From patchwork Fri Dec 11 16:47:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne X-Patchwork-Id: 11968653 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=-16.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 3DBE6C4361B for ; Fri, 11 Dec 2020 16:50:58 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CBAD52310E for ; Fri, 11 Dec 2020 16:50:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CBAD52310E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=2/n3djzgJkW2tXGLm0OhfUct8+6/tn1JVZBywHO9LHA=; b=cXXyXzRAfqzlYW+VQai/T79wL d2dpKusicRaQ0Z4wohj5jj4LABIXdBJsF+Jk4Ow/KVwZZ5tTCeqIr8sRmd1cfT9QkOsGfTxXL6kbd TOPvoPgviKXFjw7W9hIbWFQ3721/XpF3kOtTlP02qRuXpBB4kuCJCdx89NVFMyV2YZtQAN3rrgLjS wk4GlxCq3EgfStNge2DPMTxToGoHdiAmfG6dGVZXJ8mo37s2O9rbLMDrHSWZyxf4ekb4uZnxtMwOT WdHn2Avq7VzH0T3QRwP1Y5p8ZfWAYnVZKipzhODCwkMl/pSBBEqahejttNRLhz/wwAugJfjsO2N21 JxfyDjETw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1knlbk-0000TI-KG; Fri, 11 Dec 2020 16:49:28 +0000 Received: from mx2.suse.de ([195.135.220.15]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1knlaf-0008Re-M9; Fri, 11 Dec 2020 16:48:29 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id A4C10B283; Fri, 11 Dec 2020 16:48:20 +0000 (UTC) From: Nicolas Saenz Julienne To: u.kleine-koenig@pengutronix.de, linux-kernel@vger.kernel.org, Rob Herring , Nicolas Saenz Julienne Subject: [PATCH v6 10/11] DO NOT MERGE: ARM: dts: Add RPi's official PoE hat support Date: Fri, 11 Dec 2020 17:47:59 +0100 Message-Id: <20201211164801.7838-11-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201211164801.7838-1-nsaenzjulienne@suse.de> References: <20201211164801.7838-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201211_114821_903837_DE3916C1 X-CRM114-Status: GOOD ( 13.60 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devel@driverdev.osuosl.org, linux-pwm@vger.kernel.org, f.fainelli@gmail.com, devicetree@vger.kernel.org, sboyd@kernel.org, gregkh@linuxfoundation.org, linus.walleij@linaro.org, dmitry.torokhov@gmail.com, linux-gpio@vger.kernel.org, andy.shevchenko@gmail.com, bcm-kernel-feedback-list@broadcom.com, wahrenst@gmx.net, p.zabel@pengutronix.de, linux-input@vger.kernel.org, bgolaszewski@baylibre.com, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This is an example on how to enable the fan on top of RPi's official PoE hat. Signed-off-by: Nicolas Saenz Julienne --- arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 54 +++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts index 403bacf986eb..9ae44620c5b8 100644 --- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts +++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts @@ -5,6 +5,7 @@ #include "bcm283x-rpi-usb-peripheral.dtsi" #include +#include / { compatible = "raspberrypi,4-model-b", "brcm,bcm2711"; @@ -68,6 +69,54 @@ sd_vcc_reg: sd_vcc_reg { enable-active-high; gpio = <&expgpio 6 GPIO_ACTIVE_HIGH>; }; + + fan: pwm-fan { + compatible = "pwm-fan"; + cooling-levels = <0 50 150 255>; + #cooling-cells = <2>; + pwms = <&fwpwm RASPBERRYPI_FIRMWARE_PWM_POE 80000>; + }; + + thermal-zones { + cpu_thermal: cpu-thermal { + trips { + threshold: trip-point@0 { + temperature = <45000>; + hysteresis = <5000>; + type = "active"; + }; + + target: trip-point@1 { + temperature = <50000>; + hysteresis = <2000>; + type = "active"; + }; + + cpu_hot: cpu_hot@0 { + temperature = <55000>; + hysteresis = <2000>; + type = "active"; + }; + }; + + cooling-maps { + map0 { + trip = <&threshold>; + cooling-device = <&fan 0 1>; + }; + + map1 { + trip = <&target>; + cooling-device = <&fan 1 2>; + }; + + map2 { + trip = <&cpu_hot>; + cooling-device = <&fan 2 3>; + }; + }; + }; + }; }; &ddc0 { @@ -103,6 +152,11 @@ reset: reset { compatible = "raspberrypi,firmware-reset"; #reset-cells = <1>; }; + + fwpwm: pwm { + compatible = "raspberrypi,firmware-poe-pwm"; + #pwm-cells = <2>; + }; }; &gpio {