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Date: Mon, 3 Jun 2024 15:37:57 -0700
From: Stephen Boyd <sboyd@...nel.org>
To: Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>
Cc: linux-kernel@...r.kernel.org,
linux-clk@...r.kernel.org,
patches@...ts.linux.dev,
kunit-dev@...glegroups.com,
linux-kselftest@...r.kernel.org,
devicetree@...r.kernel.org,
Brendan Higgins <brendan.higgins@...ux.dev>,
David Gow <davidgow@...gle.com>,
Rae Moar <rmoar@...gle.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"Rafael J . Wysocki" <rafael@...nel.org>,
Rob Herring <robh@...nel.org>,
Saravana Kannan <saravanak@...gle.com>,
Daniel Latypov <dlatypov@...gle.com>,
Christian Marangi <ansuelsmth@...il.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Maxime Ripard <maxime@...no.tech>
Subject: [PATCH v5 00/11] clk: Add kunit tests for fixed rate and parent data
This patch series adds unit tests for the clk fixed rate basic type and
the clk registration functions that use struct clk_parent_data. To get
there, we add support for loading device tree overlays onto the live DTB
along with probing platform drivers to bind to device nodes in the
overlays. With this series, we're able to exercise some of the code in
the common clk framework that uses devicetree lookups to find parents
and the fixed rate clk code that scans device tree directly and creates
clks. Please review.
I Cced everyone to all the patches so they get the full context. I'm
hoping I can take the whole pile through the clk tree as they all build
upon each other. Or the DT part can be merged through the DT tree to
reduce the dependencies.
Changes from v4: https://lore.kernel.org/r/20240422232404.213174-1-sboyd@kernel.org
* Picked up reviewed-by tags
* Check for non-NULL device pointers before calling put_device()
* Fix CFI issues with kunit actions
* Introduce platform_device_prepare_wait_for_probe() helper to wait for
a platform device to probe
* Move platform code to lib/kunit and rename functions to have kunit
prefix
* Fix issue with platform wrappers messing up reference counting
because they used kunit actions
* New patch to populate overlay devices on root node for powerpc
* Make fixed-rate binding generic single clk consumer binding
Changes from v3: https://lore.kernel.org/r/20230327222159.3509818-1-sboyd@kernel.org
* No longer depend on Frank's series[1] because it was merged upstream[2]
* Use kunit_add_action_or_reset() to shorten code
* Skip tests properly when CONFIG_OF_OVERLAY isn't set
Changes from v2: https://lore.kernel.org/r/20230315183729.2376178-1-sboyd@kernel.org
* Overlays don't depend on __symbols__ node
* Depend on Frank's always create root node if CONFIG_OF series[1]
* Added kernel-doc to KUnit API doc
* Fixed some kernel-doc on functions
* More test cases for fixed rate clk
Changes from v1: https://lore.kernel.org/r/20230302013822.1808711-1-sboyd@kernel.org
* Don't depend on UML, use unittest data approach to attach nodes
* Introduce overlay loading API for KUnit
* Move platform_device KUnit code to drivers/base/test
* Use #define macros for constants shared between unit tests and
overlays
* Settle on "test" as a vendor prefix
* Make KUnit wrappers have "_kunit" postfix
[1] https://lore.kernel.org/r/20230317053415.2254616-1-frowand.list@gmail.com
[2] https://lore.kernel.org/r/20240308195737.GA1174908-robh@kernel.org
Stephen Boyd (11):
of/platform: Allow overlays to create platform devices from the root
node
of: Add test managed wrappers for of_overlay_apply()/of_node_put()
dt-bindings: vendor-prefixes: Add "test" vendor for KUnit and friends
dt-bindings: test: Add KUnit empty node binding
of: Add a KUnit test for overlays and test managed APIs
platform: Add test managed platform_device/driver APIs
dt-bindings: test: Add single clk consumer
clk: Add test managed clk provider/consumer APIs
clk: Add KUnit tests for clk fixed rate basic type
dt-bindings: clk: Add clk_parent_data test
clk: Add KUnit tests for clks registered with struct clk_parent_data
Documentation/dev-tools/kunit/api/clk.rst | 10 +
Documentation/dev-tools/kunit/api/index.rst | 21 +
Documentation/dev-tools/kunit/api/of.rst | 13 +
.../dev-tools/kunit/api/platformdevice.rst | 10 +
.../bindings/clock/test,clk-parent-data.yaml | 47 ++
.../devicetree/bindings/test/test,empty.yaml | 30 ++
.../test/test,single-clk-consumer.yaml | 34 ++
.../devicetree/bindings/vendor-prefixes.yaml | 2 +
drivers/clk/.kunitconfig | 2 +
drivers/clk/Kconfig | 9 +
drivers/clk/Makefile | 9 +-
drivers/clk/clk-fixed-rate_test.c | 379 +++++++++++++++
drivers/clk/clk-fixed-rate_test.h | 8 +
drivers/clk/clk_kunit_helpers.c | 204 ++++++++
drivers/clk/clk_parent_data_test.h | 10 +
drivers/clk/clk_test.c | 451 +++++++++++++++++-
drivers/clk/kunit_clk_fixed_rate_test.dtso | 19 +
drivers/clk/kunit_clk_parent_data_test.dtso | 28 ++
drivers/of/.kunitconfig | 1 +
drivers/of/Kconfig | 10 +
drivers/of/Makefile | 2 +
drivers/of/kunit_overlay_test.dtso | 9 +
drivers/of/of_kunit_helpers.c | 74 +++
drivers/of/overlay_test.c | 116 +++++
drivers/of/platform.c | 9 +-
include/kunit/clk.h | 28 ++
include/kunit/of.h | 115 +++++
include/kunit/platform_device.h | 20 +
lib/kunit/Makefile | 4 +-
lib/kunit/platform-test.c | 223 +++++++++
lib/kunit/platform.c | 302 ++++++++++++
31 files changed, 2193 insertions(+), 6 deletions(-)
create mode 100644 Documentation/dev-tools/kunit/api/clk.rst
create mode 100644 Documentation/dev-tools/kunit/api/of.rst
create mode 100644 Documentation/dev-tools/kunit/api/platformdevice.rst
create mode 100644 Documentation/devicetree/bindings/clock/test,clk-parent-data.yaml
create mode 100644 Documentation/devicetree/bindings/test/test,empty.yaml
create mode 100644 Documentation/devicetree/bindings/test/test,single-clk-consumer.yaml
create mode 100644 drivers/clk/clk-fixed-rate_test.c
create mode 100644 drivers/clk/clk-fixed-rate_test.h
create mode 100644 drivers/clk/clk_kunit_helpers.c
create mode 100644 drivers/clk/clk_parent_data_test.h
create mode 100644 drivers/clk/kunit_clk_fixed_rate_test.dtso
create mode 100644 drivers/clk/kunit_clk_parent_data_test.dtso
create mode 100644 drivers/of/kunit_overlay_test.dtso
create mode 100644 drivers/of/of_kunit_helpers.c
create mode 100644 drivers/of/overlay_test.c
create mode 100644 include/kunit/clk.h
create mode 100644 include/kunit/of.h
create mode 100644 include/kunit/platform_device.h
create mode 100644 lib/kunit/platform-test.c
create mode 100644 lib/kunit/platform.c
base-commit: 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0
--
https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git/
https://git.kernel.org/pub/scm/linux/kernel/git/sboyd/spmi.git
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