Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752321AbdLJSFi (ORCPT ); Sun, 10 Dec 2017 13:05:38 -0500 Received: from mail-wm0-f68.google.com ([74.125.82.68]:38665 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752165AbdLJSFd (ORCPT ); Sun, 10 Dec 2017 13:05:33 -0500 X-Google-Smtp-Source: AGs4zMZLaerGEB62CfNiwuDySCJVjAcgF0LAV8LKSxb7tFHML4tHelxbSHeYjij43TgUAGGDpRhpDg== Date: Sun, 10 Dec 2017 19:05:29 +0100 From: Ognjen Galic To: "Rafael J. Wysocki" , Len Brown , Robert Moore , Lv Zheng , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, devel@acpica.org Cc: Darren Hart , Andy Shevchenko , Henrique de Moraes Holschuh , platform-driver-x86@vger.kernel.org, ibm-acpi-devel@lists.sourceforge.net Subject: [PATCH 2/3 v5] battery: Add the ThinkPad "Not Charging" quirk Message-ID: <20171210180529.GA2016@thinkpad> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2384 Lines: 72 The EC/ACPI firmware on Lenovo ThinkPads used to report a status of "Unknown" when the battery is between the charge start and charge stop thresholds. On Windows, it reports "Not Charging" so the quirk has been added to also report correctly. Now the "status" attribute returns "Not Charging" when the battery on ThinkPads is not physicaly charging. Tested-by: Kevin Locke Tested-by: Christoph B?hmwalder Signed-off-by: Ognjen Galic --- drivers/acpi/battery.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 2951d07..81e9b4e 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -71,6 +71,7 @@ static async_cookie_t async_cookie; static bool battery_driver_registered; static int battery_bix_broken_package; static int battery_notification_delay_ms; +static int battery_quirk_thinkpad_notcharging; static unsigned int cache_time = 1000; module_param(cache_time, uint, 0644); MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); @@ -222,6 +223,13 @@ static int acpi_battery_get_property(struct power_supply *psy, val->intval = POWER_SUPPLY_STATUS_CHARGING; else if (acpi_battery_is_charged(battery)) val->intval = POWER_SUPPLY_STATUS_FULL; + /* + * On the Lenovo ThinkPad ACPI implementation, when + * neither bits 0 or 1 are set, that state is + * considered as "Not Charging". + */ + else if (battery_quirk_thinkpad_notcharging) + val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING; else val->intval = POWER_SUPPLY_STATUS_UNKNOWN; break; @@ -1301,6 +1309,13 @@ battery_notification_delay_quirk(const struct dmi_system_id *d) return 0; } +static int __init +battery_quirk_not_charging(const struct dmi_system_id *d) +{ + battery_quirk_thinkpad_notcharging = 1; + return 0; +} + static const struct dmi_system_id bat_dmi_table[] __initconst = { { .callback = battery_bix_broken_package_quirk, @@ -1318,6 +1333,14 @@ static const struct dmi_system_id bat_dmi_table[] __initconst = { DMI_MATCH(DMI_PRODUCT_NAME, "Aspire V5-573G"), }, }, + { + .callback = battery_quirk_not_charging, + .ident = "Lenovo ThinkPad", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad"), + }, + }, {}, }; -- 2.7.4