From patchwork Thu May 20 09:20:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 444286 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 85924C43461 for ; Thu, 20 May 2021 10:26:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 66ED9613C8 for ; Thu, 20 May 2021 10:26:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235703AbhETK2D (ORCPT ); Thu, 20 May 2021 06:28:03 -0400 Received: from mail.kernel.org ([198.145.29.99]:55738 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235940AbhETK0I (ORCPT ); Thu, 20 May 2021 06:26:08 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id F002061C1E; Thu, 20 May 2021 09:50:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621504204; bh=khwOMN62vM5kTfsRiMsiSVlp0hEirC7CiufNbdyC++o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=en4RZTLAjCurwBpb5ujgZmpyTIAOi8f/0T7NkWfIKrVHT69pnWlBfKhnGfNZPtUcl 78AKqirSJ1jlhGIsVlT9xjTQ3AClg1I1UMBNF18Pynuwu2n/lx2C/YzW9lB6QhvCcL T/35XIhtqbMGjfbFsdR7uDBdUwsNdSaDNUkDu60s= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Krzysztof Kozlowski , Sasha Levin Subject: [PATCH 4.14 140/323] ARM: dts: exynos: correct PMIC interrupt trigger level on SMDK5250 Date: Thu, 20 May 2021 11:20:32 +0200 Message-Id: <20210520092124.903410714@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210520092120.115153432@linuxfoundation.org> References: <20210520092120.115153432@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 f6368c60561370e4a92fac22982a3bd656172170 ] The Maxim PMIC 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: 47580e8d94c2 ("ARM: dts: Specify MAX77686 pmic interrupt for exynos5250-smdk5250") Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20201210212534.216197-8-krzk@kernel.org Signed-off-by: Sasha Levin --- arch/arm/boot/dts/exynos5250-smdk5250.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts index 062cba4c2c31..5065e6bf3778 100644 --- a/arch/arm/boot/dts/exynos5250-smdk5250.dts +++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts @@ -133,7 +133,7 @@ compatible = "maxim,max77686"; reg = <0x09>; interrupt-parent = <&gpx3>; - interrupts = <2 IRQ_TYPE_NONE>; + interrupts = <2 IRQ_TYPE_LEVEL_LOW>; pinctrl-names = "default"; pinctrl-0 = <&max77686_irq>; wakeup-source;