From patchwork Fri Mar 14 17:14:51 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabrice Gasnier X-Patchwork-Id: 14017263 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 5AD9BC282EC for ; Fri, 14 Mar 2025 17:38:30 +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:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=2wY6Dic8hzBm+S2wld/DgwBFhKKy9RZVyTbW8u8LUKQ=; b=kxdG0zPq3Mn5b17WspaOQ0yB6w SPUTrI+eyWSzZobfeZZG+l7mbyCau/Suzm2YJRgiYNaBCIjZxsVuLwbtMu15RU1xFRaNR/tFA6tfa Td1Zpx9Dy5k70cDRhBH/v5XcN2sRYACehn2qJDb31AK2m91lKRShPjVZprcTf4039askhL5I6wT1E 41dgyzSUz0MaZiI8/+A01VgaYcz7qG1Q3O3NLnL7bhP9/XKBOHgxCniN4UAzOKZkVX0u3oGaiqKGe VIu8j0EHX3Kyqtu6ff5NPo1TKZkg7xlDrwiBTd3L5oi1WMLfeyqlxzsa183clmYbXy/9C8Kuqc4oB ObXeC5/w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tt8zE-0000000Eu6P-02cf; Fri, 14 Mar 2025 17:38:20 +0000 Received: from mx08-00178001.pphosted.com ([91.207.212.93]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tt8vY-0000000Et49-2Iuh for linux-arm-kernel@lists.infradead.org; Fri, 14 Mar 2025 17:34:34 +0000 Received: from pps.filterd (m0369457.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 52EDke2E027886; Fri, 14 Mar 2025 18:34:18 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=selector1; bh= 2wY6Dic8hzBm+S2wld/DgwBFhKKy9RZVyTbW8u8LUKQ=; b=NLZzZFNaTFhpYia3 zIwTPaiqdlnOWgVcyZy3qcYBc67FCn06QIA17ArpYzlM2L1MzzEvTNc11CHR0h+J jqulFlQrQHBtyr4x3Dh0F6kwQEB9jzGl6IaUUCH+f9v+aV1TzH5tbW9qlvGGl6YK vNwqMrwbNd0XtEumsk0FTKzAe0++dQPAovXFEkXE8cXCyInoQt4F2DvROPn3WiLx VAuKU7VkJmf+X0y0uLFjHE90vUc8fGrKnxldW8sGsdG9mSgay0UdrrdStUQjIyT4 +pMqIYoK25ifbheX4Ky2R1BLW3E+Dp4m6N9YjqvpdDmj0OvRj5fxH501tZw5wVvV PcqPHw== Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 45au3p6xct-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 14 Mar 2025 18:34:18 +0100 (CET) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id 458FA40064; Fri, 14 Mar 2025 18:33:01 +0100 (CET) Received: from Webmail-eu.st.com (eqndag1node4.st.com [10.75.129.133]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 8BDE96DB61A; Fri, 14 Mar 2025 18:15:10 +0100 (CET) Received: from SAFDAG1NODE1.st.com (10.75.90.17) by EQNDAG1NODE4.st.com (10.75.129.133) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Fri, 14 Mar 2025 18:15:10 +0100 Received: from localhost (10.252.1.141) by SAFDAG1NODE1.st.com (10.75.90.17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Fri, 14 Mar 2025 18:15:10 +0100 From: Fabrice Gasnier To: , , , , , , , CC: , , , , , , , , , , , Subject: [PATCH v4 8/8] arm64: dts: st: use lptimer3 as tick broadcast source on stm32mp257f-ev1 Date: Fri, 14 Mar 2025 18:14:51 +0100 Message-ID: <20250314171451.3497789-9-fabrice.gasnier@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250314171451.3497789-1-fabrice.gasnier@foss.st.com> References: <20250314171451.3497789-1-fabrice.gasnier@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.252.1.141] X-ClientProxiedBy: EQNCAS1NODE3.st.com (10.75.129.80) To SAFDAG1NODE1.st.com (10.75.90.17) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1093,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-03-14_06,2025-03-14_01,2024-11-22_01 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250314_103433_046049_0F1A04B6 X-CRM114-Status: GOOD ( 10.17 ) 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 During the low power modes the generic ARM timer is deactivated, so the the tick broadcast is used, based on LPTIMER3 which is clocked by LSE on STMicroelectronics boards. Signed-off-by: Patrick Delaunay Signed-off-by: Fabrice Gasnier --- arch/arm64/boot/dts/st/stm32mp257f-ev1.dts | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts index 1b88485a62a1..242115863ab4 100644 --- a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts +++ b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts @@ -190,6 +190,14 @@ &i2c8 { status = "disabled"; }; +/* use LPTIMER with tick broadcast for suspend mode */ +&lptimer3 { + status = "okay"; + timer { + status = "okay"; + }; +}; + &rtc { status = "okay"; };