Hi Russell, On 26 August 2011 19:53, Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> wrote: > > On Fri, Aug 26, 2011 at 08:16:11AM -0500, Rob Herring wrote: > > Thomas, > > > > On 08/26/2011 03:40 AM, Thomas Abraham wrote: > > > + - arm,pl330-peri-reqs: number of actual peripheral requests connected to the > > > + dma controller. Maximum value is 32. > > > > Perhaps could be a bitmask for sparsely populated requests. May not > > matter since phandles will define the connections. > > > > Can be optional and not present means 00 requests (mem-to-mem only). > > The number of peripheral requests is readable from configuration register > zero, so this is discoverable. Why should we put this information into > DT if its provided by the hardware? > > The number of DMA channels available is also configurable by the SoC > designer, yet you don't specify that in DT. And there's a whole bunch > of other configuration options available to the SoC designer, most of > which are discoverable from the configuration registers. > > So, I don't think you should be specifying the number of requests. Ok. The property specifying the number of peripheral requests will be dropped. Thanks, Thomas. -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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