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| author | Cong Yang <yangcong5@huaqin.corp-partner.google.com> | 2023-08-02 09:19:47 +0200 |
|---|---|---|
| committer | Benjamin Tissoires <bentiss@kernel.org> | 2023-08-21 17:21:43 +0200 |
| commit | f2f43bf15d7aa3286eced18d5199ee579e2c2614 (patch) | |
| tree | a2e71dc6548a4bc7069a96b6ffa942af73b5fef0 /drivers/eisa | |
| parent | dt-bindings: input: i2c-hid: Introduce Ilitek ili9882t (diff) | |
| download | linux-f2f43bf15d7aa3286eced18d5199ee579e2c2614.tar.xz linux-f2f43bf15d7aa3286eced18d5199ee579e2c2614.zip | |
HID: i2c-hid: elan: Add ili9882t timing
The ili9882t is a TDDI IC (Touch with Display Driver). The
datasheet specifies there should be 60ms between touch SDA
sleep and panel RESX. Doug's series[1] allows panels and
touchscreens to power on/off together, so we can add the 65 ms
delay in i2c_hid_core_suspend before panel_unprepare.
Because ili9882t touchscrgeen is a panel follower, and
needs to use vccio-supply instead of vcc33-supply, so set
it NULL to ili9882t_chip_data, then not use vcc33 regulator.
[1]: https://lore.kernel.org/all/20230727171750.633410-1-dianders@chromium.org
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
Acked-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20230802071947.1683318-3-yangcong5@huaqin.corp-partner.google.com
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Diffstat (limited to 'drivers/eisa')
0 files changed, 0 insertions, 0 deletions