From nobody Sat Feb 7 13:45:47 2026 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 6B08934DCE4; Sat, 31 Jan 2026 17:26:17 +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=1769880377; cv=none; b=B+zdrzhWXs/spewTTub4hfKMaW5LQWdmfMzZrmR0sH1knaBZJMZ21i735Yie6DOn3SOMuzqv3dGIuGrggeeoyUwLmeyACmVFvxaioprRX4mANj60eEFCaEbuBm5b519YsjRjAp83aeEdQVDdmQV4Pj+N4VWVjHKUfSksgk8Seg4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769880377; c=relaxed/simple; bh=lL2KpW+5gB6aNpRTESTk9jPO2YC6wPsXm8d7yK5Jj18=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Dmt2x6XwDRekr5ifBcB50+uu1m/8ifyfDd/CA2ZR+OGN8qrSfKFLC/l34MdehbzO9Khh1d+euNk8jmPBfu/uVCo8wDdMLMbcfDmm2EFEbcCmjumtFSXcpAPg5bWfahJMwQW6gApY4ABoLrL8T7UTKb/6Ai8+HFl52X4rY9W78P0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=NVeIufvS; 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="NVeIufvS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 688EEC4CEF1; Sat, 31 Jan 2026 17:26:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1769880377; bh=lL2KpW+5gB6aNpRTESTk9jPO2YC6wPsXm8d7yK5Jj18=; h=From:To:Cc:Subject:Date:From; b=NVeIufvSICOnM+jMbsW8QKlexpX1UkuaFssed1due4sdc1ETuQYs1szA/hX5fgeJU ZgLlaCoRcN2akffcRil9db/7eXFipFdJ7QO3Hh80GnwnPoTUidA0A5JWsTQzJuVrsO GFSxxZWffMTE3VyUWiyDwDxcLR2ssz0pG8K/5qYlz8NUlFeAqhjrY6mkMWLwHdon37 XM+UiijsonYAEjnc83Dp/bBuOxp1lDB/DX7RL0Kx46AaEFfuKF7NdxQyRndilKe9wS tUlH9Sg/O2fjOFdmhZnaIFkVT/Zprr3N4p0cqo4o8LZbu54N++wABb8T9c8sqE7ohE +1BqBnx49mAwA== From: Dinh Nguyen To: miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com Cc: dinguyen@kernel.org, linux-mtd@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Khairul Anuar Romli , Rob Herring Subject: [PATCH] dt-bindings: mtd: cdns,hp-nfc: Add dma-coherent property Date: Sat, 31 Jan 2026 11:26:11 -0600 Message-ID: <20260131172611.28807-1-dinguyen@kernel.org> X-Mailer: git-send-email 2.42.0.411.g813d9a9188 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Khairul Anuar Romli The Cadence HP NAND Flash Controller on supports DMA transactions through a coherent interconnect. In previous generations SoC (Stratix10 and Agilex) the interconnect was non-coherent, hence there is no need for dma-coherent property to be presence. In Agilex 5, the architecture has changed. It introduced a coherent interconnect that supports cache-coherent DMA. Signed-off-by: Khairul Anuar Romli Reviewed-by: Rob Herring (Arm) Signed-off-by: Dinh Nguyen --- Documentation/devicetree/bindings/mtd/cdns,hp-nfc.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/mtd/cdns,hp-nfc.yaml b/Docum= entation/devicetree/bindings/mtd/cdns,hp-nfc.yaml index 73dc69cee4d8..367257a227b1 100644 --- a/Documentation/devicetree/bindings/mtd/cdns,hp-nfc.yaml +++ b/Documentation/devicetree/bindings/mtd/cdns,hp-nfc.yaml @@ -40,6 +40,8 @@ properties: dmas: maxItems: 1 =20 + dma-coherent: true + iommus: maxItems: 1 =20 --=20 2.42.0.411.g813d9a9188