kernel/linux.git/tools/testing/selftests/gpio, branch v6.19.11

selftests: gpio: gpio-aggregator: add a test case for _sysfs prefix reservation

2025-04-14T20:30:01+00:00

The kernel doc for gpio-aggregator configfs interface, which was recently added, states that users should not be able to create an aggregator with a name prefixed by "_sysfs" via configfs. However, it was found that this guard does not function as expected (thanks to Dan Carpenter for identifying and fixing the issue). Add a test case to verify the guard. Signed-off-by: Koichiro Den Link: https://lore.kernel.org/r/20250412150119.1461023-1-koichiro.den@canonical.com Signed-off-by: Bartosz Golaszewski

selftests: gpio: add test cases for gpio-aggregator

2025-04-09T14:57:30+00:00

Add a set of tests for gpio-aggregator module. This test covers both pre-existing new_device/delete_device interface and new configfs-based interface. Signed-off-by: Koichiro Den Link: https://lore.kernel.org/r/20250407043019.4105613-10-koichiro.den@canonical.com Signed-off-by: Bartosz Golaszewski

selftests: gpio: gpio-sim: Fix missing chip disablements

2025-01-23T14:44:48+00:00

Since upstream commit 8bd76b3d3f3a ("gpio: sim: lock up configfs that an instantiated device depends on"), rmdir for an active virtual devices been prohibited. Update gpio-sim selftest to align with the change. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-lkp/202501221006.a1ca5dfa-lkp@intel.com Signed-off-by: Koichiro Den Link: https://lore.kernel.org/r/20250122043309.304621-1-koichiro.den@canonical.com Signed-off-by: Bartosz Golaszewski

selftest: gpio: remove obsolete gpio-mockup test

2024-03-05T19:01:08+00:00

With the removal of the ARCH_NR_GPIOS, the number of available GPIOs is effectively unlimited, causing the gpio-mockup module load failure test that overflowed the number of GPIOs to unexpectedly succeed, and so fail. The test is no longer relevant so remove it. Promote the "no lines defined" test so there is still one load failure test in the basic set. Fixes: 7b61212f2a07 ("gpiolib: Get rid of ARCH_NR_GPIOS") Reported-by: Pengfei Xu Reported-by: Yi Lai Closes: https://lore.kernel.org/linux-gpio/ZC6OHBjdwBdT4sSb@xpf.sh.intel.com/ Signed-off-by: Kent Gibson Acked-by: Christophe Leroy Signed-off-by: Bartosz Golaszewski

Merge tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

2023-06-29T17:11:10+00:00

Pull gpio updates from Bartosz Golaszewski: "We have two new drivers, some improvements to the core code, lots of different updates to existing GPIO drivers and some dt-bindings on top. There's nothing controversial in here and almost everything has been in next for more than a week (95% a lot longer than this). The only thing that has spent less time in next is a new driver so no risk of regressions. The single merge pulls in changes that remove all usage of global GPIO numbers from arch/arm/mach-omap. Core GPIO library: - remove unused symbols - don't spam the kernel log with messages about hogs - remove old sysfs API cruft - improve handling of GPIO masks New drivers: - add a driver for the BlueField-3 GPIO controller - add GPIO support for the TPS65219 PMIC Driver improvements: - extend the gpio-aggregator driver to support ramp-up/ramp-down delay - remove unnecessary CONFIG_OF guards from gpio-aggregator - readability improvements in gpio-tangier - switch i2c drivers back to using probe() now that it's been converted in the i2c subsystem to not taking the id parameter - remove unused inclusions of of_gpio.h in several drivers - make pm ops static in gpio-davinci and fix a comment - use more devres in drivers to shrink and simplify the code - add missing include in gpio-sa1100 - add HAS_IOPORT KConfig dependency where needed - add permissions checks before accessing pins in gpio-tegra186 - convert the gpio-zynq driver to using immutable irqchips - preserve output settings set by the bootloader in gpio-mpc8xxx Selftests: - tweak the variable naming in script tests Device tree updates: - convert gpio-mmio and gpio-stmpe to YAML - add parsing of GPIO hogs to gpio-vf610 - add bindings for the Cirrus EP93xx GPIO controller - add gpio-line-names property to the gpio-pca9570 bindings - extend the binding for x-powers,axp209 with another block" * tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (58 commits) of: unittest: drop assertions for GPIO hog messages gpiolib: Drop unused domain_ops memeber of GPIO IRQ chip gpio: synq: remove unused zynq_gpio_irq_reqres/zynq_gpio_irq_relres dt-bindings: gpio: gpio-vf610: Add parsing of hogs gpio: lpc18xx: Remove unused of_gpio.h inclusion gpio: xra1403: Remove unused of_gpio.h inclusion gpio: mpc8xxx: Remove unused of_gpio.h inclusion dt-bindings: gpio: Add Cirrus EP93xx gpio: mpc8xxx: latch GPIOs state on module load when configured as output selftests: gpio: gpio-sim: Use same variable name for sysfs pathname gpio: mlxbf3: Add gpio driver support gpio: delay: Remove duplicative functionality gpio: aggregator: Set up a parser of delay line parameters gpio: aggregator: Support delay for setting up individual GPIOs gpio: aggregator: Remove CONFIG_OF and of_match_ptr() protections dt-bindings: gpio: pca9570: add gpio-line-names property gpiolib: remove unused gpio_cansleep() gpio: tps65219: add GPIO support for TPS65219 PMIC gpio: zynq: fix zynqmp_gpio not an immutable chip warning gpio: davinci: make davinci_gpio_dev_pm_ops static ...

selftests: gpio: gpio-sim: Use same variable name for sysfs pathname

2023-06-16T09:10:08+00:00

SYSFS_PATH can be used locally and globally, especially that has the same content. Signed-off-by: Andy Shevchenko Signed-off-by: Bartosz Golaszewski

selftests: gpio: gpio-sim: Fix BUG: test FAILED due to recent change

2023-05-11T12:41:45+00:00

According to Mirsad the gpio-sim.sh test appears to FAIL in a wrong way due to missing initialisation of shell variables: 4.2. Bias settings work correctly cat: /sys/devices/platform/gpio-sim.0/gpiochip18/sim_gpio0/value: No such file or directory ./gpio-sim.sh: line 393: test: =: unary operator expected bias setting does not work GPIO gpio-sim test FAIL After this change the test passed: 4.2. Bias settings work correctly GPIO gpio-sim test PASS His testing environment is AlmaLinux 8.7 on Lenovo desktop box with the latest Linux kernel based on v6.2: Linux 6.2.0-mglru-kmlk-andy-09238-gd2980d8d8265 x86_64 Suggested-by: Mirsad Todorovac Signed-off-by: Andy Shevchenko Tested-by: Mirsad Goran Todorovac Signed-off-by: Mirsad Goran Todorovac Signed-off-by: Bartosz Golaszewski

selftests: gpio: Fix incorrect kernel headers search path

2023-02-13T16:09:44+00:00

Use $(KHDR_INCLUDES) as lookup path for kernel headers. This prevents building against kernel headers from the build environment in scenarios where kernel headers are installed into a specific output directory (O=...). Signed-off-by: Mathieu Desnoyers Cc: Shuah Khan Cc: linux-kselftest@vger.kernel.org Cc: Ingo Molnar Cc: # 5.18+ Signed-off-by: Shuah Khan

selftests: gpio: Use "grep -E" instead of "egrep"

2022-11-25T17:57:23+00:00

The latest version of grep claims the egrep is now obsolete so the build now contains warnings that look like: egrep: warning: egrep is obsolescent; using grep -E fix this up by moving the related file to use "grep -E" instead. sed -i "s/egrep/grep -E/g" `grep egrep -rwl tools/testing/selftests/gpio` Here are the steps to install the latest grep: wget http://ftp.gnu.org/gnu/grep/grep-3.8.tar.gz tar xf grep-3.8.tar.gz cd grep-3.8 && ./configure && make sudo make install export PATH=/usr/local/bin:$PATH Signed-off-by: Tiezhu Yang Signed-off-by: Shuah Khan

selftests: gpio: fix include path to kernel headers for out of tree builds

2022-07-20T12:35:18+00:00

When building selftests out of the kernel tree the gpio.h the include path is incorrect and the build falls back to the system includes which may be outdated. Add the KHDR_INCLUDES to the CFLAGS to include the gpio.h from the build tree. Fixes: 4f4d0af7b2d9 ("selftests: gpio: restore CFLAGS options") Reported-by: kernel test robot Signed-off-by: Kent Gibson Signed-off-by: Bartosz Golaszewski