From patchwork Wed May 12 14:43:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "gregkh@linuxfoundation.org" X-Patchwork-Id: 438013 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=-19.4 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 1DF17C43617 for ; Wed, 12 May 2021 16:42:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D43F2611AC for ; Wed, 12 May 2021 16:42:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239356AbhELQjD (ORCPT ); Wed, 12 May 2021 12:39:03 -0400 Received: from mail.kernel.org ([198.145.29.99]:50044 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240122AbhELQa3 (ORCPT ); Wed, 12 May 2021 12:30:29 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3F5AC6196C; Wed, 12 May 2021 15:57:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620835045; bh=1K6sckRj1Nh0mmfgqx9bldPd4ucfU4Vbj8aVmmDPsO8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PrJrzebcnzNmb6oimPnnpObHA2HJYNHu6uwhqHgOYZOwb26stJxK82p9w86vtrNVx Ff+m+a2lZyZD2Wc7WkuRM732hPr6WoX2NH5793iD55grJE+9W1kMksja2AbaonKVmh U5aIfQ4Fnj6nefbZ3hkXmlGlosJd0fx2rU/NrsBg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Krzysztof Kozlowski , Sasha Levin Subject: [PATCH 5.12 151/677] ARM: dts: exynos: correct PMIC interrupt trigger level on P4 Note family Date: Wed, 12 May 2021 16:43:17 +0200 Message-Id: <20210512144842.258550528@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144837.204217980@linuxfoundation.org> References: <20210512144837.204217980@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 fbe9c9bb2e929865500a0985735f81c0142accad ] 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: f48b5050c301 ("ARM: dts: exynos: add Samsung's Exynos4412-based P4 Note boards") Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20201210212534.216197-7-krzk@kernel.org Signed-off-by: Sasha Levin --- arch/arm/boot/dts/exynos4412-p4note.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/exynos4412-p4note.dtsi b/arch/arm/boot/dts/exynos4412-p4note.dtsi index 5fe371543cbb..9e750890edb8 100644 --- a/arch/arm/boot/dts/exynos4412-p4note.dtsi +++ b/arch/arm/boot/dts/exynos4412-p4note.dtsi @@ -322,7 +322,7 @@ max77686: pmic@9 { compatible = "maxim,max77686"; interrupt-parent = <&gpx0>; - interrupts = <7 IRQ_TYPE_NONE>; + interrupts = <7 IRQ_TYPE_LEVEL_LOW>; pinctrl-0 = <&max77686_irq>; pinctrl-names = "default"; reg = <0x09>;