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The default UIC command timeout still remains 500ms. Allow platform drivers to override the UIC command timeout if desired. In a real product, the 500ms timeout value is probably good enough. However, during the product development where there are a lot of logging and debug messages being printed to the UART console, interrupt starvations happen occasionally because the UART may print long debug messages from different modules in the system. While printing, the UART may have interrupts disabled for more than 500ms, causing UIC command timeout. The UIC command timeout would trigger more printing from the UFS driver, and eventually a watchdog timeout may occur unnecessarily. Add support for overriding the UIC command timeout value with the newly created uic_cmd_timeout kernel module parameter. Default value is 500ms. Supported values range from 500ms to 2 seconds. Signed-off-by: Bao D. Nguyen <quic_nguyenb@quicinc.com> Link: https://lore.kernel.org/r/e4e1c87f3f867f270a3d4b5d57a00139ff0e9741.1721792309.git.quic_nguyenb@quicinc.com Suggested-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Peter Wang <peter.wang@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.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 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.