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Some devices have multiple I2cSerialBus resources and for things to work an i2c-client must be instantiated for each, each with its own i2c_device_id. Normally we only instantiate an i2c-client for the first resource, using the ACPI HID as id. This commit adds a list of HIDs of devices, which need multiple i2c-clients instantiated from a single fwnode, to acpi_device_enumeration_by_parent and makes acpi_device_enumeration_by_parent return false for these devices so that a platform device will be instantiated. This allows the drivers/platform/x86/i2c-multi-instantiate.c driver, which knows which i2c_device_id to use for each resource, to bind to the fwnode and initiate an i2c-client for each resource. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.