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Write to trigger register(OMAP_TIMER_TRIGGER_REG) will load the value in Load register(OMAP_TIMER_LOAD_REG) into Counter register (OMAP_TIMER_COUNTER_REG). omap_dm_timer_set_load() writes into trigger register every time load register is updated. When timer is configured in pwm mode, this causes disruption in current pwm cycle, which is not expected especially when pwm is used as PPS signal for synchronized PTP clocks. So do not write into trigger register on updating the period. Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200305082715.15861-5-lokeshvutla@ti.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 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.