Messages in this thread | | | Subject | Re: [PATCH v3 03/11] dmaengine: dw: set polarity of handshake interface | From | Andy Shevchenko <> | Date | Fri, 06 May 2016 21:08:03 +0300 |
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On Fri, 2016-05-06 at 17:48 +0200, Maarten Brock 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. > Would it not be better then to name it handshake_inverted ? That is > something you can ask and answer with true or false. >
I would stick for now with hs_polarity as agreed with Bryan. Without specification any (more or less short) name will suck anyway.
-- Andy Shevchenko <andriy.shevchenko@linux.intel.com> Intel Finland Oy
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