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GET /api/1.1/patches/2225217/?format=api
{ "id": 2225217, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2225217/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pwm/patch/20260420-rk3576-pwm-v4-5-421738c7bf28@collabora.com/", "project": { "id": 38, "url": "http://patchwork.ozlabs.org/api/1.1/projects/38/?format=api", "name": "Linux PWM development", "link_name": "linux-pwm", "list_id": "linux-pwm.vger.kernel.org", "list_email": "linux-pwm@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260420-rk3576-pwm-v4-5-421738c7bf28@collabora.com>", "date": "2026-04-20T13:35:23", "name": "[v4,5/5] arm64: dts: rockchip: Add cooling fan to ROCK 4D", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "45f4094731118f8be4bff80ff3bcf6c88fe9de63", "submitter": { "id": 90188, "url": "http://patchwork.ozlabs.org/api/1.1/people/90188/?format=api", "name": "Nicolas Frattaroli", "email": "nicolas.frattaroli@collabora.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pwm/patch/20260420-rk3576-pwm-v4-5-421738c7bf28@collabora.com/mbox/", "series": [ { "id": 500618, "url": "http://patchwork.ozlabs.org/api/1.1/series/500618/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pwm/list/?series=500618", "date": "2026-04-20T13:35:22", "name": "Add Rockchip RK3576 PWM Support Through MFPWM", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/500618/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2225217/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2225217/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-pwm+bounces-8648-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-pwm@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com\n header.a=rsa-sha256 header.s=zohomail header.b=InYFRTRA;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; 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mx.zohomail.com;\n\tdkim=pass header.i=collabora.com;\n\tspf=pass smtp.mailfrom=nicolas.frattaroli@collabora.com;\n\tdmarc=pass header.from=<nicolas.frattaroli@collabora.com>" ], "DKIM-Signature": "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1776692180;\n\ts=zohomail; d=collabora.com; i=nicolas.frattaroli@collabora.com;\n\th=From:From:Date:Date:Subject:Subject:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Message-Id:References:In-Reply-To:To:To:Cc:Cc:Reply-To;\n\tbh=r4cDyWh6L3sYfjSwYgHFLsyc+ptcJlt/BspUsjzlPPc=;\n\tb=InYFRTRABZr0jk73RLjturvnnXWdAaoxZkOhSjrQ97nxw5qCDCRJYBP9gmYISZvN\n\t1yl4QK0Za9yhmcsC75d/Sr1BnJR8ipXjMfyFZCOhh3motVIc+t8Ox2dBcDHEVptmG09\n\tslN7H24isRna1G+Q4IUqNca4Q1mm4eO944bbMp6g=", "From": "Nicolas Frattaroli <nicolas.frattaroli@collabora.com>", "Date": "Mon, 20 Apr 2026 15:35:23 +0200", "Subject": "[PATCH v4 5/5] arm64: dts: rockchip: Add cooling fan to ROCK 4D", "Precedence": "bulk", "X-Mailing-List": "linux-pwm@vger.kernel.org", "List-Id": "<linux-pwm.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pwm+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pwm+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260420-rk3576-pwm-v4-5-421738c7bf28@collabora.com>", "References": "<20260420-rk3576-pwm-v4-0-421738c7bf28@collabora.com>", "In-Reply-To": "<20260420-rk3576-pwm-v4-0-421738c7bf28@collabora.com>", "To": "=?utf-8?q?Uwe_Kleine-K=C3=B6nig?= <ukleinek@kernel.org>,\n Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>,\n Conor Dooley <conor+dt@kernel.org>, Heiko Stuebner <heiko@sntech.de>,\n Lee Jones <lee@kernel.org>, William Breathitt Gray <wbg@kernel.org>,\n Damon Ding <damon.ding@rock-chips.com>", "Cc": "Nicolas Frattaroli <nicolas.frattaroli@collabora.com>,\n kernel@collabora.com, Jonas Karlman <jonas@kwiboo.se>,\n Alexey Charkov <alchark@gmail.com>, linux-rockchip@lists.infradead.org,\n linux-pwm@vger.kernel.org, devicetree@vger.kernel.org,\n linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,\n linux-iio@vger.kernel.org", "X-Mailer": "b4 0.15.2" }, "content": "The ROCK 4D has a header to connect a small cooling fan. This fan is\ndriven by one of the SoC's PWM outputs driving a transistor, that in\nturn controls the fan's power.\n\nWith the introduction of PWM support, add a description of this cooling\nfan, as well as the additional trips and cooling-maps for it.\n\nSigned-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>\n---\n arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts | 50 +++++++++++++++++++++++++\n 1 file changed, 50 insertions(+)", "diff": "diff --git a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts\nindex 899a84b1fbf9..2d5ede010ad0 100644\n--- a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts\n+++ b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts\n@@ -45,6 +45,14 @@ rfkill {\n \t\tshutdown-gpios = <&gpio2 RK_PD1 GPIO_ACTIVE_HIGH>;\n \t};\n \n+\tfan: pwm-fan {\n+\t\tcompatible = \"pwm-fan\";\n+\t\tcooling-levels = <0 180 205 230 255>;\n+\t\tfan-supply = <&vcc_5v0_sys>;\n+\t\tpwms = <&pwm2_8ch_5 0 60000 0>;\n+\t\t#cooling-cells = <2>;\n+\t};\n+\n \tleds: leds {\n \t\tcompatible = \"gpio-leds\";\n \t\tpinctrl-names = \"default\";\n@@ -711,6 +719,36 @@ rgmii_phy0: ethernet-phy@1 {\n \t};\n };\n \n+&package_thermal {\n+\tpolling-delay = <100>;\n+\n+\ttrips {\n+\t\tpackage_fan0: package-fan0 {\n+\t\t\ttemperature = <50000>;\n+\t\t\thysteresis = <2000>;\n+\t\t\ttype = \"active\";\n+\t\t};\n+\n+\t\tpackage_fan1: package-fan1 {\n+\t\t\ttemperature = <60000>;\n+\t\t\thysteresis = <2000>;\n+\t\t\ttype = \"active\";\n+\t\t};\n+\t};\n+\n+\tcooling-maps {\n+\t\tmap1 {\n+\t\t\ttrip = <&package_fan0>;\n+\t\t\tcooling-device = <&fan THERMAL_NO_LIMIT 1>;\n+\t\t};\n+\n+\t\tmap2 {\n+\t\t\ttrip = <&package_fan1>;\n+\t\t\tcooling-device = <&fan 2 THERMAL_NO_LIMIT>;\n+\t\t};\n+\t};\n+};\n+\n &pcie0 {\n \tpinctrl-names = \"default\";\n \tpinctrl-0 = <&pcie_reset>;\n@@ -720,6 +758,13 @@ &pcie0 {\n };\n \n &pinctrl {\n+\tfan {\n+\t\tfan_pwm: fan-pwm {\n+\t\t\trockchip,pins =\n+\t\t\t\t<4 RK_PC5 14 &pcfg_pull_down_drv_level_5>;\n+\t\t};\n+\t};\n+\n \thym8563 {\n \t\thym8563_int: hym8563-int {\n \t\t\trockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;\n@@ -770,6 +815,11 @@ wifi_en_h: wifi-en-h {\n \t};\n };\n \n+&pwm2_8ch_5 {\n+\tpinctrl-0 = <&fan_pwm>;\n+\tstatus = \"okay\";\n+};\n+\n &sai6 {\n \tstatus = \"okay\";\n };\n", "prefixes": [ "v4", "5/5" ] }