gpio: mpsse: add quirk support

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Builds out a facility for specifying compatible lines directions and
labels for MPSSE-based devices.

* dir_in/out are bitmask of lines that can go in/out. 1 means
  compatible, 0 means incompatible.
* names is an array of line names which will be exposed to userspace.

Also changes the chip label format to include some more useful
information about the device to help identify it from userspace.

Signed-off-by: Mary Strodl <mstrodl@csh.rit.edu>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20251014133530.3592716-4-mstrodl@csh.rit.edu
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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Mary Strodl 2025-10-14 09:35:29 -04:00 • committed by Bartosz Golaszewski

parent 179ef1127d

commit f13b0f72af

1 changed files with 106 additions and 3 deletions

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109

drivers/gpio/gpio-mpsse.c

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