[PATCH 08/25] ARM: shmobile: r8a7790: sound enables Audio DMAC peri peri entry on DTSI

[Simon Horman]

On Tue, Nov 18, 2014 at 12:03:50AM +0000, Kuninori Morimoto wrote:
> 
> Hi Arnd
> 
> > >                                 "mem_src6",     "src6_mem",
> > >                                 "mem_src7",     "src7_mem",
> > >                                 "mem_src8",     "src8_mem",
> > > -                               "mem_src9",     "src9_mem";
> > > +                               "mem_src9",     "src9_mem",
> > > +
> > > +                               "src0_ssiu0",           "src1_ssiu0",           "src2_ssiu0",           "src3_ssiu0",           "src4_ssiu0",
> > > +                               "src0_ssiu1",           "src1_ssiu1",           "src2_ssiu1",           "src3_ssiu1",           "src4_ssiu1",
> > > +                               "src0_ssiu2",           "src1_ssiu2",           "src2_ssiu2",           "src3_ssiu2",           "src4_ssiu2",
> > > 
> > 
> > I have to note that this looks rather weird and that none of the names
> > are documented in the binding.
> > 
> > Can you explain why this device uses over 100 DMA channels and put the
> > exact naming rules into the binding?
> > Do you expect all channels to be in use simultaneously?
> 
> This device has 10 sound channels, and using 3 kind of IPs.
> Then, data input/output needs DMA channel which needs specific ID to using.
> Above name has ID pair for it, so there is much combination. 
> These specific ID is based on SoC, not board.
> Sound driver / DMAEngine can get specific ID from above.
> 
> Indeed binding itself was not documented yet.
> I will add it ASAP.

Hi Arnd,

please let me know if a revised pull-request is in order.
v3.18-rc6 is getting awfully close.