gpio: mpsse: add quirk support

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[ Upstream commit f13b0f72af ]

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>
Stable-dep-of: 1e876e5a08 ("gpio: mpsse: fix reference leak in gpio_mpsse_probe() error paths")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Mary Strodl 2026-01-12 12:44:40 -05:00 • committed by Greg Kroah-Hartman

parent 472d900c8b

commit 7882637ea5

1 changed files with 106 additions and 3 deletions

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drivers/gpio/gpio-mpsse.c

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