From patchwork Mon Jan 2 09:13:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sicelo A. Mhlongo" X-Patchwork-Id: 13086597 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D500FC46467 for ; Mon, 2 Jan 2023 09:14:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231736AbjABJN7 (ORCPT ); Mon, 2 Jan 2023 04:13:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37458 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231890AbjABJN5 (ORCPT ); Mon, 2 Jan 2023 04:13:57 -0500 Received: from mail-wm1-x32d.google.com (mail-wm1-x32d.google.com [IPv6:2a00:1450:4864:20::32d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9E74F21A1; Mon, 2 Jan 2023 01:13:56 -0800 (PST) Received: by mail-wm1-x32d.google.com with SMTP id ay2-20020a05600c1e0200b003d22e3e796dso20206876wmb.0; Mon, 02 Jan 2023 01:13:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=ce6OmGFq9VZBpGi1vGDY3sSx/S75wdoRU07kB2bZ+9c=; b=EoquokVRhdtRVmPK97+iSE9uIv6hKX8ijtFzvLhlHxCQgVpsA/Klrh3kAwvmp0I9GN mT7ApOawKh6TRpw0JR23VMK8dGs77ilsEb3PxzEkGfxtB5+slDO/xkeyN5klkwApnrQ5 T/U5qy38glE2KT/4QQq5mMKtozmgU6fGbcY+9xx22QnRaNLD7J7YzwBosFbdUgbpXuLX 40NArEMJdV0GHO6ioE9Nl3NllJtW0BKD+P4AdDMfXy3BF6Ub6YYzlh9wP1QHcD0tCuH8 AHekCt22XUdTKCBVdjWvTrn6drZgLVRnQuEOmQdatJmCGQHTWPsosqCh7Yzj6Wlo7ueq ku3w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=ce6OmGFq9VZBpGi1vGDY3sSx/S75wdoRU07kB2bZ+9c=; b=5QaulAi87A8G3p4CQZxmJTQg8DIqZg5P1sdi5tatQdK38OjS9+WZdnfaSDqqeEYIVU m63uQ9/o59WSL2Ux2vr/j5lbjn+TiFA0k6QFxekkfEmXZb/9UZUgP+ZPUP3TMn1PQdHr e6Jcq9Rm6e9TGSyKH0ftC6rMoPBLe7nSmKTliwOJntAWhLoQVbeubrb1Mh4LF85SZvhd TPkNtsP6Vm6Tnm4GP+vSInYu3bhb49RAzCDetNBvRXG5TQEbVr0hP/2lAYCOlcpPzEgR 0adZZ+ALY4QcEw6td3R+6rqi07L3fsf6TyWxbtHinM2zyGXi+Ko0qnnQNLLyGUmFTHQ2 UceQ== X-Gm-Message-State: AFqh2krPltyBo0ZSmtmPrDXq/ve0wWO5yuYoc7980jHwu0CRWAg57oJR mscOgCFLT+u0Xhb6ajM+/dEmLdZe8Xitrw== X-Google-Smtp-Source: AMrXdXs7SCQj0wzyqzkSFxedhqj0UniP7iPuFeZsaG7t8JL9TtTJCkLv4L0H/xAJdi/B+dRMYcN/mg== X-Received: by 2002:a05:600c:1da3:b0:3d3:4dbc:75ef with SMTP id p35-20020a05600c1da300b003d34dbc75efmr28346951wms.17.1672650835101; Mon, 02 Jan 2023 01:13:55 -0800 (PST) Received: from tpt440p.steeds.sam ([2602:fbf6:10:8::2]) by smtp.gmail.com with ESMTPSA id n36-20020a05600c3ba400b003b49bd61b19sm44700735wms.15.2023.01.02.01.13.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Jan 2023 01:13:54 -0800 (PST) From: "Sicelo A. Mhlongo" To: linux-pm@vger.kernel.org Cc: pali@kernel.org, sre@kernel.org, brauner@kernel.org, linux-kernel@vger.kernel.org, "Sicelo A. Mhlongo" Subject: [PATCH 1/1] power: supply: bq27xxx: fix reporting critical level Date: Mon, 2 Jan 2023 11:13:26 +0200 Message-Id: <20230102091326.3959978-1-absicsz@gmail.com> X-Mailer: git-send-email 2.39.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The EDV1/SOC1 flag is set when the battery voltage drops below the threshold set in EEPROM. From observing the capacity_level reported by the driver, and reading the datasheet, EDV1 remains set even when EDVF/SOCF gets set. Thus, bq27xxx_battery_capacity_level() never reaches the CAPACITY_LEVEL_CRITICAL code path, since CAPACITY_LEVEL_LOW takes precedence. This commit fixes the issue by swapping the order in which the flags are tested. It was tested with bq27200 in the Nokia N900. Signed-off-by: Sicelo A. Mhlongo --- drivers/power/supply/bq27xxx_battery.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c index 8bf048fbd36a..5ff6f44fd47b 100644 --- a/drivers/power/supply/bq27xxx_battery.c +++ b/drivers/power/supply/bq27xxx_battery.c @@ -1917,10 +1917,10 @@ static int bq27xxx_battery_capacity_level(struct bq27xxx_device_info *di, if (di->opts & BQ27XXX_O_ZERO) { if (di->cache.flags & BQ27000_FLAG_FC) level = POWER_SUPPLY_CAPACITY_LEVEL_FULL; - else if (di->cache.flags & BQ27000_FLAG_EDV1) - level = POWER_SUPPLY_CAPACITY_LEVEL_LOW; else if (di->cache.flags & BQ27000_FLAG_EDVF) level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; + else if (di->cache.flags & BQ27000_FLAG_EDV1) + level = POWER_SUPPLY_CAPACITY_LEVEL_LOW; else level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; } else if (di->opts & BQ27Z561_O_BITS) { @@ -1933,10 +1933,10 @@ static int bq27xxx_battery_capacity_level(struct bq27xxx_device_info *di, } else { if (di->cache.flags & BQ27XXX_FLAG_FC) level = POWER_SUPPLY_CAPACITY_LEVEL_FULL; - else if (di->cache.flags & BQ27XXX_FLAG_SOC1) - level = POWER_SUPPLY_CAPACITY_LEVEL_LOW; else if (di->cache.flags & BQ27XXX_FLAG_SOCF) level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; + else if (di->cache.flags & BQ27XXX_FLAG_SOC1) + level = POWER_SUPPLY_CAPACITY_LEVEL_LOW; else level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; }