From patchwork Tue Apr 7 10:21:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 228137 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=-6.9 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, 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 5AFF5C2BB1D for ; Tue, 7 Apr 2020 10:29:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3127D20644 for ; Tue, 7 Apr 2020 10:29:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586255386; bh=cNBrUeVKUguLRG5XoS6GQF8frN3ZPEoSCOCtAQ9ya18=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=xNW2pJT+gTk7htS3UvHzWvLOZvUsTF4WTUmVNG5R/fvEgUKnoc6E0TWepemOeOgCP 7lVMF12knpZGBC/Zs995amEmuJNkFYZAYSaND3/HuH9SB44F59IzOOMtmaqjgU1/uO XrS9wirmtZQMjnjpkJBqBaceXeOGm5JlocU59kjs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728388AbgDGKXL (ORCPT ); Tue, 7 Apr 2020 06:23:11 -0400 Received: from mail.kernel.org ([198.145.29.99]:32864 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728383AbgDGKXK (ORCPT ); Tue, 7 Apr 2020 06:23:10 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CEDB620771; Tue, 7 Apr 2020 10:23:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586254989; bh=cNBrUeVKUguLRG5XoS6GQF8frN3ZPEoSCOCtAQ9ya18=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JWHItFMqYUUZKjULzxiET01XNODbmWuG6W/tETU6ob82V68Uj0Dnltz8+qRtNOrfC 4M1yfM0je66csbBWfMgYMZHAX0jQzBSaEYTjpDL9QECWh23FfbQ9gEuBSKMltZgWKm dKin5PX/9snoQ3JOZUys8cqIdngU4MoKx2tENKF0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hans de Goede , Chanwoo Choi Subject: [PATCH 5.4 22/36] extcon: axp288: Add wakeup support Date: Tue, 7 Apr 2020 12:21:55 +0200 Message-Id: <20200407101457.174373170@linuxfoundation.org> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200407101454.281052964@linuxfoundation.org> References: <20200407101454.281052964@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Hans de Goede commit 9c94553099efb2ba873cbdddfd416a8a09d0e5f1 upstream. On devices with an AXP288, we need to wakeup from suspend when a charger is plugged in, so that we can do charger-type detection and so that the axp288-charger driver, which listens for our extcon events, can configure the input-current-limit accordingly. Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede Signed-off-by: Chanwoo Choi Signed-off-by: Greg Kroah-Hartman --- drivers/extcon/extcon-axp288.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) --- a/drivers/extcon/extcon-axp288.c +++ b/drivers/extcon/extcon-axp288.c @@ -423,9 +423,40 @@ static int axp288_extcon_probe(struct pl /* Start charger cable type detection */ axp288_extcon_enable(info); + device_init_wakeup(dev, true); + platform_set_drvdata(pdev, info); + + return 0; +} + +static int __maybe_unused axp288_extcon_suspend(struct device *dev) +{ + struct axp288_extcon_info *info = dev_get_drvdata(dev); + + if (device_may_wakeup(dev)) + enable_irq_wake(info->irq[VBUS_RISING_IRQ]); + return 0; } +static int __maybe_unused axp288_extcon_resume(struct device *dev) +{ + struct axp288_extcon_info *info = dev_get_drvdata(dev); + + /* + * Wakeup when a charger is connected to do charger-type + * connection and generate an extcon event which makes the + * axp288 charger driver set the input current limit. + */ + if (device_may_wakeup(dev)) + disable_irq_wake(info->irq[VBUS_RISING_IRQ]); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(axp288_extcon_pm_ops, axp288_extcon_suspend, + axp288_extcon_resume); + static const struct platform_device_id axp288_extcon_table[] = { { .name = "axp288_extcon" }, {}, @@ -437,6 +468,7 @@ static struct platform_driver axp288_ext .id_table = axp288_extcon_table, .driver = { .name = "axp288_extcon", + .pm = &axp288_extcon_pm_ops, }, };