From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5B9981B960 for ; Wed, 6 Aug 2025 18:03:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754503415; cv=none; b=GevF//TZ8D28inxWVU/JMF9eDJW+KdY3Ic4StgNfx6+ytByh89RhOlTItA6sSG6ZWgwp8Ltbhy1wmTw3+eoEjetvXkRXBayhdxQMn5RdR4nhZjyX8JOFI27mkiKlPyxM/9jqWOFwvM9Xp7SLd9eyjdxcWdTS7ojmhoeJaIyBptQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754503415; c=relaxed/simple; bh=yWAL40Ngk9Uq4evHNsGp6DdrhnP+usHRaSodRtHKO/U=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=mioeQdPMJedD02AOPBl/wXflL27lEk676sEdF4rBf8LJvoSeyt6KGeUP33vCFhqN2+JdY9skdv7Cd/hvWb7hQEO2s4YWaGMEwbgy8Oa0o22gfHD1ftx2Y33zqUdx05i/jH7TBBQu+ophq77sFsrPKxwMwY4ywXffqi2NLe1DE+U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com 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 2BAF8176C; Wed, 6 Aug 2025 11:03:24 -0700 (PDT) Received: from [10.1.197.43] (eglon.cambridge.arm.com [10.1.197.43]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 4651D3F738; Wed, 6 Aug 2025 11:03:18 -0700 (PDT) Message-ID: <514df895-e9bc-4855-b18d-29b1949f67cf@arm.com> Date: Wed, 6 Aug 2025 19:03:13 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH 12/36] platform: arm64: Move ec devices to an ec subdirectory To: Jonathan Cameron Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Rob Herring , Ben Horgan , Rohit Mathew , Shanker Donthineni , Zeng Heng , Lecopzer Chen , Carl Worth , shameerali.kolothum.thodi@huawei.com, D Scott Phillips OS , lcherian@marvell.com, bobo.shaobowang@huawei.com, tan.shaopeng@fujitsu.com, baolin.wang@linux.alibaba.com, Jamie Iles , Xin Hao , peternewman@google.com, dfustini@baylibre.com, amitsinght@marvell.com, David Hildenbrand , Rex Nie , Dave Martin , Koba Ko References: <20250711183648.30766-1-james.morse@arm.com> <20250711183648.30766-13-james.morse@arm.com> <20250721173202.00002b51@huawei.com> Content-Language: en-GB From: James Morse In-Reply-To: <20250721173202.00002b51@huawei.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi Jonathan, On 21/07/2025 17:32, Jonathan Cameron wrote: > On Fri, 11 Jul 2025 18:36:24 +0000 > James Morse wrote: > >> commit 363c8aea257 "platform: Add ARM64 platform directory" added a >> subdirectory for arm64 platform devices, but claims that all such >> devices must be 'EC like'. >> >> The arm64 MPAM driver manages an MMIO interface that appears in memory >> controllers, caches, IOMMU and connection points on the interconnect. >> It doesn't fit into any existing subsystem. >> >> It would be convenient to use this subdirectory for drivers for other >> arm64 platform devices which aren't closely coupled to the architecture >> code and don't fit into any existing subsystem. >> >> Move the existing code and maintainer entries to be under >> drivers/platform/arm64/ec. The MPAM driver will be added under >> drivers/platform/arm64/mpam. >> diff --git a/MAINTAINERS b/MAINTAINERS >> index 4bac4ea21b64..bea01d413666 100644 >> --- a/MAINTAINERS >> +++ b/MAINTAINERS >> @@ -3549,15 +3549,15 @@ S: Maintained >> F: arch/arm64/boot/Makefile >> F: scripts/make_fit.py >> >> -ARM64 PLATFORM DRIVERS >> -M: Hans de Goede >> +ARM64 EC PLATFORM DRIVERS >> +M: Hans de Goede > > Smells like a rebase error as Hans' email address chagned > to the kernel.org one in the 6.16 cycle. Bother - yes, that's exactly what happened. >> M: Ilpo Järvinen >> R: Bryan O'Donoghue >> L: platform-driver-x86@vger.kernel.org >> S: Maintained >> Q: https://patchwork.kernel.org/project/platform-driver-x86/list/ >> T: git git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git >> -F: drivers/platform/arm64/ >> +F: drivers/platform/arm64/ec > Other than that looks sensible to me but obviously needs tags from Hans or Ilpo. Thanks, James