linux-kernel - [PATCH 0/6] Input: matrix-keypad: Various performance improvements

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Message-Id: <20241031063004.69956-1-markus.burri@mt.com>
Date: Thu, 31 Oct 2024 07:29:58 +0100
From: Markus Burri <markus.burri@...com>
To: linux-kernel@...r.kernel.org
Cc: Markus Burri <markus.burri@...com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-input@...r.kernel.org,
	devicetree@...r.kernel.org,
	Manuel Traut <manuel.traut@...com>,
	HeDong Zhao <hedong.zhao@...com>
Subject: [PATCH 0/6] Input: matrix-keypad: Various performance improvements

This series is needed to avoid key-loss if the GPIOs are connected via a I2C GPIO Mux
that introduces additonal latencies between key change and matrix scan.
 
Patch 1, 2 and 6 in this series introduce a performance boost on its own
and can be merged separately.
 
Patch 3, 4 and 5 depend on each other.

Markus Burri (6):
  Input: matrix_keypad - move gpio-row init to the init part
  Input: matrix_keypad - use fsleep for variable delay duration
  Input: matrix_keypad - add function for reading row state
  dt-bindings: input: matrix_keypad - add settle time after enable all
    columns
  Input: matrix_keypad - add settle time after enable all columns
  Input: matrix_keypad - detect change during scan

 .../bindings/input/gpio-matrix-keypad.txt     |  2 +
 drivers/input/keyboard/matrix_keypad.c        | 44 ++++++++++++++++---
 2 files changed, 39 insertions(+), 7 deletions(-)

-- 
2.39.5