From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 914E91EDA32; Wed, 4 Mar 2026 18:17:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772648222; cv=none; b=Y/o/ilzd+MZg2L47shXs+hLRd36rdlYggHl2xtpooTb1AtGUJTPncLDVjUr3HcyVbNdLWpVuJk6Sq/bWWiHDetjFVq2tGNkQuPyGK/67FsABhZkNgL3unlQX9kOS9j7pLcTVrh7ytvB0vH81zuhvrqHX+Nl+eOtLmXSSnEEEuqs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772648222; c=relaxed/simple; bh=u5w8JFVQh9V063Ayn3LoWkO1eI87LCfsVRka5iu9rx0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=sIx9UadUxm68cNvyxLEgoWUIYM6C3tuje0X5vWMP7PEDBkpy7o7c5YWoSDBmXrBd3b/bZuxPRe/ebi2GgCtSbLFWE15mNlj9Icmam7evKgHfnRzmWdPXknm8w0dcJ9idICOzEC4YNTHQoVG2JzpIc6/JUGGZZLHnzBRBAwnWD74= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DmQn7JL6; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DmQn7JL6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E44EDC4CEF7; Wed, 4 Mar 2026 18:17:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772648222; bh=u5w8JFVQh9V063Ayn3LoWkO1eI87LCfsVRka5iu9rx0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DmQn7JL6Eu/+0RmDoHMDzYFbdBP3JiJZgE/qxYJJkMe+PS5Mvmw9yalL5oA36+l/B uYzOyxxDlkDFz0cfpga186fW/p6TlKFmi5k2YqhbjrQxfP860D5L5v+fYiQyPq2G2w vfSvGztpVh0Y4f6Q83+JiMMoocY5FPdNrt47z6Dk4zsCtvoNaVLp6ExFo3TTBuMmLQ ZQuJgqnR9IVPKolQABj+jaG77iSSMEWisxNeSyx2Pf9Kkt5RUdMIOXhdDklIWnQRJ8 p9ojUdfqi96bGA4393kdQMHqqHJmQyR7b8sI5Xbf3WcvuliENYR81YwU/HlcI5hO+m 93EiyjTWcxdpA== From: "Rafael J. Wysocki" To: Linux ACPI Cc: Alexandre Belloni , LKML , linux-rtc@vger.kernel.org, Linux PM Subject: [PATCH v1 7/7] ACPI: TAD: Update the driver description comment Date: Wed, 04 Mar 2026 19:16:48 +0100 Message-ID: <23034847.EfDdHjke4D@rafael.j.wysocki> Organization: Linux Kernel Development In-Reply-To: <5092662.31r3eYUQgx@rafael.j.wysocki> References: <5092662.31r3eYUQgx@rafael.j.wysocki> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="UTF-8" From: Rafael J. Wysocki Update the preamble comment describing the driver to match the code after previous changes along with the copyright information. No functional impact. Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpi_tad.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) --- a/drivers/acpi/acpi_tad.c +++ b/drivers/acpi/acpi_tad.c @@ -2,12 +2,10 @@ /* * ACPI Time and Alarm (TAD) Device Driver * - * Copyright (C) 2018 Intel Corporation + * Copyright (C) 2018 - 2026 Intel Corporation * Author: Rafael J. Wysocki * - * This driver is based on Section 9.18 of the ACPI 6.2 specification revision. - * - * It only supports the system wakeup capabilities of the TAD. + * This driver is based on ACPI 6.6, Section 9.17. * * Provided are sysfs attributes, available under the TAD platform device, * allowing user space to manage the AC and DC wakeup timers of the TAD: @@ -18,6 +16,11 @@ * * The wakeup events handling and power management of the TAD is expected to * be taken care of by the ACPI PM domain attached to its platform device. + * + * If the TAD supports the get/set real time features, as indicated by the + * capability mask returned by _GCP under the TAD object, additional sysfs + * attributes are created allowing the real time to be set and read and an RTC + * class device is registered under the TAD platform device. */ #include @@ -32,7 +35,7 @@ MODULE_DESCRIPTION("ACPI Time and Alarm MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Rafael J. Wysocki"); -/* ACPI TAD capability flags (ACPI 6.2, Section 9.18.2) */ +/* ACPI TAD capability flags (ACPI 6.6, Section 9.17.2) */ #define ACPI_TAD_AC_WAKE BIT(0) #define ACPI_TAD_DC_WAKE BIT(1) #define ACPI_TAD_RT BIT(2)