From mboxrd@z Thu Jan 1 00:00:00 1970 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 AC89EC49EA4 for ; Fri, 18 Jun 2021 21:12:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8E295613FB for ; Fri, 18 Jun 2021 21:12:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234501AbhFRVOt (ORCPT ); Fri, 18 Jun 2021 17:14:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52132 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234488AbhFRVOs (ORCPT ); Fri, 18 Jun 2021 17:14:48 -0400 Received: from mail-lj1-x234.google.com (mail-lj1-x234.google.com [IPv6:2a00:1450:4864:20::234]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1595DC061574; Fri, 18 Jun 2021 14:12:37 -0700 (PDT) Received: by mail-lj1-x234.google.com with SMTP id x14so15769550ljp.7; Fri, 18 Jun 2021 14:12:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=MeY6wV2QzE9NSk+VpIFpZHo+rQw4MCvKxWcvQ8OvFGU=; b=ldzX5ODiQl04CIVwHg739Cs2Sj6BldgiRcPzF89bnaKpmEfIH6XA4TRwQdJ2mt8Y7U 1nX/GxCn1mOyiP/tNgzgpe3LoDJCu8YfKx4shy9SIr+zQ90rsNU9m5e4sfEGiy/3YWe+ LG8g6XTP0yzZlyuxPr9b3rHZCrAPaX8MKBVqBm3UTYqopC8y416+AYjwz2sh+BZOkTTe 2qQgLvS4RpDSvhOmwEBBzkpqcnjxtcWbWeL5I9QYxZdrn/TEG+Wgy4Yh8G+5q9gZPBxO auWqokaTGdzSw84JEIpxYSi5wfjrJHgXGpXY5UVuENam1MloaYFUSLNB89jp3OA+Kzz7 kc9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=MeY6wV2QzE9NSk+VpIFpZHo+rQw4MCvKxWcvQ8OvFGU=; b=qM+19i6XMH7mgnyQQCqeX3iwZTG9BXqHisIk7UDMm2BzLQV8kqDMf09JB1HUuD9XjP LTK+r4KLaYyaVzuc3m64XpIoQM9iIDrkp1OZuFYfRzkVIp7qadEVNqcABseRejJuskSo TpvpjJRHbRTI9CvxyyNpBX7Q5+MUciwMHaViTZFhEjHh1C5AYW6kk2uyAB9IGn/gIjf0 72mzCyRquA+UKDY64cH1ULQzDqRayG5XyYOv+UTjgAyRB48Hwk+ug3W1794OyirGF9x3 BiRIvGodv6BhlF1wAbIXqQ5YfpeLaknIeGFqxjCkXvf9+Fc1gjkC7Omc6BtNG5h+Gt8j ee7g== X-Gm-Message-State: AOAM530xQXMOPeh216Cp+3XUl74oEXa6nr80Ki67FnXpXILNydsH2CvZ wn9/Tc+XtJ1L1A+0xUxR7HQ= X-Google-Smtp-Source: ABdhPJyNtmQgKHp6+KHVP3Bfj3OBMK62gLUpgyZwtfzSiIgQ9asfhF5OsOLcCgWxi4myUgFFl7ufBg== X-Received: by 2002:a05:651c:294:: with SMTP id b20mr11492718ljo.156.1624050755432; Fri, 18 Jun 2021 14:12:35 -0700 (PDT) Received: from localhost.localdomain (94-29-29-31.dynamic.spd-mgts.ru. [94.29.29.31]) by smtp.gmail.com with ESMTPSA id a8sm1183802ljq.127.2021.06.18.14.12.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Jun 2021 14:12:35 -0700 (PDT) From: Dmitry Osipenko To: Jean Delvare , Guenter Roeck Cc: linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v2 3/4] hwmon: (lm90) Unmask hardware interrupt Date: Sat, 19 Jun 2021 00:12:01 +0300 Message-Id: <20210618211202.2938-4-digetx@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210618211202.2938-1-digetx@gmail.com> References: <20210618211202.2938-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org The ALERT interrupt is enabled by default after power-on, but it could be masked by bootloader. For example this is the case on Acer A500 tablet device. Unmask the hardware interrupt if interrupt is provided. Signed-off-by: Dmitry Osipenko --- drivers/hwmon/lm90.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index e7b678a40b39..658b486d2f5e 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -1704,6 +1704,13 @@ static int lm90_init_client(struct i2c_client *client, struct lm90_data *data) if (data->kind == max6696) config &= ~0x08; + /* + * Interrupt is enabled by default on reset, but it may be disabled + * by bootloader, unmask it. + */ + if (client->irq) + config &= ~0x80; + config &= 0xBF; /* run */ lm90_update_confreg(data, config); -- 2.30.2