From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D284FC43387 for ; Fri, 28 Dec 2018 22:28:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AD07521874 for ; Fri, 28 Dec 2018 22:28:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727223AbeL1W2L (ORCPT ); Fri, 28 Dec 2018 17:28:11 -0500 Received: from muru.com ([72.249.23.125]:59688 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725869AbeL1W2K (ORCPT ); Fri, 28 Dec 2018 17:28:10 -0500 Received: from atomide.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTPS id EC79380BF; Fri, 28 Dec 2018 22:28:13 +0000 (UTC) Date: Fri, 28 Dec 2018 14:28:05 -0800 From: Tony Lindgren To: Pavel Machek Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, Jarkko Nikula , Johan Hovold , Kuninori Morimoto , Marcel Partap , Merlijn Wajer , Michael Scott , NeKit , omerlle@gmail.com, Sebastian Reichel , Peter Ujfalusi , Rob Herring Subject: Re: WIP Droid 4 voice calls, GNSS & PM with a TS 27.010 serdev driver Message-ID: <20181228222805.GC6707@atomide.com> References: <20181217004450.GW6707@atomide.com> <20181227101647.GA32260@amd> <20181228193105.GW6707@atomide.com> <20181228204614.GA9431@amd> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181228204614.GA9431@amd> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, * Pavel Machek [181228 20:46]: > I have ofone with direct AT access -- > https://github.com/pavelmachek/unicsy_demo/blob/master/ofone/at.py . OK thanks, that shows some of the commands I was wondering about. > Now, ttyUSB4 provides quite a rich interface, and you can actually > select what if you want messages in text and PDU format, and if you > want modem to auto-acknowledge messages for you. So which AT command configures auto-ack of SMS? I don't need it, just wondering what all these commands do. > What kind of battery life do you get with all the optimalizations? > IIRC I was getting 7h with ttyUSB4 in use... With droid4-pending-mdm-v4.20 branch in the following state: - UARTs idled - LCD blanked (well no drivers yet droid4-sms-read.rb) - MUSB and EHCI USB modules unloaded - OHCI loaded with all the children in autosuspend via sysfs - WLAN connected - busybox acpid stopped (yup, it keeps polling something???) - MDM6600 online with AT+CFUN=1 on /dev/motmdm1 - MDM6600 notifications disabled with AT+SCRN=0 on /motmdm1 - droid4-sms-read.rb running I'm seeing droid 4 idle at 119mW according to my power supply. So I guess theoretical battery life would currently be (1785mWh * 3.8V) / 119mW = 57h. But in practise things are not completely idle and monitoring sysfs POWER_SUPPLY_POWER_AVG every 10 seconds I'm seeing something along these 10 samples: POWER_SUPPLY_POWER_AVG=138938 POWER_SUPPLY_POWER_AVG=134571 POWER_SUPPLY_POWER_AVG=505802 POWER_SUPPLY_POWER_AVG=240412 POWER_SUPPLY_POWER_AVG=134252 POWER_SUPPLY_POWER_AVG=132694 POWER_SUPPLY_POWER_AVG=571569 POWER_SUPPLY_POWER_AVG=132694 POWER_SUPPLY_POWER_AVG=190456 POWER_SUPPLY_POWER_AVG=518288 So the average based on that sampling is about 270mW and the idle time should be about 1785 * 3.8 / 270 = 25h, which is quite usable already :) Regards, Tony