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There are 12 general purpose timers on am65 that can be used for things like PWM using pwm-omap-dmtimer driver. There are also additional four timers in the MCU domain that do not have interrupts routable for Linux. We configure the timers with the 25 MHz input clock by default as the 32.768 kHz clock may not be wired on the device. We leave the MCU domain timers clock mux unconfigured, and mark the MCU domain timers reserved. The MCU domain timers are likely reserved by the software for the ESM module. Compared to am64, the timer clocks are different on am65. And the MCU timers are at a different IO address. Then j72 adds more timers compared to am65 with a total of 30 timers. And the j72 clocks are different. To avoid duplication for dtsi files, eventually we may want to consider adding timer specific shared dtsi files with the timer clocks mapped using SoC specific files in include/dt-bindings/clock. But let's get am65 timers usable first. Cc: Keerthy <j-keerthy@ti.com> Cc: Nishanth Menon <nm@ti.com> Cc: Vignesh Raghavendra <vigneshr@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Nishanth Menon <nm@ti.com> Link: https://lore.kernel.org/r/20221115154842.7755-3-tony@atomide.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.