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| author | Yuki Horii <yuuki198708@gmail.com> | 2026-04-10 16:41:00 +0900 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2026-05-04 17:27:43 -0700 |
| commit | 7b9b6b34a6474e6f0e4e7c48e33e824131ed46d5 (patch) | |
| tree | ea9973e083e68e5d1b48a298087e43b008cad0a1 /include/uapi/linux | |
| parent | e7b91b21755924c2b26bd4f925c1b538a48b2370 (diff) | |
Input: tsc2007 - reduce I2C transactions for Z2 read
The current implementation sends a separate power-down command
after reading the Z2 value, resulting in an extra I2C
transaction per measurement cycle.
The TSC2007 command byte contains a 2-bit power-down mode
selection field. By selecting the power-down state in the Z2
measurement command, the device powers down after the Z2 A/D
conversion completes, eliminating the subsequent power-down
transaction.
This reduces the number of I2C transactions by one per touch
measurement cycle, decreasing I2C bus overhead and improving
touch sampling performance.
Signed-off-by: Yuki Horii <yuuki198708@gmail.com>
Tested-by: Andreas Kemnade <andreas@kemnade.info> # GTA04
Link: https://patch.msgid.link/20260410074100.1660-1-horiiyuk@ishida.co.jp
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'include/uapi/linux')
0 files changed, 0 insertions, 0 deletions