From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [RESEND #3/patch 2.6.26-rc6] net/enc28j60: low power mode Date: Tue, 17 Jun 2008 23:26:27 -0400 Message-ID: <48588063.4020304@garzik.org> References: <200806122138.06674.david-b@pacbell.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, Claudio Lanconelli , lkml To: David Brownell Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:40551 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758108AbYFRD0a (ORCPT ); Tue, 17 Jun 2008 23:26:30 -0400 In-Reply-To: <200806122138.06674.david-b@pacbell.net> Sender: netdev-owner@vger.kernel.org List-ID: David Brownell wrote: > Keep enc28j60 chips in low-power mode when they're not in use. > At typically 120 mA, these chips run hot even when idle; this > low power mode cuts that power usage by a factor of around 100. > > This version provides a generic routine to poll a register until > its masked value equals some value ... e.g. bit set or cleared. > It's basically what the previous wait_phy_ready() did, but this > version is generalized to support the handshaking needed to > enter and exit low power mode. > > Signed-off-by: David Brownell > Signed-off-by: Claudio Lanconelli > --- > Previously sent: 18-May, 19-February; there were several > previous iterations too ... > > drivers/net/enc28j60.c | 82 ++++++++++++++++++++++++++++++++++--------------- > 1 file changed, 58 insertions(+), 24 deletions(-) applied