
 
 Required properties:
-- compatible: must be selftest-i2c-bus
+- compatible: must be unittest-i2c-bus
 
-Children nodes contain selftest i2c devices.
+Children nodes contain unittest i2c devices.
 
 Example:
-	selftest-i2c-bus {
-		compatible = "selftest-i2c-bus";
+	unittest-i2c-bus {
+		compatible = "unittest-i2c-bus";
 		status = "okay";
 	};
 
-3) OF selftest i2c device
+3) OF unittest i2c device
 
-** I2C selftest device
+** I2C unittest device
 
 Required properties:
-- compatible: must be selftest-i2c-dev
+- compatible: must be unittest-i2c-dev
 
 All other properties are optional
 
 Example:
-	selftest-i2c-dev {
-		compatible = "selftest-i2c-dev";
+	unittest-i2c-dev {
+		compatible = "unittest-i2c-dev";
 		status = "okay";
 	};
 
-4) OF selftest i2c mux device
+4) OF unittest i2c mux device
 
-** I2C selftest mux
+** I2C unittest mux
 
 Required properties:
-- compatible: must be selftest-i2c-mux
+- compatible: must be unittest-i2c-mux
 
-Children nodes contain selftest i2c bus nodes per channel.
+Children nodes contain unittest i2c bus nodes per channel.
 
 Example:
-	selftest-i2c-mux {
-		compatible = "selftest-i2c-mux";
+	unittest-i2c-mux {
+		compatible = "unittest-i2c-mux";
 		status = "okay";
 		#address-cells = <1>;
 		#size-cells = <0>;
@@ -64,7 +64,7 @@ Example:
 			#size-cells = <0>;
 			i2c-dev {
 				reg = <8>;
-				compatible = "selftest-i2c-dev";
+				compatible = "unittest-i2c-dev";
 				status = "okay";
 			};
 		};

Documentation/devicetree/of_selftest.txt → Documentation/devicetree/of_unittest.txt

-Open Firmware Device Tree Selftest
+Open Firmware Device Tree Unittest
 ----------------------------------
 
 Author: Gaurav Minocha <gaurav.minocha.os@gmail.com>
 
 1. Introduction
 
-This document explains how the test data required for executing OF selftest
+This document explains how the test data required for executing OF unittest
 is attached to the live tree dynamically, independent of the machine's
 architecture.
 
@@ -22,31 +22,31 @@ most of the device drivers in various use cases.
 
 2. Test-data
 
-The Device Tree Source file (drivers/of/testcase-data/testcases.dts) contains
+The Device Tree Source file (drivers/of/unittest-data/testcases.dts) contains
 the test data required for executing the unit tests automated in
-drivers/of/selftests.c. Currently, following Device Tree Source Include files
-(.dtsi) are included in testcase.dts:
+drivers/of/unittest.c. Currently, following Device Tree Source Include files
+(.dtsi) are included in testcases.dts:
 
-drivers/of/testcase-data/tests-interrupts.dtsi
-drivers/of/testcase-data/tests-platform.dtsi
-drivers/of/testcase-data/tests-phandle.dtsi
-drivers/of/testcase-data/tests-match.dtsi
+drivers/of/unittest-data/tests-interrupts.dtsi
+drivers/of/unittest-data/tests-platform.dtsi
+drivers/of/unittest-data/tests-phandle.dtsi
+drivers/of/unittest-data/tests-match.dtsi
 
 When the kernel is build with OF_SELFTEST enabled, then the following make rule
 
 $(obj)/%.dtb: $(src)/%.dts FORCE
 	$(call if_changed_dep, dtc)
 
-is used to compile the DT source file (testcase.dts) into a binary blob
-(testcase.dtb), also referred as flattened DT.
+is used to compile the DT source file (testcases.dts) into a binary blob
+(testcases.dtb), also referred as flattened DT.
 
 After that, using the following rule the binary blob above is wrapped as an
-assembly file (testcase.dtb.S).
+assembly file (testcases.dtb.S).
 
 $(obj)/%.dtb.S: $(obj)/%.dtb
 	$(call cmd, dt_S_dtb)
 
-The assembly file is compiled into an object file (testcase.dtb.o), and is
+The assembly file is compiled into an object file (testcases.dtb.o), and is
 linked into the kernel image.
 
 
@@ -98,7 +98,7 @@ child11 -> sibling12 -> sibling13 -> sibling14 -> null
 Figure 1: Generic structure of un-flattened device tree
 
 
-Before executing OF selftest, it is required to attach the test data to
+Before executing OF unittest, it is required to attach the test data to
 machine's device tree (if present). So, when selftest_data_add() is called,
 at first it reads the flattened device tree data linked into the kernel image
 via the following kernel symbols:

MAINTAINERS

@@ -7243,6 +7243,15 @@ F:	Documentation/devicetree/
 F:	arch/*/boot/dts/
 F:	include/dt-bindings/
 
+OPEN FIRMWARE AND DEVICE TREE OVERLAYS
+M:	Pantelis Antoniou <pantelis.antoniou@konsulko.com>
+L:	devicetree@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/dynamic-resolution-notes.txt
+F:	Documentation/devicetree/overlay-notes.txt
+F:	drivers/of/overlay.c
+F:	drivers/of/resolver.c
+
 OPENRISC ARCHITECTURE
 M:	Jonas Bonn <jonas@southpole.se>
 W:	http://openrisc.net

drivers/coresight/of_coresight.c

@@ -52,15 +52,6 @@ of_coresight_get_endpoint_device(struct device_node *endpoint)
 			       endpoint, of_dev_node_match);
 }
 
-static struct device_node *of_get_coresight_endpoint(
-		const struct device_node *parent, struct device_node *prev)
-{
-	struct device_node *node = of_graph_get_next_endpoint(parent, prev);
-
-	of_node_put(prev);
-	return node;
-}
-
 static void of_coresight_get_ports(struct device_node *node,
 				   int *nr_inport, int *nr_outport)
 {
@@ -68,7 +59,7 @@ static void of_coresight_get_ports(struct device_node *node,
 	int in = 0, out = 0;
 
 	do {
-		ep = of_get_coresight_endpoint(node, ep);
+		ep = of_graph_get_next_endpoint(node, ep);
 		if (!ep)
 			break;
 
@@ -140,7 +131,7 @@ struct coresight_platform_data *of_get_coresight_platform_data(
 		/* Iterate through each port to discover topology */
 		do {
 			/* Get a handle on a port */
-			ep = of_get_coresight_endpoint(node, ep);
+			ep = of_graph_get_next_endpoint(node, ep);
 			if (!ep)
 				break;
 

drivers/gpu/drm/imx/imx-drm-core.c

@@ -431,15 +431,6 @@ int imx_drm_encoder_parse_of(struct drm_device *drm,
 }
 EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of);
 
-static struct device_node *imx_drm_of_get_next_endpoint(
-		const struct device_node *parent, struct device_node *prev)
-{
-	struct device_node *node = of_graph_get_next_endpoint(parent, prev);
-
-	of_node_put(prev);
-	return node;
-}
-
 /*
  * @node: device tree node containing encoder input ports
  * @encoder: drm_encoder
@@ -457,7 +448,7 @@ int imx_drm_encoder_get_mux_id(struct device_node *node,
 		return -EINVAL;
 
 	do {
-		ep = imx_drm_of_get_next_endpoint(node, ep);
+		ep = of_graph_get_next_endpoint(node, ep);
 		if (!ep)
 			break;
 

drivers/gpu/drm/rcar-du/rcar_du_kms.c

@@ -206,7 +206,7 @@ static int rcar_du_encoders_init_one(struct rcar_du_device *rcdu,
 	enum rcar_du_encoder_type enc_type = RCAR_DU_ENCODER_NONE;
 	struct device_node *connector = NULL;
 	struct device_node *encoder = NULL;
-	struct device_node *prev = NULL;
+	struct device_node *ep_node = NULL;
 	struct device_node *entity_ep_node;
 	struct device_node *entity;
 	int ret;
@@ -225,11 +225,7 @@ static int rcar_du_encoders_init_one(struct rcar_du_device *rcdu,
 	entity_ep_node = of_parse_phandle(ep->local_node, "remote-endpoint", 0);
 
 	while (1) {
-		struct device_node *ep_node;
-
-		ep_node = of_graph_get_next_endpoint(entity, prev);
-		of_node_put(prev);
-		prev = ep_node;
+		ep_node = of_graph_get_next_endpoint(entity, ep_node);
 
 		if (!ep_node)
 			break;
@@ -300,7 +296,7 @@ static int rcar_du_encoders_init_one(struct rcar_du_device *rcdu,
 static int rcar_du_encoders_init(struct rcar_du_device *rcdu)
 {
 	struct device_node *np = rcdu->dev->of_node;
-	struct device_node *prev = NULL;
+	struct device_node *ep_node = NULL;
 	unsigned int num_encoders = 0;
 
 	/*
@@ -308,15 +304,12 @@ static int rcar_du_encoders_init(struct rcar_du_device *rcdu)
 	 * pipeline.
 	 */
 	while (1) {
-		struct device_node *ep_node;
 		enum rcar_du_output output;
 		struct of_endpoint ep;
 		unsigned int i;
 		int ret;
 
-		ep_node = of_graph_get_next_endpoint(np, prev);
-		of_node_put(prev);
-		prev = ep_node;
+		ep_node = of_graph_get_next_endpoint(np, ep_node);
 
 		if (ep_node == NULL)
 			break;

drivers/media/platform/am437x/am437x-vpfe.c

@@ -2504,7 +2504,6 @@ vpfe_get_pdata(struct platform_device *pdev)
 					     GFP_KERNEL);
 		pdata->asd[i]->match_type = V4L2_ASYNC_MATCH_OF;
 		pdata->asd[i]->match.of.node = rem;
-		of_node_put(endpoint);
 		of_node_put(rem);
 	}
 

drivers/media/platform/soc_camera/soc_camera.c

@@ -1694,7 +1694,6 @@ static void scan_of_host(struct soc_camera_host *ici)
 		if (!i)
 			soc_of_bind(ici, epn, ren->parent);
 
-		of_node_put(epn);
 		of_node_put(ren);
 
 		if (i) {
@@ -1702,6 +1701,8 @@ static void scan_of_host(struct soc_camera_host *ici)
 			break;
 		}
 	}
+
+	of_node_put(epn);
 }
 
 #else

drivers/of/Kconfig

@@ -34,7 +34,11 @@ config OF_PROMTREE
 # Hardly any platforms need this.  It is safe to select, but only do so if you
 # need it.
 config OF_DYNAMIC
-	bool
+	bool "Support for dynamic device trees" if OF_UNITTEST
+	help
+	  On some platforms, the device tree can be manipulated at runtime.
+	  While this option is selected automatically on such platforms, you
+	  can enable it manually to improve device tree unit test coverage.
 
 config OF_ADDRESS
 	def_bool y
@@ -87,5 +91,10 @@ config OF_OVERLAY
 	bool "Device Tree overlays"
 	select OF_DYNAMIC
 	select OF_RESOLVE
+	help
+	  Overlays are a method to dynamically modify part of the kernel's
+	  device tree with dynamically loaded data.
+	  While this option is selected automatically when needed, you can
+	  enable it manually to improve device tree unit test coverage.
 
 endmenu # OF

drivers/of/Makefile

@@ -6,8 +6,7 @@ obj-$(CONFIG_OF_PROMTREE) += pdt.o
 obj-$(CONFIG_OF_ADDRESS)  += address.o
 obj-$(CONFIG_OF_IRQ)    += irq.o
 obj-$(CONFIG_OF_NET)	+= of_net.o
-obj-$(CONFIG_OF_UNITTEST) += of_unittest.o
-of_unittest-objs := unittest.o unittest-data/testcases.dtb.o
+obj-$(CONFIG_OF_UNITTEST) += unittest.o
 obj-$(CONFIG_OF_MDIO)	+= of_mdio.o
 obj-$(CONFIG_OF_PCI)	+= of_pci.o
 obj-$(CONFIG_OF_PCI_IRQ)  += of_pci_irq.o
@@ -16,5 +15,7 @@ obj-$(CONFIG_OF_RESERVED_MEM) += of_reserved_mem.o
 obj-$(CONFIG_OF_RESOLVE)  += resolver.o
 obj-$(CONFIG_OF_OVERLAY) += overlay.o
 
+obj-$(CONFIG_OF_UNITTEST) += unittest-data/
+
 CFLAGS_fdt.o = -I$(src)/../../scripts/dtc/libfdt
 CFLAGS_fdt_address.o = -I$(src)/../../scripts/dtc/libfdt

drivers/of/base.c

@@ -2108,14 +2108,45 @@ int of_graph_parse_endpoint(const struct device_node *node,
 }
 EXPORT_SYMBOL(of_graph_parse_endpoint);
 
+/**
+ * of_graph_get_port_by_id() - get the port matching a given id
+ * @parent: pointer to the parent device node
+ * @id: id of the port
+ *
+ * Return: A 'port' node pointer with refcount incremented. The caller
+ * has to use of_node_put() on it when done.
+ */
+struct device_node *of_graph_get_port_by_id(struct device_node *parent, u32 id)
+{
+	struct device_node *node, *port;
+
+	node = of_get_child_by_name(parent, "ports");
+	if (node)
+		parent = node;
+
+	for_each_child_of_node(parent, port) {
+		u32 port_id = 0;
+
+		if (of_node_cmp(port->name, "port") != 0)
+			continue;
+		of_property_read_u32(port, "reg", &port_id);
+		if (id == port_id)
+			break;
+	}
+
+	of_node_put(node);
+
+	return port;
+}
+EXPORT_SYMBOL(of_graph_get_port_by_id);
+
 /**
  * of_graph_get_next_endpoint() - get next endpoint node
  * @parent: pointer to the parent device node
  * @prev: previous endpoint node, or NULL to get first
  *
  * Return: An 'endpoint' node pointer with refcount incremented. Refcount
- * of the passed @prev node is not decremented, the caller have to use
- * of_node_put() on it when done.
+ * of the passed @prev node is decremented.
  */
 struct device_node *of_graph_get_next_endpoint(const struct device_node *parent,
 					struct device_node *prev)
@@ -2151,12 +2182,6 @@ struct device_node *of_graph_get_next_endpoint(const struct device_node *parent,
 		if (WARN_ONCE(!port, "%s(): endpoint %s has no parent node\n",
 			      __func__, prev->full_name))
 			return NULL;
-
-		/*
-		 * Avoid dropping prev node refcount to 0 when getting the next
-		 * child below.
-		 */
-		of_node_get(prev);
 	}
 
 	while (1) {

drivers/of/of_net.c

@@ -38,6 +38,15 @@ int of_get_phy_mode(struct device_node *np)
 }
 EXPORT_SYMBOL_GPL(of_get_phy_mode);
 
+static const void *of_get_mac_addr(struct device_node *np, const char *name)
+{
+	struct property *pp = of_find_property(np, name, NULL);
+
+	if (pp && pp->length == ETH_ALEN && is_valid_ether_addr(pp->value))
+		return pp->value;
+	return NULL;
+}
+
 /**
  * Search the device tree for the best MAC address to use.  'mac-address' is
  * checked first, because that is supposed to contain to "most recent" MAC
@@ -58,20 +67,16 @@ EXPORT_SYMBOL_GPL(of_get_phy_mode);
 */
 const void *of_get_mac_address(struct device_node *np)
 {
-	struct property *pp;
+	const void *addr;
 
-	pp = of_find_property(np, "mac-address", NULL);
-	if (pp && (pp->length == 6) && is_valid_ether_addr(pp->value))
-		return pp->value;
+	addr = of_get_mac_addr(np, "mac-address");
+	if (addr)
+		return addr;
 
-	pp = of_find_property(np, "local-mac-address", NULL);
-	if (pp && (pp->length == 6) && is_valid_ether_addr(pp->value))
-		return pp->value;
+	addr = of_get_mac_addr(np, "local-mac-address");
+	if (addr)
+		return addr;
 
-	pp = of_find_property(np, "address", NULL);
-	if (pp && (pp->length == 6) && is_valid_ether_addr(pp->value))
-		return pp->value;
-
-	return NULL;
+	return of_get_mac_addr(np, "address");
 }
 EXPORT_SYMBOL(of_get_mac_address);

drivers/of/unittest-data/.gitignore

+testcases.dtb
+testcases.dtb.S

drivers/of/unittest-data/Makefile

+obj-y += testcases.dtb.o
+
+targets += testcases.dtb testcases.dtb.S
+
+.SECONDARY: \
+	$(obj)/testcases.dtb.S \
+	$(obj)/testcases.dtb

drivers/of/unittest-data/tests-overlay.dtsi

@@ -4,94 +4,94 @@ testcase-data {
 		overlay-node {
 
 			/* test bus */
-			selftestbus: test-bus {
+			unittestbus: test-bus {
 				compatible = "simple-bus";
 				#address-cells = <1>;
 				#size-cells = <0>;
 
-				selftest100: test-selftest100 {
-					compatible = "selftest";
+				unittest100: test-unittest100 {
+					compatible = "unittest";
 					status = "okay";
 					reg = <100>;
 				};
 
-				selftest101: test-selftest101 {
-					compatible = "selftest";
+				unittest101: test-unittest101 {
+					compatible = "unittest";
 					status = "disabled";
 					reg = <101>;
 				};
 
-				selftest0: test-selftest0 {
-					compatible = "selftest";
+				unittest0: test-unittest0 {
+					compatible = "unittest";
 					status = "disabled";
 					reg = <0>;
 				};
 
-				selftest1: test-selftest1 {
-					compatible = "selftest";
+				unittest1: test-unittest1 {
+					compatible = "unittest";
 					status = "okay";
 					reg = <1>;
 				};
 
-				selftest2: test-selftest2 {
-					compatible = "selftest";
+				unittest2: test-unittest2 {
+					compatible = "unittest";
 					status = "disabled";
 					reg = <2>;
 				};
 
-				selftest3: test-selftest3 {
-					compatible = "selftest";
+				unittest3: test-unittest3 {
+					compatible = "unittest";
 					status = "okay";
 					reg = <3>;
 				};
 
-				selftest5: test-selftest5 {
-					compatible = "selftest";
+				unittest5: test-unittest5 {
+					compatible = "unittest";
 					status = "disabled";
 					reg = <5>;
 				};
 
-				selftest6: test-selftest6 {
-					compatible = "selftest";
+				unittest6: test-unittest6 {
+					compatible = "unittest";
 					status = "disabled";
 					reg = <6>;
 				};
 
-				selftest7: test-selftest7 {
-					compatible = "selftest";
+				unittest7: test-unittest7 {
+					compatible = "unittest";
 					status = "disabled";
 					reg = <7>;
 				};
 
-				selftest8: test-selftest8 {
-					compatible = "selftest";
+				unittest8: test-unittest8 {
+					compatible = "unittest";
 					status = "disabled";
 					reg = <8>;
 				};
 
 				i2c-test-bus {
-					compatible = "selftest-i2c-bus";
+					compatible = "unittest-i2c-bus";
 					status = "okay";
 					reg = <50>;
 
 					#address-cells = <1>;
 					#size-cells = <0>;
 
-					test-selftest12 {
+					test-unittest12 {
 						reg = <8>;
-						compatible = "selftest-i2c-dev";
+						compatible = "unittest-i2c-dev";
 						status = "disabled";
 					};
 
-					test-selftest13 {
+					test-unittest13 {
 						reg = <9>;
-						compatible = "selftest-i2c-dev";
+						compatible = "unittest-i2c-dev";
 						status = "okay";
 					};
 
-					test-selftest14 {
+					test-unittest14 {
 						reg = <10>;
-						compatible = "selftest-i2c-mux";
+						compatible = "unittest-i2c-mux";
 						status = "okay";
 
 						#address-cells = <1>;
@@ -104,7 +104,7 @@ i2c@0 {
 
 							test-mux-dev {
 								reg = <32>;
-								compatible = "selftest-i2c-dev";
+								compatible = "unittest-i2c-dev";
 								status = "okay";
 							};
 						};
@@ -116,7 +116,7 @@ test-mux-dev {
 		/* test enable using absolute target path */
 		overlay0 {
 			fragment@0 {
-				target-path = "/testcase-data/overlay-node/test-bus/test-selftest0";
+				target-path = "/testcase-data/overlay-node/test-bus/test-unittest0";
 				__overlay__ {
 					status = "okay";
 				};
@@ -126,7 +126,7 @@ __overlay__ {
 		/* test disable using absolute target path */
 		overlay1 {
 			fragment@0 {
-				target-path = "/testcase-data/overlay-node/test-bus/test-selftest1";
+				target-path = "/testcase-data/overlay-node/test-bus/test-unittest1";
 				__overlay__ {
 					status = "disabled";
 				};
@@ -136,7 +136,7 @@ __overlay__ {
 		/* test enable using label */
 		overlay2 {
 			fragment@0 {
-				target = <&selftest2>;
+				target = <&unittest2>;
 				__overlay__ {
 					status = "okay";
 				};
@@ -146,7 +146,7 @@ __overlay__ {
 		/* test disable using label */
 		overlay3 {
 			fragment@0 {
-				target = <&selftest3>;
+				target = <&unittest3>;
 				__overlay__ {
 					status = "disabled";
 				};
@@ -156,15 +156,15 @@ __overlay__ {
 		/* test insertion of a full node */
 		overlay4 {
 			fragment@0 {
-				target = <&selftestbus>;
+				target = <&unittestbus>;
 				__overlay__ {
 
 					/* suppress DTC warning */
 					#address-cells = <1>;
 					#size-cells = <0>;
 
-					test-selftest4 {
-						compatible = "selftest";
+					test-unittest4 {
+						compatible = "unittest";
 						status = "okay";
 						reg = <4>;
 					};
@@ -175,7 +175,7 @@ test-selftest4 {
 		/* test overlay apply revert */
 		overlay5 {
 			fragment@0 {
-				target-path = "/testcase-data/overlay-node/test-bus/test-selftest5";
+				target-path = "/testcase-data/overlay-node/test-bus/test-unittest5";
 				__overlay__ {
 					status = "okay";
 				};
@@ -185,7 +185,7 @@ __overlay__ {
 		/* test overlays application and removal in sequence */
 		overlay6 {
 			fragment@0 {
-				target-path = "/testcase-data/overlay-node/test-bus/test-selftest6";
+				target-path = "/testcase-data/overlay-node/test-bus/test-unittest6";
 				__overlay__ {
 					status = "okay";
 				};
@@ -193,7 +193,7 @@ __overlay__ {
 		};
 		overlay7 {
 			fragment@0 {
-				target-path = "/testcase-data/overlay-node/test-bus/test-selftest7";
+				target-path = "/testcase-data/overlay-node/test-bus/test-unittest7";
 				__overlay__ {
 					status = "okay";
 				};
@@ -203,7 +203,7 @@ __overlay__ {
 		/* test overlays application and removal in bad sequence */
 		overlay8 {
 			fragment@0 {
-				target-path = "/testcase-data/overlay-node/test-bus/test-selftest8";
+				target-path = "/testcase-data/overlay-node/test-bus/test-unittest8";
 				__overlay__ {
 					status = "okay";
 				};
@@ -211,7 +211,7 @@ __overlay__ {
 		};
 		overlay9 {
 			fragment@0 {
-				target-path = "/testcase-data/overlay-node/test-bus/test-selftest8";
+				target-path = "/testcase-data/overlay-node/test-bus/test-unittest8";
 				__overlay__ {
 					property-foo = "bar";
 				};
@@ -227,16 +227,16 @@ __overlay__ {
 					#address-cells = <1>;
 					#size-cells = <0>;
 
-					test-selftest10 {
-						compatible = "selftest";
+					test-unittest10 {
+						compatible = "unittest";
 						status = "okay";
 						reg = <10>;
 
 						#address-cells = <1>;
 						#size-cells = <0>;
 
-						test-selftest101 {
-							compatible = "selftest";
+						test-unittest101 {
+							compatible = "unittest";
 							status = "okay";
 							reg = <1>;
 						};
@@ -255,16 +255,16 @@ __overlay__ {
 					#address-cells = <1>;
 					#size-cells = <0>;
 
-					test-selftest11 {
-						compatible = "selftest";
+					test-unittest11 {
+						compatible = "unittest";
 						status = "okay";
 						reg = <11>;
 
 						#address-cells = <1>;
 						#size-cells = <0>;
 
-						test-selftest111 {
-							compatible = "selftest";
+						test-unittest111 {
+							compatible = "unittest";
 							status = "okay";
 							reg = <1>;
 						};
@@ -277,7 +277,7 @@ test-selftest111 {
 		/* test enable using absolute target path (i2c) */
 		overlay12 {
 			fragment@0 {
-				target-path = "/testcase-data/overlay-node/test-bus/i2c-test-bus/test-selftest12";
+				target-path = "/testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12";
 				__overlay__ {
 					status = "okay";
 				};
@@ -287,7 +287,7 @@ __overlay__ {
 		/* test disable using absolute target path (i2c) */
 		overlay13 {
 			fragment@0 {
-				target-path = "/testcase-data/overlay-node/test-bus/i2c-test-bus/test-selftest13";
+				target-path = "/testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13";
 				__overlay__ {
 					status = "disabled";
 				};
@@ -301,9 +301,9 @@ fragment@0 {
 				__overlay__ {
 					#address-cells = <1>;
 					#size-cells = <0>;
-					test-selftest15 {
+					test-unittest15 {
 						reg = <11>;
-						compatible = "selftest-i2c-mux";
+						compatible = "unittest-i2c-mux";
 						status = "okay";
 
 						#address-cells = <1>;
@@ -316,7 +316,7 @@ i2c@0 {
 
 							test-mux-dev {
 								reg = <32>;
-								compatible = "selftest-i2c-dev";
+								compatible = "unittest-i2c-dev";
 								status = "okay";
 							};
 						};

drivers/of/unittest.c

@@ -25,115 +25,115 @@
 
 #include "of_private.h"
 
-static struct selftest_results {
+static struct unittest_results {
 	int passed;
 	int failed;
-} selftest_results;
+} unittest_results;
 
-#define selftest(result, fmt, ...) ({ \
+#define unittest(result, fmt, ...) ({ \
 	bool failed = !(result); \
 	if (failed) { \
-		selftest_results.failed++; \
+		unittest_results.failed++; \
 		pr_err("FAIL %s():%i " fmt, __func__, __LINE__, ##__VA_ARGS__); \
 	} else { \
-		selftest_results.passed++; \
+		unittest_results.passed++; \
 		pr_debug("pass %s():%i\n", __func__, __LINE__); \
 	} \
 	failed; \
 })
 
-static void __init of_selftest_find_node_by_name(void)
+static void __init of_unittest_find_node_by_name(void)
 {
 	struct device_node *np;
 	const char *options;
 
 	np = of_find_node_by_path("/testcase-data");
-	selftest(np && !strcmp("/testcase-data", np->full_name),
+	unittest(np && !strcmp("/testcase-data", np->full_name),
 		"find /testcase-data failed\n");
 	of_node_put(np);
 
 	/* Test if trailing '/' works */
 	np = of_find_node_by_path("/testcase-data/");
-	selftest(!np, "trailing '/' on /testcase-data/ should fail\n");
+	unittest(!np, "trailing '/' on /testcase-data/ should fail\n");
 
 	np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a");
-	selftest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", np->full_name),
+	unittest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", np->full_name),
 		"find /testcase-data/phandle-tests/consumer-a failed\n");
 	of_node_put(np);
 
 	np = of_find_node_by_path("testcase-alias");
-	selftest(np && !strcmp("/testcase-data", np->full_name),
+	unittest(np && !strcmp("/testcase-data", np->full_name),
 		"find testcase-alias failed\n");
 	of_node_put(np);
 
 	/* Test if trailing '/' works on aliases */
 	np = of_find_node_by_path("testcase-alias/");
-	selftest(!np, "trailing '/' on testcase-alias/ should fail\n");
+	unittest(!np, "trailing '/' on testcase-alias/ should fail\n");
 
 	np = of_find_node_by_path("testcase-alias/phandle-tests/consumer-a");
-	selftest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", np->full_name),
+	unittest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", np->full_name),
 		"find testcase-alias/phandle-tests/consumer-a failed\n");
 	of_node_put(np);
 
 	np = of_find_node_by_path("/testcase-data/missing-path");
-	selftest(!np, "non-existent path returned node %s\n", np->full_name);
+	unittest(!np, "non-existent path returned node %s\n", np->full_name);
 	of_node_put(np);
 
 	np = of_find_node_by_path("missing-alias");
-	selftest(!np, "non-existent alias returned node %s\n", np->full_name);
+	unittest(!np, "non-existent alias returned node %s\n", np->full_name);
 	of_node_put(np);
 
 	np = of_find_node_by_path("testcase-alias/missing-path");
-	selftest(!np, "non-existent alias with relative path returned node %s\n", np->full_name);
+	unittest(!np, "non-existent alias with relative path returned node %s\n", np->full_name);
 	of_node_put(np);
 
 	np = of_find_node_opts_by_path("/testcase-data:testoption", &options);
-	selftest(np && !strcmp("testoption", options),
+	unittest(np && !strcmp("testoption", options),
 		 "option path test failed\n");
 	of_node_put(np);
 
 	np = of_find_node_opts_by_path("/testcase-data:test/option", &options);
-	selftest(np && !strcmp("test/option", options),
+	unittest(np && !strcmp("test/option", options),
 		 "option path test, subcase #1 failed\n");
 	of_node_put(np);
 
 	np = of_find_node_opts_by_path("/testcase-data/testcase-device1:test/option", &options);
-	selftest(np && !strcmp("test/option", options),
+	unittest(np && !strcmp("test/option", options),
 		 "option path test, subcase #2 failed\n");
 	of_node_put(np);
 
 	np = of_find_node_opts_by_path("/testcase-data:testoption", NULL);
-	selftest(np, "NULL option path test failed\n");
+	unittest(np, "NULL option path test failed\n");
 	of_node_put(np);
 
 	np = of_find_node_opts_by_path("testcase-alias:testaliasoption",
 				       &options);
-	selftest(np && !strcmp("testaliasoption", options),
+	unittest(np && !strcmp("testaliasoption", options),
 		 "option alias path test failed\n");
 	of_node_put(np);
 
 	np = of_find_node_opts_by_path("testcase-alias:test/alias/option",
 				       &options);
-	selftest(np && !strcmp("test/alias/option", options),
+	unittest(np && !strcmp("test/alias/option", options),
 		 "option alias path test, subcase #1 failed\n");
 	of_node_put(np);
 
 	np = of_find_node_opts_by_path("testcase-alias:testaliasoption", NULL);
-	selftest(np, "NULL option alias path test failed\n");
+	unittest(np, "NULL option alias path test failed\n");
 	of_node_put(np);
 
 	options = "testoption";
 	np = of_find_node_opts_by_path("testcase-alias", &options);
-	selftest(np && !options, "option clearing test failed\n");
+	unittest(np && !options, "option clearing test failed\n");
 	of_node_put(np);
 
 	options = "testoption";
 	np = of_find_node_opts_by_path("/", &options);
-	selftest(np && !options, "option clearing root node test failed\n");
+	unittest(np && !options, "option clearing root node test failed\n");
 	of_node_put(np);
 }
 
-static void __init of_selftest_dynamic(void)
+static void __init of_unittest_dynamic(void)
 {
 	struct device_node *np;
 	struct property *prop;
@@ -147,7 +147,7 @@ static void __init of_selftest_dynamic(void)
 	/* Array of 4 properties for the purpose of testing */
 	prop = kzalloc(sizeof(*prop) * 4, GFP_KERNEL);
 	if (!prop) {
-		selftest(0, "kzalloc() failed\n");
+		unittest(0, "kzalloc() failed\n");
 		return;
 	}
 
@@ -155,20 +155,20 @@ static void __init of_selftest_dynamic(void)
 	prop->name = "new-property";
 	prop->value = "new-property-data";
 	prop->length = strlen(prop->value);
-	selftest(of_add_property(np, prop) == 0, "Adding a new property failed\n");
+	unittest(of_add_property(np, prop) == 0, "Adding a new property failed\n");
 
 	/* Try to add an existing property - should fail */
 	prop++;
 	prop->name = "new-property";
 	prop->value = "new-property-data-should-fail";
 	prop->length = strlen(prop->value);
-	selftest(of_add_property(np, prop) != 0,
+	unittest(of_add_property(np, prop) != 0,
 		 "Adding an existing property should have failed\n");
 
 	/* Try to modify an existing property - should pass */
 	prop->value = "modify-property-data-should-pass";
 	prop->length = strlen(prop->value);
-	selftest(of_update_property(np, prop) == 0,
+	unittest(of_update_property(np, prop) == 0,
 		 "Updating an existing property should have passed\n");
 
 	/* Try to modify non-existent property - should pass*/
@@ -176,11 +176,11 @@ static void __init of_selftest_dynamic(void)
 	prop->name = "modify-property";
 	prop->value = "modify-missing-property-data-should-pass";
 	prop->length = strlen(prop->value);
-	selftest(of_update_property(np, prop) == 0,
+	unittest(of_update_property(np, prop) == 0,
 		 "Updating a missing property should have passed\n");
 
 	/* Remove property - should pass */
-	selftest(of_remove_property(np, prop) == 0,
+	unittest(of_remove_property(np, prop) == 0,
 		 "Removing a property should have passed\n");
 
 	/* Adding very large property - should pass */
@@ -188,13 +188,13 @@ static void __init of_selftest_dynamic(void)
 	prop->name = "large-property-PAGE_SIZEx8";
 	prop->length = PAGE_SIZE * 8;
 	prop->value = kzalloc(prop->length, GFP_KERNEL);
-	selftest(prop->value != NULL, "Unable to allocate large buffer\n");
+	unittest(prop->value != NULL, "Unable to allocate large buffer\n");
 	if (prop->value)
-		selftest(of_add_property(np, prop) == 0,
+		unittest(of_add_property(np, prop) == 0,
 			 "Adding a large property should have passed\n");
 }
 
-static int __init of_selftest_check_node_linkage(struct device_node *np)
+static int __init of_unittest_check_node_linkage(struct device_node *np)
 {
 	struct device_node *child;
 	int count = 0, rc;
@@ -206,7 +206,7 @@ static int __init of_selftest_check_node_linkage(struct device_node *np)
 			return -EINVAL;
 		}
 
-		rc = of_selftest_check_node_linkage(child);
+		rc = of_unittest_check_node_linkage(child);
 		if (rc < 0)
 			return rc;
 		count += rc;
@@ -215,7 +215,7 @@ static int __init of_selftest_check_node_linkage(struct device_node *np)
 	return count + 1;
 }
 
-static void __init of_selftest_check_tree_linkage(void)
+static void __init of_unittest_check_tree_linkage(void)
 {
 	struct device_node *np;
 	int allnode_count = 0, child_count;
@@ -225,11 +225,12 @@ static void __init of_selftest_check_tree_linkage(void)
 
 	for_each_of_allnodes(np)
 		allnode_count++;
-	child_count = of_selftest_check_node_linkage(of_root);
+	child_count = of_unittest_check_node_linkage(of_root);
 
-	selftest(child_count > 0, "Device node data structure is corrupted\n");
-	selftest(child_count == allnode_count, "allnodes list size (%i) doesn't match"
-		 "sibling lists size (%i)\n", allnode_count, child_count);
+	unittest(child_count > 0, "Device node data structure is corrupted\n");
+	unittest(child_count == allnode_count,
+		 "allnodes list size (%i) doesn't match sibling lists size (%i)\n",
+		 allnode_count, child_count);
 	pr_debug("allnodes list size (%i); sibling lists size (%i)\n", allnode_count, child_count);
 }
 
@@ -239,7 +240,7 @@ struct node_hash {
 };
 
 static DEFINE_HASHTABLE(phandle_ht, 8);
-static void __init of_selftest_check_phandles(void)
+static void __init of_unittest_check_phandles(void)
 {
 	struct device_node *np;
 	struct node_hash *nh;
@@ -267,7 +268,7 @@ static void __init of_selftest_check_phandles(void)
 		hash_add(phandle_ht, &nh->node, np->phandle);
 		phandle_count++;
 	}
-	selftest(dup_count == 0, "Found %i duplicates in %i phandles\n",
+	unittest(dup_count == 0, "Found %i duplicates in %i phandles\n",
 		 dup_count, phandle_count);
 
 	/* Clean up */
@@ -277,7 +278,7 @@ static void __init of_selftest_check_phandles(void)
 	}
 }
 
-static void __init of_selftest_parse_phandle_with_args(void)
+static void __init of_unittest_parse_phandle_with_args(void)
 {
 	struct device_node *np;
 	struct of_phandle_args args;
@@ -290,10 +291,11 @@ static void __init of_selftest_parse_phandle_with_args(void)
 	}
 
 	rc = of_count_phandle_with_args(np, "phandle-list", "#phandle-cells");
-	selftest(rc == 7, "of_count_phandle_with_args() returned %i, expected 7\n", rc);
+	unittest(rc == 7, "of_count_phandle_with_args() returned %i, expected 7\n", rc);
 
 	for (i = 0; i < 8; i++) {
 		bool passed = true;
+
 		rc = of_parse_phandle_with_args(np, "phandle-list",
 						"#phandle-cells", i, &args);
 
@@ -342,44 +344,44 @@ static void __init of_selftest_parse_phandle_with_args(void)
 			passed = false;
 		}
 
-		selftest(passed, "index %i - data error on node %s rc=%i\n",
+		unittest(passed, "index %i - data error on node %s rc=%i\n",
 			 i, args.np->full_name, rc);
 	}
 
 	/* Check for missing list property */
 	rc = of_parse_phandle_with_args(np, "phandle-list-missing",
 					"#phandle-cells", 0, &args);
-	selftest(rc == -ENOENT, "expected:%i got:%i\n", -ENOENT, rc);
+	unittest(rc == -ENOENT, "expected:%i got:%i\n", -ENOENT, rc);
 	rc = of_count_phandle_with_args(np, "phandle-list-missing",
 					"#phandle-cells");
-	selftest(rc == -ENOENT, "expected:%i got:%i\n", -ENOENT, rc);
+	unittest(rc == -ENOENT, "expected:%i got:%i\n", -ENOENT, rc);
 
 	/* Check for missing cells property */
 	rc = of_parse_phandle_with_args(np, "phandle-list",
 					"#phandle-cells-missing", 0, &args);
-	selftest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
+	unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
 	rc = of_count_phandle_with_args(np, "phandle-list",
 					"#phandle-cells-missing");
-	selftest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
+	unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
 
 	/* Check for bad phandle in list */
 	rc = of_parse_phandle_with_args(np, "phandle-list-bad-phandle",
 					"#phandle-cells", 0, &args);
-	selftest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
+	unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
 	rc = of_count_phandle_with_args(np, "phandle-list-bad-phandle",
 					"#phandle-cells");
-	selftest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
+	unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
 
 	/* Check for incorrectly formed argument list */
 	rc = of_parse_phandle_with_args(np, "phandle-list-bad-args",
 					"#phandle-cells", 1, &args);
-	selftest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
+	unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
 	rc = of_count_phandle_with_args(np, "phandle-list-bad-args",
 					"#phandle-cells");
-	selftest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
+	unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
 }
 
-static void __init of_selftest_property_string(void)
+static void __init of_unittest_property_string(void)
 {
 	const char *strings[4];
 	struct device_node *np;
@@ -392,79 +394,79 @@ static void __init of_selftest_property_string(void)
 	}
 
 	rc = of_property_match_string(np, "phandle-list-names", "first");
-	selftest(rc == 0, "first expected:0 got:%i\n", rc);
+	unittest(rc == 0, "first expected:0 got:%i\n", rc);
 	rc = of_property_match_string(np, "phandle-list-names", "second");
-	selftest(rc == 1, "second expected:1 got:%i\n", rc);
+	unittest(rc == 1, "second expected:1 got:%i\n", rc);
 	rc = of_property_match_string(np, "phandle-list-names", "third");
-	selftest(rc == 2, "third expected:2 got:%i\n", rc);
+	unittest(rc == 2, "third expected:2 got:%i\n", rc);
 	rc = of_property_match_string(np, "phandle-list-names", "fourth");
-	selftest(rc == -ENODATA, "unmatched string; rc=%i\n", rc);
+	unittest(rc == -ENODATA, "unmatched string; rc=%i\n", rc);
 	rc = of_property_match_string(np, "missing-property", "blah");
-	selftest(rc == -EINVAL, "missing property; rc=%i\n", rc);
+	unittest(rc == -EINVAL, "missing property; rc=%i\n", rc);
 	rc = of_property_match_string(np, "empty-property", "blah");
-	selftest(rc == -ENODATA, "empty property; rc=%i\n", rc);
+	unittest(rc == -ENODATA, "empty property; rc=%i\n", rc);
 	rc = of_property_match_string(np, "unterminated-string", "blah");
-	selftest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc);
+	unittest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc);
 
 	/* of_property_count_strings() tests */
 	rc = of_property_count_strings(np, "string-property");
-	selftest(rc == 1, "Incorrect string count; rc=%i\n", rc);
+	unittest(rc == 1, "Incorrect string count; rc=%i\n", rc);
 	rc = of_property_count_strings(np, "phandle-list-names");
-	selftest(rc == 3, "Incorrect string count; rc=%i\n", rc);
+	unittest(rc == 3, "Incorrect string count; rc=%i\n", rc);
 	rc = of_property_count_strings(np, "unterminated-string");
-	selftest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc);
+	unittest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc);
 	rc = of_property_count_strings(np, "unterminated-string-list");
-	selftest(rc == -EILSEQ, "unterminated string array; rc=%i\n", rc);
+	unittest(rc == -EILSEQ, "unterminated string array; rc=%i\n", rc);
 
 	/* of_property_read_string_index() tests */
 	rc = of_property_read_string_index(np, "string-property", 0, strings);
-	selftest(rc == 0 && !strcmp(strings[0], "foobar"), "of_property_read_string_index() failure; rc=%i\n", rc);
+	unittest(rc == 0 && !strcmp(strings[0], "foobar"), "of_property_read_string_index() failure; rc=%i\n", rc);
 	strings[0] = NULL;
 	rc = of_property_read_string_index(np, "string-property", 1, strings);
-	selftest(rc == -ENODATA && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc);
+	unittest(rc == -ENODATA && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc);
 	rc = of_property_read_string_index(np, "phandle-list-names", 0, strings);
-	selftest(rc == 0 && !strcmp(strings[0], "first"), "of_property_read_string_index() failure; rc=%i\n", rc);
+	unittest(rc == 0 && !strcmp(strings[0], "first"), "of_property_read_string_index() failure; rc=%i\n", rc);
 	rc = of_property_read_string_index(np, "phandle-list-names", 1, strings);
-	selftest(rc == 0 && !strcmp(strings[0], "second"), "of_property_read_string_index() failure; rc=%i\n", rc);
+	unittest(rc == 0 && !strcmp(strings[0], "second"), "of_property_read_string_index() failure; rc=%i\n", rc);
 	rc = of_property_read_string_index(np, "phandle-list-names", 2, strings);
-	selftest(rc == 0 && !strcmp(strings[0], "third"), "of_property_read_string_index() failure; rc=%i\n", rc);
+	unittest(rc == 0 && !strcmp(strings[0], "third"), "of_property_read_string_index() failure; rc=%i\n", rc);
 	strings[0] = NULL;
 	rc = of_property_read_string_index(np, "phandle-list-names", 3, strings);
-	selftest(rc == -ENODATA && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc);
+	unittest(rc == -ENODATA && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc);
 	strings[0] = NULL;
 	rc = of_property_read_string_index(np, "unterminated-string", 0, strings);
-	selftest(rc == -EILSEQ && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc);
+	unittest(rc == -EILSEQ && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc);
 	rc = of_property_read_string_index(np, "unterminated-string-list", 0, strings);
-	selftest(rc == 0 && !strcmp(strings[0], "first"), "of_property_read_string_index() failure; rc=%i\n", rc);
+	unittest(rc == 0 && !strcmp(strings[0], "first"), "of_property_read_string_index() failure; rc=%i\n", rc);
 	strings[0] = NULL;
 	rc = of_property_read_string_index(np, "unterminated-string-list", 2, strings); /* should fail */
-	selftest(rc == -EILSEQ && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc);
+	unittest(rc == -EILSEQ && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc);
 	strings[1] = NULL;
 
 	/* of_property_read_string_array() tests */
 	rc = of_property_read_string_array(np, "string-property", strings, 4);
-	selftest(rc == 1, "Incorrect string count; rc=%i\n", rc);
+	unittest(rc == 1, "Incorrect string count; rc=%i\n", rc);
 	rc = of_property_read_string_array(np, "phandle-list-names", strings, 4);
-	selftest(rc == 3, "Incorrect string count; rc=%i\n", rc);
+	unittest(rc == 3, "Incorrect string count; rc=%i\n", rc);
 	rc = of_property_read_string_array(np, "unterminated-string", strings, 4);
-	selftest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc);
+	unittest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc);
 	/* -- An incorrectly formed string should cause a failure */
 	rc = of_property_read_string_array(np, "unterminated-string-list", strings, 4);
-	selftest(rc == -EILSEQ, "unterminated string array; rc=%i\n", rc);
+	unittest(rc == -EILSEQ, "unterminated string array; rc=%i\n", rc);
 	/* -- parsing the correctly formed strings should still work: */
 	strings[2] = NULL;
 	rc = of_property_read_string_array(np, "unterminated-string-list", strings, 2);
-	selftest(rc == 2 && strings[2] == NULL, "of_property_read_string_array() failure; rc=%i\n", rc);
+	unittest(rc == 2 && strings[2] == NULL, "of_property_read_string_array() failure; rc=%i\n", rc);
 	strings[1] = NULL;
 	rc = of_property_read_string_array(np, "phandle-list-names", strings, 1);
-	selftest(rc == 1 && strings[1] == NULL, "Overwrote end of string array; rc=%i, str='%s'\n", rc, strings[1]);
+	unittest(rc == 1 && strings[1] == NULL, "Overwrote end of string array; rc=%i, str='%s'\n", rc, strings[1]);
 }
 
 #define propcmp(p1, p2) (((p1)->length == (p2)->length) && \
 			(p1)->value && (p2)->value && \
 			!memcmp((p1)->value, (p2)->value, (p1)->length) && \
 			!strcmp((p1)->name, (p2)->name))
-static void __init of_selftest_property_copy(void)
+static void __init of_unittest_property_copy(void)
 {
 #ifdef CONFIG_OF_DYNAMIC
 	struct property p1 = { .name = "p1", .length = 0, .value = "" };
@@ -472,20 +474,20 @@ static void __init of_selftest_property_copy(void)
 	struct property *new;
 
 	new = __of_prop_dup(&p1, GFP_KERNEL);
-	selftest(new && propcmp(&p1, new), "empty property didn't copy correctly\n");
+	unittest(new && propcmp(&p1, new), "empty property didn't copy correctly\n");
 	kfree(new->value);
 	kfree(new->name);
 	kfree(new);
 
 	new = __of_prop_dup(&p2, GFP_KERNEL);
-	selftest(new && propcmp(&p2, new), "non-empty property didn't copy correctly\n");
+	unittest(new && propcmp(&p2, new), "non-empty property didn't copy correctly\n");
 	kfree(new->value);
 	kfree(new->name);
 	kfree(new);
 #endif
 }
 
-static void __init of_selftest_changeset(void)
+static void __init of_unittest_changeset(void)
 {
 #ifdef CONFIG_OF_DYNAMIC
 	struct property *ppadd, padd = { .name = "prop-add", .length = 0, .value = "" };
@@ -495,51 +497,51 @@ static void __init of_selftest_changeset(void)
 	struct of_changeset chgset;
 
 	n1 = __of_node_dup(NULL, "/testcase-data/changeset/n1");
-	selftest(n1, "testcase setup failure\n");
+	unittest(n1, "testcase setup failure\n");
 	n2 = __of_node_dup(NULL, "/testcase-data/changeset/n2");
-	selftest(n2, "testcase setup failure\n");
+	unittest(n2, "testcase setup failure\n");
 	n21 = __of_node_dup(NULL, "%s/%s", "/testcase-data/changeset/n2", "n21");
-	selftest(n21, "testcase setup failure %p\n", n21);
+	unittest(n21, "testcase setup failure %p\n", n21);
 	nremove = of_find_node_by_path("/testcase-data/changeset/node-remove");
-	selftest(nremove, "testcase setup failure\n");
+	unittest(nremove, "testcase setup failure\n");
 	ppadd = __of_prop_dup(&padd, GFP_KERNEL);
-	selftest(ppadd, "testcase setup failure\n");
+	unittest(ppadd, "testcase setup failure\n");
 	ppupdate = __of_prop_dup(&pupdate, GFP_KERNEL);
-	selftest(ppupdate, "testcase setup failure\n");
+	unittest(ppupdate, "testcase setup failure\n");
 	parent = nremove->parent;
 	n1->parent = parent;
 	n2->parent = parent;
 	n21->parent = n2;
 	n2->child = n21;
 	ppremove = of_find_property(parent, "prop-remove", NULL);
-	selftest(ppremove, "failed to find removal prop");
+	unittest(ppremove, "failed to find removal prop");
 
 	of_changeset_init(&chgset);
-	selftest(!of_changeset_attach_node(&chgset, n1), "fail attach n1\n");
-	selftest(!of_changeset_attach_node(&chgset, n2), "fail attach n2\n");
-	selftest(!of_changeset_detach_node(&chgset, nremove), "fail remove node\n");
-	selftest(!of_changeset_attach_node(&chgset, n21), "fail attach n21\n");
-	selftest(!of_changeset_add_property(&chgset, parent, ppadd), "fail add prop\n");
-	selftest(!of_changeset_update_property(&chgset, parent, ppupdate), "fail update prop\n");
-	selftest(!of_changeset_remove_property(&chgset, parent, ppremove), "fail remove prop\n");
+	unittest(!of_changeset_attach_node(&chgset, n1), "fail attach n1\n");
+	unittest(!of_changeset_attach_node(&chgset, n2), "fail attach n2\n");
+	unittest(!of_changeset_detach_node(&chgset, nremove), "fail remove node\n");
+	unittest(!of_changeset_attach_node(&chgset, n21), "fail attach n21\n");
+	unittest(!of_changeset_add_property(&chgset, parent, ppadd), "fail add prop\n");
+	unittest(!of_changeset_update_property(&chgset, parent, ppupdate), "fail update prop\n");
+	unittest(!of_changeset_remove_property(&chgset, parent, ppremove), "fail remove prop\n");
 	mutex_lock(&of_mutex);
-	selftest(!of_changeset_apply(&chgset), "apply failed\n");
+	unittest(!of_changeset_apply(&chgset), "apply failed\n");
 	mutex_unlock(&of_mutex);
 
 	/* Make sure node names are constructed correctly */
-	selftest((np = of_find_node_by_path("/testcase-data/changeset/n2/n21")),
+	unittest((np = of_find_node_by_path("/testcase-data/changeset/n2/n21")),
 		 "'%s' not added\n", n21->full_name);
 	of_node_put(np);
 
 	mutex_lock(&of_mutex);
-	selftest(!of_changeset_revert(&chgset), "revert failed\n");
+	unittest(!of_changeset_revert(&chgset), "revert failed\n");
 	mutex_unlock(&of_mutex);
 
 	of_changeset_destroy(&chgset);
 #endif
 }
 
-static void __init of_selftest_parse_interrupts(void)
+static void __init of_unittest_parse_interrupts(void)
 {
 	struct device_node *np;
 	struct of_phandle_args args;
@@ -553,6 +555,7 @@ static void __init of_selftest_parse_interrupts(void)
 
 	for (i = 0; i < 4; i++) {
 		bool passed = true;
+
 		args.args_count = 0;
 		rc = of_irq_parse_one(np, i, &args);
 
@@ -560,7 +563,7 @@ static void __init of_selftest_parse_interrupts(void)
 		passed &= (args.args_count == 1);
 		passed &= (args.args[0] == (i + 1));
 
-		selftest(passed, "index %i - data error on node %s rc=%i\n",
+		unittest(passed, "index %i - data error on node %s rc=%i\n",
 			 i, args.np->full_name, rc);
 	}
 	of_node_put(np);
@@ -573,6 +576,7 @@ static void __init of_selftest_parse_interrupts(void)
 
 	for (i = 0; i < 4; i++) {
 		bool passed = true;
+
 		args.args_count = 0;
 		rc = of_irq_parse_one(np, i, &args);
 
@@ -605,13 +609,13 @@ static void __init of_selftest_parse_interrupts(void)
 		default:
 			passed = false;
 		}
-		selftest(passed, "index %i - data error on node %s rc=%i\n",
+		unittest(passed, "index %i - data error on node %s rc=%i\n",
 			 i, args.np->full_name, rc);
 	}
 	of_node_put(np);
 }
 
-static void __init of_selftest_parse_interrupts_extended(void)
+static void __init of_unittest_parse_interrupts_extended(void)
 {
 	struct device_node *np;
 	struct of_phandle_args args;
@@ -625,6 +629,7 @@ static void __init of_selftest_parse_interrupts_extended(void)
 
 	for (i = 0; i < 7; i++) {
 		bool passed = true;
+
 		rc = of_irq_parse_one(np, i, &args);
 
 		/* Test the values from tests-phandle.dtsi */
@@ -674,13 +679,13 @@ static void __init of_selftest_parse_interrupts_extended(void)
 			passed = false;
 		}
 
-		selftest(passed, "index %i - data error on node %s rc=%i\n",
+		unittest(passed, "index %i - data error on node %s rc=%i\n",
 			 i, args.np->full_name, rc);
 	}
 	of_node_put(np);
 }
 
-static struct of_device_id match_node_table[] = {
+static const struct of_device_id match_node_table[] = {
 	{ .data = "A", .name = "name0", }, /* Name alone is lowest priority */
 	{ .data = "B", .type = "type1", }, /* followed by type alone */
 
@@ -715,7 +720,7 @@ static struct {
 	{ .path = "/testcase-data/match-node/name9", .data = "K", },
 };
 
-static void __init of_selftest_match_node(void)
+static void __init of_unittest_match_node(void)
 {
 	struct device_node *np;
 	const struct of_device_id *match;
@@ -724,37 +729,37 @@ static void __init of_selftest_match_node(void)
 	for (i = 0; i < ARRAY_SIZE(match_node_tests); i++) {
 		np = of_find_node_by_path(match_node_tests[i].path);
 		if (!np) {
-			selftest(0, "missing testcase node %s\n",
+			unittest(0, "missing testcase node %s\n",
 				match_node_tests[i].path);
 			continue;
 		}
 
 		match = of_match_node(match_node_table, np);
 		if (!match) {
-			selftest(0, "%s didn't match anything\n",
+			unittest(0, "%s didn't match anything\n",
 				match_node_tests[i].path);
 			continue;
 		}
 
 		if (strcmp(match->data, match_node_tests[i].data) != 0) {
-			selftest(0, "%s got wrong match. expected %s, got %s\n",
+			unittest(0, "%s got wrong match. expected %s, got %s\n",
 				match_node_tests[i].path, match_node_tests[i].data,
 				(const char *)match->data);
 			continue;
 		}
-		selftest(1, "passed");
+		unittest(1, "passed");
 	}
 }
 
-struct device test_bus = {
-	.init_name = "unittest-bus",
+static const struct platform_device_info test_bus_info = {
+	.name = "unittest-bus",
 };
-static void __init of_selftest_platform_populate(void)
+static void __init of_unittest_platform_populate(void)
 {
 	int irq, rc;
 	struct device_node *np, *child, *grandchild;
-	struct platform_device *pdev;
-	struct of_device_id match[] = {
+	struct platform_device *pdev, *test_bus;
+	const struct of_device_id match[] = {
 		{ .compatible = "test-device", },
 		{}
 	};
@@ -765,43 +770,47 @@ static void __init of_selftest_platform_populate(void)
 	/* Test that a missing irq domain returns -EPROBE_DEFER */
 	np = of_find_node_by_path("/testcase-data/testcase-device1");
 	pdev = of_find_device_by_node(np);
-	selftest(pdev, "device 1 creation failed\n");
+	unittest(pdev, "device 1 creation failed\n");
 
 	irq = platform_get_irq(pdev, 0);
-	selftest(irq == -EPROBE_DEFER, "device deferred probe failed - %d\n", irq);
+	unittest(irq == -EPROBE_DEFER, "device deferred probe failed - %d\n", irq);
 
 	/* Test that a parsing failure does not return -EPROBE_DEFER */
 	np = of_find_node_by_path("/testcase-data/testcase-device2");
 	pdev = of_find_device_by_node(np);
-	selftest(pdev, "device 2 creation failed\n");
+	unittest(pdev, "device 2 creation failed\n");
 	irq = platform_get_irq(pdev, 0);
-	selftest(irq < 0 && irq != -EPROBE_DEFER, "device parsing error failed - %d\n", irq);
+	unittest(irq < 0 && irq != -EPROBE_DEFER, "device parsing error failed - %d\n", irq);
 
-	if (selftest(np = of_find_node_by_path("/testcase-data/platform-tests"),
-		     "No testcase data in device tree\n"));
+	np = of_find_node_by_path("/testcase-data/platform-tests");
+	unittest(np, "No testcase data in device tree\n");
+	if (!np)
 		return;
 
-	if (selftest(!(rc = device_register(&test_bus)),
-		     "testbus registration failed; rc=%i\n", rc));
+	test_bus = platform_device_register_full(&test_bus_info);
+	rc = PTR_ERR_OR_ZERO(test_bus);
+	unittest(!rc, "testbus registration failed; rc=%i\n", rc);
+	if (rc)
 		return;
+	test_bus->dev.of_node = np;
 
+	of_platform_populate(np, match, NULL, &test_bus->dev);
 	for_each_child_of_node(np, child) {
-		of_platform_populate(child, match, NULL, &test_bus);
 		for_each_child_of_node(child, grandchild)
-			selftest(of_find_device_by_node(grandchild),
+			unittest(of_find_device_by_node(grandchild),
 				 "Could not create device for node '%s'\n",
 				 grandchild->name);
 	}
 
-	of_platform_depopulate(&test_bus);
+	of_platform_depopulate(&test_bus->dev);
 	for_each_child_of_node(np, child) {
 		for_each_child_of_node(child, grandchild)
-			selftest(!of_find_device_by_node(grandchild),
+			unittest(!of_find_device_by_node(grandchild),
 				 "device didn't get destroyed '%s'\n",
 				 grandchild->name);
 	}
 
-	device_unregister(&test_bus);
+	platform_device_unregister(test_bus);
 	of_node_put(np);
 }
 
@@ -866,13 +875,17 @@ static int attach_node_and_children(struct device_node *np)
 }
 
 /**
- *	selftest_data_add - Reads, copies data from
+ *	unittest_data_add - Reads, copies data from
  *	linked tree and attaches it to the live tree
  */
-static int __init selftest_data_add(void)
+static int __init unittest_data_add(void)
 {
-	void *selftest_data;
-	struct device_node *selftest_data_node, *np;
+	void *unittest_data;
+	struct device_node *unittest_data_node, *np;
+	/*
+	 * __dtb_testcases_begin[] and __dtb_testcases_end[] are magically
+	 * created by cmd_dt_S_dtb in scripts/Makefile.lib
+	 */
 	extern uint8_t __dtb_testcases_begin[];
 	extern uint8_t __dtb_testcases_end[];
 	const int size = __dtb_testcases_end - __dtb_testcases_begin;
@@ -885,27 +898,27 @@ static int __init selftest_data_add(void)
 	}
 
 	/* creating copy */
-	selftest_data = kmemdup(__dtb_testcases_begin, size, GFP_KERNEL);
+	unittest_data = kmemdup(__dtb_testcases_begin, size, GFP_KERNEL);
 
-	if (!selftest_data) {
-		pr_warn("%s: Failed to allocate memory for selftest_data; "
+	if (!unittest_data) {
+		pr_warn("%s: Failed to allocate memory for unittest_data; "
 			"not running tests\n", __func__);
 		return -ENOMEM;
 	}
-	of_fdt_unflatten_tree(selftest_data, &selftest_data_node);
-	if (!selftest_data_node) {
+	of_fdt_unflatten_tree(unittest_data, &unittest_data_node);
+	if (!unittest_data_node) {
 		pr_warn("%s: No tree to attach; not running tests\n", __func__);
 		return -ENODATA;
 	}
-	of_node_set_flag(selftest_data_node, OF_DETACHED);
-	rc = of_resolve_phandles(selftest_data_node);
+	of_node_set_flag(unittest_data_node, OF_DETACHED);
+	rc = of_resolve_phandles(unittest_data_node);
 	if (rc) {
 		pr_err("%s: Failed to resolve phandles (rc=%i)\n", __func__, rc);
 		return -EINVAL;
 	}
 
 	if (!of_root) {
-		of_root = selftest_data_node;
+		of_root = unittest_data_node;
 		for_each_of_allnodes(np)
 			__of_attach_node_sysfs(np);
 		of_aliases = of_find_node_by_path("/aliases");
@@ -914,9 +927,10 @@ static int __init selftest_data_add(void)
 	}
 
 	/* attach the sub-tree to live tree */
-	np = selftest_data_node->child;
+	np = unittest_data_node->child;
 	while (np) {
 		struct device_node *next = np->sibling;
+
 		np->parent = of_root;
 		attach_node_and_children(np);
 		np = next;
@@ -926,7 +940,7 @@ static int __init selftest_data_add(void)
 
 #ifdef CONFIG_OF_OVERLAY
 
-static int selftest_probe(struct platform_device *pdev)
+static int unittest_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct device_node *np = dev->of_node;
@@ -944,7 +958,7 @@ static int selftest_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int selftest_remove(struct platform_device *pdev)
+static int unittest_remove(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct device_node *np = dev->of_node;
@@ -953,18 +967,18 @@ static int selftest_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id selftest_match[] = {
-	{ .compatible = "selftest", },
+static const struct of_device_id unittest_match[] = {
+	{ .compatible = "unittest", },
 	{},
 };
 
-static struct platform_driver selftest_driver = {
-	.probe			= selftest_probe,
-	.remove			= selftest_remove,
+static struct platform_driver unittest_driver = {
+	.probe			= unittest_probe,
+	.remove			= unittest_remove,
 	.driver = {
-		.name		= "selftest",
+		.name		= "unittest",
 		.owner		= THIS_MODULE,
-		.of_match_table	= of_match_ptr(selftest_match),
+		.of_match_table	= of_match_ptr(unittest_match),
 	},
 };
 
@@ -1046,7 +1060,7 @@ static int of_path_device_type_exists(const char *path,
 	return 0;
 }
 
-static const char *selftest_path(int nr, enum overlay_type ovtype)
+static const char *unittest_path(int nr, enum overlay_type ovtype)
 {
 	const char *base;
 	static char buf[256];
@@ -1062,16 +1076,16 @@ static const char *selftest_path(int nr, enum overlay_type ovtype)
 		buf[0] = '\0';
 		return buf;
 	}
-	snprintf(buf, sizeof(buf) - 1, "%s/test-selftest%d", base, nr);
+	snprintf(buf, sizeof(buf) - 1, "%s/test-unittest%d", base, nr);
 	buf[sizeof(buf) - 1] = '\0';
 	return buf;
 }
 
-static int of_selftest_device_exists(int selftest_nr, enum overlay_type ovtype)
+static int of_unittest_device_exists(int unittest_nr, enum overlay_type ovtype)
 {
 	const char *path;
 
-	path = selftest_path(selftest_nr, ovtype);
+	path = unittest_path(unittest_nr, ovtype);
 
 	switch (ovtype) {
 	case PDEV_OVERLAY:
@@ -1095,7 +1109,7 @@ static const char *overlay_path(int nr)
 
 static const char *bus_path = "/testcase-data/overlay-node/test-bus";
 
-static int of_selftest_apply_overlay(int selftest_nr, int overlay_nr,
+static int of_unittest_apply_overlay(int unittest_nr, int overlay_nr,
 		int *overlay_id)
 {
 	struct device_node *np = NULL;
@@ -1103,7 +1117,7 @@ static int of_selftest_apply_overlay(int selftest_nr, int overlay_nr,
 
 	np = of_find_node_by_path(overlay_path(overlay_nr));
 	if (np == NULL) {
-		selftest(0, "could not find overlay node @\"%s\"\n",
+		unittest(0, "could not find overlay node @\"%s\"\n",
 				overlay_path(overlay_nr));
 		ret = -EINVAL;
 		goto out;
@@ -1111,7 +1125,7 @@ static int of_selftest_apply_overlay(int selftest_nr, int overlay_nr,
 
 	ret = of_overlay_create(np);
 	if (ret < 0) {
-		selftest(0, "could not create overlay from \"%s\"\n",
+		unittest(0, "could not create overlay from \"%s\"\n",
 				overlay_path(overlay_nr));
 		goto out;
 	}
@@ -1129,31 +1143,31 @@ static int of_selftest_apply_overlay(int selftest_nr, int overlay_nr,
 }
 
 /* apply an overlay while checking before and after states */
-static int of_selftest_apply_overlay_check(int overlay_nr, int selftest_nr,
+static int of_unittest_apply_overlay_check(int overlay_nr, int unittest_nr,
 		int before, int after, enum overlay_type ovtype)
 {
 	int ret;
 
-	/* selftest device must not be in before state */
-	if (of_selftest_device_exists(selftest_nr, ovtype) != before) {
-		selftest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
+	/* unittest device must not be in before state */
+	if (of_unittest_device_exists(unittest_nr, ovtype) != before) {
+		unittest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
 				overlay_path(overlay_nr),
-				selftest_path(selftest_nr, ovtype),
+				unittest_path(unittest_nr, ovtype),
 				!before ? "enabled" : "disabled");
 		return -EINVAL;
 	}
 
-	ret = of_selftest_apply_overlay(overlay_nr, selftest_nr, NULL);
+	ret = of_unittest_apply_overlay(overlay_nr, unittest_nr, NULL);
 	if (ret != 0) {
-		/* of_selftest_apply_overlay already called selftest() */
+		/* of_unittest_apply_overlay already called unittest() */
 		return ret;
 	}
 
-	/* selftest device must be to set to after state */
-	if (of_selftest_device_exists(selftest_nr, ovtype) != after) {
-		selftest(0, "overlay @\"%s\" failed to create @\"%s\" %s\n",
+	/* unittest device must be to set to after state */
+	if (of_unittest_device_exists(unittest_nr, ovtype) != after) {
+		unittest(0, "overlay @\"%s\" failed to create @\"%s\" %s\n",
 				overlay_path(overlay_nr),
-				selftest_path(selftest_nr, ovtype),
+				unittest_path(unittest_nr, ovtype),
 				!after ? "enabled" : "disabled");
 		return -EINVAL;
 	}
@@ -1162,50 +1176,50 @@ static int of_selftest_apply_overlay_check(int overlay_nr, int selftest_nr,
 }
 
 /* apply an overlay and then revert it while checking before, after states */
-static int of_selftest_apply_revert_overlay_check(int overlay_nr,
-		int selftest_nr, int before, int after,
+static int of_unittest_apply_revert_overlay_check(int overlay_nr,
+		int unittest_nr, int before, int after,
 		enum overlay_type ovtype)
 {
 	int ret, ov_id;
 
-	/* selftest device must be in before state */
-	if (of_selftest_device_exists(selftest_nr, ovtype) != before) {
-		selftest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
+	/* unittest device must be in before state */
+	if (of_unittest_device_exists(unittest_nr, ovtype) != before) {
+		unittest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
 				overlay_path(overlay_nr),
-				selftest_path(selftest_nr, ovtype),
+				unittest_path(unittest_nr, ovtype),
 				!before ? "enabled" : "disabled");
 		return -EINVAL;
 	}
 
 	/* apply the overlay */
-	ret = of_selftest_apply_overlay(overlay_nr, selftest_nr, &ov_id);
+	ret = of_unittest_apply_overlay(overlay_nr, unittest_nr, &ov_id);
 	if (ret != 0) {
-		/* of_selftest_apply_overlay already called selftest() */
+		/* of_unittest_apply_overlay already called unittest() */
 		return ret;
 	}
 
-	/* selftest device must be in after state */
-	if (of_selftest_device_exists(selftest_nr, ovtype) != after) {
-		selftest(0, "overlay @\"%s\" failed to create @\"%s\" %s\n",
+	/* unittest device must be in after state */
+	if (of_unittest_device_exists(unittest_nr, ovtype) != after) {
+		unittest(0, "overlay @\"%s\" failed to create @\"%s\" %s\n",
 				overlay_path(overlay_nr),
-				selftest_path(selftest_nr, ovtype),
+				unittest_path(unittest_nr, ovtype),
 				!after ? "enabled" : "disabled");
 		return -EINVAL;
 	}
 
 	ret = of_overlay_destroy(ov_id);
 	if (ret != 0) {
-		selftest(0, "overlay @\"%s\" failed to be destroyed @\"%s\"\n",
+		unittest(0, "overlay @\"%s\" failed to be destroyed @\"%s\"\n",
 				overlay_path(overlay_nr),
-				selftest_path(selftest_nr, ovtype));
+				unittest_path(unittest_nr, ovtype));
 		return ret;
 	}
 
-	/* selftest device must be again in before state */
-	if (of_selftest_device_exists(selftest_nr, PDEV_OVERLAY) != before) {
-		selftest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
+	/* unittest device must be again in before state */
+	if (of_unittest_device_exists(unittest_nr, PDEV_OVERLAY) != before) {
+		unittest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
 				overlay_path(overlay_nr),
-				selftest_path(selftest_nr, ovtype),
+				unittest_path(unittest_nr, ovtype),
 				!before ? "enabled" : "disabled");
 		return -EINVAL;
 	}
@@ -1214,98 +1228,98 @@ static int of_selftest_apply_revert_overlay_check(int overlay_nr,
 }
 
 /* test activation of device */
-static void of_selftest_overlay_0(void)
+static void of_unittest_overlay_0(void)
 {
 	int ret;
 
 	/* device should enable */
-	ret = of_selftest_apply_overlay_check(0, 0, 0, 1, PDEV_OVERLAY);
+	ret = of_unittest_apply_overlay_check(0, 0, 0, 1, PDEV_OVERLAY);
 	if (ret != 0)
 		return;
 
-	selftest(1, "overlay test %d passed\n", 0);
+	unittest(1, "overlay test %d passed\n", 0);
 }
 
 /* test deactivation of device */
-static void of_selftest_overlay_1(void)
+static void of_unittest_overlay_1(void)
 {
 	int ret;
 
 	/* device should disable */
-	ret = of_selftest_apply_overlay_check(1, 1, 1, 0, PDEV_OVERLAY);
+	ret = of_unittest_apply_overlay_check(1, 1, 1, 0, PDEV_OVERLAY);
 	if (ret != 0)
 		return;
 
-	selftest(1, "overlay test %d passed\n", 1);
+	unittest(1, "overlay test %d passed\n", 1);
 }
 
 /* test activation of device */
-static void of_selftest_overlay_2(void)
+static void of_unittest_overlay_2(void)
 {
 	int ret;
 
 	/* device should enable */
-	ret = of_selftest_apply_overlay_check(2, 2, 0, 1, PDEV_OVERLAY);
+	ret = of_unittest_apply_overlay_check(2, 2, 0, 1, PDEV_OVERLAY);
 	if (ret != 0)
 		return;
 
-	selftest(1, "overlay test %d passed\n", 2);
+	unittest(1, "overlay test %d passed\n", 2);
 }
 
 /* test deactivation of device */
-static void of_selftest_overlay_3(void)
+static void of_unittest_overlay_3(void)
 {
 	int ret;
 
 	/* device should disable */
-	ret = of_selftest_apply_overlay_check(3, 3, 1, 0, PDEV_OVERLAY);
+	ret = of_unittest_apply_overlay_check(3, 3, 1, 0, PDEV_OVERLAY);
 	if (ret != 0)
 		return;
 
-	selftest(1, "overlay test %d passed\n", 3);
+	unittest(1, "overlay test %d passed\n", 3);
 }
 
 /* test activation of a full device node */
-static void of_selftest_overlay_4(void)
+static void of_unittest_overlay_4(void)
 {
 	int ret;
 
 	/* device should disable */
-	ret = of_selftest_apply_overlay_check(4, 4, 0, 1, PDEV_OVERLAY);
+	ret = of_unittest_apply_overlay_check(4, 4, 0, 1, PDEV_OVERLAY);
 	if (ret != 0)
 		return;
 
-	selftest(1, "overlay test %d passed\n", 4);
+	unittest(1, "overlay test %d passed\n", 4);
 }
 
 /* test overlay apply/revert sequence */
-static void of_selftest_overlay_5(void)
+static void of_unittest_overlay_5(void)
 {
 	int ret;
 
 	/* device should disable */
-	ret = of_selftest_apply_revert_overlay_check(5, 5, 0, 1, PDEV_OVERLAY);
+	ret = of_unittest_apply_revert_overlay_check(5, 5, 0, 1, PDEV_OVERLAY);
 	if (ret != 0)
 		return;
 
-	selftest(1, "overlay test %d passed\n", 5);
+	unittest(1, "overlay test %d passed\n", 5);
 }
 
 /* test overlay application in sequence */
-static void of_selftest_overlay_6(void)
+static void of_unittest_overlay_6(void)
 {
 	struct device_node *np;
 	int ret, i, ov_id[2];
-	int overlay_nr = 6, selftest_nr = 6;
+	int overlay_nr = 6, unittest_nr = 6;
 	int before = 0, after = 1;
 
-	/* selftest device must be in before state */
+	/* unittest device must be in before state */
 	for (i = 0; i < 2; i++) {
-		if (of_selftest_device_exists(selftest_nr + i, PDEV_OVERLAY)
+		if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY)
 				!= before) {
-			selftest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
+			unittest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
 					overlay_path(overlay_nr + i),
-					selftest_path(selftest_nr + i,
+					unittest_path(unittest_nr + i,
 						PDEV_OVERLAY),
 					!before ? "enabled" : "disabled");
 			return;
@@ -1317,14 +1331,14 @@ static void of_selftest_overlay_6(void)
 
 		np = of_find_node_by_path(overlay_path(overlay_nr + i));
 		if (np == NULL) {
-			selftest(0, "could not find overlay node @\"%s\"\n",
+			unittest(0, "could not find overlay node @\"%s\"\n",
 					overlay_path(overlay_nr + i));
 			return;
 		}
 
 		ret = of_overlay_create(np);
 		if (ret < 0)  {
-			selftest(0, "could not create overlay from \"%s\"\n",
+			unittest(0, "could not create overlay from \"%s\"\n",
 					overlay_path(overlay_nr + i));
 			return;
 		}
@@ -1332,12 +1346,12 @@ static void of_selftest_overlay_6(void)
 	}
 
 	for (i = 0; i < 2; i++) {
-		/* selftest device must be in after state */
-		if (of_selftest_device_exists(selftest_nr + i, PDEV_OVERLAY)
+		/* unittest device must be in after state */
+		if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY)
 				!= after) {
-			selftest(0, "overlay @\"%s\" failed @\"%s\" %s\n",
+			unittest(0, "overlay @\"%s\" failed @\"%s\" %s\n",
 					overlay_path(overlay_nr + i),
-					selftest_path(selftest_nr + i,
+					unittest_path(unittest_nr + i,
 						PDEV_OVERLAY),
 					!after ? "enabled" : "disabled");
 			return;
@@ -1347,36 +1361,36 @@ static void of_selftest_overlay_6(void)
 	for (i = 1; i >= 0; i--) {
 		ret = of_overlay_destroy(ov_id[i]);
 		if (ret != 0) {
-			selftest(0, "overlay @\"%s\" failed destroy @\"%s\"\n",
+			unittest(0, "overlay @\"%s\" failed destroy @\"%s\"\n",
 					overlay_path(overlay_nr + i),
-					selftest_path(selftest_nr + i,
+					unittest_path(unittest_nr + i,
 						PDEV_OVERLAY));
 			return;
 		}
 	}
 
 	for (i = 0; i < 2; i++) {
-		/* selftest device must be again in before state */
-		if (of_selftest_device_exists(selftest_nr + i, PDEV_OVERLAY)
+		/* unittest device must be again in before state */
+		if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY)
 				!= before) {
-			selftest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
+			unittest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
 					overlay_path(overlay_nr + i),
-					selftest_path(selftest_nr + i,
+					unittest_path(unittest_nr + i,
 						PDEV_OVERLAY),
 					!before ? "enabled" : "disabled");
 			return;
 		}
 	}
 
-	selftest(1, "overlay test %d passed\n", 6);
+	unittest(1, "overlay test %d passed\n", 6);
 }
 
 /* test overlay application in sequence */
-static void of_selftest_overlay_8(void)
+static void of_unittest_overlay_8(void)
 {
 	struct device_node *np;
 	int ret, i, ov_id[2];
-	int overlay_nr = 8, selftest_nr = 8;
+	int overlay_nr = 8, unittest_nr = 8;
 
 	/* we don't care about device state in this test */
 
@@ -1385,14 +1399,14 @@ static void of_selftest_overlay_8(void)
 
 		np = of_find_node_by_path(overlay_path(overlay_nr + i));
 		if (np == NULL) {
-			selftest(0, "could not find overlay node @\"%s\"\n",
+			unittest(0, "could not find overlay node @\"%s\"\n",
 					overlay_path(overlay_nr + i));
 			return;
 		}
 
 		ret = of_overlay_create(np);
 		if (ret < 0)  {
-			selftest(0, "could not create overlay from \"%s\"\n",
+			unittest(0, "could not create overlay from \"%s\"\n",
 					overlay_path(overlay_nr + i));
 			return;
 		}
@@ -1402,9 +1416,9 @@ static void of_selftest_overlay_8(void)
 	/* now try to remove first overlay (it should fail) */
 	ret = of_overlay_destroy(ov_id[0]);
 	if (ret == 0) {
-		selftest(0, "overlay @\"%s\" was destroyed @\"%s\"\n",
+		unittest(0, "overlay @\"%s\" was destroyed @\"%s\"\n",
 				overlay_path(overlay_nr + 0),
-				selftest_path(selftest_nr,
+				unittest_path(unittest_nr,
 					PDEV_OVERLAY));
 		return;
 	}
@@ -1413,85 +1427,85 @@ static void of_selftest_overlay_8(void)
 	for (i = 1; i >= 0; i--) {
 		ret = of_overlay_destroy(ov_id[i]);
 		if (ret != 0) {
-			selftest(0, "overlay @\"%s\" not destroyed @\"%s\"\n",
+			unittest(0, "overlay @\"%s\" not destroyed @\"%s\"\n",
 					overlay_path(overlay_nr + i),
-					selftest_path(selftest_nr,
+					unittest_path(unittest_nr,
 						PDEV_OVERLAY));
 			return;
 		}
 	}
 
-	selftest(1, "overlay test %d passed\n", 8);
+	unittest(1, "overlay test %d passed\n", 8);
 }
 
 /* test insertion of a bus with parent devices */
-static void of_selftest_overlay_10(void)
+static void of_unittest_overlay_10(void)
 {
 	int ret;
 	char *child_path;
 
 	/* device should disable */
-	ret = of_selftest_apply_overlay_check(10, 10, 0, 1, PDEV_OVERLAY);
-	if (selftest(ret == 0,
+	ret = of_unittest_apply_overlay_check(10, 10, 0, 1, PDEV_OVERLAY);
+	if (unittest(ret == 0,
 			"overlay test %d failed; overlay application\n", 10))
 		return;
 
-	child_path = kasprintf(GFP_KERNEL, "%s/test-selftest101",
-			selftest_path(10, PDEV_OVERLAY));
-	if (selftest(child_path, "overlay test %d failed; kasprintf\n", 10))
+	child_path = kasprintf(GFP_KERNEL, "%s/test-unittest101",
+			unittest_path(10, PDEV_OVERLAY));
+	if (unittest(child_path, "overlay test %d failed; kasprintf\n", 10))
 		return;
 
 	ret = of_path_device_type_exists(child_path, PDEV_OVERLAY);
 	kfree(child_path);
-	if (selftest(ret, "overlay test %d failed; no child device\n", 10))
+	if (unittest(ret, "overlay test %d failed; no child device\n", 10))
 		return;
 }
 
 /* test insertion of a bus with parent devices (and revert) */
-static void of_selftest_overlay_11(void)
+static void of_unittest_overlay_11(void)
 {
 	int ret;
 
 	/* device should disable */
-	ret = of_selftest_apply_revert_overlay_check(11, 11, 0, 1,
+	ret = of_unittest_apply_revert_overlay_check(11, 11, 0, 1,
 			PDEV_OVERLAY);
-	if (selftest(ret == 0,
+	if (unittest(ret == 0,
 			"overlay test %d failed; overlay application\n", 11))
 		return;
 }
 
 #if IS_BUILTIN(CONFIG_I2C) && IS_ENABLED(CONFIG_OF_OVERLAY)
 
-struct selftest_i2c_bus_data {
+struct unittest_i2c_bus_data {
 	struct platform_device	*pdev;
 	struct i2c_adapter	adap;
 };
 
-static int selftest_i2c_master_xfer(struct i2c_adapter *adap,
+static int unittest_i2c_master_xfer(struct i2c_adapter *adap,
 		struct i2c_msg *msgs, int num)
 {
-	struct selftest_i2c_bus_data *std = i2c_get_adapdata(adap);
+	struct unittest_i2c_bus_data *std = i2c_get_adapdata(adap);
 
 	(void)std;
 
 	return num;
 }
 
-static u32 selftest_i2c_functionality(struct i2c_adapter *adap)
+static u32 unittest_i2c_functionality(struct i2c_adapter *adap)
 {
 	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
 }
 
-static const struct i2c_algorithm selftest_i2c_algo = {
-	.master_xfer	= selftest_i2c_master_xfer,
-	.functionality	= selftest_i2c_functionality,
+static const struct i2c_algorithm unittest_i2c_algo = {
+	.master_xfer	= unittest_i2c_master_xfer,
+	.functionality	= unittest_i2c_functionality,
 };
 
-static int selftest_i2c_bus_probe(struct platform_device *pdev)
+static int unittest_i2c_bus_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct device_node *np = dev->of_node;
-	struct selftest_i2c_bus_data *std;
+	struct unittest_i2c_bus_data *std;
 	struct i2c_adapter *adap;
 	int ret;
 
@@ -1505,7 +1519,7 @@ static int selftest_i2c_bus_probe(struct platform_device *pdev)
 
 	std = devm_kzalloc(dev, sizeof(*std), GFP_KERNEL);
 	if (!std) {
-		dev_err(dev, "Failed to allocate selftest i2c data\n");
+		dev_err(dev, "Failed to allocate unittest i2c data\n");
 		return -ENOMEM;
 	}
 
@@ -1518,7 +1532,7 @@ static int selftest_i2c_bus_probe(struct platform_device *pdev)
 	adap->nr = -1;
 	strlcpy(adap->name, pdev->name, sizeof(adap->name));
 	adap->class = I2C_CLASS_DEPRECATED;
-	adap->algo = &selftest_i2c_algo;
+	adap->algo = &unittest_i2c_algo;
 	adap->dev.parent = dev;
 	adap->dev.of_node = dev->of_node;
 	adap->timeout = 5 * HZ;
@@ -1533,11 +1547,11 @@ static int selftest_i2c_bus_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int selftest_i2c_bus_remove(struct platform_device *pdev)
+static int unittest_i2c_bus_remove(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct device_node *np = dev->of_node;
-	struct selftest_i2c_bus_data *std = platform_get_drvdata(pdev);
+	struct unittest_i2c_bus_data *std = platform_get_drvdata(pdev);
 
 	dev_dbg(dev, "%s for node @%s\n", __func__, np->full_name);
 	i2c_del_adapter(&std->adap);
@@ -1545,21 +1559,21 @@ static int selftest_i2c_bus_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id selftest_i2c_bus_match[] = {
-	{ .compatible = "selftest-i2c-bus", },
+static const struct of_device_id unittest_i2c_bus_match[] = {
+	{ .compatible = "unittest-i2c-bus", },
 	{},
 };
 
-static struct platform_driver selftest_i2c_bus_driver = {
-	.probe			= selftest_i2c_bus_probe,
-	.remove			= selftest_i2c_bus_remove,
+static struct platform_driver unittest_i2c_bus_driver = {
+	.probe			= unittest_i2c_bus_probe,
+	.remove			= unittest_i2c_bus_remove,
 	.driver = {
-		.name		= "selftest-i2c-bus",
-		.of_match_table	= of_match_ptr(selftest_i2c_bus_match),
+		.name		= "unittest-i2c-bus",
+		.of_match_table	= of_match_ptr(unittest_i2c_bus_match),
 	},
 };
 
-static int selftest_i2c_dev_probe(struct i2c_client *client,
+static int unittest_i2c_dev_probe(struct i2c_client *client,
 		const struct i2c_device_id *id)
 {
 	struct device *dev = &client->dev;
@@ -1575,7 +1589,7 @@ static int selftest_i2c_dev_probe(struct i2c_client *client,
 	return 0;
 };
 
-static int selftest_i2c_dev_remove(struct i2c_client *client)
+static int unittest_i2c_dev_remove(struct i2c_client *client)
 {
 	struct device *dev = &client->dev;
 	struct device_node *np = client->dev.of_node;
@@ -1584,42 +1598,42 @@ static int selftest_i2c_dev_remove(struct i2c_client *client)
 	return 0;
 }
 
-static const struct i2c_device_id selftest_i2c_dev_id[] = {
-	{ .name = "selftest-i2c-dev" },
+static const struct i2c_device_id unittest_i2c_dev_id[] = {
+	{ .name = "unittest-i2c-dev" },
 	{ }
 };
 
-static struct i2c_driver selftest_i2c_dev_driver = {
+static struct i2c_driver unittest_i2c_dev_driver = {
 	.driver = {
-		.name = "selftest-i2c-dev",
+		.name = "unittest-i2c-dev",
 		.owner = THIS_MODULE,
 	},
-	.probe = selftest_i2c_dev_probe,
-	.remove = selftest_i2c_dev_remove,
-	.id_table = selftest_i2c_dev_id,
+	.probe = unittest_i2c_dev_probe,
+	.remove = unittest_i2c_dev_remove,
+	.id_table = unittest_i2c_dev_id,
 };
 
 #if IS_BUILTIN(CONFIG_I2C_MUX)
 
-struct selftest_i2c_mux_data {
+struct unittest_i2c_mux_data {
 	int nchans;
 	struct i2c_adapter *adap[];
 };
 
-static int selftest_i2c_mux_select_chan(struct i2c_adapter *adap,
+static int unittest_i2c_mux_select_chan(struct i2c_adapter *adap,
 			       void *client, u32 chan)
 {
 	return 0;
 }
 
-static int selftest_i2c_mux_probe(struct i2c_client *client,
+static int unittest_i2c_mux_probe(struct i2c_client *client,
 		const struct i2c_device_id *id)
 {
 	int ret, i, nchans, size;
 	struct device *dev = &client->dev;
 	struct i2c_adapter *adap = to_i2c_adapter(dev->parent);
 	struct device_node *np = client->dev.of_node, *child;
-	struct selftest_i2c_mux_data *stm;
+	struct unittest_i2c_mux_data *stm;
 	u32 reg, max_reg;
 
 	dev_dbg(dev, "%s for node @%s\n", __func__, np->full_name);
@@ -1643,7 +1657,7 @@ static int selftest_i2c_mux_probe(struct i2c_client *client,
 		return -EINVAL;
 	}
 
-	size = offsetof(struct selftest_i2c_mux_data, adap[nchans]);
+	size = offsetof(struct unittest_i2c_mux_data, adap[nchans]);
 	stm = devm_kzalloc(dev, size, GFP_KERNEL);
 	if (!stm) {
 		dev_err(dev, "Out of memory\n");
@@ -1652,7 +1666,7 @@ static int selftest_i2c_mux_probe(struct i2c_client *client,
 	stm->nchans = nchans;
 	for (i = 0; i < nchans; i++) {
 		stm->adap[i] = i2c_add_mux_adapter(adap, dev, client,
-				0, i, 0, selftest_i2c_mux_select_chan, NULL);
+				0, i, 0, unittest_i2c_mux_select_chan, NULL);
 		if (!stm->adap[i]) {
 			dev_err(dev, "Failed to register mux #%d\n", i);
 			for (i--; i >= 0; i--)
@@ -1666,11 +1680,11 @@ static int selftest_i2c_mux_probe(struct i2c_client *client,
 	return 0;
 };
 
-static int selftest_i2c_mux_remove(struct i2c_client *client)
+static int unittest_i2c_mux_remove(struct i2c_client *client)
 {
 	struct device *dev = &client->dev;
 	struct device_node *np = client->dev.of_node;
-	struct selftest_i2c_mux_data *stm = i2c_get_clientdata(client);
+	struct unittest_i2c_mux_data *stm = i2c_get_clientdata(client);
 	int i;
 
 	dev_dbg(dev, "%s for node @%s\n", __func__, np->full_name);
@@ -1679,166 +1693,166 @@ static int selftest_i2c_mux_remove(struct i2c_client *client)
 	return 0;
 }
 
-static const struct i2c_device_id selftest_i2c_mux_id[] = {
-	{ .name = "selftest-i2c-mux" },
+static const struct i2c_device_id unittest_i2c_mux_id[] = {
+	{ .name = "unittest-i2c-mux" },
 	{ }
 };
 
-static struct i2c_driver selftest_i2c_mux_driver = {
+static struct i2c_driver unittest_i2c_mux_driver = {
 	.driver = {
-		.name = "selftest-i2c-mux",
+		.name = "unittest-i2c-mux",
 		.owner = THIS_MODULE,
 	},
-	.probe = selftest_i2c_mux_probe,
-	.remove = selftest_i2c_mux_remove,
-	.id_table = selftest_i2c_mux_id,
+	.probe = unittest_i2c_mux_probe,
+	.remove = unittest_i2c_mux_remove,
+	.id_table = unittest_i2c_mux_id,
 };
 
 #endif
 
-static int of_selftest_overlay_i2c_init(void)
+static int of_unittest_overlay_i2c_init(void)
 {
 	int ret;
 
-	ret = i2c_add_driver(&selftest_i2c_dev_driver);
-	if (selftest(ret == 0,
-			"could not register selftest i2c device driver\n"))
+	ret = i2c_add_driver(&unittest_i2c_dev_driver);
+	if (unittest(ret == 0,
+			"could not register unittest i2c device driver\n"))
 		return ret;
 
-	ret = platform_driver_register(&selftest_i2c_bus_driver);
-	if (selftest(ret == 0,
-			"could not register selftest i2c bus driver\n"))
+	ret = platform_driver_register(&unittest_i2c_bus_driver);
+	if (unittest(ret == 0,
+			"could not register unittest i2c bus driver\n"))
 		return ret;
 
 #if IS_BUILTIN(CONFIG_I2C_MUX)
-	ret = i2c_add_driver(&selftest_i2c_mux_driver);
-	if (selftest(ret == 0,
-			"could not register selftest i2c mux driver\n"))
+	ret = i2c_add_driver(&unittest_i2c_mux_driver);
+	if (unittest(ret == 0,
+			"could not register unittest i2c mux driver\n"))
 		return ret;
 #endif
 
 	return 0;
 }
 
-static void of_selftest_overlay_i2c_cleanup(void)
+static void of_unittest_overlay_i2c_cleanup(void)
 {
 #if IS_BUILTIN(CONFIG_I2C_MUX)
-	i2c_del_driver(&selftest_i2c_mux_driver);
+	i2c_del_driver(&unittest_i2c_mux_driver);
 #endif
-	platform_driver_unregister(&selftest_i2c_bus_driver);
-	i2c_del_driver(&selftest_i2c_dev_driver);
+	platform_driver_unregister(&unittest_i2c_bus_driver);
+	i2c_del_driver(&unittest_i2c_dev_driver);
 }
 
-static void of_selftest_overlay_i2c_12(void)
+static void of_unittest_overlay_i2c_12(void)
 {
 	int ret;
 
 	/* device should enable */
-	ret = of_selftest_apply_overlay_check(12, 12, 0, 1, I2C_OVERLAY);
+	ret = of_unittest_apply_overlay_check(12, 12, 0, 1, I2C_OVERLAY);
 	if (ret != 0)
 		return;
 
-	selftest(1, "overlay test %d passed\n", 12);
+	unittest(1, "overlay test %d passed\n", 12);
 }
 
 /* test deactivation of device */
-static void of_selftest_overlay_i2c_13(void)
+static void of_unittest_overlay_i2c_13(void)
 {
 	int ret;
 
 	/* device should disable */
-	ret = of_selftest_apply_overlay_check(13, 13, 1, 0, I2C_OVERLAY);
+	ret = of_unittest_apply_overlay_check(13, 13, 1, 0, I2C_OVERLAY);
 	if (ret != 0)
 		return;
 
-	selftest(1, "overlay test %d passed\n", 13);
+	unittest(1, "overlay test %d passed\n", 13);
 }
 
 /* just check for i2c mux existence */
-static void of_selftest_overlay_i2c_14(void)
+static void of_unittest_overlay_i2c_14(void)
 {
 }
 
-static void of_selftest_overlay_i2c_15(void)
+static void of_unittest_overlay_i2c_15(void)
 {
 	int ret;
 
 	/* device should enable */
-	ret = of_selftest_apply_overlay_check(16, 15, 0, 1, I2C_OVERLAY);
+	ret = of_unittest_apply_overlay_check(16, 15, 0, 1, I2C_OVERLAY);
 	if (ret != 0)
 		return;
 
-	selftest(1, "overlay test %d passed\n", 15);
+	unittest(1, "overlay test %d passed\n", 15);
 }
 
 #else
 
-static inline void of_selftest_overlay_i2c_14(void) { }
-static inline void of_selftest_overlay_i2c_15(void) { }
+static inline void of_unittest_overlay_i2c_14(void) { }
+static inline void of_unittest_overlay_i2c_15(void) { }
 
 #endif
 
-static void __init of_selftest_overlay(void)
+static void __init of_unittest_overlay(void)
 {
 	struct device_node *bus_np = NULL;
 	int ret;
 
-	ret = platform_driver_register(&selftest_driver);
+	ret = platform_driver_register(&unittest_driver);
 	if (ret != 0) {
-		selftest(0, "could not register selftest driver\n");
+		unittest(0, "could not register unittest driver\n");
 		goto out;
 	}
 
 	bus_np = of_find_node_by_path(bus_path);
 	if (bus_np == NULL) {
-		selftest(0, "could not find bus_path \"%s\"\n", bus_path);
+		unittest(0, "could not find bus_path \"%s\"\n", bus_path);
 		goto out;
 	}
 
 	ret = of_platform_populate(bus_np, of_default_bus_match_table,
 			NULL, NULL);
 	if (ret != 0) {
-		selftest(0, "could not populate bus @ \"%s\"\n", bus_path);
+		unittest(0, "could not populate bus @ \"%s\"\n", bus_path);
 		goto out;
 	}
 
-	if (!of_selftest_device_exists(100, PDEV_OVERLAY)) {
-		selftest(0, "could not find selftest0 @ \"%s\"\n",
-				selftest_path(100, PDEV_OVERLAY));
+	if (!of_unittest_device_exists(100, PDEV_OVERLAY)) {
+		unittest(0, "could not find unittest0 @ \"%s\"\n",
+				unittest_path(100, PDEV_OVERLAY));
 		goto out;
 	}
 
-	if (of_selftest_device_exists(101, PDEV_OVERLAY)) {
-		selftest(0, "selftest1 @ \"%s\" should not exist\n",
-				selftest_path(101, PDEV_OVERLAY));
+	if (of_unittest_device_exists(101, PDEV_OVERLAY)) {
+		unittest(0, "unittest1 @ \"%s\" should not exist\n",
+				unittest_path(101, PDEV_OVERLAY));
 		goto out;
 	}
 
-	selftest(1, "basic infrastructure of overlays passed");
+	unittest(1, "basic infrastructure of overlays passed");
 
 	/* tests in sequence */
-	of_selftest_overlay_0();
-	of_selftest_overlay_1();
-	of_selftest_overlay_2();
-	of_selftest_overlay_3();
-	of_selftest_overlay_4();
-	of_selftest_overlay_5();
-	of_selftest_overlay_6();
-	of_selftest_overlay_8();
-
-	of_selftest_overlay_10();
-	of_selftest_overlay_11();
+	of_unittest_overlay_0();
+	of_unittest_overlay_1();
+	of_unittest_overlay_2();
+	of_unittest_overlay_3();
+	of_unittest_overlay_4();
+	of_unittest_overlay_5();
+	of_unittest_overlay_6();
+	of_unittest_overlay_8();
+
+	of_unittest_overlay_10();
+	of_unittest_overlay_11();
 
 #if IS_BUILTIN(CONFIG_I2C)
-	if (selftest(of_selftest_overlay_i2c_init() == 0, "i2c init failed\n"))
+	if (unittest(of_unittest_overlay_i2c_init() == 0, "i2c init failed\n"))
 		goto out;
 
-	of_selftest_overlay_i2c_12();
-	of_selftest_overlay_i2c_13();
-	of_selftest_overlay_i2c_14();
-	of_selftest_overlay_i2c_15();
+	of_unittest_overlay_i2c_12();
+	of_unittest_overlay_i2c_13();
+	of_unittest_overlay_i2c_14();
+	of_unittest_overlay_i2c_15();
 
-	of_selftest_overlay_i2c_cleanup();
+	of_unittest_overlay_i2c_cleanup();
 #endif
 
 out:
@@ -1846,16 +1860,16 @@ static void __init of_selftest_overlay(void)
 }
 
 #else
-static inline void __init of_selftest_overlay(void) { }
+static inline void __init of_unittest_overlay(void) { }
 #endif
 
-static int __init of_selftest(void)
+static int __init of_unittest(void)
 {
 	struct device_node *np;
 	int res;
 
-	/* adding data for selftest */
-	res = selftest_data_add();
+	/* adding data for unittest */
+	res = unittest_data_add();
 	if (res)
 		return res;
 	if (!of_aliases)
@@ -1868,27 +1882,27 @@ static int __init of_selftest(void)
 	}
 	of_node_put(np);
 
-	pr_info("start of selftest - you will see error messages\n");
-	of_selftest_check_tree_linkage();
-	of_selftest_check_phandles();
-	of_selftest_find_node_by_name();
-	of_selftest_dynamic();
-	of_selftest_parse_phandle_with_args();
-	of_selftest_property_string();
-	of_selftest_property_copy();
-	of_selftest_changeset();
-	of_selftest_parse_interrupts();
-	of_selftest_parse_interrupts_extended();
-	of_selftest_match_node();
-	of_selftest_platform_populate();
-	of_selftest_overlay();
+	pr_info("start of unittest - you will see error messages\n");
+	of_unittest_check_tree_linkage();
+	of_unittest_check_phandles();
+	of_unittest_find_node_by_name();
+	of_unittest_dynamic();
+	of_unittest_parse_phandle_with_args();
+	of_unittest_property_string();
+	of_unittest_property_copy();
+	of_unittest_changeset();
+	of_unittest_parse_interrupts();
+	of_unittest_parse_interrupts_extended();
+	of_unittest_match_node();
+	of_unittest_platform_populate();
+	of_unittest_overlay();
 
 	/* Double check linkage after removing testcase data */
-	of_selftest_check_tree_linkage();
+	of_unittest_check_tree_linkage();
 
-	pr_info("end of selftest - %i passed, %i failed\n",
-		selftest_results.passed, selftest_results.failed);
+	pr_info("end of unittest - %i passed, %i failed\n",
+		unittest_results.passed, unittest_results.failed);
 
 	return 0;
 }
-late_initcall(of_selftest);
+late_initcall(of_unittest);

drivers/video/fbdev/omap2/dss/omapdss-boot-init.c

@@ -164,20 +164,15 @@ static void __init omapdss_walk_device(struct device_node *node, bool root)
 
 		pn = of_graph_get_remote_port_parent(n);
 
-		if (!pn) {
-			of_node_put(n);
+		if (!pn)
 			continue;
-		}
 
 		if (!of_device_is_available(pn) || omapdss_list_contains(pn)) {
 			of_node_put(pn);
-			of_node_put(n);
 			continue;
 		}
 
 		omapdss_walk_device(pn, false);
-
-		of_node_put(n);
 	}
 }
 

include/linux/of.h

@@ -622,6 +622,38 @@ static inline const char *of_prop_next_string(struct property *prop,
 	return NULL;
 }
 
+static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
+{
+	return 0;
+}
+
+static inline int of_node_test_and_set_flag(struct device_node *n,
+					    unsigned long flag)
+{
+	return 0;
+}
+
+static inline void of_node_set_flag(struct device_node *n, unsigned long flag)
+{
+}
+
+static inline void of_node_clear_flag(struct device_node *n, unsigned long flag)
+{
+}
+
+static inline int of_property_check_flag(struct property *p, unsigned long flag)
+{
+	return 0;
+}
+
+static inline void of_property_set_flag(struct property *p, unsigned long flag)
+{
+}
+
+static inline void of_property_clear_flag(struct property *p, unsigned long flag)
+{
+}
+
 #define of_match_ptr(_ptr)	NULL
 #define of_match_node(_matches, _node)	NULL
 #endif /* CONFIG_OF */

include/linux/of_graph.h

@@ -14,6 +14,8 @@
 #ifndef __LINUX_OF_GRAPH_H
 #define __LINUX_OF_GRAPH_H
 
+#include <linux/types.h>
+
 /**
  * struct of_endpoint - the OF graph endpoint data structure
  * @port: identifier (value of reg property) of a port this endpoint belongs to
@@ -26,9 +28,21 @@ struct of_endpoint {
 	const struct device_node *local_node;
 };
 
+/**
+ * for_each_endpoint_of_node - iterate over every endpoint in a device node
+ * @parent: parent device node containing ports and endpoints
+ * @child: loop variable pointing to the current endpoint node
+ *
+ * When breaking out of the loop, of_node_put(child) has to be called manually.
+ */
+#define for_each_endpoint_of_node(parent, child) \
+	for (child = of_graph_get_next_endpoint(parent, NULL); child != NULL; \
+	     child = of_graph_get_next_endpoint(parent, child))
+
 #ifdef CONFIG_OF
 int of_graph_parse_endpoint(const struct device_node *node,
 				struct of_endpoint *endpoint);
+struct device_node *of_graph_get_port_by_id(struct device_node *node, u32 id);
 struct device_node *of_graph_get_next_endpoint(const struct device_node *parent,
 					struct device_node *previous);
 struct device_node *of_graph_get_remote_port_parent(
@@ -42,6 +56,12 @@ static inline int of_graph_parse_endpoint(const struct device_node *node,
 	return -ENOSYS;
 }
 
+static inline struct device_node *of_graph_get_port_by_id(
+					struct device_node *node, u32 id)
+{
+	return NULL;
+}
+
 static inline struct device_node *of_graph_get_next_endpoint(
 					const struct device_node *parent,
 					struct device_node *previous)