From patchwork Wed Oct 5 20:31:56 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lina Iyer X-Patchwork-Id: 9363393 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 64F986077E for ; Wed, 5 Oct 2016 20:35:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 57119285F7 for ; Wed, 5 Oct 2016 20:35:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4B52328CE6; Wed, 5 Oct 2016 20:35:19 +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=-4.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED, T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id B1D93285F7 for ; Wed, 5 Oct 2016 20:35:18 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1brst4-00087n-A3; Wed, 05 Oct 2016 20:33:58 +0000 Received: from mail-pf0-x236.google.com ([2607:f8b0:400e:c00::236]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1brsrl-0007Pb-8O for linux-arm-kernel@lists.infradead.org; Wed, 05 Oct 2016 20:32:38 +0000 Received: by mail-pf0-x236.google.com with SMTP id s13so92906568pfd.2 for ; Wed, 05 Oct 2016 13:32:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=0i6HfwbiZ1wMfiMuAPlG7GF37LzSnogluJOuKU/3IbI=; b=h/dvAa16v5kjd4Dmj3cmKSwCS19rTKtexPRh/sJwtugzuWmdm9d12H7y8o4yQJJlWz xh9dnpemCngqPnv+YfxQazOv4nLigLkkPpPRcbgbYsHF2xZTKx8i18wLqEzm3nuln+Wc KelkG6vJGijVAcG8IW5o3NXQDKgi7+f+GBMT8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=0i6HfwbiZ1wMfiMuAPlG7GF37LzSnogluJOuKU/3IbI=; b=SsPyxaIQOPfc2N47AyBv7lWajQLcRvWJyvaQT1mtm7+9k1PqlV2TX6imD5z3HS7Lgo JjJad8BkcQhBUkNz0MjN4O7MUgLxCWL6DbGsi2ZpK/cpUxkNR/XOeiLcZ8DrN3EV/Ylg jVX+1jAdwcEXkCp3+sImnJcIGkSKcDLWdcsgo7K2ehm4Qd/GnvpelI98Asn5YEeHiyR8 UQk4+eYzcNT1yjlbk0OiHrPz5LfSHRS8HlS7o3DsW2WuFAsA++XRPp/rN6apC215rv8h gk0/XLwNUOYJw2yP9t0QN346fZW+7PjWg3Df+dyD9vF4mjud4R/0lPQC0Bx13t7QkSFl +1rw== X-Gm-Message-State: AA6/9RmMzMV4ZRVjtzNiFOs/htdLxLlNHQLBy95qnXBNUEtmEQSP2/OxyR3xs2jQcTAQoQQk X-Received: by 10.98.59.5 with SMTP id i5mr10601878pfa.25.1475699536290; Wed, 05 Oct 2016 13:32:16 -0700 (PDT) Received: from ubuntu.localdomain (i-global254.qualcomm.com. [199.106.103.254]) by smtp.gmail.com with ESMTPSA id s80sm42999467pfd.10.2016.10.05.13.32.13 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 05 Oct 2016 13:32:15 -0700 (PDT) From: Lina Iyer To: ulf.hansson@linaro.org, khilman@kernel.org, rjw@rjwysocki.net, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 5/8] dt/bindings: Update binding for PM domain idle states Date: Wed, 5 Oct 2016 14:31:56 -0600 Message-Id: <1475699519-109623-6-git-send-email-lina.iyer@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1475699519-109623-1-git-send-email-lina.iyer@linaro.org> References: <1475699519-109623-1-git-send-email-lina.iyer@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20161005_133237_526769_D8E07C1E X-CRM114-Status: GOOD ( 10.31 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, lorenzo.pieralisi@arm.com, Juri.Lelli@arm.com, linux-arm-msm@vger.kernel.org, sboyd@codeaurora.org, Marc Titinger , brendan.jackman@arm.com, sudeep.holla@arm.com, andy.gross@linaro.org, Lina Iyer MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Update DT bindings to describe idle states of PM domains. This patch is based on the original patch by Marc Titinger. Cc: Signed-off-by: Marc Titinger Signed-off-by: Ulf Hansson Signed-off-by: Lina Iyer Acked-by: Rob Herring --- .../devicetree/bindings/power/power_domain.txt | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/Documentation/devicetree/bindings/power/power_domain.txt b/Documentation/devicetree/bindings/power/power_domain.txt index 025b5e7..a043315 100644 --- a/Documentation/devicetree/bindings/power/power_domain.txt +++ b/Documentation/devicetree/bindings/power/power_domain.txt @@ -29,6 +29,10 @@ Optional properties: specified by this binding. More details about power domain specifier are available in the next section. +- domain-idle-states : A phandle of an idle-state that shall be soaked into a + generic domain power state. The idle state definitions are + compatible with arm,idle-state specified in [1]. + Example: power: power-controller@12340000 { @@ -59,6 +63,36 @@ The nodes above define two power controllers: 'parent' and 'child'. Domains created by the 'child' power controller are subdomains of '0' power domain provided by the 'parent' power controller. +Example 3: + parent: power-controller@12340000 { + compatible = "foo,power-controller"; + reg = <0x12340000 0x1000>; + #power-domain-cells = <1>; + domain-idle-states = <&DOMAIN_RET, &DOMAIN_PWR_DN>; + }; + + child: power-controller@12341000 { + compatible = "foo,power-controller"; + reg = <0x12341000 0x1000>; + power-domains = <&parent 0>; + #power-domain-cells = <1>; + domain-idle-states = <&DOMAIN_PWR_DN>; + }; + + DOMAIN_RET: state@0 { + compatible = "arm,idle-state"; + entry-latency-us = <1000>; + exit-latency-us = <2000>; + min-residency-us = <10000>; + }; + + DOMAIN_PWR_DN: state@1 { + compatible = "arm,idle-state"; + entry-latency-us = <5000>; + exit-latency-us = <8000>; + min-residency-us = <7000>; + }; + ==PM domain consumers== Required properties: @@ -76,3 +110,5 @@ Example: The node above defines a typical PM domain consumer device, which is located inside a PM domain with index 0 of a power controller represented by a node with the label "power". + +[1]. Documentation/devicetree/bindings/arm/idle-states.txt