From patchwork Tue Mar 31 04:07:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hsin-Hsiung Wang X-Patchwork-Id: 1264507 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-rtc-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=mediatek.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=mediatek.com header.i=@mediatek.com header.a=rsa-sha256 header.s=dk header.b=q9JhTg7i; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 48rwmB1snJz9sRN for ; Tue, 31 Mar 2020 15:08:10 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726194AbgCaEHp (ORCPT ); Tue, 31 Mar 2020 00:07:45 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:37882 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725535AbgCaEHp (ORCPT ); Tue, 31 Mar 2020 00:07:45 -0400 X-UUID: c03ae8fac2664b669459ee8407f0f7a7-20200331 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=vbBy5C/DaSBU2FKJVnVr9W82i4fyWHiz2DGgjDIySMQ=; b=q9JhTg7ior4RP4PEnRTti3LPzb+oPSfd2RnzJkYW24KF5cry6wuTvyMZuvRNkU1Y0cScE3fYwU/OR+ACe1bzQlEb+KNSglpc6QNyBKH2l+kFuGKU0Pv+OVCJc3HVBQt6zocadpvZyPwJ3+/AfKjAPbQSlNEzwGp31+B4+RW5wR8=; X-UUID: c03ae8fac2664b669459ee8407f0f7a7-20200331 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 1461013669; Tue, 31 Mar 2020 12:07:41 +0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 31 Mar 2020 12:07:34 +0800 Received: from mtksdaap41.mediatek.inc (172.21.77.4) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 31 Mar 2020 12:07:39 +0800 From: Hsin-Hsiung Wang To: Lee Jones , Rob Herring , Matthias Brugger , Alexandre Belloni CC: Nicolas Boichat , Mark Rutland , Sean Wang , Sebastian Reichel , Eddie Huang , Alessandro Zummo , Kate Stewart , Richard Fontana , Frank Wunderlich , Josef Friedl , Thomas Gleixner , Hsin-Hsiung Wang , Ran Bi , , , , , , , Subject: [PATCH v11 1/5] mfd: mt6397: modify suspend/resume behavior Date: Tue, 31 Mar 2020 12:07:33 +0800 Message-ID: <1585627657-3265-2-git-send-email-hsin-hsiung.wang@mediatek.com> X-Mailer: git-send-email 2.6.4 In-Reply-To: <1585627657-3265-1-git-send-email-hsin-hsiung.wang@mediatek.com> References: <1585627657-3265-1-git-send-email-hsin-hsiung.wang@mediatek.com> MIME-Version: 1.0 X-MTK: N Sender: linux-rtc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rtc@vger.kernel.org Some pmics don't need backup interrupt settings, so we change to use pm notifier for the pmics which are necessary to store settings. Signed-off-by: Hsin-Hsiung Wang Acked-for-MFD-by: Lee Jones --- drivers/mfd/mt6397-core.c | 30 ------------------------------ drivers/mfd/mt6397-irq.c | 33 +++++++++++++++++++++++++++++++++ include/linux/mfd/mt6397/core.h | 2 ++ 3 files changed, 35 insertions(+), 30 deletions(-) diff --git a/drivers/mfd/mt6397-core.c b/drivers/mfd/mt6397-core.c index 0437c85..d2e70d8 100644 --- a/drivers/mfd/mt6397-core.c +++ b/drivers/mfd/mt6397-core.c @@ -100,35 +100,6 @@ static const struct mfd_cell mt6397_devs[] = { } }; -#ifdef CONFIG_PM_SLEEP -static int mt6397_irq_suspend(struct device *dev) -{ - struct mt6397_chip *chip = dev_get_drvdata(dev); - - regmap_write(chip->regmap, chip->int_con[0], chip->wake_mask[0]); - regmap_write(chip->regmap, chip->int_con[1], chip->wake_mask[1]); - - enable_irq_wake(chip->irq); - - return 0; -} - -static int mt6397_irq_resume(struct device *dev) -{ - struct mt6397_chip *chip = dev_get_drvdata(dev); - - regmap_write(chip->regmap, chip->int_con[0], chip->irq_masks_cur[0]); - regmap_write(chip->regmap, chip->int_con[1], chip->irq_masks_cur[1]); - - disable_irq_wake(chip->irq); - - return 0; -} -#endif - -static SIMPLE_DEV_PM_OPS(mt6397_pm_ops, mt6397_irq_suspend, - mt6397_irq_resume); - struct chip_data { u32 cid_addr; u32 cid_shift; @@ -238,7 +209,6 @@ static struct platform_driver mt6397_driver = { .driver = { .name = "mt6397", .of_match_table = of_match_ptr(mt6397_of_match), - .pm = &mt6397_pm_ops, }, .id_table = mt6397_id, }; diff --git a/drivers/mfd/mt6397-irq.c b/drivers/mfd/mt6397-irq.c index b2d3ce1..669e93d 100644 --- a/drivers/mfd/mt6397-irq.c +++ b/drivers/mfd/mt6397-irq.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include #include @@ -128,6 +129,36 @@ static const struct irq_domain_ops mt6397_irq_domain_ops = { .map = mt6397_irq_domain_map, }; +static int mt6397_irq_pm_notifier(struct notifier_block *notifier, + unsigned long pm_event, void *unused) +{ + struct mt6397_chip *chip = + container_of(notifier, struct mt6397_chip, pm_nb); + + switch (pm_event) { + case PM_SUSPEND_PREPARE: + regmap_write(chip->regmap, + chip->int_con[0], chip->wake_mask[0]); + regmap_write(chip->regmap, + chip->int_con[1], chip->wake_mask[1]); + enable_irq_wake(chip->irq); + break; + + case PM_POST_SUSPEND: + regmap_write(chip->regmap, + chip->int_con[0], chip->irq_masks_cur[0]); + regmap_write(chip->regmap, + chip->int_con[1], chip->irq_masks_cur[1]); + disable_irq_wake(chip->irq); + break; + + default: + break; + } + + return NOTIFY_DONE; +} + int mt6397_irq_init(struct mt6397_chip *chip) { int ret; @@ -159,6 +190,7 @@ int mt6397_irq_init(struct mt6397_chip *chip) regmap_write(chip->regmap, chip->int_con[0], 0x0); regmap_write(chip->regmap, chip->int_con[1], 0x0); + chip->pm_nb.notifier_call = mt6397_irq_pm_notifier; chip->irq_domain = irq_domain_add_linear(chip->dev->of_node, MT6397_IRQ_NR, &mt6397_irq_domain_ops, @@ -177,5 +209,6 @@ int mt6397_irq_init(struct mt6397_chip *chip) return ret; } + register_pm_notifier(&chip->pm_nb); return 0; } diff --git a/include/linux/mfd/mt6397/core.h b/include/linux/mfd/mt6397/core.h index fc88d31..b81d333 100644 --- a/include/linux/mfd/mt6397/core.h +++ b/include/linux/mfd/mt6397/core.h @@ -8,6 +8,7 @@ #define __MFD_MT6397_CORE_H__ #include +#include enum chip_id { MT6323_CHIP_ID = 0x23, @@ -54,6 +55,7 @@ enum mt6397_irq_numbers { struct mt6397_chip { struct device *dev; struct regmap *regmap; + struct notifier_block pm_nb; int irq; struct irq_domain *irq_domain; struct mutex irqlock;