From patchwork Mon Feb 3 13:35:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maulik Shah X-Patchwork-Id: 205184 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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 7820EC33CAC for ; Mon, 3 Feb 2020 13:37:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 46BCA20CC7 for ; Mon, 3 Feb 2020 13:37:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="ulF8OvZY" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727977AbgBCNhW (ORCPT ); Mon, 3 Feb 2020 08:37:22 -0500 Received: from mail25.static.mailgun.info ([104.130.122.25]:23723 "EHLO mail25.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727347AbgBCNhW (ORCPT ); Mon, 3 Feb 2020 08:37:22 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1580737042; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=hzVPZL4VtKtArOeylhakFEa12U0ksSDJ+F88Oy/mtJc=; b=ulF8OvZYwgLqSHzc2RlCZ96HgdW2jxgRhfxNW+wpfx6WydSjRRAZUOWaUrRqI8Tfwl+gs+VY +t2aDv6VzR4Z8wfe5241PAu1AOun0buR20dxyWhmnGKpfkT1pmIAT/QS4MqNqWZydYbkkMc+ DhQ7XfoEZpX4bTBftjd4heX2Vh8= X-Mailgun-Sending-Ip: 104.130.122.25 X-Mailgun-Sid: WyI1YmJiNiIsICJkZXZpY2V0cmVlQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5e38220e.7fd29cc8ca08-smtp-out-n01; Mon, 03 Feb 2020 13:37:18 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 19FF4C447AB; Mon, 3 Feb 2020 13:37:17 +0000 (UTC) Received: from mkshah-linux.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: mkshah) by smtp.codeaurora.org (Postfix) with ESMTPSA id E6471C447A1; Mon, 3 Feb 2020 13:37:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org E6471C447A1 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=mkshah@codeaurora.org From: Maulik Shah To: swboyd@chromium.org, agross@kernel.org, david.brown@linaro.org, sudeep.holla@arm.com, Lorenzo.Pieralisi@arm.com Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, bjorn.andersson@linaro.org, evgreen@chromium.org, dianders@chromium.org, rnayak@codeaurora.org, ilina@codeaurora.org, lsrao@codeaurora.org, ulf.hansson@linaro.org, rjw@rjwysocki.net, Maulik Shah , devicetree@vger.kernel.org Subject: [PATCH v3 3/7] dt-bindings: soc: qcom: Add RSC power domain specifier Date: Mon, 3 Feb 2020 19:05:36 +0530 Message-Id: <1580736940-6985-4-git-send-email-mkshah@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1580736940-6985-1-git-send-email-mkshah@codeaurora.org> References: <1580736940-6985-1-git-send-email-mkshah@codeaurora.org> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org In addition to transmitting resource state requests to the remote processor, the RSC is responsible for powering off/lowering the requirements from CPUs subsystem for the associated hardware like buses, clocks, and regulators when all CPUs and cluster is powered down. The power domain is configured to a low power state and when all the CPUs are powered down, the RSC can lower resource state requirements and power down the rails that power the CPUs. Add PM domain specifier property for RSC controller. Cc: devicetree@vger.kernel.org Signed-off-by: Maulik Shah Reviewed-by: Stephen Boyd --- Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt b/Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt index 9b86d1e..5682806 100644 --- a/Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt +++ b/Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt @@ -83,6 +83,14 @@ Properties: Value type: Definition: Name for the RSC. The name would be used in trace logs. +- #power-domain-cells: + Usage: optional + Value type: + Definition: Must be 0. Number of cells in power domain specifier. + Optional for controllers that may be in 'solver' state + where they can be in autonomous mode executing low power + modes. + Drivers that want to use the RSC to communicate with RPMH must specify their bindings as child nodes of the RSC controllers they wish to communicate with. @@ -112,6 +120,7 @@ TCS-OFFSET: 0xD00 , , ; + #power-domain-cells = <0>; }; Example 2: