From patchwork Fri Aug 23 08:17:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maulik Shah X-Patchwork-Id: 11110977 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EB7B914DE for ; Fri, 23 Aug 2019 08:19:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C973423406 for ; Fri, 23 Aug 2019 08:19:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="Iz2ah46L"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="k30Xn9JB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388833AbfHWIS5 (ORCPT ); Fri, 23 Aug 2019 04:18:57 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:42748 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732778AbfHWIS5 (ORCPT ); Fri, 23 Aug 2019 04:18:57 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 8434861344; Fri, 23 Aug 2019 08:18:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1566548336; bh=UABwReuV4uLf5XPJeD7w3YQaYU9rOM7wgslH6gRuocE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Iz2ah46LzHbSJG5ukp75O3QWACKIMoBaeWNYpbYheUtK3IMh6aepPQA5ehKcYCkk9 MIPFjzK+GiJAR4xIiiZdvn9s7utkShUWyvjQ/0TaxG+7WmTdiKDXZoyrL+w0y61pcN dz4LTWnmo1oZaddySx2t9r4+i8V/av9y0lzIavOY= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=2.0 tests=ALL_TRUSTED,BAYES_00, DKIM_INVALID,DKIM_SIGNED,SPF_NONE autolearn=no autolearn_force=no version=3.4.0 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@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 7CDE761231; Fri, 23 Aug 2019 08:18:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1566548334; bh=UABwReuV4uLf5XPJeD7w3YQaYU9rOM7wgslH6gRuocE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=k30Xn9JBc+s0ckEh2xby+H7xQI7sJuwKgAZlmRHOPBBG9qmF2ZrWuTeAzHKEGVs+e ATHGNGHixIJDvM2MYeSUlVxHsqZ5YQecWh1f1hBHqS0rU/sp25VPVtWtlexKYo7dmU vUVha8morEyXbCj5HlOZz3KvMAb0yWiRmKgYQIMU= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 7CDE761231 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=mkshah@codeaurora.org From: Maulik Shah To: swboyd@chromium.org, agross@kernel.org, david.brown@linaro.org, linux-arm-msm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, bjorn.andersson@linaro.org, evgreen@chromium.org, dianders@chromium.org, rnayak@codeaurora.org, ilina@codeaurora.org, lsrao@codeaurora.org, ulf.hansson@linaro.org, Maulik Shah , devicetree@vger.kernel.org Subject: [PATCH v2 3/6] dt-bindings: soc: qcom: Add RSC power domain specifier Date: Fri, 23 Aug 2019 13:47:00 +0530 Message-Id: <20190823081703.17325-4-mkshah@codeaurora.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190823081703.17325-1-mkshah@codeaurora.org> References: <20190823081703.17325-1-mkshah@codeaurora.org> MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@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 | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt b/Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt index 9b86d1eff219..d0ab6e9b6745 100644 --- a/Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt +++ b/Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt @@ -83,6 +83,13 @@ Properties: Value type: Definition: Name for the RSC. The name would be used in trace logs. +- #power-domain-cells: + Usage: optional + Value type: + Definition: 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 +119,7 @@ TCS-OFFSET: 0xD00 , , ; + #power-domain-cells = <0>; }; Example 2: