On Mo, 2016-11-28 at 17:04 -0600, Grygorii Strashko wrote: > --- a/Documentation/devicetree/bindings/net/keystone-netcp.txt > +++ b/Documentation/devicetree/bindings/net/keystone-netcp.txt > @@ -127,6 +127,16 @@ Optional properties: > The number of external time stamp channels. > The different CPTS versions might support up 8 > external time stamp channels. if absent - unsupported. > + - cpts-ts-comp-length: > + Enable time stamp comparison event and TS_COMP signal output > + generation when CPTS counter reaches a value written to > + the TS_COMP_VAL register. > + The generated pulse width is 3 refclk cycles if this property > + has no value (empty) or, otherwise, it should specify desired > + pulse width in number of refclk periods - max value 2^16. > + TS_COMP functionality will be disabled if not present. > + - cpts-ts-comp-polarity-low: > + Set polarity of TS_COMP signal to low. Default is hight.
Why is this configured via DT? Are the values fixed for a given board, depending on external components? Couldn't this be configured somewhere else? Regards, Jan -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
