From: Wang Long <long.wanglong@huawei.com>
To: gaurav.minocha.os@gmail.com, robherring2@gmail.com,
robh+dt@kernel.org, pantelis.antoniou@konsulko.com,
grant.likely@linaro.org
Cc: pawel.moll@arm.com, mark.rutland@arm.com, galak@codeaurora.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
peifeiyue@huawei.com, long.wanglong@huawei.com,
ijc+devicetree@hellion.org.uk
Subject: [PATCH v2 3/5] Documentation: update the of_selftest.txt
Date: Wed, 11 Mar 2015 08:36:52 +0000 [thread overview]
Message-ID: <1426063014-211712-4-git-send-email-long.wanglong@huawei.com> (raw)
In-Reply-To: <1426063014-211712-1-git-send-email-long.wanglong@huawei.com>
Since the directory "drivers/of/testcase-data" is renamed
to "drivers/of/unittest-data". so we should update the path
in the of_selftest.txt.
When the kernel is built with OF_UNITTEST enabled, the output
dtb is testcases.dtb instead of testcase.dtb, also update it
(s/testcase/testcases/).
Signed-off-by: Wang Long <long.wanglong@huawei.com>
---
Documentation/devicetree/of_selftest.txt | 35 ++++++++++++++++----------------
1 file changed, 18 insertions(+), 17 deletions(-)
diff --git a/Documentation/devicetree/of_selftest.txt b/Documentation/devicetree/of_selftest.txt
index 57a808b..d79a6bc 100644
--- a/Documentation/devicetree/of_selftest.txt
+++ b/Documentation/devicetree/of_selftest.txt
@@ -1,11 +1,11 @@
-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 +22,32 @@ 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
+drivers/of/unittest-data/tests-overlay.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.
@@ -98,8 +99,8 @@ 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
-machine's device tree (if present). So, when selftest_data_add() is called,
+Before executing OF unittest, it is required to attach the test data to
+machine's device tree (if present). So, when unittest_data_add() is called,
at first it reads the flattened device tree data linked into the kernel image
via the following kernel symbols:
@@ -186,10 +187,10 @@ update_node_properties().
2.2. Removing the test data
-Once the test case execution is complete, selftest_data_remove is called in
+Once the test case execution is complete, unittest_data_remove is called in
order to remove the device nodes attached initially (first the leaf nodes are
detached and then moving up the parent nodes are removed, and eventually the
-whole tree). selftest_data_remove() calls detach_node_and_children() that uses
+whole tree). unittest_data_remove() calls detach_node_and_children() that uses
of_detach_node() to detach the nodes from the live device tree.
To detach a node, of_detach_node() either updates the child pointer of given
--
1.8.3.4
next prev parent reply other threads:[~2015-03-11 8:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-11 8:36 [PATCH v2 0/5] Update the OF unittest and some small fix Wang Long
2015-03-11 8:36 ` [PATCH v2 1/5] of/unittest: remove the duplicate of_changeset_init Wang Long
2015-03-11 8:36 ` [PATCH v2 2/5] of/unittest: Fix the wrong expected value in of_selftest_property_string Wang Long
2015-03-11 8:36 ` Wang Long [this message]
[not found] ` <1426063014-211712-1-git-send-email-long.wanglong-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2015-03-11 8:36 ` [PATCH v2 4/5] Documentation: rename of_selftest.txt to of_unittest.txt Wang Long
2015-03-11 8:36 ` [PATCH v2 5/5] of/unittest: replace 'selftest' with 'unittest' Wang Long
2015-03-25 4:43 ` [PATCH v2 0/5] Update the OF unittest and some small fix Rob Herring
2015-03-28 13:23 ` Grant Likely
[not found] ` <20150328132347.84128C4093E-WNowdnHR2B42iJbIjFUEsiwD8/FfD2ys@public.gmane.org>
2015-03-29 17:24 ` Grant Likely
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