Messages in this thread | | | Date | Fri, 25 Jan 2013 15:00:19 +0530 | Subject | Re: [PATCH v3.5] dw_dmac: return proper residue value | From | Viresh Kumar <> |
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On Fri, Jan 25, 2013 at 2:49 PM, Andy Shevchenko <andy.shevchenko@gmail.com> wrote: > On Fri, Jan 25, 2013 at 11:07 AM, Viresh Kumar <viresh.kumar@linaro.org> wrote: >> Who is going to right on ctlhi/lo?
Ahh, my English :( (/s/right/write)
> dwc_do_single_block() > >> we write to ctlhi/lo only when we program new >> transfer. and that is not going to happen while we are in middle of a transfer. > > We have got a tasklet running inside tx_status call. Isn't possible? > tasklet runs scan_descriptors, that continues transfer in soft LLP mode.
But we have just executed scan_descriptor() before this function and it doesn't look possible that transfer wasn't over then and inbetween these calls we got an interrupt, scheduled an tasklet and called dwc_do_single_block() :)
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