lkml.org 
[lkml]   [2017]   [Dec]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v6 0/9] i2c: document DMA handling and add helpers for it
On Sun, Dec 03, 2017 at 08:43:47PM +0100, Wolfram Sang wrote:

> > It's a bit different in that it's much more likely that a SPI controller
> > will actually do DMA than an I2C one since the speeds are higher and
> > there's frequent applications that do large transfers so it's more
> > likely that people will do the right thing as issues would tend to come
> > up if they don't.

> Yes, for SPI this is true. I was thinking more of regmap with its
> usage of different transport mechanisms. But I guess they should all be
> DMA safe because some of them need to be DMA safe?

Possibly. Hopefully. I guess we'll find out.
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2017-12-04 23:07    [W:0.103 / U:0.164 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site