[PATCH 0/3] Input: cyttsp5 - fix device startup

[Marc-Olivier Champagne]

This series fixes three startup problems of the cyttsp5 driver that we
hit while bringing up Cypress TT21000 panels on a Renesas RZ/G2L based
product. They date back to the initial driver and are all in the
reset/first-command sequence of cyttsp5_startup().

Patch 2 relies on patch 1 to identify the sentinel and patch 3 is
written on top of the startup sequence of patch 2, so they should be
backported together.

Tested on a 5.50" TT21000 panel (Renesas RZ/G2LC, edge-triggered INT
line), with the reset line wired and with reset-gpios removed from the
device tree: cold boot, warm reboot, watchdog reset, 20 driver
reload/unbind/bind cycles, and binds timed around the reset sentinel
without a reset line, all without a sentinel or HID error, plus a touch
and button sanity check.

A follow-up series with cleanups and firmware version reporting depends
on these three patches and will be posted separately.

Marc-Olivier Champagne (3):
  Input: cyttsp5 - fix bug when parsing reset sentinel packet
  Input: cyttsp5 - init IRQ early to avoid app startup problems
  Input: cyttsp5 - only launch the application when in bootloader mode

 drivers/input/touchscreen/cyttsp5.c | 150 +++++++++++++++++++++++-----
 1 file changed, 127 insertions(+), 23 deletions(-)


base-commit: a215720959c5450b3699e243904b39c3f8f68888
-- 
2.34.1