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This patch adds support for Over Current Protection (OCP) to the Realtek USB card reader driver. The OCP mechanism protects the hardware by detecting and handling current overload conditions. This implementation includes: - Register configurations to enable OCP monitoring. - Handling of OCP interrupt events and associated error reporting. - Card power management changes in response to OCP triggers. This enhancement improves the robustness of the driver when operating in environments where electrical anomalies may occur, particularly with SD and MS card interfaces. Signed-off-by: Ricky Wu <ricky_wu@realtek.com> Link: https://lore.kernel.org/r/20250812030811.2426112-1-ricky_wu@realtek.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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.