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5eb6d3561f
Add logic to initialize I2C adapters with a specific ID if available,
improving device identification and configuration.
For mixed buses, in addition to the i3c alias, an i2c alias can be added to
assign a fixed bus number to the i2c adapter.
This allows an alias node such as:
aliases {
i2c2 = &mixed_bus_a,
i3c2 = &mixed_bus_a,
i3c4 = &mixed_bus_b,
};
/* assigned "i3c-2" and "i2c-2" */
mixed_bus_a: i3c-master {
};
If there is no i2c alias for a mixed bus, the i2c adapter numbers will
remain as is and will be assigned starting after the highest fixed bus
number.
/* assigned "i3c-4" and likely assigned "i2c-3" */
mixed_bus_b: i3c-master {
};
Signed-off-by: Defa Li <defa.li@mediatek.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20241212091818.8591-1-defa.li@mediatek.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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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 reStructuredText 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.