Hi Sekhar, On 03/12/2021 17:50, Muni Sekhar wrote: > Hi All, > > We have a Digital PLL with 64 bit timer counter hardware and the > counter is accessible from the CPU over the PCIe bus. > > Is it possible to add this timer counter hardware as new clocksource > driver? To do this, can someone please point me to the existing > reference source code(or patch) for this task. You can refer to the drivers located in drivers/clocksource git annotate on one of the driver can give you the initial commit where recent submissions explain the timer internals. > Suppose if it is possible to add a new clocksource driver for this > hardware then does any userspace get_timestamp* API would get the time > from this new hardware? It should if the timer is selected as the clocksource -- <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | <http://twitter.com/#!/linaroorg> Twitter | <http://www.linaro.org/linaro-blog/> Blog _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
