Input: charlieplex_keypad - add GPIO charlieplex keypad

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Add support for GPIO-based charlieplex keypad, allowing to control
N^2-N keys using N GPIO lines.

Reuse matrix keypad keymap to simplify, even if there is no concept
of rows and columns in this type of keyboard.

Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Link: https://patch.msgid.link/20260312180304.3865850-5-hugo@hugovil.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

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Hugo Villeneuve 2026-04-18 22:18:54 -07:00 • committed by Dmitry Torokhov

parent 0d64bee764

commit 2ca45e57ea

4 changed files with 254 additions and 0 deletions

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7

MAINTAINERS

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14

drivers/input/keyboard/Kconfig

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1

drivers/input/keyboard/Makefile

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232

drivers/input/keyboard/charlieplex_keypad.c

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