Messages in this thread | | | From | Geert Uytterhoeven <> | Date | Fri, 15 Jun 2018 08:20:17 +0200 | Subject | Re: [PATCH v3] dmaengine: rcar-dmac: don't use DMAC error interrupt |
| |
Hi Morimoto-san,
On Fri, Jun 15, 2018 at 2:53 AM Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> wrote: > From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> > > 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!
BTW, how can you trigger an error, for testing?
Thanks again!
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
| |