From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754012AbcESIFi (ORCPT ); Thu, 19 May 2016 04:05:38 -0400 Received: from hqemgate16.nvidia.com ([216.228.121.65]:16508 "EHLO hqemgate16.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751513AbcESIFH (ORCPT ); Thu, 19 May 2016 04:05:07 -0400 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Thu, 19 May 2016 01:03:00 -0700 Message-ID: <573D70E8.3070802@nvidia.com> Date: Thu, 19 May 2016 13:23:12 +0530 From: Laxman Dewangan User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: , , , CC: , , , Subject: Re: [PATCH V5 0/3] soc/tegra: Add support for IO pads power and voltage control References: <1463055706-17744-1-git-send-email-ldewangan@nvidia.com> In-Reply-To: <1463055706-17744-1-git-send-email-ldewangan@nvidia.com> X-Originating-IP: [10.19.65.30] X-ClientProxiedBy: BGMAIL101.nvidia.com (10.25.59.10) To bgmail102.nvidia.com (10.25.59.11) 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 Hi Jon/Thierry, On Thursday 12 May 2016 05:51 PM, Laxman Dewangan wrote: > The IO pins of Tegra SoCs are grouped for common control of IO interface > like setting voltage signal levels and power state of the interface. The > group is generally referred as IO pads. The power state and voltage control > of IO pins can be done at IO pads level. > > Tegra124 onwards IO pads support the power down state when system is > active. The voltage levels on IO pads are auto detected on Tegra124/ > Tegra132 but it is not in Tegra210. For Tegra210, the SW need to > explicitly configure the voltage levels of IO pads > > This series add the interface for the IO pad power state and voltage > configurations. Modifies the client to use new APIs. > Register the child devices to provide the client interface to configure > IO pads power state and voltage from Device tree. > Any comment on this series?