[PATCH 0/8] clk: Add kunit tests for fixed rate and parent data

Stephen Boyd
2023-03-02T01:38:34Z

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 a DTB into the UML kernel that's
running the unit tests along with probing platform drivers to bind to
device nodes specified in DT.

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 devicetree 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 almost all
depend on each other. In the future I imagine it will be easy to add
more test nodes to the clk.dtsi file and not need to go across various
maintainer trees like this series does.

Stephen Boyd (8):
dt-bindings: Add linux,kunit binding
of: Enable DTB loading on UML for KUnit tests
kunit: Add test managed platform_device/driver APIs
clk: Add test managed clk provider/consumer APIs
dt-bindings: kunit: Add fixed rate clk consumer test
clk: Add KUnit tests for clk fixed rate basic type
dt-bindings: clk: Add KUnit clk_parent_data test
clk: Add KUnit tests for clks registered with struct clk_parent_data

.../clock/linux,clk-kunit-parent-data.yaml | 47 ++
.../kunit/linux,clk-kunit-fixed-rate.yaml | 35 ++
.../bindings/kunit/linux,kunit.yaml | 24 +
arch/um/kernel/dtb.c | 29 +-
drivers/clk/.kunitconfig | 3 +
drivers/clk/Kconfig | 7 +
drivers/clk/Makefile | 6 +
drivers/clk/clk-fixed-rate_test.c | 296 ++++++++++++
drivers/clk/clk-kunit.c | 204 ++++++++
drivers/clk/clk-kunit.h | 28 ++
drivers/clk/clk_test.c | 456 +++++++++++++++++-
drivers/of/Kconfig | 26 +
drivers/of/Makefile | 1 +
drivers/of/kunit/.kunitconfig | 4 +
drivers/of/kunit/Makefile | 4 +
drivers/of/kunit/clk.dtsi | 30 ++
drivers/of/kunit/kunit.dtsi | 9 +
drivers/of/kunit/kunit.dtso | 4 +
drivers/of/kunit/uml_dtb_test.c | 55 +++
include/kunit/platform_driver.h | 15 +
lib/kunit/Makefile | 6 +
lib/kunit/platform_driver-test.c | 107 ++++
lib/kunit/platform_driver.c | 207 ++++++++
23 files changed, 1599 insertions(+), 4 deletions(-)
create mode 100644 Documentation/devicetree/bindings/clock/linux,clk-kunit-parent-data.yaml
create mode 100644 Documentation/devicetree/bindings/kunit/linux,clk-kunit-fixed-rate.yaml
create mode 100644 Documentation/devicetree/bindings/kunit/linux,kunit.yaml
create mode 100644 drivers/clk/clk-fixed-rate_test.c
create mode 100644 drivers/clk/clk-kunit.c
create mode 100644 drivers/clk/clk-kunit.h
create mode 100644 drivers/of/kunit/.kunitconfig
create mode 100644 drivers/of/kunit/Makefile
create mode 100644 drivers/of/kunit/clk.dtsi
create mode 100644 drivers/of/kunit/kunit.dtsi
create mode 100644 drivers/of/kunit/kunit.dtso
create mode 100644 drivers/of/kunit/uml_dtb_test.c
create mode 100644 include/kunit/platform_driver.h
create mode 100644 lib/kunit/platform_driver-test.c
create mode 100644 lib/kunit/platform_driver.c

base-commit: c9c3395d5e3dcc6daee66c6908354d47bf98cb0c
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