From patchwork Mon May 15 05:49:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sunil V L X-Patchwork-Id: 682486 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D7ECCC77B7D for ; Mon, 15 May 2023 05:56:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239105AbjEOF4A (ORCPT ); Mon, 15 May 2023 01:56:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57788 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238926AbjEOFy5 (ORCPT ); Mon, 15 May 2023 01:54:57 -0400 Received: from mail-pl1-x635.google.com (mail-pl1-x635.google.com [IPv6:2607:f8b0:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D27184230 for ; Sun, 14 May 2023 22:51:40 -0700 (PDT) Received: by mail-pl1-x635.google.com with SMTP id d9443c01a7336-1ab1ce53ca6so87515465ad.0 for ; Sun, 14 May 2023 22:51:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1684129900; x=1686721900; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=yTcS6ERydBi3sd7UUw2QFTJaMwmeqvxl7dgO0DDj6Ys=; b=B/2s07xO4JsvpjeFQXLK9epGxKSolGR137ahXL6Xqpu6cvJdjAuvwFfJTToBH27hFx iU1eFj0lfQMJxAK3JCa7YpUoLShxQppRs9krLSWJt0lywC6dWcEPg/rXvsy8hGJZBrZQ aAqH2ZDdzbSNReetY5GYcij66xNie7S3Ek1SV0mHfB2S6EjF5fy4DYd2rkos7AXiUp7r A7mM1MxwDNuHsULDMKmoeD2CS+aY1S1YK7CEPqzDEfCTjgx/DjSdsn3f6HZ1Og81975E 71WOPu6Hm4MeLzAZvw6s1lAIaAMu94JwdS+HB8ZmbyvdOAqMnV3uLCalVpLAenNxNcVi 9S1A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684129900; x=1686721900; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=yTcS6ERydBi3sd7UUw2QFTJaMwmeqvxl7dgO0DDj6Ys=; b=SrLaRcFmOnswTg1Jagify7eD21GXMAVOfL2KzfRjDpuxewE6i7/noh6EkH7/ZIbAGa OCV1bmszGSoP+ivyyZfntADlQpYCvwenKaUJ/UkSYKcmUxdy1Rv2g8A1EeJxtk4sVubu 96KD8Mxw+drY28cPlQr3GocWnN7dPWHN5XbYmieaFFDa1xwDio9lRg100h20Tpk6GkfN vEo1JSMmQy4+5OJI1Bxg2OmxU78nHG+RcFK/L2CXEV/wma8TLfyWslw2CGiiZJZT4X5C g7Neol6olx1fHveOKzwUOz3Pis5qcM4niNpjb7ty7sK+hXm2+JvtjTfn+wPnj9VCAO0U CxMg== X-Gm-Message-State: AC+VfDz9vvvyYYNQFKpAL3+Sk9P4SfR19c8uv64Nvr8t3bIrUVarE/ua kRtpzrwdDO//6Zvyu777fTGywQ== X-Google-Smtp-Source: ACHHUZ5p6rTF1JyYq/6jX97XqVSLRtHjCcktupUgoSF3DN/rvwg29xnalX3XmhPORDR68lFdXczR3Q== X-Received: by 2002:a17:902:e80c:b0:1ab:1dff:9540 with SMTP id u12-20020a170902e80c00b001ab1dff9540mr41677533plg.14.1684129899921; Sun, 14 May 2023 22:51:39 -0700 (PDT) Received: from localhost.localdomain ([106.51.191.118]) by smtp.gmail.com with ESMTPSA id f10-20020a17090274ca00b001ab28f620d0sm12423277plt.290.2023.05.14.22.51.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 14 May 2023 22:51:39 -0700 (PDT) From: Sunil V L To: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-acpi@vger.kernel.org, linux-crypto@vger.kernel.org, platform-driver-x86@vger.kernel.org, llvm@lists.linux.dev Cc: Jonathan Corbet , Paul Walmsley , Palmer Dabbelt , Albert Ou , "Rafael J . Wysocki" , Len Brown , Sunil V L , Daniel Lezcano , Thomas Gleixner , Weili Qian , Zhou Wang , Herbert Xu , "David S . Miller" , Marc Zyngier , Maximilian Luz , Hans de Goede , Mark Gross , Nathan Chancellor , Nick Desaulniers , Tom Rix , "Rafael J . Wysocki" , Andrew Jones , Conor Dooley Subject: [PATCH V6 18/21] clocksource/timer-riscv: Add ACPI support Date: Mon, 15 May 2023 11:19:25 +0530 Message-Id: <20230515054928.2079268-19-sunilvl@ventanamicro.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230515054928.2079268-1-sunilvl@ventanamicro.com> References: <20230515054928.2079268-1-sunilvl@ventanamicro.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Initialize the timer driver based on RHCT table on ACPI based platforms. Currently, ACPI doesn't support a flag to indicate that the timer interrupt can wake up the cpu irrespective of its power state. It will be added in future update. Signed-off-by: Sunil V L Acked-by: Rafael J. Wysocki Reviewed-by: Andrew Jones Reviewed-by: Conor Dooley --- drivers/clocksource/timer-riscv.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c index cecc4662293b..da3071b387eb 100644 --- a/drivers/clocksource/timer-riscv.c +++ b/drivers/clocksource/timer-riscv.c @@ -10,6 +10,7 @@ #define pr_fmt(fmt) "riscv-timer: " fmt +#include #include #include #include @@ -207,3 +208,13 @@ static int __init riscv_timer_init_dt(struct device_node *n) } TIMER_OF_DECLARE(riscv_timer, "riscv", riscv_timer_init_dt); + +#ifdef CONFIG_ACPI +static int __init riscv_timer_acpi_init(struct acpi_table_header *table) +{ + return riscv_timer_init_common(); +} + +TIMER_ACPI_DECLARE(aclint_mtimer, ACPI_SIG_RHCT, riscv_timer_acpi_init); + +#endif