gpio: updates for v5.10 - part 2

From: Bartosz Golaszewski <[email protected]>

Hi Linus,

Here is the last batch of updates for v5.10 from my side. The biggest part of this PR is the new uAPI by Kent Gibson - it's time to finally get them upstream!

Other than that we have some refactoring of the gpio-mockup module and a code shrink for gpio-mpc8xxx.

There's one commit here that's in your fixes branch but not in devel - the fix of a resource leak in gpio-mockup. This is because the refactoring patches depend on it.

Please pull.

The following changes since commit 12d16b397ce0a999d13762c4c0cae2fb82eb60ee:

gpio: mxc: Support module build (2020-09-29 15:04:31 +0200)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git tags/gpio-updates-for-v5.10-part2

for you to fetch changes up to cf048e05b68789e9fa35f246f8ecbe95d79f4173:

tools: gpio: add debounce support to gpio-event-mon (2020-09-30 10:57:30 +0200)

----------------------------------------------------------------
gpio updates for v5.10 - part 2

- refactor gpio-mockup testing module
- simplify the code in gpio-mpc8xxx
- implement v2 of the GPIO user API

----------------------------------------------------------------
Bartosz Golaszewski (11):
gpio: mockup: fix resource leak in error path
lib: string_helpers: provide kfree_strarray()
Documentation: gpio: add documentation for gpio-mockup
gpio: mockup: drop unneeded includes
gpio: mockup: use KBUILD_MODNAME
gpio: mockup: use pr_fmt()
gpio: mockup: remove unneeded return statement
gpio: mockup: increase the number of supported device properties
gpio: mockup: pass the chip label as device property
gpio: mockup: use the generic 'gpio-line-names' property
gpio: mockup: refactor the module init function

Kent Gibson (20):
gpiolib: cdev: gpio_desc_to_lineinfo() should set info offset
gpiolib: cdev: replace strncpy() with strscpy()
gpio: uapi: define GPIO_MAX_NAME_SIZE for array sizes
gpio: uapi: define uAPI v2
gpiolib: make cdev a build option
gpiolib: add build option for CDEV v1 ABI
gpiolib: cdev: support GPIO_V2_GET_LINE_IOCTL and GPIO_V2_LINE_GET_VALUES_IOCTL
gpiolib: cdev: support GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL
gpiolib: cdev: support edge detection for uAPI v2
gpiolib: cdev: support GPIO_V2_LINE_SET_CONFIG_IOCTL
gpiolib: cdev: support GPIO_V2_LINE_SET_VALUES_IOCTL
gpiolib: cdev: support setting debounce
gpio: uapi: document uAPI v1 as deprecated
tools: gpio: port lsgpio to v2 uAPI
tools: gpio: port gpio-watch to v2 uAPI
tools: gpio: rename nlines to num_lines
tools: gpio: port gpio-hammer to v2 uAPI
tools: gpio: port gpio-event-mon to v2 uAPI
tools: gpio: add multi-line monitoring to gpio-event-mon
tools: gpio: add debounce support to gpio-event-mon

Michael Walle (1):

      gpio: mpc8xxx: simplify ls1028a/ls1088a support

 Documentation/admin-guide/gpio/gpio-mockup.rst |   50 +
 drivers/gpio/Kconfig                           |   29 +-
 drivers/gpio/Makefile                          |    2 +-
 drivers/gpio/gpio-mockup.c                     |  160 +--
 drivers/gpio/gpio-mpc8xxx.c                    |   45 +-
 drivers/gpio/gpiolib-cdev.c                    | 1539 +++++++++++++++++++++---
 drivers/gpio/gpiolib-cdev.h                    |   15 +
 drivers/gpio/gpiolib.c                         |    5 +
 drivers/gpio/gpiolib.h                         |    6 +
 include/linux/string_helpers.h                 |    2 +
 include/uapi/linux/gpio.h                      |  334 ++++-
 lib/string_helpers.c                           |   23 +
 tools/gpio/gpio-event-mon.c                    |  146 ++-
 tools/gpio/gpio-hammer.c                       |   56 +-
 tools/gpio/gpio-utils.c                        |  176 ++-
 tools/gpio/gpio-utils.h                        |   48 +-
 tools/gpio/gpio-watch.c                        |   16 +-
 tools/gpio/lsgpio.c                            |   60 +-
 18 files changed, 2273 insertions(+), 439 deletions(-)
 create mode 100644 Documentation/admin-guide/gpio/gpio-mockup.rst

Awesome. Pulled into my "devel" branch. I will test this on the build servers and then submit to linux-next.

This is nice stuff too.

OK let's see if I figure it out.

Yours,
Linus Walleij