Messages in this thread | | | Date | Fri, 6 May 2016 14:38:44 +0300 | Subject | Re: [PATCH v3 03/11] dmaengine: dw: set polarity of handshake interface | From | Andy Shevchenko <> |
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On Fri, May 6, 2016 at 2:20 PM, Maarten Brock <m.brock@vanmierlo.com> wrote: >> > > >> > > + bool polarity; >> > So this variable is not very intuitively named. >> >> There is a help above. This is a property of the Synopsys DesignWare DMA >> engine. Anyone familiar with datasheet easily understands this. >> >> > >> > You end up setting somepointer->polarity = true; in a later patch. >> > >> > Since you're respining a V4 I'd suggest a name that describes a little >> > bit better than polarity. Setting polarity = true is a little bit >> > liked being asked "you you like ice-cream or apple pie" and then >> > saying "yes please". >> >> It's about handshake interface polarity, so, what about hs_polarity? > > So it means: handshake has polarity (true) or handshake has no polarity > (omnidirectional?) (false), right?
It means that handshake polarity _signal_ is inverted (true) or default (false) in terms of hardware gates.
-- With Best Regards, Andy Shevchenko
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