commit d7162912e6da57cd046545fecf4e26eb4e281290
author Hyungwoo Yang <hyungwooyang@google.com> Mon Feb 27 07:10:40 2023 +0000
committer Hyungwoo Yang <hyungwooyang@google.com> Wed Mar 08 05:34:21 2023 +0000
tree dbb1e8783ae038e4c712407940436f24ac312862
parent 56a9d343f35dff81006fe10a92e35edae0b4e508

touch/novatek: stylus info handling on normal fairing

Sometimes, even with the only one stylus, we see normal pairing
happening instead of fast pairing. This removes the stylus
information maintained in the driver and the UI platform cannot
shows the stylus information until the driver collects the same
information again.

This patch, when there's normal pairing, compares new HASH ID with the
one from the previous stylus. The driver removes the stylus information
only when the HASH ID is changed.

Bug: 259261326

Change-Id: I1cda091a3455d8e7adcdecfeeded5de69bbece5d
Signed-off-by: Hyungwoo Yang <hyungwooyang@google.com>