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Commit 75052566 authored by Linus Torvalds's avatar Linus Torvalds
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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
parents 510965dd a2166ca5
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Documentation/devicetree/bindings/unittest.txt
View file @ 75052566
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
View file @ 75052566
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
View file @ 75052566
......@@ -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
View file @ 75052566
......@@ -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
View file @ 75052566
......@@ -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
View file @ 75052566
......@@ -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
View file @ 75052566
......@@ -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
View file @ 75052566
......@@ -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
View file @ 75052566
......@@ -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
View file @ 75052566
......@@ -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
View file @ 75052566
......@@ -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
View file @ 75052566
......@@ -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 0 → 100644
View file @ 75052566
testcases.dtb
testcases.dtb.S
drivers/of/unittest-data/Makefile 0 → 100644
View file @ 75052566
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
View file @ 75052566
......@@ -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
View file @ 75052566
......@@ -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
View file @ 75052566
......@@ -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
View file @ 75052566
......@@ -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
View file @ 75052566
......@@ -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)
......
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