801fec8df5
Since the value for PWMOUT Target Duty Cycle register is a 9 bit left-justified value that ranges from 0 to 511 and is contained in 2 bytes. There is an issue that the PWM signal recorded by oscilloscope would not be on consistently if we set PWM to 100% to the driver. It is because the LSB of the 9 bit would always be zero if it just left shift 8 bit for the value that write to PWMOUT Target Duty Cycle register. Therefore, revise the scale of the value that was written to pwm input from 255 to 511 and modify the value to left-justified value. Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com> Link: https://lore.kernel.org/r/20240416022211.859483-1-Delphine_CC_Chiu@wiwynn.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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.