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575f10dc64
Support blinking using the PCA955x chip. Use PWM0 for blinking instead of LED_HALF brightness. Since there is only one frequency and brightness register for any blinking LED, track the blink state of each LED and only support one HW blinking frequency. If another frequency is requested, fallback to software blinking. In addition, blinked LEDs can only use full brightness in order to maintain 50% duty cycle, which is required for the specified blink rate. Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20250212143038.1416501-5-eajames@linux.ibm.com Signed-off-by: Lee Jones <lee@kernel.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.