Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751934AbaKFQoS (ORCPT ); Thu, 6 Nov 2014 11:44:18 -0500 Received: from bh-25.webhostbox.net ([208.91.199.152]:56137 "EHLO bh-25.webhostbox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751851AbaKFQoF (ORCPT ); Thu, 6 Nov 2014 11:44:05 -0500 From: Guenter Roeck To: linux-kernel@vger.kernel.org Cc: linux-pm@vger.kernel.org, Guenter Roeck , Lee Jones , Samuel Ortiz Subject: [PATCH v5 10/48] mfd: axp20x: Register with kernel power-off handler Date: Thu, 6 Nov 2014 08:42:54 -0800 Message-Id: <1415292213-28652-11-git-send-email-linux@roeck-us.net> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1415292213-28652-1-git-send-email-linux@roeck-us.net> References: <1415292213-28652-1-git-send-email-linux@roeck-us.net> X-Authenticated_sender: guenter@roeck-us.net X-OutGoing-Spam-Status: No, score=-1.0 X-CTCH-PVer: 0000001 X-CTCH-Spam: Unknown X-CTCH-VOD: Unknown X-CTCH-Flags: 0 X-CTCH-RefID: str=0001.0A020209.545BA555.00A9,ss=1,re=0.001,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0 X-CTCH-Score: 0.001 X-CTCH-ScoreCust: 0.000 X-CTCH-Rules: C_4847, X-CTCH-SenderID: linux@roeck-us.net X-CTCH-SenderID-Flags: 0 X-CTCH-SenderID-TotalMessages: 51 X-CTCH-SenderID-TotalSpam: 0 X-CTCH-SenderID-TotalSuspected: 0 X-CTCH-SenderID-TotalConfirmed: 0 X-CTCH-SenderID-TotalBulk: 0 X-CTCH-SenderID-TotalVirus: 0 X-CTCH-SenderID-TotalRecipients: 0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - bh-25.webhostbox.net X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - roeck-us.net X-Get-Message-Sender-Via: bh-25.webhostbox.net: mailgid no entry from get_relayhosts_entry X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Register with kernel power-off handler instead of setting pm_power_off directly. Register with a low priority value of 64 to reflect that the original code only sets pm_power_off if it was not already set. Cc: Lee Jones Cc: Samuel Ortiz Acked-by: Lee Jones Signed-off-by: Guenter Roeck --- v5: - Rebase to v3.18-rc3 v4: - Do not use notifiers but internal functions and data structures to manage the list of power-off handlers. Drop unused parameters from callbacks, and make the power-off function type void v3: - Replace poweroff in all newly introduced variables and in text with power_off or power-off as appropriate - Replace POWEROFF_PRIORITY_xxx with POWER_OFF_PRIORITY_xxx v2: - Use define to specify powroff handler priority - Use devm_register_power_off_handler - Use dev_warn instead of dev_err drivers/mfd/axp20x.c | 24 +++++++++++------------- include/linux/mfd/axp20x.h | 1 + 2 files changed, 12 insertions(+), 13 deletions(-) diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c index 6231adb..e2430e6 100644 --- a/drivers/mfd/axp20x.c +++ b/drivers/mfd/axp20x.c @@ -150,11 +150,13 @@ static struct mfd_cell axp20x_cells[] = { }, }; -static struct axp20x_dev *axp20x_pm_power_off; -static void axp20x_power_off(void) +static void axp20x_power_off(struct power_off_handler_block *this) + { - regmap_write(axp20x_pm_power_off->regmap, AXP20X_OFF_CTRL, - AXP20X_OFF); + struct axp20x_dev *axp20x = container_of(this, struct axp20x_dev, + power_off_hb); + + regmap_write(axp20x->regmap, AXP20X_OFF_CTRL, AXP20X_OFF); } static int axp20x_i2c_probe(struct i2c_client *i2c, @@ -204,10 +206,11 @@ static int axp20x_i2c_probe(struct i2c_client *i2c, return ret; } - if (!pm_power_off) { - axp20x_pm_power_off = axp20x; - pm_power_off = axp20x_power_off; - } + axp20x->power_off_hb.handler = axp20x_power_off; + axp20x->power_off_hb.priority = POWER_OFF_PRIORITY_LOW; + ret = devm_register_power_off_handler(&i2c->dev, &axp20x->power_off_hb); + if (ret) + dev_warn(&i2c->dev, "failed to register power-off handler\n"); dev_info(&i2c->dev, "AXP20X driver loaded\n"); @@ -218,11 +221,6 @@ static int axp20x_i2c_remove(struct i2c_client *i2c) { struct axp20x_dev *axp20x = i2c_get_clientdata(i2c); - if (axp20x == axp20x_pm_power_off) { - axp20x_pm_power_off = NULL; - pm_power_off = NULL; - } - mfd_remove_devices(axp20x->dev); regmap_del_irq_chip(axp20x->i2c_client->irq, axp20x->regmap_irqc); diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h index d0e31a2..8f330af 100644 --- a/include/linux/mfd/axp20x.h +++ b/include/linux/mfd/axp20x.h @@ -175,6 +175,7 @@ struct axp20x_dev { struct regmap *regmap; struct regmap_irq_chip_data *regmap_irqc; long variant; + struct power_off_handler_block power_off_hb; }; #endif /* __LINUX_MFD_AXP20X_H */ -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/