Hi Sylwester, On Thu, May 16, 2013 at 4:13 PM, Sylwester Nawrocki <sylvester.nawrocki@xxxxxxxxx> wrote: > Hi, > > > On 05/16/2013 06:53 AM, Prabhakar Lad wrote: >>>> [Snip] >> May be we rename "field-active" to "fid-pol" ? > > > I guess we failed to clearly describe the 'field-even-active' property then. > It seems to be exactly what you need. > > It is not enough to say e.g. field-active = <1>;, because it would not have > been clear which field it refers to, odd or even ? Unlike VSYNC, HSYNC both > levels of the FIELD signal are "active", there is no "idle" state for FIELD. > > So field-even-active = <1>; means the FIELD signal at logic high level > indicates EVEN field _and_ this implies FIELD = 0 indicates ODD field, i.e. > > FIELD = 0 => odd field > FIELD = 1 => even field > > For field-even-active = <0>; it is the other way around: > > FIELD = 0 => even field > FIELD = 1 => odd field > Thanks that makes it clear :) > It looks like only "sync-on-green" property is missing. BTW, is it really > commonly used ? What drivers would need it ? > I'm not against making it a common property, it's just first time I see it. > I have comes across a decoder tvp7002 which uses it, may be Laurent/Hans/Sakari may point much more devices. Regards, --Prabhakar Lad -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
