From patchwork Tue May 17 01:36:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: qianfan X-Patchwork-Id: 573619 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 69545C4332F for ; Tue, 17 May 2022 01:38:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229692AbiEQBiF (ORCPT ); Mon, 16 May 2022 21:38:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54840 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236861AbiEQBiD (ORCPT ); Mon, 16 May 2022 21:38:03 -0400 Received: from m12-13.163.com (m12-13.163.com [220.181.12.13]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 28C7042EEF; Mon, 16 May 2022 18:38:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version; bh=k0ctV enGMMCdu3p7b3myrdeaZuuz8j0YlMGMike2E58=; b=FkmEWkafRVvthQnx/j2sK /7z7EOTH1BAtpoONhF8/ExSjcVQY/mdPTfcxWiXdwTGaVPA2TXD2rCJxbb7vIFV2 b9V6oW9WIU/pXuMubfKzsnRlkYmZKLerWC1VkRmBrpRL5b5/aIa73E7kqPIo4asF 5gbfMc+M596rkBjId5e0hU= Received: from DESKTOP-B1R4FVG.localdomain (unknown [218.201.129.20]) by smtp9 (Coremail) with SMTP id DcCowAB3USwR_IJiF3ohDQ--.61255S5; Tue, 17 May 2022 09:36:20 +0800 (CST) From: qianfanguijin@163.com To: linux-sunxi@lists.linux.dev Cc: Rob Herring , Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec , "Rafael J . Wysocki" , Viresh Kumar , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, qianfan Zhao Subject: [PATCH v5 3/3] ARM: dts: sun8i-r40: Add thermal trip points/cooling maps Date: Tue, 17 May 2022 09:36:07 +0800 Message-Id: <20220517013607.2252-4-qianfanguijin@163.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220517013607.2252-1-qianfanguijin@163.com> References: <20220517013607.2252-1-qianfanguijin@163.com> MIME-Version: 1.0 X-CM-TRANSID: DcCowAB3USwR_IJiF3ohDQ--.61255S5 X-Coremail-Antispam: 1Uf129KBjvJXoW7Aw4UArW7Wr4fJFW5Jw1kZrb_yoW8CF4xpF 1xCw4FqF1jgr1Sq3Wa9r4DXas8Ca4vkF48Krs7WFykAr98XFZrtry2yw1ftFyDGF1rAw40 9w4Yvr1xG3Z8A37anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07U9Aw3UUUUU= X-Originating-IP: [218.201.129.20] X-CM-SenderInfo: htld0w5dqj3xxmlqqiywtou0bp/1tbiGhUE7VaEBpyRLgAAsR Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: qianfan Zhao For the trip points, I used values from the BSP code. The critical trip point value is 30°C above the maximum recommended ambient temperature (85°C) for the SoC from the datasheet, so there's some headroom even at such a high ambient temperature. Signed-off-by: qianfan Zhao Reviewed-by: Samuel Holland Tested-by: Samuel Holland --- arch/arm/boot/dts/sun8i-r40.dtsi | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi index ae2a5ebd9924..b43f3f72a915 100644 --- a/arch/arm/boot/dts/sun8i-r40.dtsi +++ b/arch/arm/boot/dts/sun8i-r40.dtsi @@ -86,6 +86,7 @@ cpu0: cpu@0 { reg = <0>; clocks = <&ccu CLK_CPU>; clock-names = "cpu"; + #cooling-cells = <2>; }; cpu1: cpu@1 { @@ -94,6 +95,7 @@ cpu1: cpu@1 { reg = <1>; clocks = <&ccu CLK_CPU>; clock-names = "cpu"; + #cooling-cells = <2>; }; cpu2: cpu@2 { @@ -102,6 +104,7 @@ cpu2: cpu@2 { reg = <2>; clocks = <&ccu CLK_CPU>; clock-names = "cpu"; + #cooling-cells = <2>; }; cpu3: cpu@3 { @@ -110,6 +113,7 @@ cpu3: cpu@3 { reg = <3>; clocks = <&ccu CLK_CPU>; clock-names = "cpu"; + #cooling-cells = <2>; }; }; @@ -125,6 +129,30 @@ cpu_thermal: cpu0-thermal { polling-delay-passive = <0>; polling-delay = <0>; thermal-sensors = <&ths 0>; + + trips { + cpu_hot_trip: cpu-hot { + temperature = <80000>; + hysteresis = <2000>; + type = "passive"; + }; + + cpu_very_hot_trip: cpu-very-hot { + temperature = <115000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + cpu-hot-limit { + trip = <&cpu_hot_trip>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; }; gpu_thermal: gpu-thermal {