All of lore.kernel.org
 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 --]

WARNING: multiple messages have this Message-ID (diff)
From: Wolfram Sang <wsa@kernel.org>
To: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Cc: linux-actions@lists.infradead.org, linux-kernel@vger.kernel.org,
	"Peter Rosin" <peda@axentia.se>,
	linux-i2c@vger.kernel.org,
	"Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>,
	"Andreas Färber" <afaerber@suse.de>,
	linux-arm-kernel@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 #1.1: 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 #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]

[-- Attachment #2: Type: text/plain, Size: 176 bytes --]

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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

Thread overview: 26+ 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 ` Cristian Ciocaltea
2020-10-08 21:44 ` [PATCH 1/3] i2c: owl: Clear NACK and BUS error bits Cristian Ciocaltea
2020-10-08 21:44   ` Cristian Ciocaltea
2020-10-10 11:16   ` Wolfram Sang
2020-10-10 11:16     ` Wolfram Sang
2020-10-11 14:09   ` Manivannan Sadhasivam
2020-10-11 14:09     ` Manivannan Sadhasivam
2020-10-12  9:05     ` Cristian Ciocaltea
2020-10-12  9:05       ` Cristian Ciocaltea
2020-10-08 21:44 ` [PATCH 2/3] i2c: owl: Add support for atomic transfers Cristian Ciocaltea
2020-10-08 21:44   ` Cristian Ciocaltea
2020-10-11 14:09   ` Manivannan Sadhasivam
2020-10-11 14:09     ` Manivannan Sadhasivam
2020-10-12  9:07     ` Cristian Ciocaltea
2020-10-12  9:07       ` Cristian Ciocaltea
2020-11-03 20:57   ` Wolfram Sang [this message]
2020-11-03 20:57     ` Wolfram Sang
2020-10-08 21:44 ` [PATCH 3/3] i2c: owl: Enable asynchronous probing Cristian Ciocaltea
2020-10-08 21:44   ` Cristian Ciocaltea
2020-10-11 14:06   ` Manivannan Sadhasivam
2020-10-11 14:06     ` Manivannan Sadhasivam
2020-10-12  9:08     ` Cristian Ciocaltea
2020-10-12  9:08       ` Cristian Ciocaltea
2020-11-03 20:57   ` Wolfram Sang
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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.