linux-kernel - Re: [PATCH v2] i2c: tegra: Add delay before reset the controller

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 02 Apr 2012 13:58:56 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	Alok Chauhan <alokc@...dia.com>
CC:	khali@...ux-fr.org, ben-linux@...ff.org, w.sang@...gutronix.de,
	olof@...om.net, bones@...retlab.ca, omaplinuxkernel@...il.com,
	ccross@...roid.com, ldewangan@...dia.com,
	linux-tegra@...r.kernel.org, linux-i2c@...r.kernel.org,
	dgreid@...omium.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] i2c: tegra: Add delay before reset the controller

On 04/01/2012 11:53 PM, Alok Chauhan wrote:
> NACK interrupt generated before I2C controller generates
> the STOP condition on bus. In Software, because of this
> reset of controller is happening before I2C controller could
> complete STOP condition. So wait for some time before resetting
> the controller so that STOP condition has delivered properly on bus.
> 
> Added delay of 2 clock period before reset the
> controller in case of NACK error.
> 
> Signed-off-by: Alok Chauhan <alokc@...dia.com>

Acked-by: Stephen Warren <swarren@...dotorg.org>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/