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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT 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 AAC9DC47404 for ; Wed, 9 Oct 2019 20:52:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 83F262190F for ; Wed, 9 Oct 2019 20:52:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731995AbfJIUw6 (ORCPT ); Wed, 9 Oct 2019 16:52:58 -0400 Received: from muru.com ([72.249.23.125]:36422 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729535AbfJIUw6 (ORCPT ); Wed, 9 Oct 2019 16:52:58 -0400 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 5BDA98162; Wed, 9 Oct 2019 20:53:31 +0000 (UTC) From: Tony Lindgren To: Sebastian Reichel Cc: linux-pm@vger.kernel.org, linux-omap@vger.kernel.org, Merlijn Wajer , Pavel Machek Subject: [PATCH 1/2] power: supply: cpcap-battery: Check voltage before orderly_poweroff Date: Wed, 9 Oct 2019 13:52:51 -0700 Message-Id: <20191009205252.9510-2-tony@atomide.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191009205252.9510-1-tony@atomide.com> References: <20191009205252.9510-1-tony@atomide.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org We can get the low voltage interrupt trigger sometimes way too early, maybe because of CPU load spikes. This causes orderly_poweroff() be called too easily. Let's check the voltage before orderly_poweroff in case it was not yet a permanent condition. We will be getting more interrupts anyways if the condition persists. Let's also show the measured voltages for low battery and battery empty warnings since we have them. Cc: Merlijn Wajer Cc: Pavel Machek Signed-off-by: Tony Lindgren --- drivers/power/supply/cpcap-battery.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/power/supply/cpcap-battery.c b/drivers/power/supply/cpcap-battery.c --- a/drivers/power/supply/cpcap-battery.c +++ b/drivers/power/supply/cpcap-battery.c @@ -562,12 +562,15 @@ static irqreturn_t cpcap_battery_irq_thread(int irq, void *data) switch (d->action) { case CPCAP_BATTERY_IRQ_ACTION_BATTERY_LOW: if (latest->current_ua >= 0) - dev_warn(ddata->dev, "Battery low at 3.3V!\n"); + dev_warn(ddata->dev, "Battery low at %imV!\n", + latest->voltage / 1000); break; case CPCAP_BATTERY_IRQ_ACTION_POWEROFF: - if (latest->current_ua >= 0) { + if (latest->current_ua >= 0 && latest->voltage >= 0 && + latest->voltage <= 3100000) { dev_emerg(ddata->dev, - "Battery empty at 3.1V, powering off\n"); + "Battery empty at %imV, powering off\n", + latest->voltage / 1000); orderly_poweroff(true); } break; -- 2.23.0