From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1032241Ab2COUB2 (ORCPT ); Thu, 15 Mar 2012 16:01:28 -0400 Received: from na3sys009aog123.obsmtp.com ([74.125.149.149]:43830 "EHLO na3sys009aog123.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031929Ab2COUBZ (ORCPT ); Thu, 15 Mar 2012 16:01:25 -0400 Message-ID: <4F624A8B.7040407@ti.com> Date: Fri, 16 Mar 2012 01:31:15 +0530 From: Aneesh V User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.21) Gecko/20110831 Thunderbird/3.1.13 MIME-Version: 1.0 To: Greg KH CC: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org Subject: Re: [PATCH v2 0/7] Add TI EMIF SDRAM controller driver References: <1331835457-5390-1-git-send-email-aneesh@ti.com> <20120315190444.GE11142@kroah.com> In-Reply-To: <20120315190444.GE11142@kroah.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Friday 16 March 2012 12:34 AM, Greg KH wrote: > On Thu, Mar 15, 2012 at 11:47:30PM +0530, Aneesh V wrote: >> Add a driver for the EMIF SDRAM controller used in TI SoCs >> >> EMIF is an SDRAM controller that supports, based on its revision, >> one or more of LPDDR2/DDR2/DDR3 protocols.This driver adds support >> for LPDDR2. >> >> The driver supports the following features: >> - Calculates the DDR AC timing parameters to be set in EMIF >> registers using data from the device data-sheets and based >> on the DDR frequency. If data from data-sheets is not available >> default timing values from the JEDEC spec are used. These >> will be safe, but not necessarily optimal >> - API for changing timings during DVFS or at boot-up > > Is this a kernel/user API, or just an in-kernel API? That's just an in-kernel API or more precisely callbacks to be registered for DDR frequency change events. thanks, Aneesh