On Tuesday 08 December 2015 09:42:26 Peter Ujfalusi wrote: > On 12/04/2015 11:51 PM, Tony Lindgren wrote: > >> > >> Please just drop the /bits/ 16 and use normal cells. > > > > Yeah agreed, makes things less confusing for sure > > 4.4 will be the first kernel where we will have the new eDMA bindings. I have > chosen to use 16bit array for specifying the channels used for memcpy > (ti,edma-memcpy-channels) and for the reserving paRAM slots > (ti,edma-reserved-slot-ranges). As of now we have maximum of 64 channels and > 512 paRAM slots. 16bit is more than enough to store this information and it > even gives us enough room if ever in the future these numbers are going to > increase (which they are not). > > But in order to change them to 32bit the driver needs to be changed as well. > Currently we do not have drivers (in 4.4) using the new bindings, 4.4 is not > yet out, so it might be possible to change the binding document and the driver > to use 32bit arrays. The driver internally uses 16bit type for these which I'm > not going to change, but the code parsing the DT needs to be adjusted for the > new data type. > > If Vinod is willing to take update for the DT binding of eDMA for 4.4-rc, I > can cook up the patch(es) to do so. I hadn't realized that it was already in 4.4-rc. The change should be trivial enough though, so I'd still do it. If Vinod would rather not change it now, it's not overly important though. Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
