Sun, Apr 16, 2023 at 01:36:52PM -0400, William Breathitt Gray kirjoitti: > The Intel 8254 PIT first appeared in the early 1980s and was used > initially in IBM PC compatibles. The popularity of the original Intel > 825x family of chips led to many subsequent variants and clones of the > interface in various chips and integrated circuits. Although still > popular, interfaces compatible with the Intel 8254 PIT are nowdays > typically found embedded in larger VLSI processing chips and FPGA > components rather than as discrete ICs. > > This patch series introduces a library to provide support for interfaces > compatible with the venerable Intel 8254 Programmable Interval Timer > (PIT). Modules wanting access to the i8254 library should select the > newly introduced CONFIG_I8254 Kconfig option, and import the I8254 > symbol namespace. > > Support for the i8254 is added in respective follow-up patches for the > 104-dio-48e driver and stx104 driver whose devices feature i8254 > compatible interfaces. Several additional dependencies are necessary for > the 104-dio-48e [0][1][2] and stx104 [3][4]. > > Due to the dependency requirements, I can take the i8254 introduction > patch through the Counter tree and provide an immutable branch that can > be merged to the GPIO and IIO trees; the 104-dio-48e patch and stx104 > patch could then be picked up separately by the respective subsystem > maintainers. Good job! What I'm wondering is that. Can x86 core and others which are using that chip utilize (some of) the functions from the library? > [0] https://lore.kernel.org/all/05a878d340251b781387db4b6490f288e41a651c.1680543810.git.william.gray@xxxxxxxxxx/ > [1] https://lore.kernel.org/all/20230208105542.9459-1-william.gray@xxxxxxxxxx/ > [2] https://lore.kernel.org/all/cover.1679323449.git.william.gray@xxxxxxxxxx/ > [3] https://lore.kernel.org/all/20230318185503.341914-1-william.gray@xxxxxxxxxx/ > [4] https://lore.kernel.org/all/cover.1680790580.git.william.gray@xxxxxxxxxx/ -- With Best Regards, Andy Shevchenko
