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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-06-05 09:12:28 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-06-05 09:12:28 -0700 |
| commit | 2981436374177f78539b026ce5bcbab8c251818e (patch) | |
| tree | d9d7c4854d4461bec86ca9c0695617a2baeb8e81 /include/uapi | |
| parent | 71e80720dbf0f08c6979e54f21ddaa5735ce742d (diff) | |
| parent | 5dad4eccd2b4316a84209603a28d34c6346392bb (diff) | |
| download | linux-2981436374177f78539b026ce5bcbab8c251818e.tar.gz linux-2981436374177f78539b026ce5bcbab8c251818e.tar.bz2 linux-2981436374177f78539b026ce5bcbab8c251818e.zip | |
Merge tag 'hte/for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux
Pull hardware timestamping subsystem from Thierry Reding:
"This contains the new HTE (hardware timestamping engine) subsystem
that has been in the works for a couple of months now.
The infrastructure provided allows for drivers to register as hardware
timestamp providers, while consumers will be able to request events
that they are interested in (such as GPIOs and IRQs) to be timestamped
by the hardware providers.
Note that this currently supports only one provider, but there seems
to be enough interest in this functionality and we expect to see more
drivers added once this is merged"
[ Linus Walleij mentions the Intel PMC in the Elkhart and Tiger Lake
platforms as another future timestamp provider ]
* tag 'hte/for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
dt-bindings: timestamp: Correct id path
dt-bindings: Renamed hte directory to timestamp
hte: Uninitialized variable in hte_ts_get()
hte: Fix off by one in hte_push_ts_ns()
hte: Fix possible use-after-free in tegra_hte_test_remove()
hte: Remove unused including <linux/version.h>
MAINTAINERS: Add HTE Subsystem
hte: Add Tegra HTE test driver
tools: gpio: Add new hardware clock type
gpiolib: cdev: Add hardware timestamp clock type
gpio: tegra186: Add HTE support
gpiolib: Add HTE support
dt-bindings: Add HTE bindings
hte: Add Tegra194 HTE kernel provider
drivers: Add hardware timestamp engine (HTE) subsystem
Documentation: Add HTE subsystem guide
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/gpio.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/uapi/linux/gpio.h b/include/uapi/linux/gpio.h index eaaea3d8e6b4..cb9966d49a16 100644 --- a/include/uapi/linux/gpio.h +++ b/include/uapi/linux/gpio.h @@ -66,6 +66,8 @@ struct gpiochip_info { * @GPIO_V2_LINE_FLAG_BIAS_PULL_DOWN: line has pull-down bias enabled * @GPIO_V2_LINE_FLAG_BIAS_DISABLED: line has bias disabled * @GPIO_V2_LINE_FLAG_EVENT_CLOCK_REALTIME: line events contain REALTIME timestamps + * @GPIO_V2_LINE_FLAG_EVENT_CLOCK_HTE: line events contain timestamps from + * hardware timestamp engine */ enum gpio_v2_line_flag { GPIO_V2_LINE_FLAG_USED = _BITULL(0), @@ -80,6 +82,7 @@ enum gpio_v2_line_flag { GPIO_V2_LINE_FLAG_BIAS_PULL_DOWN = _BITULL(9), GPIO_V2_LINE_FLAG_BIAS_DISABLED = _BITULL(10), GPIO_V2_LINE_FLAG_EVENT_CLOCK_REALTIME = _BITULL(11), + GPIO_V2_LINE_FLAG_EVENT_CLOCK_HTE = _BITULL(12), }; /** |