From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752555Ab1GFIUP (ORCPT ); Wed, 6 Jul 2011 04:20:15 -0400 Received: from hqemgate04.nvidia.com ([216.228.121.35]:18555 "EHLO hqemgate04.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751188Ab1GFIUM (ORCPT ); Wed, 6 Jul 2011 04:20:12 -0400 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Wed, 06 Jul 2011 01:20:02 -0700 Message-ID: <4E141AAF.1060405@nvidia.com> Date: Wed, 6 Jul 2011 17:19:59 +0900 From: Jinyoung Park Organization: NVIDIA User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; ko; rv:1.9.2.18) Gecko/20110616 Thunderbird/3.1.11 MIME-Version: 1.0 To: "axel.lin@gmail.com" CC: "linux-kernel@vger.kernel.org" , Richard Purdie Subject: Re: backlight: aat2870_bl: questions about setting max_current References: <1309935342.6088.5.camel@phoenix> <4E1411B1.8020102@nvidia.com> In-Reply-To: X-NVConfidentiality: public Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Axel > Yet another question: > (Just a quick check at the datasheet.) > Why not just set max_current to AAT2870_CURRENT_27_9? > Why do you want max_current to be configurable by pdata? I think that the max backlight current should be configured according to required power consumption and it could be different for each platform. So the max_current value be controlled. Thanks, Jin.