From patchwork Thu Nov 7 11:47:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Heiko_St=C3=BCbner?= X-Patchwork-Id: 13866314 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3B60DD43350 for ; Thu, 7 Nov 2024 12:07:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ndhE9GV/weSv1b+P8Z17HWDaizYEypq9zFWjTm9iZPo=; b=UP8Zh8EbDapool2W4ucdskUHUR lOO6vlVO4i/5dPR0EuWBzmDNFXrrlmmX4PMg+DraxX9krMniYrNsnRL6v8nTrLOLid/1090Vr3Xq/ MPguMDkkciksfjXhovb60KkRpEwa78nbIIKTd9zmjXz/3iXhODVlqdNczvArmWiYKSqPV3u5FhEBO MAAlfTzLzWiPOEGGChzXJpfnzrdOpwoRQoKWqjo0IxEaX+ZXqI5j80O6Qk9ZUpZGE2ZHEqUkDU6LK WK97MhWuDjt8/vV3nejmlMdLw4Cmy7llLBcgXFfmfmfQt9YLwmiXTsz1JsWux0PKjefh14fwu62Cb 9ojD1k/g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t91Hi-00000006rsk-3m6h; Thu, 07 Nov 2024 12:06:46 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t90zQ-00000006nl3-2tdM; Thu, 07 Nov 2024 11:47:54 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=ndhE9GV/weSv1b+P8Z17HWDaizYEypq9zFWjTm9iZPo=; b=POjBss8m/sLHoH+2OuxfvWQqsK 8FN+lz93gu8/NZcpt7+vKhLZNYTLNSxKWBT89OiNlQy5MnqzBV2ld1O+3IO/O/vbqb2m/hvEWL+3+ 3TQfzvwKUalwksU9rXJPCkkJe9So1y3HFZNsPYSPs1eyeDmtZ5V+hIHyCjLhR8EidXwnibaSY/NFe 1KMceGJ/zRT9OWQNmzCak5EmXdWoNWh9x4TNUkcciaOkk9VvA4dLHd4azapZqAYcZUUW7auU7QV+x WzBMONwGjp6AchpiCILskqyKLvFGH5VM6JTw/yTdLm41KyMBxRjaVMJXV7ooEUzDAuQwkKwazAW4E Wyc0RMzQ==; Received: from i53875b28.versanet.de ([83.135.91.40] helo=localhost.localdomain) by gloria.sntech.de with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1t90z4-0005lF-In; Thu, 07 Nov 2024 12:47:30 +0100 From: Heiko Stuebner To: lee@kernel.org, jikos@kernel.org, jic23@kernel.org Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, jdelvare@suse.com, linux@roeck-us.net, srinivas.pandruvada@linux.intel.com, bentiss@kernel.org, dmitry.torokhov@gmail.com, pavel@ucw.cz, ukleinek@debian.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-input@vger.kernel.org, linux-iio@vger.kernel.org, linux-leds@vger.kernel.org, heiko@sntech.de Subject: [PATCH v9 8/9] arm64: dts: rockchip: hook up the MCU on the QNAP TS433 Date: Thu, 7 Nov 2024 12:47:11 +0100 Message-ID: <20241107114712.538976-9-heiko@sntech.de> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241107114712.538976-1-heiko@sntech.de> References: <20241107114712.538976-1-heiko@sntech.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241107_034752_792295_1A94DF28 X-CRM114-Status: GOOD ( 15.31 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The MCU is an important part of the device functionality. It provides functionality like fan-control, more leds, etc and even more important without it, the NAS-device cannot even fully turned off. Hook up the serial device to its uart and hook into the thermal management to control the fan according to the cpu temperature. While the MCU also provides a temperature sensor for the case, this one is just polled and does not provide functionality for handling trip points in hardware, so a lot of polling would be involved. As the cpu is only cooled passively in these devices, it's temperature rising will indicate the temperature level of the system just earlier. Signed-off-by: Heiko Stuebner --- .../boot/dts/rockchip/rk3568-qnap-ts433.dts | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts b/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts index e601d9271ba8..4bc5f5691d45 100644 --- a/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts +++ b/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts @@ -483,6 +483,54 @@ rgmii_phy0: ethernet-phy@0 { }; }; +/* + * The MCU can provide system temperature too, but only by polling and of + * course also cannot set trip points. So attach to the cpu thermal-zone + * instead to control the fan. + */ +&cpu_thermal { + trips { + case_fan0: case-fan0 { + hysteresis = <2000>; + temperature = <35000>; + type = "active"; + }; + + case_fan1: case-fan1 { + hysteresis = <2000>; + temperature = <45000>; + type = "active"; + }; + + case_fan2: case-fan2 { + hysteresis = <2000>; + temperature = <65000>; + type = "active"; + }; + }; + + cooling-maps { + /* + * Always provide some air movement, due to small case + * full of harddrives. + */ + map1 { + cooling-device = <&fan THERMAL_NO_LIMIT 1>; + trip = <&case_fan0>; + }; + + map2 { + cooling-device = <&fan 2 3>; + trip = <&case_fan1>; + }; + + map3 { + cooling-device = <&fan 4 THERMAL_NO_LIMIT>; + trip = <&case_fan2>; + }; + }; +}; + &pcie30phy { data-lanes = <1 2>; status = "okay"; @@ -582,6 +630,15 @@ &tsadc { */ &uart0 { status = "okay"; + + mcu { + compatible = "qnap,ts433-mcu"; + + fan: fan-0 { + #cooling-cells = <2>; + cooling-levels = <0 64 89 128 166 204 221 238>; + }; + }; }; /*