From patchwork Wed May 13 18:55:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Reichel X-Patchwork-Id: 212033 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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 451EAC433E1 for ; Wed, 13 May 2020 18:57:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 03A992054F for ; Wed, 13 May 2020 18:57:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390374AbgEMS4e (ORCPT ); Wed, 13 May 2020 14:56:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49936 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S2390370AbgEMS4d (ORCPT ); Wed, 13 May 2020 14:56:33 -0400 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B186FC061A0C; Wed, 13 May 2020 11:56:33 -0700 (PDT) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: sre) with ESMTPSA id E65ED2A27A9 Received: by jupiter.universe (Postfix, from userid 1000) id 6C7E8480101; Wed, 13 May 2020 20:56:29 +0200 (CEST) From: Sebastian Reichel To: Sebastian Reichel , Rob Herring , Greg Kroah-Hartman , "Rafael J . Wysocki" Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@collabora.com, Sebastian Reichel Subject: [PATCHv1 03/19] power: supply: core: add manufacture date properties Date: Wed, 13 May 2020 20:55:59 +0200 Message-Id: <20200513185615.508236-4-sebastian.reichel@collabora.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200513185615.508236-1-sebastian.reichel@collabora.com> References: <20200513185615.508236-1-sebastian.reichel@collabora.com> MIME-Version: 1.0 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Some smart batteries store their manufacture date, which is useful to identify the battery and/or to know about the cell quality. Signed-off-by: Sebastian Reichel --- Documentation/ABI/testing/sysfs-class-power | 28 +++++++++++++++++++++ drivers/power/supply/power_supply_sysfs.c | 3 +++ include/linux/power_supply.h | 3 +++ 3 files changed, 34 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power index 2f896555ae23..e6d7348766b2 100644 --- a/Documentation/ABI/testing/sysfs-class-power +++ b/Documentation/ABI/testing/sysfs-class-power @@ -680,3 +680,31 @@ Description: Valid values: - 1: enabled - 0: disabled + +What: /sys/class/power_supply//manufacture_year +Date: January 2020 +Contact: linux-pm@vger.kernel.org +Description: + Reports the year (following Gregorian calendar) when the device has been + manufactured. + + Access: Read + Valid values: Reported as integer + +What: /sys/class/power_supply//manufacture_month +Date: January 2020 +Contact: linux-pm@vger.kernel.org +Description: + Reports the month when the device has been manufactured. + + Access: Read + Valid values: 1-12 + +What: /sys/class/power_supply//manufacture_day +Date: January 2020 +Contact: linux-pm@vger.kernel.org +Description: + Reports the day of month when the device has been manufactured. + + Access: Read + Valid values: 1-31 diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c index e664774a2d1e..78d5382e69f1 100644 --- a/drivers/power/supply/power_supply_sysfs.c +++ b/drivers/power/supply/power_supply_sysfs.c @@ -198,6 +198,9 @@ static struct power_supply_attr power_supply_attrs[] = { POWER_SUPPLY_ATTR(PRECHARGE_CURRENT), POWER_SUPPLY_ATTR(CHARGE_TERM_CURRENT), POWER_SUPPLY_ATTR(CALIBRATE), + POWER_SUPPLY_ATTR(MANUFACTURE_YEAR), + POWER_SUPPLY_ATTR(MANUFACTURE_MONTH), + POWER_SUPPLY_ATTR(MANUFACTURE_DAY), /* Properties of type `const char *' */ POWER_SUPPLY_ATTR(MODEL_NAME), POWER_SUPPLY_ATTR(MANUFACTURER), diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 453a85f25635..63ffe2a0a87b 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -159,6 +159,9 @@ enum power_supply_property { POWER_SUPPLY_PROP_PRECHARGE_CURRENT, POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT, POWER_SUPPLY_PROP_CALIBRATE, + POWER_SUPPLY_PROP_MANUFACTURE_YEAR, + POWER_SUPPLY_PROP_MANUFACTURE_MONTH, + POWER_SUPPLY_PROP_MANUFACTURE_DAY, /* Properties of type `const char *' */ POWER_SUPPLY_PROP_MODEL_NAME, POWER_SUPPLY_PROP_MANUFACTURER,