From patchwork Tue Oct 7 21:31:24 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lina Iyer X-Patchwork-Id: 5049431 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 015C7C11AB for ; Tue, 7 Oct 2014 21:35:35 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3D283201F2 for ; Tue, 7 Oct 2014 21:35:34 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 687FB201F7 for ; Tue, 7 Oct 2014 21:35:33 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XbcNA-00019X-Ho; Tue, 07 Oct 2014 21:32:44 +0000 Received: from mail-pd0-f171.google.com ([209.85.192.171]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XbcMq-0000xw-6S for linux-arm-kernel@lists.infradead.org; Tue, 07 Oct 2014 21:32:24 +0000 Received: by mail-pd0-f171.google.com with SMTP id ft15so5694199pdb.16 for ; Tue, 07 Oct 2014 14:32:00 -0700 (PDT) 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=qUz8wVIz0QjXZ8C/v/3QyceakYFd937yYHT+4PPLRc0=; b=Zh1OKQ2osi3cJUn+fJnO+EZWMcwHvV/x9Q8nR+EznrYHsGdTTbXgkJtf09Bds8XDzO 3ZYrVusNaGXKACq7CEylNUdK0bFI8vZiIZt8VcSh6Eof13mXE6Wnlg2zlwcYh84K6ASM 56w1B6B2j6kpV3LWsI5otte0zFsSl4WBvrOT4hURoDlQK0fj7chCgaX3XGpS2I7qm/gH PRACsy3Z+uTz8FCpgtN9JwiDeeeAxx2IZbGyKCbJk3u0/VaED1MF3paPrHi7R7XJK8x0 KrQCK4X12K5ehEh2XIPvArgmUAHBToHbdwL1v7uANm0vn/MwWZc3/QglG27d9OUdDCQn NGNA== X-Gm-Message-State: ALoCoQmuhi7wcwdYR5Bh3iJuBWy6ykkEuSsrhw93ir34KWXzuI2eIzVw+Uj9R9kJ2Fm6RziSO6+d X-Received: by 10.70.131.230 with SMTP id op6mr6393117pdb.32.1412717520801; Tue, 07 Oct 2014 14:32:00 -0700 (PDT) Received: from ubuntu.localdomain (proxy6-global253.qualcomm.com. [199.106.103.253]) by mx.google.com with ESMTPSA id rh5sm5360068pdb.4.2014.10.07.14.31.58 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 07 Oct 2014 14:32:00 -0700 (PDT) From: Lina Iyer To: daniel.lezcano@linaro.org, khilman@linaro.org, sboyd@codeaurora.org, galak@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 6/7] arm: dts: qcom: Add idle states device nodes for 8974 Date: Tue, 7 Oct 2014 15:31:24 -0600 Message-Id: <1412717485-16892-6-git-send-email-lina.iyer@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1412717485-16892-1-git-send-email-lina.iyer@linaro.org> References: <1412717485-16892-1-git-send-email-lina.iyer@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141007_143224_255670_5B783944 X-CRM114-Status: UNSURE ( 8.81 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.7 (/) Cc: msivasub@codeaurora.org, devicetree@vger.kernel.org, lorenzo.pieralisi@arm.com, Lina Iyer X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add allowable C-States for each cpu using the cpu-idle-states node. Support Standby and Standalone power collapse (power down that does not affect any SoC idle states) for each cpu. Signed-off-by: Lina Iyer --- arch/arm/boot/dts/qcom-msm8974.dtsi | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi b/arch/arm/boot/dts/qcom-msm8974.dtsi index 70c4329..a5e51fe 100644 --- a/arch/arm/boot/dts/qcom-msm8974.dtsi +++ b/arch/arm/boot/dts/qcom-msm8974.dtsi @@ -22,6 +22,7 @@ next-level-cache = <&L2>; qcom,acc = <&acc0>; qcom,saw = <&saw0>; + cpu-idle-states = <&CPU_STBY &CPU_SPC>; }; cpu@1 { @@ -32,6 +33,7 @@ next-level-cache = <&L2>; qcom,acc = <&acc1>; qcom,saw = <&saw1>; + cpu-idle-states = <&CPU_STBY &CPU_SPC>; }; cpu@2 { @@ -42,6 +44,7 @@ next-level-cache = <&L2>; qcom,acc = <&acc2>; qcom,saw = <&saw2>; + cpu-idle-states = <&CPU_STBY &CPU_SPC>; }; cpu@3 { @@ -52,6 +55,7 @@ next-level-cache = <&L2>; qcom,acc = <&acc3>; qcom,saw = <&saw3>; + cpu-idle-states = <&CPU_STBY &CPU_SPC>; }; L2: l2-cache { @@ -59,6 +63,22 @@ cache-level = <2>; qcom,saw = <&saw_l2>; }; + + idle-states { + CPU_STBY: standby { + compatible = "qcom,idle-state-stby", "arm,idle-state"; + entry-latency-us = <1>; + exit-latency-us = <1>; + min-residency-us = <2>; + }; + + CPU_SPC: spc { + compatible = "qcom,idle-state-spc", "arm,idle-state"; + entry-latency-us = <150>; + exit-latency-us = <200>; + min-residency-us = <2000>; + }; + }; }; cpu-pmu {