Messages in this thread | | | From | Kuninori Morimoto <> | Subject | Re: [PATCH v3] dmaengine: rcar-dmac: don't use DMAC error interrupt | Date | Fri, 15 Jun 2018 07:15:35 +0000 |
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Hi Geert
> > rcar-dmac has 2 types of interrupt, 1) error IRQ (for all), > > 2) IRQ for each channels. > > If error happens on some channels, the error IRQ will be handled > > by 1), and "all" channels will be restarted. > > But in this design, error handling itself will be problem for > > non error channel users. > > This patch removes 1) handler, and handles error IRQ on 2) > > Thank you, that explains the rationale!
Thanks
> BTW, how can you trigger an error, for testing?
We created local patch to break address alignment.
Best regards --- Kuninori Morimoto
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