From patchwork Thu Mar 2 10:36:26 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Kurtz X-Patchwork-Id: 9599915 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 1EB2760414 for ; Thu, 2 Mar 2017 10:44:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F21072858A for ; Thu, 2 Mar 2017 10:44:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E6631285A3; Thu, 2 Mar 2017 10:44:17 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 847392858A for ; Thu, 2 Mar 2017 10:44:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751016AbdCBKoO (ORCPT ); Thu, 2 Mar 2017 05:44:14 -0500 Received: from mail-pg0-f47.google.com ([74.125.83.47]:33716 "EHLO mail-pg0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750771AbdCBKoN (ORCPT ); Thu, 2 Mar 2017 05:44:13 -0500 Received: by mail-pg0-f47.google.com with SMTP id 25so31190259pgy.0 for ; Thu, 02 Mar 2017 02:43:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id; bh=/F5UHiJxhaa8zwzB10SfagGUtO2hpo1zp5oh15sB+Jo=; b=JnLcKSD7R+j60x2USPfhLyOyZkqZsqzF7oMFdQcJ+8jnqxSvEjUUI4PH0E77fEXeUW J0IBgvPc79FaJkDqLBK1gcAFtfMB5eVE9ApqogFygsCKoo9bvZ34TIeERJb1xKVNUcNS 3fkR4jko/zK+sQTIQR2p2gmFdZkIPEdC4b8Ew= 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; bh=/F5UHiJxhaa8zwzB10SfagGUtO2hpo1zp5oh15sB+Jo=; b=Q5efkYe5IdFi9U/vLHm+gd4bIKKKsWdgWXU3fFsvjOuXJezBm5UWFa3K9hvY/jiUsR NH1PrKRjlucxdG/dMguhEs300f/B1ny3PpJcw2g8zUV1BbFwsYh7gqx75OhP5K1MnSmd ab3/R1BTGhcgKH4ZHrewXsQlM1pdxD2R7W+cTmrvi07EZo6FxnMkof3Zup+8xsgx/nil 4O/oLdAwie+Z3IWZ9bbRR6r6DpxPEoaEW5IV7+nkz9uxmpJD1vpJyW8DtbAuyg+JhcgP 4kdwOJR6gxHeg3f2nFy6hqGGKNSWSoYjLfyaVy8EWhCc8Zcmeb8/El4bTDbNhaQ3jmWp 9Abw== X-Gm-Message-State: AMke39mIYm8NEO4CPtpTIreiYGAfKHmD2LBoTPrUYUfJTOJafNJbWeTfKomFPMFfeB+9fUNJ X-Received: by 10.99.136.74 with SMTP id l71mr14596801pgd.143.1488450997536; Thu, 02 Mar 2017 02:36:37 -0800 (PST) Received: from djkurtz-z840.tpe.corp.google.com ([172.30.210.11]) by smtp.gmail.com with ESMTPSA id s3sm16257055pgn.55.2017.03.02.02.36.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 02 Mar 2017 02:36:36 -0800 (PST) From: Daniel Kurtz Cc: Yidi Lin , Nicolas Boichat , Daniel Kurtz , "Rafael J. Wysocki" , Viresh Kumar , Matthias Brugger , linux-pm@vger.kernel.org (open list:CPU FREQUENCY DRIVERS), linux-kernel@vger.kernel.org (open list), linux-arm-kernel@lists.infradead.org (moderated list:ARM/Mediatek SoC support), linux-mediatek@lists.infradead.org (moderated list:ARM/Mediatek SoC support) Subject: [PATCH] cpufreq: mt8173: Add support for MT8176 and MT817x compatibles Date: Thu, 2 Mar 2017 18:36:26 +0800 Message-Id: <20170302103626.69195-1-djkurtz@chromium.org> X-Mailer: git-send-email 2.12.0.rc1.440.g5b76565f74-goog To: unlisted-recipients:; (no To-header on input) Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The Mediatek MT8173 is just on of several SOCs from the same MT817x family, including the 6-core (4-little/2-big) MT8176. The mt8173-cpufreq driver supports all of these SOCs, however, machines using them may use a different machine compatible. Since this driver checks explicitly for the machine compatible string, add support for the whole family. Signed-off-by: Daniel Kurtz --- This patch is based on the compatibles added by the MT8176 series: https://patchwork.kernel.org/patch/9573209/ https://patchwork.kernel.org/patch/9573213/ drivers/cpufreq/mt8173-cpufreq.c | 25 +++++++++++++++++++++++-- 1 file changed, 23 insertions(+), 2 deletions(-) diff --git a/drivers/cpufreq/mt8173-cpufreq.c b/drivers/cpufreq/mt8173-cpufreq.c index ab25b1235a5e..07f7aac56f31 100644 --- a/drivers/cpufreq/mt8173-cpufreq.c +++ b/drivers/cpufreq/mt8173-cpufreq.c @@ -573,13 +573,34 @@ static struct platform_driver mt8173_cpufreq_platdrv = { .probe = mt8173_cpufreq_probe, }; +/* List of machine compatible strings supported by this driver */ +static const char *mt8173_cpufreq_machines[] = { + "mediatek,mt817x", + "mediatek,mt8173", + "mediatek,mt8176", +}; + +static int mt8173_cpufreq_is_compatible(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(mt8173_cpufreq_machines); i++) + if (of_machine_is_compatible(mt8173_cpufreq_machines[i])) + return 0; + + return -ENODEV; +} + static int mt8173_cpufreq_driver_init(void) { struct platform_device *pdev; int err; - if (!of_machine_is_compatible("mediatek,mt8173")) - return -ENODEV; + err = mt8173_cpufreq_is_compatible(); + if (err) { + pr_err("Machine is not compatible with 'mediatek,mt8173'\n"); + return err; + } err = platform_driver_register(&mt8173_cpufreq_platdrv); if (err)