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=-11.5 required=3.0 tests=BAYES_00,DATE_IN_PAST_06_12, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 6E7CAC433E2 for ; Wed, 2 Sep 2020 03:00:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4F81A2068F for ; Wed, 2 Sep 2020 03:00:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727807AbgIBDA0 (ORCPT ); Tue, 1 Sep 2020 23:00:26 -0400 Received: from mga06.intel.com ([134.134.136.31]:23996 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727771AbgIBDAP (ORCPT ); Tue, 1 Sep 2020 23:00:15 -0400 IronPort-SDR: q7MvJ1OPJUMQUU3sUEE8jUgOlLtnlbHfKJgl2bm/G0kzsXTerqsEvgn5hjUJ+DXieydbgojRJR 9bc1RGE0SvgA== X-IronPort-AV: E=McAfee;i="6000,8403,9731"; a="218860140" X-IronPort-AV: E=Sophos;i="5.76,381,1592895600"; d="scan'208";a="218860140" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2020 20:00:15 -0700 IronPort-SDR: 9lZj3htYvueS7CIfcd2HU7Kl1IO37BAJ9u3WUipgf473BJRT+7yMUvw+bKrIIY4Qyw+NjR5OEf C1wsU6uNjAnA== X-IronPort-AV: E=Sophos;i="5.76,381,1592895600"; d="scan'208";a="283588236" Received: from bard-ubuntu.sh.intel.com ([10.239.13.33]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2020 20:00:11 -0700 From: Bard Liao To: alsa-devel@alsa-project.org, vkoul@kernel.org Cc: vinod.koul@linaro.org, linux-kernel@vger.kernel.org, tiwai@suse.de, broonie@kernel.org, gregkh@linuxfoundation.org, jank@cadence.com, srinivas.kandagatla@linaro.org, rander.wang@linux.intel.com, ranjani.sridharan@linux.intel.com, hui.wang@canonical.com, pierre-louis.bossart@linux.intel.com, sanyog.r.kale@intel.com, mengdong.lin@intel.com, bard.liao@intel.com Subject: [PATCH v2 09/10] soundwire: intel: pass link_mask information to each master Date: Tue, 1 Sep 2020 23:05:55 +0800 Message-Id: <20200901150556.19432-10-yung-chuan.liao@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200901150556.19432-1-yung-chuan.liao@linux.intel.com> References: <20200901150556.19432-1-yung-chuan.liao@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Pierre-Louis Bossart While the hardware exposes independent bits to power-up each master, the recommended sequence is to power all links or none. Idle links can still use the clock stop mode while the master is powered. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao --- drivers/soundwire/intel.h | 2 ++ drivers/soundwire/intel_init.c | 1 + 2 files changed, 3 insertions(+) diff --git a/drivers/soundwire/intel.h b/drivers/soundwire/intel.h index 23daab9da329..76820d0b9deb 100644 --- a/drivers/soundwire/intel.h +++ b/drivers/soundwire/intel.h @@ -18,6 +18,7 @@ * @shim_lock: mutex to handle access to shared SHIM registers * @shim_mask: global pointer to check SHIM register initialization * @clock_stop_quirks: mask defining requested behavior on pm_suspend + * @link_mask: global mask needed for power-up/down sequences * @cdns: Cadence master descriptor * @list: used to walk-through all masters exposed by the same controller */ @@ -33,6 +34,7 @@ struct sdw_intel_link_res { struct mutex *shim_lock; /* protect shared registers */ u32 *shim_mask; u32 clock_stop_quirks; + u32 link_mask; struct sdw_cdns *cdns; struct list_head list; }; diff --git a/drivers/soundwire/intel_init.c b/drivers/soundwire/intel_init.c index add46d8fc85c..65d9b9bd2106 100644 --- a/drivers/soundwire/intel_init.c +++ b/drivers/soundwire/intel_init.c @@ -255,6 +255,7 @@ static struct sdw_intel_ctx link->clock_stop_quirks = res->clock_stop_quirks; link->shim_lock = &ctx->shim_lock; link->shim_mask = &ctx->shim_mask; + link->link_mask = link_mask; memset(&pdevinfo, 0, sizeof(pdevinfo)); -- 2.17.1