kernel/linux.git/drivers/hte/Kconfig, branch v6.12.80

Merge tag 'for-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pateldipen1984/linux

2023-11-01T04:32:51+00:00

Pull hte/timestamp updates from Dipen Patel: - Improve comments in the translate function - Reflect the GPIOLIB API changes during calculation of the GPIO base - Improve error handling in Tegra test and provider drivers - Improve code to set the line name * tag 'for-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pateldipen1984/linux: hte: Use kasprintf() instead of fixed buffer formatting hte: tegra: Fix missing error code in tegra_hte_test_probe() hte: tegra194: Switch to LATE_SIMPLE_DEV_PM_OPS() hte: tegra194: Remove redundant dev_err() hte: tegra194: improve the GPIO-related comment hte: allow building modules with COMPILE_TEST enabled hte: Annotate struct hte_device with __counted_by

hte: tegra194: add GPIOLIB dependency

2023-10-23T18:07:36+00:00

The driver started calling into a few interfaces that are part of GPIOLIB and don't have stub implementations otherwise: drivers/hte/hte-tegra194.c: In function 'tegra_hte_line_xlate': drivers/hte/hte-tegra194.c:424:48: error: implicit declaration of function 'gpio_device_get_base'; did you mean 'gpio_device_get_desc'? [-Werror=implicit-function-declaration] 424 | line_id = desc->attr.line_id - gpio_device_get_base(gs->gdev); | ^~~~~~~~~~~~~~~~~~~~ | gpio_device_get_desc Add a Kconfig dependency to only allow building when this is defined. Fixes: dc850faa28ee0 ("hte: tegra194: don't access struct gpio_chip") Signed-off-by: Arnd Bergmann Acked-by: Dipen Patel Signed-off-by: Bartosz Golaszewski

hte: allow building modules with COMPILE_TEST enabled

2023-10-03T20:19:58+00:00

Allow building all HTE modules with COMPILE_TEST Kconfig option enabled. Signed-off-by: Bartosz Golaszewski Acked-by: Linus Walleij Acked-by: Dipen Patel Signed-off-by: Dipen Patel

hte: Add Tegra HTE test driver

2022-05-04T09:06:14+00:00

The test driver uses IRQ and GPIO lines to timestamp using HTE subsystem. The patch also adds compilation support in Kconfig and Makefile. Signed-off-by: Dipen Patel Signed-off-by: Thierry Reding

hte: Add Tegra194 HTE kernel provider

2022-05-04T09:06:13+00:00

Tegra194 device has multiple HTE instances also known as GTE (Generic Hardware Timestamping Engine) which can timestamp subset of SoC lines and signals. This provider driver focuses on IRQ and GPIO lines and exposes timestamping ability on those lines to the consumers through HTE subsystem. Also, with this patch, added: - documentation about this provider and its capabilities at Documentation/hte. - Compilation support in Makefile and Kconfig Signed-off-by: Dipen Patel Reported-by: kernel test robot Signed-off-by: Thierry Reding

drivers: Add hardware timestamp engine (HTE) subsystem

2022-05-04T09:05:54+00:00

Some devices can timestamp system lines/signals/Buses in real-time using the hardware counter or other hardware means which can give finer granularity and help avoid jitter introduced by software timestamping. To utilize such functionality, this patchset creates HTE subsystem where devices can register themselves as providers so that the consumers devices can request specific line from the providers. The patch also adds compilation support in Makefile and menu options in Kconfig. The provider does following: - Registers chip with the framework. - Provides translation hook to convert logical line id. - Provides enable/disable, request/release callbacks. - Pushes timestamp data to HTE subsystem. The consumer does following: - Initializes line attribute. - Gets HTE timestamp descriptor. - Requests timestamp functionality. - Puts HTE timestamp descriptor. Signed-off-by: Dipen Patel Reported-by: kernel test robot Signed-off-by: Thierry Reding