From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 2061833985; Mon, 1 Dec 2025 08:39:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764578354; cv=none; b=NGhVfYzfDkRHIugbqGcQ7ztlInlKi9tCjBMHx4HOUa/cZ/BYGCjK/EMvPdhIYsyv1jeOslmIdEzFzDeGZJjxb3ZPA08jFRbPCsl3VHBZD0LLPH+mtHNqf/nz4GUYJwZgDpnSYHcTgNLYJexM0RdIhdV/yDVC4SOs6aJEX/EDmc0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764578354; c=relaxed/simple; bh=3sJ+H4Wmct5s2XmC9zTvhNk2LFQ225kv2to609V53pU=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=s+eVUmtZ8sQlHXQFGEgqumIwbkVgwodCOcc0DX4v966jLP8yO1HkHb2Wj4G5F3aX+Hu8WsVGYrJDMLqt+//RlyGOSxoyY694XxEHRAHvAIkjC2ilMVG+fTg8jWD/KwpII5SEEyPrXoVC7Auv5/rCpN847S5NVugDNiIcMmpcTrQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=u2RXyHtQ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="u2RXyHtQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BDF93C4CEF1; Mon, 1 Dec 2025 08:39:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764578354; bh=3sJ+H4Wmct5s2XmC9zTvhNk2LFQ225kv2to609V53pU=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=u2RXyHtQ5gzPP7NpNFfQw8hjmV+VSWf9bwRv0qU+NVi6rVI2huxuObUP3735wEa6Z ldcePP8CtP3UYRFy4C1UfpbIL2JtozGsdnIblVxndqZEei1ByAsAADPAamQM44RIcY EWd3bRR7qnY5YWnXw0Zd+RxXwXGenyNJeus/UO0KMnc763WNZZN4nhvxs8RmEZ1i6L tKWredBawcHG2b0uyCIItZyI+xbYZjP2HvB/EdyVK6ZTKio0CqIJOZxfNUoA9I8L+e KpUA3S37RQ5Civ8ynneNqZcF8xTMoz+43cH4WY3EtNep5XFMvAqNoqVv2CA68m9iCC a34XhHmbcP4iw== Message-ID: <491560f1-ee50-43ef-b258-adb5859cb05a@kernel.org> Date: Mon, 1 Dec 2025 09:39:09 +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: [PATCH v2 1/2] dt-bindings: iommu: rockchip: Add support for multiple interface clocks To: Chaoyi Chen , Chaoyi Chen , Joerg Roedel , Will Deacon , Robin Murphy , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner Cc: iommu@lists.linux.dev, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org References: <20251128071322.92-1-kernel@airkyi.com> <20251128071322.92-2-kernel@airkyi.com> <96958186-0e46-4606-ae36-239112eb31ea@kernel.org> <98a847f7-0880-4e5b-a946-26dc81fde5d2@rock-chips.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 01/12/2025 09:10, Chaoyi Chen wrote: >>> + - if: >>> + properties: >>> + compatible: >>> + items: >>> + - const: rockchip,iommu >>> + - const: rockchip,rk3568-iommu >>> + then: >>> + properties: >>> + clocks: >>> + maxItems: 2 >> >> Why this is unspecific now? Please look at other examples how it is >> done, e.g. Samsung clocks. > > I looked at some examples. Maybe it need to set both minItems and > maxItems here? I'm not sure I understood your point. Individual items were described before. Now they are not, so first item can be anything. You need to define the list. If the devices have completely different clocks, then you would go with Samsung approach. But devices should not have completely different clocks, so you should define common parts in top-level and just narrow number of items here. maxItems is enough in such case. Best regards, Krzysztof