From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Fri, 13 Jul 2007 15:48:49 +0100 (BST) Received: from localhost.localdomain ([127.0.0.1]:5322 "EHLO dl5rb.ham-radio-op.net") by ftp.linux-mips.org with ESMTP id S20023694AbXGMOsW (ORCPT ); Fri, 13 Jul 2007 15:48:22 +0100 Received: from denk.linux-mips.net (denk.linux-mips.net [127.0.0.1]) by dl5rb.ham-radio-op.net (8.14.1/8.13.8) with ESMTP id l6DEmKGo008791; Fri, 13 Jul 2007 15:48:20 +0100 Received: (from ralf@localhost) by denk.linux-mips.net (8.14.1/8.14.1/Submit) id l6DEmIwD008790; Fri, 13 Jul 2007 15:48:18 +0100 Date: Fri, 13 Jul 2007 15:48:18 +0100 From: Ralf Baechle To: Andrew Morton Cc: "Maciej W. Rozycki" , Mark Mason , Andy Whitcroft , Randy Dunlap , Joel Schopp , linux-mips@linux-mips.org, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] sb1250-duart.c: SB1250 DUART serial support Message-ID: <20070713144818.GC8190@linux-mips.org> References: <20070712114712.de5d6c9d.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070712114712.de5d6c9d.akpm@linux-foundation.org> User-Agent: Mutt/1.5.14 (2007-02-12) Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 15772 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ralf@linux-mips.org Precedence: bulk X-list: linux-mips On Thu, Jul 12, 2007 at 11:47:12AM -0700, Andrew Morton wrote: > There is no power management support in this driver. There is hardly anything software could do to safe power on Sibyte SOCs. Just like most other MIPS SOCs power managment is mostly left to the hardware which does it by using extensive clockgating and other design techniques. As a SW person I can't protest that approach :-) Ralf