From patchwork Thu May 20 09:18:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 444489 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 EBFFDC43462 for ; Thu, 20 May 2021 09:50:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D43CE61C28 for ; Thu, 20 May 2021 09:50:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234253AbhETJvy (ORCPT ); Thu, 20 May 2021 05:51:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:53274 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234523AbhETJtv (ORCPT ); Thu, 20 May 2021 05:49:51 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id B6995613AA; Thu, 20 May 2021 09:35:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621503312; bh=1FtuE6wXrf3KBrDZ3bGpFjPzzlYwJ06oNlq908LCyfU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=R6Y5NyOeY20ClEF8371eHLEVceuuN23jaS2ikQf3bTijoZwrwtoNFZp0rAxvW0VfU 93V4/TP4piTy2Wd2afW//BHqmNcH0kdhjHRhGndqrdokrae0yI6Iz6sGMrTMgIkLDo oHUfspJDP+b2MZWGpZ6cTN5wxRF9cx5T0I4GXe5s= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Krzysztof Kozlowski , Sasha Levin Subject: [PATCH 4.19 164/425] ARM: dts: exynos: correct MUIC interrupt trigger level on Midas family Date: Thu, 20 May 2021 11:18:53 +0200 Message-Id: <20210520092136.844793823@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210520092131.308959589@linuxfoundation.org> References: <20210520092131.308959589@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Krzysztof Kozlowski [ Upstream commit 15107e443ab8c6cb35eff10438993e4bc944d9ae ] The Maxim MUIC datasheets describe the interrupt line as active low with a requirement of acknowledge from the CPU. Without specifying the interrupt type in Devicetree, kernel might apply some fixed configuration, not necessarily working for this hardware. Additionally, the interrupt line is shared so using level sensitive interrupt is here especially important to avoid races. Fixes: 7eec1266751b ("ARM: dts: Add Maxim 77693 PMIC to exynos4412-trats2") Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20201210212534.216197-4-krzk@kernel.org Signed-off-by: Sasha Levin --- arch/arm/boot/dts/exynos4412-midas.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/exynos4412-midas.dtsi b/arch/arm/boot/dts/exynos4412-midas.dtsi index d4bb5f65b9f3..c6cc3d2a1121 100644 --- a/arch/arm/boot/dts/exynos4412-midas.dtsi +++ b/arch/arm/boot/dts/exynos4412-midas.dtsi @@ -139,7 +139,7 @@ max77693@66 { compatible = "maxim,max77693"; interrupt-parent = <&gpx1>; - interrupts = <5 IRQ_TYPE_EDGE_FALLING>; + interrupts = <5 IRQ_TYPE_LEVEL_LOW>; pinctrl-names = "default"; pinctrl-0 = <&max77693_irq>; reg = <0x66>;