From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932269AbcLSOSN (ORCPT ); Mon, 19 Dec 2016 09:18:13 -0500 Received: from mail.free-electrons.com ([62.4.15.54]:45144 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932170AbcLSOSK (ORCPT ); Mon, 19 Dec 2016 09:18:10 -0500 Subject: Re: [PATCH v2] ARM: dts: sun8i: add opp-v2 table for A33 To: Icenowy Zheng , Chen-Yu Tsai , Maxime Ripard References: <20161215182754.33921-1-icenowy@aosc.xyz> <20161219084652.kiqdkiewu5tujlyd@lukather> <11975791482156406@web2g.yandex.ru> Cc: Hans de Goede , devicetree , linux-arm-kernel , linux-kernel , linux-clk , linux-sunxi From: Quentin Schulz Message-ID: <8af4327f-b779-9d97-347f-bfe4b8303a60@free-electrons.com> Date: Mon, 19 Dec 2016 15:18:03 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 MIME-Version: 1.0 In-Reply-To: <11975791482156406@web2g.yandex.ru> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On 19/12/2016 15:06, Icenowy Zheng wrote: > > After proper testing of A23 ccu, the operating points can also apply to A23. > (According to A23 devices' fex) > I disagree. I've looked into using the same operating points for A23 and A33 for CPUfreq and I came to the conclusion that not all A23-based boards share the same operating points. You can find the fex files for the different boards here: https://github.com/linux-sunxi/sunxi-boards/tree/master/sys_config/a23 After gathering all supported frequencies/voltages for each A23-based boards, I found that only the following frequencies and voltages are supported by all A23-based boards: - 1008 MHz, 1220 mV - 816 MHz, 1120 mV - 600 MHz, 1040 mV Quentin -- Quentin Schulz, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com