From patchwork Wed Mar 5 09:49:35 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabrice Gasnier X-Patchwork-Id: 14002237 Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [185.132.182.106]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 95F14205510; Wed, 5 Mar 2025 09:54:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.132.182.106 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741168468; cv=none; b=V+TmFHuOtonLyIb55mvLSwxoLY7vZfTDtSRyenlqdMZonQE+uBj32bQOOaTnhqRhRtbVizCig2gFZS8RCzhlirJIE924wrtq/mi+6TBaSyLA4e35gNADhmlJlxpK7FOtBsGHiFd/8qEAR5YeJLKZC9CT233MwiFaDEYGfeE+6Nw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741168468; c=relaxed/simple; bh=0UnlsJ/QMPp3en93prvQfDrfGSRGtCvMeCyLsWlTT+o=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=KREzyw/Sa0JXc3tMNcG98S5Ii8xPzj17V+TWXWWz0QY4/LD5f/54EFxn2/lLqXp1YN4eEijrQjAy7SZSkXGU7AuzhwYZKSzXPDkQcXl5bD3zhTnICHRrCd1qhsGZ58kmP9YjV8DQJVN6jM51BBnHNyTfgD2rDt30rP4aCXNno2s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com; spf=pass smtp.mailfrom=foss.st.com; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b=dwBf4Mio; arc=none smtp.client-ip=185.132.182.106 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=foss.st.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b="dwBf4Mio" Received: from pps.filterd (m0369458.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 5258qMgM027811; Wed, 5 Mar 2025 10:53:58 +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=dwBf4Mioiwv2Zu4l INts2S2Ok7dimOSV+L0M6etY0G775n4SH5tmarEcC5Ibw+A1q1v2wRE9aep8P0U8 Z6TrdLUAkozG1VaCDf2i2oJZEXISCSwoy00CEYbXknCbM8PmuQhxy7Zm24+PNSnU B0NoKf3CcmMycPbWKNVzZLW3zm1vaxF6wDRCfyaMKBABB9a81qRTC2lk6FevvvvA oKCbfQikaOr6KtDV9LsnhmERFCU8Mtl35jnH2Zbv2fDm7AjgDU00BNRdRvNrNxAP 5foz5C4FFAsXG2YmA1pbnqmuUXjes6S0kKQOJ3IVmPCok6FFziHby5QCpMRtqFib Kw8YOg== 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 454cp8ncfg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 05 Mar 2025 10:53:58 +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 2109840092; Wed, 5 Mar 2025 10:52:50 +0100 (CET) Received: from Webmail-eu.st.com (eqndag1node6.st.com [10.75.129.135]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id DDBCC5AB282; Wed, 5 Mar 2025 10:49:57 +0100 (CET) Received: from SAFDAG1NODE1.st.com (10.75.90.17) by EQNDAG1NODE6.st.com (10.75.129.135) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Wed, 5 Mar 2025 10:49:57 +0100 Received: from localhost (10.48.86.222) 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; Wed, 5 Mar 2025 10:49:57 +0100 From: Fabrice Gasnier To: , , , , , , , , CC: , , , , , , , , , , Subject: [PATCH v3 8/8] arm64: dts: st: use lptimer3 as tick broadcast source on stm32mp257f-ev1 Date: Wed, 5 Mar 2025 10:49:35 +0100 Message-ID: <20250305094935.595667-9-fabrice.gasnier@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250305094935.595667-1-fabrice.gasnier@foss.st.com> References: <20250305094935.595667-1-fabrice.gasnier@foss.st.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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=2025-03-05_03,2025-03-05_01,2024-11-22_01 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"; };