79ece9b292
A driver that supports I2C_DRV_ACPI_WAIVE_D0_PROBE is not expected to power off a device that it has not powered on previously. For devices operating in "full_power" mode, the first call to `i2c_acpi_waive_d0_probe` will return 0, which means that the device will be turned on with `dev_pm_domain_attach`. If probe fails the second call to `i2c_acpi_waive_d0_probe` will return 1, which means that the device will not be turned off. This is, it will be left in a different power state. Lets fix it. Reviewed-by: Hidenori Kobayashi <hidenorik@chromium.org> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org> Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Cc: stable@vger.kernel.org Fixes: b18c1ad685d9 ("i2c: Allow an ACPI driver to manage the device's power state during probe") Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
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.