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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> |
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| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.