From mboxrd@z Thu Jan 1 00:00:00 1970 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=-6.8 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=ham 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 81812C18E5A for ; Tue, 10 Mar 2020 12:54:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 589ED2253D for ; Tue, 10 Mar 2020 12:54:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583844844; bh=u1tL22Oa8Lt3kR4tVCpS9TqfnburU/QugzCbNdKVgIw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=1SL5gAH7hxobZvQ5aMpwGQc/idg2QZVleRH3pLhKeUZpxNVikeC+JejLMnwY3MM+L i0u7dn+12TYMAuS9rMchw9+LD/uHiV17Yi5pvuGImdlL4VxErdmeTwRXWSxDI25PBg dmpuflU8Gl0TWkOaq1Wc1EqaSYm2VZFamGopFD+E= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727518AbgCJMyC (ORCPT ); Tue, 10 Mar 2020 08:54:02 -0400 Received: from mail.kernel.org ([198.145.29.99]:60336 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729289AbgCJMyB (ORCPT ); Tue, 10 Mar 2020 08:54:01 -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 B026320674; Tue, 10 Mar 2020 12:54:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583844841; bh=u1tL22Oa8Lt3kR4tVCpS9TqfnburU/QugzCbNdKVgIw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=m6+jCOu0bQy4qdASIrBXlRZvETF9jDDssCLRdtIudgPU5D+88hAo7xuYDE5MUSwDB Ak3t3h9dgRPCRo+izneglXZBUZltrDPvgYVbuwGl2h/fR7WUYEL/xnPPBcMP/03vKP 4Fa/UeGPI0z5sjLzk0rlOYzmT5lBrQ4V2lAV/RzU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Marcel Partap , Merlijn Wajer , Michael Scott , NeKit , Pavel Machek , Sebastian Reichel , Tony Lindgren , Kishon Vijay Abraham I Subject: [PATCH 5.4 137/168] phy: mapphone-mdm6600: Fix timeouts by adding wake-up handling Date: Tue, 10 Mar 2020 13:39:43 +0100 Message-Id: <20200310123649.365414852@linuxfoundation.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200310123635.322799692@linuxfoundation.org> References: <20200310123635.322799692@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Tony Lindgren commit be4e3c737eebd75815633f4b8fd766defaf0f1fc upstream. We have an interrupt handler for the wake-up GPIO pin, but we're missing the code to wake-up the system. This can cause timeouts receiving data for the UART that shares the wake-up GPIO pin with the USB PHY. All we need to do is just wake the system and kick the autosuspend timeout to fix the issue. Fixes: 5d1ebbda0318 ("phy: mapphone-mdm6600: Add USB PHY driver for MDM6600 on Droid 4") Cc: Marcel Partap Cc: Merlijn Wajer Cc: Michael Scott Cc: NeKit Cc: Pavel Machek Cc: Sebastian Reichel Signed-off-by: Tony Lindgren Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Greg Kroah-Hartman --- drivers/phy/motorola/phy-mapphone-mdm6600.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) --- a/drivers/phy/motorola/phy-mapphone-mdm6600.c +++ b/drivers/phy/motorola/phy-mapphone-mdm6600.c @@ -243,10 +243,24 @@ static irqreturn_t phy_mdm6600_wakeirq_t { struct phy_mdm6600 *ddata = data; struct gpio_desc *mode_gpio1; + int error, wakeup; mode_gpio1 = ddata->mode_gpios->desc[PHY_MDM6600_MODE1]; - dev_dbg(ddata->dev, "OOB wake on mode_gpio1: %i\n", - gpiod_get_value(mode_gpio1)); + wakeup = gpiod_get_value(mode_gpio1); + if (!wakeup) + return IRQ_NONE; + + dev_dbg(ddata->dev, "OOB wake on mode_gpio1: %i\n", wakeup); + error = pm_runtime_get_sync(ddata->dev); + if (error < 0) { + pm_runtime_put_noidle(ddata->dev); + + return IRQ_NONE; + } + + /* Just wake-up and kick the autosuspend timer */ + pm_runtime_mark_last_busy(ddata->dev); + pm_runtime_put_autosuspend(ddata->dev); return IRQ_HANDLED; }