From patchwork Thu Feb 23 07:02:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kai-Heng Feng X-Patchwork-Id: 656186 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 11428C636D7 for ; Thu, 23 Feb 2023 07:04:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232801AbjBWHEF (ORCPT ); Thu, 23 Feb 2023 02:04:05 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52402 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232470AbjBWHEF (ORCPT ); Thu, 23 Feb 2023 02:04:05 -0500 Received: from smtp-relay-canonical-0.canonical.com (smtp-relay-canonical-0.canonical.com [185.125.188.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A05A84AFE9; Wed, 22 Feb 2023 23:03:48 -0800 (PST) Received: from localhost.localdomain (unknown [10.101.196.174]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-canonical-0.canonical.com (Postfix) with ESMTPSA id 1CC6B3F116; Thu, 23 Feb 2023 07:03:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1677135827; bh=CcSI32gZ7c8S1OzBEvrF82hTekSR867LXozzHErLs6A=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=L4BExEmNk2RJDQrEB+V+MfwoSGnpouK0snNESz7nMrwsaL5QBVo8j1c72eRpu3vxj nxt6awngHrHP4dZfjLxKYgtUuMbY511t+gWMI3sO6qdGpsY2BXPETS5d5L0eTM4i8b n6vUGHCX6kNX0vg7FKGJf4S/lnR6YmnNxPdCokMY58FVViSN4XGps/hqi60ZbWvxjM 2yHE/a3kWM/i6G/jQhooA8lfAFcDhSDXVRY3CHfZ/6PNuPogfuPhk/YEe/XlZ1oDx6 G6z1LSQWKqvy9+qB5hFmH5YS5nIcCvJyipzcFnpQFMiqbcFjVNG0kPJ7/Sg+4bdrzh 4H/ey04Lyd6PA== From: Kai-Heng Feng To: ray.huang@amd.com Cc: mario.limonciello@amd.com, Kai-Heng Feng , "Rafael J. Wysocki" , Viresh Kumar , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] cpufreq: amd-pstate: Let user know amd-pstate is disabled Date: Thu, 23 Feb 2023 15:02:52 +0800 Message-Id: <20230223070252.2029174-1-kai.heng.feng@canonical.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Commit 202e683df37c ("cpufreq: amd-pstate: add amd-pstate driver parameter for mode selection") changed the driver to be disabled by default, and this can surprise users. Let users know what happened so they can decide what to do next. Link: https://bugs.launchpad.net/bugs/2006942 Signed-off-by: Kai-Heng Feng Acked-by: Huang Rui --- v2: - Remove redundancy in pr_info(). - Fix spelling and URL tag. drivers/cpufreq/amd-pstate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c index 45c88894fd8e..f965f54f7ae7 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -1263,7 +1263,7 @@ static int __init amd_pstate_init(void) * with amd_pstate=passive or other modes in kernel command line */ if (cppc_state == AMD_PSTATE_DISABLE) { - pr_debug("driver load is disabled, boot with specific mode to enable this\n"); + pr_info("driver load is disabled, boot with specific mode to enable this\n"); return -ENODEV; }