From patchwork Wed May 12 14:43:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 436798 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 C69B0C433ED for ; Wed, 12 May 2021 16:01:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8E6A261CD2 for ; Wed, 12 May 2021 16:01:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236652AbhELQCM (ORCPT ); Wed, 12 May 2021 12:02:12 -0400 Received: from mail.kernel.org ([198.145.29.99]:37076 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238081AbhELP5S (ORCPT ); Wed, 12 May 2021 11:57:18 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6527A61438; Wed, 12 May 2021 15:30:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620833404; bh=1K6sckRj1Nh0mmfgqx9bldPd4ucfU4Vbj8aVmmDPsO8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iZWBjR9Gww1jFQ+r/V2PcouFFnOXxoLB0+CrtRlutkYA6hjKoJCLBIbTi8Aajt2Am M3piKcq4xQfkuCHlbH7BUe/MI39ZGl7i6wjF5gPCUkQ0LNtTfVbQLmBIWUHY8xlJgu nPgqvc9ad0AH24aTNzBDB5cweivN48wIkniUrGWE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Krzysztof Kozlowski , Sasha Levin Subject: [PATCH 5.11 135/601] ARM: dts: exynos: correct PMIC interrupt trigger level on P4 Note family Date: Wed, 12 May 2021 16:43:32 +0200 Message-Id: <20210512144832.272929980@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144827.811958675@linuxfoundation.org> References: <20210512144827.811958675@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>;