linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Wolfram Sang <wsa@kernel.org>
To: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Cc: "Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>,
	"Andreas Färber" <afaerber@suse.de>,
	"Peter Rosin" <peda@axentia.se>,
	linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-actions@lists.infradead.org
Subject: Re: [PATCH 2/3] i2c: owl: Add support for atomic transfers
Date: Tue, 3 Nov 2020 21:57:18 +0100	[thread overview]
Message-ID: <20201103205718.GC1583@kunai> (raw)
In-Reply-To: <1af37112fafd6cf069dfe864560f77996f57d80d.1602190168.git.cristian.ciocaltea@gmail.com>

[-- Attachment #1: Type: text/plain, Size: 641 bytes --]

On Fri, Oct 09, 2020 at 12:44:40AM +0300, Cristian Ciocaltea wrote:
> Atomic transfers are required to properly power off a machine through
> an I2C controlled PMIC, such as the Actions Semi ATC260x series.
> 
> System shutdown may happen with interrupts being disabled and, as a
> consequence, the kernel may hang if the driver does not support atomic
> transfers.
> 
> This functionality is essentially implemented by polling the FIFO
> Status register until either Command Execute Completed or NACK Error
> bits are set.
> 
> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>

Applied to for-next, thanks!


[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]

  parent reply	other threads:[~2020-11-03 21:32 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-08 21:44 [PATCH 0/3] Improve Actions Semi Owl I2C driver Cristian Ciocaltea
2020-10-08 21:44 ` [PATCH 1/3] i2c: owl: Clear NACK and BUS error bits Cristian Ciocaltea
2020-10-10 11:16   ` Wolfram Sang
2020-10-11 14:09   ` Manivannan Sadhasivam
2020-10-12  9:05     ` Cristian Ciocaltea
2020-10-08 21:44 ` [PATCH 2/3] i2c: owl: Add support for atomic transfers Cristian Ciocaltea
2020-10-11 14:09   ` Manivannan Sadhasivam
2020-10-12  9:07     ` Cristian Ciocaltea
2020-11-03 20:57   ` Wolfram Sang [this message]
2020-10-08 21:44 ` [PATCH 3/3] i2c: owl: Enable asynchronous probing Cristian Ciocaltea
2020-10-11 14:06   ` Manivannan Sadhasivam
2020-10-12  9:08     ` Cristian Ciocaltea
2020-11-03 20:57   ` Wolfram Sang

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20201103205718.GC1583@kunai \
    --to=wsa@kernel.org \
    --cc=afaerber@suse.de \
    --cc=cristian.ciocaltea@gmail.com \
    --cc=linux-actions@lists.infradead.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-i2c@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=manivannan.sadhasivam@linaro.org \
    --cc=peda@axentia.se \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).