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=-8.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 7E6C7C43387 for ; Fri, 18 Jan 2019 10:48:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 50369204EC for ; Fri, 18 Jan 2019 10:48:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=fpond.eu header.i=@fpond.eu header.b="KkYCQdQ3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726801AbfARKse (ORCPT ); Fri, 18 Jan 2019 05:48:34 -0500 Received: from mo4-p02-ob.smtp.rzone.de ([81.169.146.171]:25640 "EHLO mo4-p02-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726741AbfARKsd (ORCPT ); Fri, 18 Jan 2019 05:48:33 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1547808512; s=strato-dkim-0002; d=fpond.eu; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=Cmc9Alv1HrDQBn2VDq5e/VAI79by0Paip2fgBN5DS1I=; b=KkYCQdQ3vLNAhTzOckWrwQLAREmwCfiuX8uyjDtfnhhTBStf4oFcgJLbZ34bQEYnVc +tkZrKlWM5bXDEv3jPKYIwZqERwweOuKu2MnJ0p6qZMwGhZqLegBQfTf6wguTSFOiFF0 SDD8uKn0jBOpT768lQNTtyxR+M+yUrlBZLirDBD65KPaDIorI20qA82YJT+rwbjYCWMY /pAgYjcJfdUy/WVoqcyAE6q2hXeXztU86q4Mi8FMX988mnc00f+GEj0QDIU+Zcsk5T6g v+wWeo7vSlDDfaGHQptuVLyzZYuPqOuP+lcmj0fW8LRhn/B7GpSkH3AYeFaqFprGaK3K LORw== X-RZG-AUTH: ":OWANVUa4dPFUgKR/3dpvnYP0Np73dmm4I5W0/AvA67Ot4fvR8GZZd0rmoQ==" X-RZG-CLASS-ID: mo00 Received: from groucho.site by smtp.strato.de (RZmta 44.9 DYNA|AUTH) with ESMTPSA id V028b8v0IAm9nyE (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA (curve secp521r1 with 521 ECDH bits, eq. 15360 bits RSA)) (Client did not present a certificate); Fri, 18 Jan 2019 11:48:09 +0100 (CET) From: Ulrich Hecht To: linux-renesas-soc@vger.kernel.org Cc: horms@verge.net.au, geert@linux-m68k.org, khiem.nguyen.xt@renesas.com, dien.pham.ry@renesas.com, takeshi.kihara.df@renesas.com, Khiem Nguyen , Ulrich Hecht Subject: [PATCH v2 3/5] arm64: dts: r8a7796: Add cpuidle support for CA57 cores Date: Fri, 18 Jan 2019 11:47:52 +0100 Message-Id: <1547808474-19427-4-git-send-email-uli+renesas@fpond.eu> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1547808474-19427-1-git-send-email-uli+renesas@fpond.eu> References: <1547808474-19427-1-git-send-email-uli+renesas@fpond.eu> Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org From: Khiem Nguyen Enable cpuidle (core shutdown) support for R-Car M3-W CA57 cores. Parameters were found after evaluation by gaku.inami.xw@bp.renesas.com; they help to keep the performance and reduce the power consumption. Signed-off-by: Khiem Nguyen Signed-off-by: Takeshi Kihara [dien.pham.ry: Apply new cpuidle parameters] Signed-off-by: Dien Pham Signed-off-by: Ulrich Hecht --- arch/arm64/boot/dts/renesas/r8a7796.dtsi | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi b/arch/arm64/boot/dts/renesas/r8a7796.dtsi index 3a9f8c7..212ffd6 100644 --- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi @@ -160,6 +160,7 @@ power-domains = <&sysc R8A7796_PD_CA57_CPU0>; next-level-cache = <&L2_CA57>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; clocks = <&cpg CPG_CORE R8A7796_CLK_Z>; operating-points-v2 = <&cluster0_opp>; capacity-dmips-mhz = <1024>; @@ -173,6 +174,7 @@ power-domains = <&sysc R8A7796_PD_CA57_CPU1>; next-level-cache = <&L2_CA57>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; clocks = <&cpg CPG_CORE R8A7796_CLK_Z>; operating-points-v2 = <&cluster0_opp>; capacity-dmips-mhz = <1024>; @@ -240,6 +242,19 @@ cache-unified; cache-level = <2>; }; + + idle-states { + entry-method = "psci"; + + CPU_SLEEP_0: cpu-sleep-0 { + compatible = "arm,idle-state"; + arm,psci-suspend-param = <0x0010000>; + local-timer-stop; + entry-latency-us = <400>; + exit-latency-us = <500>; + min-residency-us = <4000>; + }; + }; }; extal_clk: extal { -- 2.7.4