[PATCH 0/4] Input: edt-ft5x06: robustness fixes for a FocalTech FT5426 on a marginal bus

[Alexandre Hamamdjian via B4 Relay <devnull+azkali.limited.gmail.com@kernel.org>]

The AYANEO Pocket DS drives its FocalTech FT5426 touch controller on a
Qualcomm GENI i2c controller that has no bus recovery and, on this
board, clock-stretches close to the controller timeout. This series
collects the robustness work that helps there, smallest and most
generic first:

  1. ignore contacts reported with an out-of-range slot id -- a generic
     correctness fix, independent of the board;
  2. document, and
  3. implement an optional no-regmap-bulk-read mode that reads the touch
     frame one register at a time, for controllers whose bus aborts long
     transfers;
  4. poll while a contact is down to recover a touch release dropped by
     a missed edge interrupt.

Patch 1 stands on its own; the rest are opt-in (DT property / chip
behaviour) and inert on healthy hardware. Feedback on whether the bus
mitigations belong here vs. in the i2c controller is welcome.

Signed-off-by: Alexandre Hamamdjian <azkali.limited@gmail.com>
---
Alexandre Hamamdjian (3):
      Input: edt-ft5x06 - ignore contacts with an out-of-range slot id
      dt-bindings: input: edt-ft5x06 - add no-regmap-bulk-read property
      Input: edt-ft5x06 - poll while a contact is down to recover dropped releases

Teguh Sobirin (1):
      Input: edt-ft5x06 - allow reading the touch frame one register at a time

 .../bindings/input/touchscreen/edt-ft5x06.yaml     |   8 +
 drivers/input/touchscreen/edt-ft5x06.c             | 200 +++++++++++++++++++--
 2 files changed, 196 insertions(+), 12 deletions(-)
---
base-commit: e98d21c170b01ddef366f023bbfcf6b31509fa83
change-id: 20260723-b4-ft5426-393d8514e4bf

Best regards,
--  
Alexandre Hamamdjian <azkali.limited@gmail.com>