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ab60075f2a
The F81532/534 had a internal configuration space to save & control IC state with address F81534_CUSTOM_ADDRESS_START (0x2f00). Layout as following: +00h: to indicate the section is valid +01h~04h: UART Mode & port availability +05h~08h: Output pin control on IC power on +09h~12h: Output pin control on working <-- New added Old driver will use +05~08h as default on working, but newer IC will configed with shutdown mode(7) in 05h~08h and working mode with RS232(1) in 09h~12h. It'll make mainstream driver not working. This patch will make mainstream driver compatible older and newer IC. If using a old IC, the +05h~08h will be 00h~06h, we'll direct apply it. If using a new IC, the +05h~08h will be 07h or larger, we'll read +09h~12h to apply newer configuration. Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com> Signed-off-by: Johan Hovold <johan@kernel.org> |
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| 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.