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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AB4BEC433F5 for ; Wed, 10 Nov 2021 08:40:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8DAC3611C0 for ; Wed, 10 Nov 2021 08:40:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230428AbhKJIng (ORCPT ); Wed, 10 Nov 2021 03:43:36 -0500 Received: from mo4-p01-ob.smtp.rzone.de ([81.169.146.166]:18688 "EHLO mo4-p01-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230340AbhKJIne (ORCPT ); Wed, 10 Nov 2021 03:43:34 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1636533623; s=strato-dkim-0002; d=gerhold.net; h=In-Reply-To:References:Message-ID:Subject:Cc:To:From:Date:Cc:Date: From:Subject:Sender; bh=EoxcSaG1zS8onhMLinZTy9RSATOglCLjfc+GAPA1hs4=; b=QsEw7VZu85INtby5O1t1mYNCFSg21OBHBj7ipeYdOBesZ5OdeloR3chtnr/TgorEtu RZdP8SOTcvmcPsajfcaFu3ucQOs2bizqOWV6OreIaLMh9wSFjWB8aJL5A3jZv+Hkabcg 92uhU+tXBgn2TGR3BlDGAzkaMFrh+DE9qx1WgBQVj2s3rOBufkCX6uuMUCPYT/Fk+iT/ C6BLJnDRNboNkLAdVJqszS/7ccs6LOFiDVL/BIt+ZEzfiZQX4ncUh4/IWnzda52kjqhn vpT0bTgTo+sxB4vXpak56IsfrjoSWxGyvdbRR8qV334zY6P53Jf6hG767bVZhy2TIti3 vNgg== Authentication-Results: strato.com; dkim=none X-RZG-AUTH: ":P3gBZUipdd93FF5ZZvYFPugejmSTVR2nRPhVOQ/OcYgojyw4j34+u267FZF9PwpcNKLVrK8+86Y=" X-RZG-CLASS-ID: mo00 Received: from gerhold.net by smtp.strato.de (RZmta 47.34.5 AUTH) with ESMTPSA id j05669xAA8eM2gU (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits)) (Client did not present a certificate); Wed, 10 Nov 2021 09:40:22 +0100 (CET) Date: Wed, 10 Nov 2021 09:40:16 +0100 From: Stephan Gerhold To: Sasha Levin Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, Bjorn Andersson , robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, catalin.marinas@arm.com, will.deacon@arm.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH AUTOSEL 5.15 73/82] arm64: dts: qcom: msm8916: Add CPU ACC and SAW/SPM Message-ID: References: <20211109221641.1233217-1-sashal@kernel.org> <20211109221641.1233217-73-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211109221641.1233217-73-sashal@kernel.org> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi Sasha, On Tue, Nov 09, 2021 at 05:16:31PM -0500, Sasha Levin wrote: > From: Stephan Gerhold > > [ Upstream commit a22f9a766e1dc61f8f6ee2edfe83d4d23d78e059 ] > > Add the device tree nodes necessary for SMP bring-up and cpuidle > without PSCI on ARM32. The hardware is typically controlled by the > PSCI implementation in the TrustZone firmware and is therefore marked > as status = "reserved" by default (from the device tree specification): > > "Indicates that the device is operational, but should not be used. > Typically this is used for devices that are controlled by another > software component, such as platform firmware." > > Since this is part of the MSM8916 SoC it should be added to msm8916.dtsi > but in practice these nodes should only get enabled via an extra include > on ARM32. > > This is necessary for some devices with signed firmware which is missing > both ARM64 and PSCI support and can therefore only boot ARM32 kernels. > > Signed-off-by: Stephan Gerhold > Signed-off-by: Bjorn Andersson > Link: https://lore.kernel.org/r/20211004204955.21077-13-stephan@gerhold.net > Signed-off-by: Sasha Levin > This patch is not useful without other changes that landed in 5.16 (in particular, the new device actually making use of these nodes). Can you drop this patch? Thanks, Stephan