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 3954FFF8860 for ; Mon, 27 Apr 2026 13:44:39 +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: Content-Type: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=JkHp6xKRAW/MZYyZ7lFeEZ7wQ6ocTjVxF4mQwSs/vCI=; b=ZYYvubagFuQOxYTZyYjRnZFpvV ciIoM+agfusrbpAWaWJDhYBnjFSY807Jf29bYoIKLUBV3JcGFN+S5Y9H6wLAnf14aKHDSBgR/BvFN 9VvFJ1b2/9RMQpOMsDcS01d2BgsSpKQY5h8n25vug2P8qW+C94BTKqL4MM4kLFxV4dT+RrGleKfUm H0sjrVt2xC9okXb3EJc7dQ2LTimcA6o/5W6gEOmMr69lavdyj3SzhZF/5wU7lju0rNePXCGtxVOWf /4tCJo1hZE71FvfxiWYIvxBLPF7sQAj2sfJDW9rVIgAapmS+AMp7D4m4DoCSloVXl+wni7CfWpzWt 2yYR1Hsg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wHMGH-0000000H1Le-010S; Mon, 27 Apr 2026 13:44:33 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wHMGE-0000000H1LK-1xDV for linux-arm-kernel@lists.infradead.org; Mon, 27 Apr 2026 13:44:31 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0EA1A1684; Mon, 27 Apr 2026 06:44:23 -0700 (PDT) Received: from gaia.lan (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 110773F763; Mon, 27 Apr 2026 06:44:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1777297468; bh=Px/W/Ya2SR7lP2+gVdyjKWhgWqDhPeYV/Ic2w6HMEeQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ACj7EZ6xUTVoXpW8tnBi3R3snDJlEy+3KZmtG/9Wl9R+21vW7Uw0AZHFgRINaOlCM 7DsKo5KWBHKjcDPED2EljkY/Vjt1iJRtmC4/V/Ov1Ee0KI3tSqvTrZTNKNv42KYi/y CyOHEaCImUHAGG31urirAnZnsSCzfATmJBzTGlNQ= From: Catalin Marinas To: Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , Will Deacon , "Rafael J. Wysocki" , Len Brown , Huisong Li , Breno Leitao Cc: "Rafael J. Wysocki" , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, pjaroszynski@nvidia.com, rmikey@meta.com, kernel-team@meta.com, stable@vger.kernel.org Subject: Re: [PATCH] ACPI: arm64: cpuidle: Tolerate platforms with no deep PSCI idle states Date: Mon, 27 Apr 2026 14:44:21 +0100 Message-ID: <177729716542.3579760.5742318124586748645.b4-ty@arm.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260420-ffh-v1-1-6b4c10fec442@debian.org> References: <20260420-ffh-v1-1-6b4c10fec442@debian.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260427_064430_632763_BF57DF94 X-CRM114-Status: UNSURE ( 7.05 ) X-CRM114-Notice: Please train this message. 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 On Mon, 20 Apr 2026 02:27:13 -0700, Breno Leitao wrote: > Commit cac173bea57d ("ACPI: processor: idle: Rework the handling of > acpi_processor_ffh_lpi_probe()") moved the acpi_processor_ffh_lpi_probe() > call from acpi_processor_setup_cpuidle_dev(), where its return value was > ignored, to acpi_processor_get_power_info(), where it is now treated as > a hard failure. As a result, platforms where psci_acpi_cpu_init_idle() > returned -ENODEV stopped registering any cpuidle states, forcing CPUs to > busy-poll when idle. > > [...] Applied to arm64 (for-next/fixes), thanks! [1/1] ACPI: arm64: cpuidle: Tolerate platforms with no deep PSCI idle states https://git.kernel.org/arm64/c/3ea4415015d6