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Groups > linux.kernel > #1242726
| From | Arnd Bergmann <arnd@arndb.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 1/4] dt-bindings: Document the STM32 DMA bindings |
| Date | 2015-10-08 22:50 +0200 |
| Message-ID | <qhqit-660-1@gated-at.bofh.it> (permalink) |
| References | <qhliO-7tw-11@gated-at.bofh.it> <qhp34-4ok-19@gated-at.bofh.it> <qhpZ7-5Jz-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thursday 08 October 2015 22:25:50 M'boumba Cedric Madianga wrote: > > > > How do you know which channels are available for memory-to-memory > > transfers? > For memory-to-memory transfer we don't need any channel/request combination. > We look for any available channel in the channel list to execute our transfer. > So, as often as possible, we expect that a peripheral release his > channel after transfering data. > In that way, we always should have at least one channel available for > that kind of transfer. > Ah, got it. So the use of virtual channels in this driver makes MEM2MEM transfers work, but is otherwise not required. Thanks for the clarification. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH 1/4] dt-bindings: Document the STM32 DMA bindings M'boumba Cedric Madianga <cedric.madianga@gmail.com> - 2015-10-08 17:30 +0200
Re: [PATCH 1/4] dt-bindings: Document the STM32 DMA bindings Arnd Bergmann <arnd@arndb.de> - 2015-10-08 17:50 +0200
Re: [PATCH 1/4] dt-bindings: Document the STM32 DMA bindings "M'boumba Cedric Madianga" <cedric.madianga@gmail.com> - 2015-10-08 18:10 +0200
Re: [PATCH 1/4] dt-bindings: Document the STM32 DMA bindings Arnd Bergmann <arnd@arndb.de> - 2015-10-08 21:30 +0200
Re: [PATCH 1/4] dt-bindings: Document the STM32 DMA bindings "M'boumba Cedric Madianga" <cedric.madianga@gmail.com> - 2015-10-08 22:30 +0200
Re: [PATCH 1/4] dt-bindings: Document the STM32 DMA bindings Arnd Bergmann <arnd@arndb.de> - 2015-10-08 22:50 +0200
Re: [PATCH 1/4] dt-bindings: Document the STM32 DMA bindings Maxime Coquelin <mcoquelin.stm32@gmail.com> - 2015-10-12 21:20 +0200
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