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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,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 32C47C48BC2 for ; Mon, 21 Jun 2021 20:05:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 171E061153 for ; Mon, 21 Jun 2021 20:05:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231805AbhFUUHu (ORCPT ); Mon, 21 Jun 2021 16:07:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231717AbhFUUHo (ORCPT ); Mon, 21 Jun 2021 16:07:44 -0400 Received: from mail-lj1-x229.google.com (mail-lj1-x229.google.com [IPv6:2a00:1450:4864:20::229]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EBCCDC061756 for ; Mon, 21 Jun 2021 13:05:28 -0700 (PDT) Received: by mail-lj1-x229.google.com with SMTP id g13so16612286ljj.10 for ; Mon, 21 Jun 2021 13:05:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=semihalf-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=j6aAyIi+XtBCw6wYHWjVuD7ADYttGvdZ1z2bvHqZj1U=; b=CB1YfmSkP5KLCU5a4n59qBKb4NQk7ovW7vCE1BkkSMe8nAJJYjMjjy86CslKSGGUkL hX1sP7jxhYjtWY+4fiyr0+H2KTMQGIaamTA4yKU3fyCrGuxu+UYgfXjJvBFN++C/Vfw0 qLaqDifr1Gzodo9s5cUxdvbDscADRuEwhEjgxfIFINfAnuI3GvQjAu5sipTfyEYbuKVh BKuZLe+/+xbZxP0+Q9q/BXprhBtjSH3JDbxeedh9Bma8vMNqNeB9cPwYaHWVIgEXCTUx 58v10sza/xjekeBZMIMTk1IpRHZpI9fyFk5PG+ZP4ngGuEmOxG2OPi5j0Z8aIrTvmvny FV1w== 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:mime-version :content-transfer-encoding; bh=j6aAyIi+XtBCw6wYHWjVuD7ADYttGvdZ1z2bvHqZj1U=; b=sP3zGLRw4mVQaAgLjcYw9ahu28JcfqDj+Zbj6Qm+5NAAKMyYQb1YtlVdRZkxgnf5LN jJHEwBS8XZvm6WSsQ3umoS8Lzb8xI0ZW4wvkdRF1yDRS6bfz4AqpIJl2n/RRrq2+Qs6j ENZw8qxns8la11YjzUEk/QUk26a2woRtQ/glJJAIyguda4TeRlmcZX1G6su4GOsgiwXV 2SaAHkLkstufDxkhXK1VLyC+fCtQz3cyqcv6Qywk+QQKfdhwpr7BoUlY/9Ci5/j2nAEU axxQXVHU36z7+aZjKZKBq7cSZyZWJfWB87vMt1koOYKTN6ieubWEJTT2WYnNo55faY3v c8YQ== X-Gm-Message-State: AOAM531jBStsyO5YvPzh+cJZ3PlQRowxKTU65i3MS5StREPeykQgA1pb Acit0mrT43xCWXUHK3lJoazbbx52QdJaBw== X-Google-Smtp-Source: ABdhPJzsj6xCgfa2wIRqTg20r4G81qjBd+Mlwr1su74cWgm3AMYoE7btXEgJSOmT3QctpSiqmr13PQ== X-Received: by 2002:a2e:a263:: with SMTP id k3mr73471ljm.41.1624305927219; Mon, 21 Jun 2021 13:05:27 -0700 (PDT) Received: from gilgamesh.lab.semihalf.net ([83.142.187.85]) by smtp.gmail.com with ESMTPSA id c12sm1968828lfp.179.2021.06.21.13.05.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Jun 2021 13:05:26 -0700 (PDT) From: Marcin Wojtas To: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, devel@acpica.org Cc: jaz@semihalf.com, gjb@semihalf.com, upstream@semihalf.com, Samer.El-Haj-Mahmoud@arm.com, jon@solid-run.com, tn@semihalf.com, rjw@rjwysocki.net, lenb@kernel.org, erik.kaneda@intel.com, robert.moore@intel.com, Marcin Wojtas Subject: [net-next: PATCH v3 1/1] ACPI: SPCR: Add new 16550-compatible Serial Port Subtype Date: Mon, 21 Jun 2021 22:04:59 +0200 Message-Id: <20210621200459.3558199-1-mw@semihalf.com> X-Mailer: git-send-email 2.29.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The Microsoft Debug Port Table 2 (DBG2) specification revision May 31, 2017 adds support for 16550-compatible Serial Port Subtype with parameters defined in Generic Address Structure (GAS) [1] Add its support in SPCR parsing routine. [1] https://docs.microsoft.com/en-us/windows-hardware/drivers/bringup/acpi-debug-port-table Signed-off-by: Marcin Wojtas --- include/acpi/actbl1.h | 1 + drivers/acpi/spcr.c | 1 + 2 files changed, 2 insertions(+) diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h index ce59903c2695..f746012eba8d 100644 --- a/include/acpi/actbl1.h +++ b/include/acpi/actbl1.h @@ -498,6 +498,7 @@ struct acpi_dbg2_device { #define ACPI_DBG2_ARM_SBSA_GENERIC 0x000E #define ACPI_DBG2_ARM_DCC 0x000F #define ACPI_DBG2_BCM2835 0x0010 +#define ACPI_DBG2_16550_WITH_GAS 0x0012 #define ACPI_DBG2_1394_STANDARD 0x0000 diff --git a/drivers/acpi/spcr.c b/drivers/acpi/spcr.c index 88460bacd5ae..25c2d0be953e 100644 --- a/drivers/acpi/spcr.c +++ b/drivers/acpi/spcr.c @@ -136,6 +136,7 @@ int __init acpi_parse_spcr(bool enable_earlycon, bool enable_console) break; case ACPI_DBG2_16550_COMPATIBLE: case ACPI_DBG2_16550_SUBSET: + case ACPI_DBG2_16550_WITH_GAS: uart = "uart"; break; default: -- 2.29.0