From patchwork Wed May 12 14:43:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 437064 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 31B39C2B9F5 for ; Wed, 12 May 2021 15:20:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F1FE561999 for ; Wed, 12 May 2021 15:20:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233776AbhELPU7 (ORCPT ); Wed, 12 May 2021 11:20:59 -0400 Received: from mail.kernel.org ([198.145.29.99]:50356 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233390AbhELPSP (ORCPT ); Wed, 12 May 2021 11:18:15 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id A8C1D61992; Wed, 12 May 2021 15:07:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620832045; bh=Coh6JXz2vOwm7J5z1sImqTCDyPDtWeqbmw8ZAB9oigo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WbJFHUAsa6ze9jrdDfgdT0Ojm4ZdK5F0Dr7hwlswBChC07mHOSuXSrfhhqsQmwmoK 95/bphhzjARHD8TkUrnnM1r2lAciH6f3VOYEDR90VmIcILTwgva+kuZE5ov9vYPghI HfwpW2JDR/I30eTYIr9gkTiQYe+dvacBZZ9Ju66E= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Krzysztof Kozlowski , Sasha Levin Subject: [PATCH 5.10 120/530] ARM: dts: exynos: correct PMIC interrupt trigger level on Midas family Date: Wed, 12 May 2021 16:43:50 +0200 Message-Id: <20210512144823.754835461@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144819.664462530@linuxfoundation.org> References: <20210512144819.664462530@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 e52dcd6e70fab51f53292e53336ecb007bb60889 ] 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: 15dfdfad2d4a ("ARM: dts: Add basic dts for Exynos4412-based Trats 2 board") Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20201210212534.216197-5-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 a8eadcaa0a10..06450066b178 100644 --- a/arch/arm/boot/dts/exynos4412-midas.dtsi +++ b/arch/arm/boot/dts/exynos4412-midas.dtsi @@ -668,7 +668,7 @@ max77686: 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>;