On Mon, Dec 17, 2018 at 10:20:39PM +0200, sakari.ailus@xxxxxx wrote: > Hi Maxime, > > On Mon, Dec 17, 2018 at 04:49:21PM +0100, Maxime Ripard wrote: > > Hi Sakari, > > > > Thanks for your feedback. > > > > On Thu, Dec 13, 2018 at 10:49:28PM +0200, sakari.ailus@xxxxxx wrote: > > > > + /** > > > > + * @lanes: > > > > + * > > > > + * Number of active data lanes used for the transmissions. > > > > > > Could you add that these are the first "lanes" number of lanes from what > > > are available? > > > > I'm not quite sure I understood this part though, what did you mean? > > A number of lanes are routed between the two devices on hardware, and this > field is specifying how many of them are in use. In order for the bus to > function, both ends need to be in agreement on which of these lanes are > actually being used. The current practice I've seen without exceptions is > that these are the first n lanes. Ah, right, I get it now, thanks! Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
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