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 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 232F4C43458 for ; Tue, 30 Jun 2026 09:38:54 +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-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:To:From:Reply-To:Cc:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Fg59YlgixvhQ1/Hu4yXDzmqWGTVz2N+wqX6s3JwVuIE=; b=UqvZGCVuZPC2elX65rRnNe9XqK Cfy0CDBi695PWRlig4v/ZvK49fO4S3y3q1l+sTWbhxiW5M3M+Shl0gFPoePL4g0nHg4QWFPnPBvRU M93WhrtQrDnpMh3gF36oLbhXmud9kpXAUQgALCCvie2sW/QUFWpXZ2n574x/vm1GoTKDv1xAGBbsN r4If93ju6TvGm0PsO0QDXMfYtqwZT4eepBKZdlmap1eSMR9zaihVCURJRyevBC8W5cJ8yabWfcMZK dLSXICMO08wLLMQ7GvOYvA4weibtm9pIp59ijOfqeSPt7YaN6v/1iYHI7rM538UXE16K9/T4v49xz 5k5TpAkQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1weUvU-0000000GTRV-1j00; Tue, 30 Jun 2026 09:38:44 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1weUvP-0000000GTNY-3kDU for linux-arm-kernel@lists.infradead.org; Tue, 30 Jun 2026 09:38:42 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1782812319; x=1814348319; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=5xYA55UOhzIXToSE5GZpeE9CT0EHf953ZhVrNg1L6YA=; b=nggM+Frq6VlAtxRv+Fc+sRaOw0dhxN+tXpyJUCarwbUNI5ytrPFHFsFp xGRsLab0A6DgzN81nG2IvLdoUAvoZ6WhMRx5cGymOy/YRs0OFKgvQhRdV Uch1pfCyTLAvzAWWc1HiKTEFzmeEoRddf1wlnDAU8ZLUuKj4snHTAZ9v3 inW6NUtlbzgPbu2H/akaUsCGoqaRFdE6yWmCm+yE0uy2Yc43M9RyGy+EJ iQnAxvmU7YUruOrlh4u+wg/7lf7xvK7GNaOP/W/IX20DvO5gRD5tEsb3X oQHvE4tcCBYE/nrPQBPLRvR2tJVckJfZGZu0V40MjE9oxDWFY0QBcmKrn g==; X-CSE-ConnectionGUID: SUqO/kxASaKWBXK1VeZsfw== X-CSE-MsgGUID: Bg9g48AeTziF9k/8sH2P2A== X-IronPort-AV: E=Sophos;i="6.24,233,1774335600"; d="scan'208";a="227053760" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa6.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jun 2026 02:38:39 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.87.72) by chn-vm-ex4.mchp-main.com (10.10.87.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.2562.43; Tue, 30 Jun 2026 02:38:38 -0700 Received: from che-ll-i67070.microchip.com (10.10.85.11) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2507.58 via Frontend Transport; Tue, 30 Jun 2026 02:38:30 -0700 From: Varshini Rajendran To: , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v3 13/13] ARM: dts: microchip: sama7d65: add thermal zones node Date: Tue, 30 Jun 2026 15:06:03 +0530 Message-ID: <20260630093603.38663-14-varshini.rajendran@microchip.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260630093603.38663-1-varshini.rajendran@microchip.com> References: <20260630093603.38663-1-varshini.rajendran@microchip.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260630_023840_017582_B72A03E0 X-CRM114-Status: GOOD ( 11.16 ) 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 Add thermal zones node with its associated trips and cooling-maps. It uses CPUFreq as cooling device for temperatures in the interval [90, 100) degrees Celsius and describe the temperature of 100 degrees Celsius as critical temperature. System will shut down when reaching critical temperature. Signed-off-by: Varshini Rajendran --- arch/arm/boot/dts/microchip/sama7d65.dtsi | 42 +++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/arch/arm/boot/dts/microchip/sama7d65.dtsi b/arch/arm/boot/dts/microchip/sama7d65.dtsi index 89904397d021..f2140010d337 100644 --- a/arch/arm/boot/dts/microchip/sama7d65.dtsi +++ b/arch/arm/boot/dts/microchip/sama7d65.dtsi @@ -16,6 +16,7 @@ #include #include #include +#include / { model = "Microchip SAMA7D65 family SoC"; @@ -38,6 +39,7 @@ cpu0: cpu@0 { i-cache-size = <0x8000>; // L1, 32 KB next-level-cache = <&L2>; operating-points-v2 = <&cpu_opp_table>; + #cooling-cells = <2>; /* min followed by max */ L2: l2-cache { compatible = "cache"; @@ -127,6 +129,46 @@ thermal_sensor: thermal-sensor { io-channel-names = "sensor-channel"; }; + thermal-zones { + cpu_thermal: cpu-thermal { + polling-delay-passive = <1000>; + polling-delay = <5000>; + thermal-sensors = <&thermal_sensor>; + + trips { + cpu_normal: cpu-alert0 { + temperature = <90000>; + hysteresis = <0>; + type = "passive"; + }; + + cpu_hot: cpu-alert1 { + temperature = <95000>; + hysteresis = <0>; + type = "passive"; + }; + + cpu_critical: cpu-critical { + temperature = <100000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + map0 { + trip = <&cpu_normal>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + + map1 { + trip = <&cpu_hot>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + }; + }; + soc { compatible = "simple-bus"; ranges; -- 2.34.1