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=unavailable 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 EC286C48BDF for ; Fri, 18 Jun 2021 21:55:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CD61E6109E for ; Fri, 18 Jun 2021 21:55:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234791AbhFRV5u (ORCPT ); Fri, 18 Jun 2021 17:57:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33536 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234751AbhFRV5p (ORCPT ); Fri, 18 Jun 2021 17:57:45 -0400 Received: from mail-lf1-x12f.google.com (mail-lf1-x12f.google.com [IPv6:2a00:1450:4864:20::12f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4D3E2C06175F; Fri, 18 Jun 2021 14:55:34 -0700 (PDT) Received: by mail-lf1-x12f.google.com with SMTP id f30so18981696lfj.1; Fri, 18 Jun 2021 14:55:34 -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=YdXibpHOgSHnU/hUKAPdKMoTeqx/tW7n64WIU7TtpPR9U4uV4H5MFAsEX5Sh+KorIE 53omzn7BnM5pDFX/1KUmTkGqqaOxDiinpGsePghga9dWmoN66LCLRoL7XteyVi2zqecf PzNxf0EvTzklmlUqlgaBwiGV+4/r6jI0nY77C0XHxcskcTNJej4iUShz+STQaHuP0vDk 42e3RDSQLg/78+Pj3kwR2JU20aMd16WJ9/6BHFsU6DRPw1sM6Zr7iUafCBXkaTNeksTr 2FZ5dgb2NSvS+oVFu4smz/hOEseddc2sqZLijSgCrRbvqBO6CTjqLX/Vf52ikfJbkBVP UTsw== 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=hDzXnbagdwTfh81+X7ah7pDxBbasDTacDk1G3P0Zk87d+KzON0scJbTVumfvkxwcu6 4ML3MxE3jKeX4ootHacKUICY9OIiN2UEVrUsiIHjA34RsIYR4EUHTSBDzhbbiXXmuAWJ 9JolSYqkFI+lbZPvMRQq1zIn0ycAXVhQHW/OIWdclszHz9HkM+p5WLvTT+Nvlz4a7Fjv 8LW8k0dGLzzyHtCdK6tKc6aSI7hhD03+9HaUMeHisjQZ5QWqQ/uXBsGCQNqhDJEO5TTt DXBzJgiZ/jngEZevVgB5EedRQ04ItvvDNlIqCDwEISbfnbVwh2xcb5jEe+AFuDzovnST huMw== X-Gm-Message-State: AOAM533kwOf13o9as5LMyf6p6EfvQRri8Bw5gpO0PXcZqG6lB/5i1/1O osC/qbUwGTSAw2/A7Bwsm2Q= X-Google-Smtp-Source: ABdhPJzzHnxeDGZroUCgjgrm208BDlJcQ4bzqtC9x+fACBEiddckixyyxbx45r894v9YHyR9OOVtig== X-Received: by 2002:ac2:5581:: with SMTP id v1mr17506lfg.414.1624053332696; Fri, 18 Jun 2021 14:55:32 -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 b20sm791773ljo.138.2021.06.18.14.55.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Jun 2021 14:55:32 -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 v3 3/4] hwmon: (lm90) Unmask hardware interrupt Date: Sat, 19 Jun 2021 00:54:54 +0300 Message-Id: <20210618215455.19986-4-digetx@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210618215455.19986-1-digetx@gmail.com> References: <20210618215455.19986-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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