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 2498CC61DF0 for ; Mon, 31 Aug 2026 04:09:43 +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: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Bm7huY5WQXjxwqWxfiTvH04R09OwCZF8hQZPpxtRqLo=; b=bGp6+JoF7rXXLG+Fn5+/fPjxfh pezfqz/5lmmMDfLgqsHE55pE/dY+eZG/gRgeRibWUz54v8rcL+DzJYXwwAL47158+UhfB1K/6pKqJ GEQ7R41wFBLg6DN/xm9paZwDbdVkAa2lDQUs2ZUJcYk68Tv1tw4K5OplB3WpeOS63H3FoJ89fYpA3 R3LWZNLrhrgZrduHmRWJVL/CL9q5+v5A2qQ+KQC9/toZa8vMb9FfO0bcgkD2POkNuuieufJsEedBb LOWeC426TXmWk/vQW2eVI6Xd9Wf6I9RBC8xSsHQ7X7Cc8wyvQYIskemdKnmeG7Y5oql1SRpkxqRo9 jlBWmn6A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x0tKu-00000008Rpw-1wJB; Mon, 31 Aug 2026 04:09:32 +0000 Received: from fhigh-b1-smtp.messagingengine.com ([202.12.124.152]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x0tKs-00000008RoF-2HVD; Mon, 31 Aug 2026 04:09:31 +0000 Received: from phl-compute-03.internal (phl-compute-03.internal [10.202.2.43]) by mailfhigh.stl.internal (Postfix) with ESMTP id 3BA817A0014; Mon, 31 Aug 2026 00:09:29 -0400 (EDT) Received: from phl-frontend-03 ([10.202.2.162]) by phl-compute-03.internal (MEProxy); Mon, 31 Aug 2026 00:09:29 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gahingwoo.com; h=cc:cc:content-transfer-encoding:content-type:date:date:from :from:in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:subject:subject:to:to; s=fm2; t=1788149369; x= 1788235769; bh=Bm7huY5WQXjxwqWxfiTvH04R09OwCZF8hQZPpxtRqLo=; b=C V9aWwzQygkVHgN3E5R/NRNMI/wsgHIlsJbzG7POoMKCanYM9ZkWjb/9dLFSaJLm4 CpjDsbQhH9sXc7LkM+JES5S9R+PkpUzWF8p05xzfOx9KnDGWgJrkXv+YQH9PU8ll axxRW9RIHjcRfE/DyqlnxG+OCZHQr7+unNE5r/8QvQoRgwZwWz4Qe4ZIWqDgD9q3 9iqqimeKxT35/Vvmg8gM/UjowtEQiSIMY7T3YXZlAsvRzZ6SfbFg3PQRhXQxPVxI otcial/NL+Y95Mq5Id37zzBuD20DwUE9cBJjxkPZu7vliZOmVGE6+jZJrtpChWKW INMDEokcm+VeFCNth3rSQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:date:date:feedback-id:feedback-id:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:subject:subject:to:to:x-me-proxy:x-me-sender :x-me-sender:x-sasl-enc; s=fm3; t=1788149369; x=1788235769; bh=B m7huY5WQXjxwqWxfiTvH04R09OwCZF8hQZPpxtRqLo=; b=liCac5THlTP8Ghve1 mAxgUAjJumVxYs7ROhRhUjnKiai7Ln2PSXplUjWz+QHw1QaoWhRvFxi4tUmzsPkO oc3VngIncRmSvo7BRdZkXg0ObnVNfS5bLFSH+Ne6ua4bJ7Uf6hzJzRPSE/OWhYif ndYlnbOVOB/y+k/42drQcSAFCCbDpKkuybiulnn6pGIdZc7HYFeLZsVCo3PW+2mE BIDQdL/t24tKu1gSGXMhVWZSCMg4+4d1bCYE6/ueWN28RpohPgfJFussZ0YVgn92 4DRzv0MzF9ctrcodbquGau/YoHfieh0Ritjz7S1HQPaR1hFxx0HFF7ah/qe0mXfN 1gL0A== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: dmFkZTFrmGdraA1wQ3u7fSC2szCs3dTKzi/Amki67rwemwxet7nxM0ToJ2yK8NWZy80VBj m9nFeJFSLUsMmp4v/avaroH3z5Dq6jG4k86bAf0y32LtQ7RQOAYU0EDi/Vek7cY9IfGAli KbguFiQRUm7Yej/X8Q7usb0aRYgmhdttAZZaV7gMFf/0gCkGbI0GMXhWHVbjxOciLjJdey nBHFTEwJHw6b/X1tteAoW5feajlR4udOAumKRJZOKSBxp0+HOuOhd3F7jLrJp4hskYXnWm Yfl8tng267MYxnNxKDOVFuoUTQiqdV/pQsZF1H5QJFaOThb9EnTKuskqcvPNlFdWCr/4Tu 1Kx1zm84ic3pQiOs+nUGNsjLF4KzdokkkjKlJccOli63AGG67E+EkFycjUzcmvgPyi5jWW 8FRYKtHmss6acQVGvzq2jqS7RgC/M3TiVxUw4aeN2dZszTFa4BTztUTAQx0l/kQLXsk0M8 eBruXnd6OJI5Zv6S4WyzIxMOENLVafd0/nyZBqGNwEYAWmrNtfzesdsTYjrbwgJk9mKMky 22Lb4tpIpz8yheynmenEXC/NqMQXXDiAL+lq9I3U+H7JY6rV4kA0XQn2k/srs+vqsVEp7w pVPUPhuPpvQW6vrojM8FIHnwU64sWVMZyUpJRUIxA0mrQQOjnCaVuUfkfiaA X-ME-Proxy: Feedback-ID: i7a5e4b5f:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Mon, 31 Aug 2026 00:09:21 -0400 (EDT) From: Jiaxing Hu To: tomeu@tomeuvizoso.net, heiko@sntech.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, joro@8bytes.org, will@kernel.org, robin.murphy@arm.com, ulfh@kernel.org, p.zabel@pengutronix.de, ogabbay@kernel.org, zhangqing@rock-chips.com Cc: royalnet026@gmail.com, u.kleine-koenig@baylibre.com, chaoyi.chen@rock-chips.com, diederik@cknow-tech.com, alchark@flipper.net, dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, iommu@lists.linux.dev, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jiaxing Hu , Conor Dooley Subject: [PATCH v10 07/13] dt-bindings: iommu: rockchip: describe the RK3576 NPU MMU Date: Mon, 31 Aug 2026 16:07:58 +1200 Message-ID: <20260831040804.24111-8-gahing@gahingwoo.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260831040804.24111-1-gahing@gahingwoo.com> References: <20260831040804.24111-1-gahing@gahingwoo.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260830_210930_624491_D02B870F X-CRM114-Status: UNSURE ( 7.56 ) 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 The RK3576 NPU MMUs are rk3568-iommu compatible but take five clocks where every other Rockchip MMU takes two, the extra three being the compute clock and the two convolution buffer clocks. Give them a compatible of their own and pin both sides with an allOf, so that an rk3568-iommu cannot carry five clocks and an NPU MMU cannot carry two. Describing the extra clocks as belonging to one SoC without saying so in the schema, which is what a comment on a description does, leaves both of those spellings valid. Signed-off-by: Jiaxing Hu Acked-by: Conor Dooley --- .../bindings/iommu/rockchip,iommu.yaml | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml index 6ce41d11f..83d7e7c8e 100644 --- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml +++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml @@ -26,6 +26,7 @@ properties: - items: - enum: - rockchip,rk3576-iommu + - rockchip,rk3576-npu-iommu - rockchip,rk3588-iommu - const: rockchip,rk3568-iommu @@ -42,14 +43,22 @@ properties: minItems: 1 clocks: + minItems: 2 items: - description: Core clock - description: Interface clock + - description: Compute clock + - description: Convolution buffer core clock + - description: Convolution buffer interface clock clock-names: + minItems: 2 items: - const: aclk - const: iface + - const: npu + - const: aclk_cbuf + - const: hclk_cbuf "#iommu-cells": const: 0 @@ -72,6 +81,25 @@ required: - clock-names - "#iommu-cells" +allOf: + - if: + properties: + compatible: + contains: + const: rockchip,rk3576-npu-iommu + then: + properties: + clocks: + minItems: 5 + clock-names: + minItems: 5 + else: + properties: + clocks: + maxItems: 2 + clock-names: + maxItems: 2 + additionalProperties: false examples: -- 2.43.0