82f00b24f5
Before hardware V3, hardwares do not provide the feature registers, driver resolves hardware differences based on the hardware version. As a result, the driver does not support the new hardware. Hardware V3 and later versions support to obtain hardware features, such as power-gating management and doorbell isolation, through the hardware registers. To be compatible with later hardware versions, the features of the current device is obtained by reading the hardware registers instead of the hardware version. Signed-off-by: Weili Qian <qianweili@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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.