From patchwork Fri Feb 27 08:19:55 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 444192 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id D04841400B6 for ; Fri, 27 Feb 2015 19:23:16 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755186AbbB0IXP (ORCPT ); Fri, 27 Feb 2015 03:23:15 -0500 Received: from mailout3.w1.samsung.com ([210.118.77.13]:44138 "EHLO mailout3.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754726AbbB0IUv (ORCPT ); Fri, 27 Feb 2015 03:20:51 -0500 Received: from eucpsbgm1.samsung.com (unknown [203.254.199.244]) by mailout3.w1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NKF00BBT8PGWU70@mailout3.w1.samsung.com>; Fri, 27 Feb 2015 08:24:53 +0000 (GMT) X-AuditID: cbfec7f4-b7f126d000001e9a-3d-54f0284fcc06 Received: from eusync1.samsung.com ( [203.254.199.211]) by eucpsbgm1.samsung.com (EUCPMTA) with SMTP id F9.BD.07834.F4820F45; Fri, 27 Feb 2015 08:18:23 +0000 (GMT) Received: from AMDC1943.digital.local ([106.116.151.171]) by eusync1.samsung.com (Oracle Communications Messaging Server 7u4-23.01(7.0.4.23.0) 64bit (built Aug 10 2011)) with ESMTPA id <0NKF007VV8HM7X70@eusync1.samsung.com>; Fri, 27 Feb 2015 08:20:48 +0000 (GMT) From: Krzysztof Kozlowski To: Sebastian Reichel , Dmitry Eremin-Solenikov , David Woodhouse , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, "Rafael J. Wysocki" , Len Brown , Jiri Kosina , David Herrmann , Cezary Jackiewicz , Darren Hart , Support Opensource , Milo Kim , Julian Andres Klode , Marc Dietrich , Greg Kroah-Hartman , linux-acpi@vger.kernel.org, linux-input@vger.kernel.org, platform-driver-x86@vger.kernel.org, patches@opensource.wolfsonmicro.com, ac100@lists.launchpad.net, linux-tegra@vger.kernel.org, devel@driverdev.osuosl.org, Linus Walleij , Samuel Ortiz , Lee Jones , linux-arm-kernel@lists.infradead.org, Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, Daniel Mack , Haojian Zhuang , Robert Jarzmik Cc: Thomas Gleixner , Pavel Machek , Kyungmin Park , Marek Szyprowski , Krzysztof Kozlowski Subject: [PATCH v5 14/20] power_supply: charger-manager: Decrement the power supply's device reference counter Date: Fri, 27 Feb 2015 09:19:55 +0100 Message-id: <1425025201-15926-15-git-send-email-k.kozlowski@samsung.com> X-Mailer: git-send-email 1.9.1 In-reply-to: <1425025201-15926-1-git-send-email-k.kozlowski@samsung.com> References: <1425025201-15926-1-git-send-email-k.kozlowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAAyWRa0iTYRiGe/cd9s0afc2lnyYWgyKManZ86CBGhG8/ogOOqECbumqgUzaV kkDxEDmztDWpYeaYtVpLc4PIPGSrWTYzm1ZkzpAtqDxsmmlYWS7/XffDdXP/eBhC1EpGMkpV tkKtkqdL6BDSNfu8d+3+1YFEaeOPKLj4KsCDuhdlJBT++UbCZZ+fgJauGT6YesNAa5RC5R0d AUWmBhp66rdCVWM43Bq/QUNztYmE4S+x8KpwhA+ffjgRNA2N0nDlt5kH5rZLCGzedxR8mJii oPdRNQ3fy58hKJ000HDvmYcPpa+NCMwz9SS422vnGqN/afC8dNJwt+ULAV0uNwWGkVBwlVHg as6G1pI3BNhtegJ+3vdS8avw7Yn1eLDtKYkv1X+ncJPBw8eB8ST8uULHx/bbMdj3zUxhm6WU xgPvWmg81t3NxzWdB/Hj69Y5oS4fOy8MkPhr5S/6QMTRkB1pinRlrkK9Pu54yKnhu31klnvz aX1xKa8AFa7RIobh2E2cPsBqkWAOw7iewQZai0IYEXsTcWUPb5Hz4SKPKza85QUtmt3I2c11 /y0x2yHgntwr5wUDwboR5/V18oNWKJvF6dtqiCCT7ErOWWwlgyxkMdc3PkvM70VznR06KsiC ufvYn2v/uyI2gWswTqMKJKxFCyxoqSInNUuTcjIjdp1GnqHJUZ1cl5qZYUPzL598iEwd2xyI ZZBkkTB+SSBRRMlzNWcyHIhjCIlYiIb8iSJhmvxMnkKdmazOSVdoHIjHCCIL0FVq3wbBg8Ph kzmq917LMVW0J2Vxb/SeiI0qS1Sede8u2eh5q7SLaBJPveieLRlctjA5q2Zs2r5C+uBEQrbf v/uIqD9U6si3xDQKtu9RYpssKlLWzLSb9EXL48Qr1EmZygSd91yVtiTv8PmP4nJZkty9xfh6 p6d/+iz2FXgPSUjNKXlsDKHWyP8Bt3vt/tACAAA= Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org Use power_supply_put() to decrement the power supply's device reference counter. Signed-off-by: Krzysztof Kozlowski Acked-by: Pavel Machek Reviewed-by: Bartlomiej Zolnierkiewicz Reviewed-by: Sebastian Reichel --- drivers/power/charger-manager.c | 70 +++++++++++++++++++++++++++-------------- 1 file changed, 47 insertions(+), 23 deletions(-) diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c index 5c47409c6889..e23b7ba2cbd2 100644 --- a/drivers/power/charger-manager.c +++ b/drivers/power/charger-manager.c @@ -107,6 +107,7 @@ static bool is_batt_present(struct charger_manager *cm) &val); if (ret == 0 && val.intval) present = true; + power_supply_put(psy); break; case CM_CHARGER_STAT: for (i = 0; cm->desc->psy_charger_stat[i]; i++) { @@ -120,6 +121,7 @@ static bool is_batt_present(struct charger_manager *cm) ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_PRESENT, &val); + power_supply_put(psy); if (ret == 0 && val.intval) { present = true; break; @@ -157,6 +159,7 @@ static bool is_ext_pwr_online(struct charger_manager *cm) ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_ONLINE, &val); + power_supply_put(psy); if (ret == 0 && val.intval) { online = true; break; @@ -186,6 +189,7 @@ static int get_batt_uV(struct charger_manager *cm, int *uV) ret = power_supply_get_property(fuel_gauge, POWER_SUPPLY_PROP_VOLTAGE_NOW, &val); + power_supply_put(fuel_gauge); if (ret) return ret; @@ -229,10 +233,13 @@ static bool is_charging(struct charger_manager *cm) if (ret) { dev_warn(cm->dev, "Cannot read ONLINE value from %s\n", cm->desc->psy_charger_stat[i]); + power_supply_put(psy); continue; } - if (val.intval == 0) + if (val.intval == 0) { + power_supply_put(psy); continue; + } /* * 3. The charger should not be FULL, DISCHARGING, @@ -240,6 +247,7 @@ static bool is_charging(struct charger_manager *cm) */ ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_STATUS, &val); + power_supply_put(psy); if (ret) { dev_warn(cm->dev, "Cannot read STATUS value from %s\n", cm->desc->psy_charger_stat[i]); @@ -267,6 +275,7 @@ static bool is_full_charged(struct charger_manager *cm) struct charger_desc *desc = cm->desc; union power_supply_propval val; struct power_supply *fuel_gauge; + bool is_full = false; int ret = 0; int uV; @@ -284,15 +293,19 @@ static bool is_full_charged(struct charger_manager *cm) /* Not full if capacity of fuel gauge isn't full */ ret = power_supply_get_property(fuel_gauge, POWER_SUPPLY_PROP_CHARGE_FULL, &val); - if (!ret && val.intval > desc->fullbatt_full_capacity) - return true; + if (!ret && val.intval > desc->fullbatt_full_capacity) { + is_full = true; + goto out; + } } /* Full, if it's over the fullbatt voltage */ if (desc->fullbatt_uV > 0) { ret = get_batt_uV(cm, &uV); - if (!ret && uV >= desc->fullbatt_uV) - return true; + if (!ret && uV >= desc->fullbatt_uV) { + is_full = true; + goto out; + } } /* Full, if the capacity is more than fullbatt_soc */ @@ -301,11 +314,15 @@ static bool is_full_charged(struct charger_manager *cm) ret = power_supply_get_property(fuel_gauge, POWER_SUPPLY_PROP_CAPACITY, &val); - if (!ret && val.intval >= desc->fullbatt_soc) - return true; + if (!ret && val.intval >= desc->fullbatt_soc) { + is_full = true; + goto out; + } } - return false; +out: + power_supply_put(fuel_gauge); + return is_full; } /** @@ -578,14 +595,18 @@ static int cm_get_battery_temperature_by_psy(struct charger_manager *cm, int *temp) { struct power_supply *fuel_gauge; + int ret; fuel_gauge = power_supply_get_by_name(cm->desc->psy_fuel_gauge); if (!fuel_gauge) return -ENODEV; - return power_supply_get_property(fuel_gauge, + ret = power_supply_get_property(fuel_gauge, POWER_SUPPLY_PROP_TEMP, (union power_supply_propval *)temp); + power_supply_put(fuel_gauge); + + return ret; } static int cm_get_battery_temperature(struct charger_manager *cm, @@ -866,7 +887,7 @@ static int charger_get_property(struct power_supply *psy, { struct charger_manager *cm = power_supply_get_drvdata(psy); struct charger_desc *desc = cm->desc; - struct power_supply *fuel_gauge; + struct power_supply *fuel_gauge = NULL; int ret = 0; int uV; @@ -909,18 +930,18 @@ static int charger_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_TEMP_AMBIENT: return cm_get_battery_temperature(cm, &val->intval); case POWER_SUPPLY_PROP_CAPACITY: - fuel_gauge = power_supply_get_by_name(cm->desc->psy_fuel_gauge); - if (!fuel_gauge) { - ret = -ENODEV; - break; - } - if (!is_batt_present(cm)) { /* There is no battery. Assume 100% */ val->intval = 100; break; } + fuel_gauge = power_supply_get_by_name(cm->desc->psy_fuel_gauge); + if (!fuel_gauge) { + ret = -ENODEV; + break; + } + ret = power_supply_get_property(fuel_gauge, POWER_SUPPLY_PROP_CAPACITY, val); if (ret) @@ -995,6 +1016,8 @@ static int charger_get_property(struct power_supply *psy, default: return -EINVAL; } + if (fuel_gauge) + power_supply_put(fuel_gauge); return ret; } @@ -1676,13 +1699,7 @@ static int charger_manager_probe(struct platform_device *pdev) desc->psy_charger_stat[i]); return -ENODEV; } - } - - fuel_gauge = power_supply_get_by_name(desc->psy_fuel_gauge); - if (!fuel_gauge) { - dev_err(&pdev->dev, "Cannot find power supply \"%s\"\n", - desc->psy_fuel_gauge); - return -ENODEV; + power_supply_put(psy); } if (desc->polling_interval_ms == 0 || @@ -1722,6 +1739,12 @@ static int charger_manager_probe(struct platform_device *pdev) cm->charger_psy_desc.num_properties = psy_default.num_properties; /* Find which optional psy-properties are available */ + fuel_gauge = power_supply_get_by_name(desc->psy_fuel_gauge); + if (!fuel_gauge) { + dev_err(&pdev->dev, "Cannot find power supply \"%s\"\n", + desc->psy_fuel_gauge); + return -ENODEV; + } if (!power_supply_get_property(fuel_gauge, POWER_SUPPLY_PROP_CHARGE_NOW, &val)) { cm->charger_psy_desc.properties[cm->charger_psy_desc.num_properties] = @@ -1741,6 +1764,7 @@ static int charger_manager_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Failed to initialize thermal data\n"); cm->desc->measure_battery_temp = false; } + power_supply_put(fuel_gauge); INIT_DELAYED_WORK(&cm->fullbatt_vchk_work, fullbatt_vchk);