netdev - Re: [PATCH net-next v2] candev: allow SJW user setting for bittiming calculation

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Message-ID: <4E822C72.8000508@grandegger.com>
Date:	Tue, 27 Sep 2011 22:05:06 +0200
From:	Wolfgang Grandegger <wg@...ndegger.com>
To:	Oliver Hartkopp <socketcan@...tkopp.net>
CC:	David Miller <davem@...emloft.net>,
	SocketCAN Core Mailing List <socketcan-core@...ts.berlios.de>,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next v2] candev: allow SJW user setting for bittiming
 calculation

On 09/22/2011 12:28 PM, Oliver Hartkopp wrote:
> This patch adds support for SJW user settings to not set the synchronization
> jump width (SJW) to 1 in any case when using the in-kernel bittiming
> calculation.
> 
> The ip-tool from iproute2 already supports to pass the user defined SJW
> value. The given SJW value is sanitized with the controller specific sjw_max
> and the calculated tseg2 value. As the SJW can have values up to 4 providing
> this value will lead to the maximum possible SJW automatically. A higher SJW
> allows higher controller oscillator tolerances.
> 
> Signed-off-by: Oliver Hartkopp <socketcan@...tkopp.net>

Acked-by: Wolfgang Grandegger <wg@...ndegger.com>

Thanks,

Wolfgang.
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