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 4222C2741AB; Thu, 4 Dec 2025 21:36:36 +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=1764884196; cv=none; b=P6EGAkCeV+Kv0A8JpZcOApgiqz3JJmRonNkuSpZSnGgCrL4aYr3KS6sj8qPITDhzyJZ8EzXfM0Fn1iuPLt2Ty6tGbV2GuIEA3HUl24bEYeibCVW/WboEtO7OD3VF9lMa5TXt98NyjewLmY7fXooVgpcEa0gBvYz4dw/ofcIOxQE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764884196; c=relaxed/simple; bh=364uo4R19wBUN9DtJRd+36+KuRNDgwgor8/CpcvYBPc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=s03oP++9pHmFugXwJT2dwx48dGSNE+VWqIzVjxT0YBT0a3U72DnZJRXXOpUhgyceFxxSqDksV6euaYV9Qv9yZoX+0c3MhYv0ENQyM4w5VAis6BeFZlz3OUX2FCs2x99deP4oXpmaDwfp5wR0N+773CEURizfxKWE8SaDT0AN8NM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KlPdaAfa; 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="KlPdaAfa" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 99FE1C4CEFB; Thu, 4 Dec 2025 21:36:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764884195; bh=364uo4R19wBUN9DtJRd+36+KuRNDgwgor8/CpcvYBPc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=KlPdaAfa3UGOjholSMCtQ/6wRaYnVNVJNsCyAQT60lcJbq3kf+DbkJ/3C8hOq2Uz3 1X6kR5poAatjS/0AVJwtbTWyoTCmGTd7w1kQUn6eX3HGYb6aLaUeLcz/quK3KBM+zW PdvNZ287lYUqMxM8E5Pj3UOf8PpWO0x+/c7ZbYtvF5FEGGIkWrKFyKSH20BJh1fSyV Fc482g1rp8+pJCpgl9bP6/iadbqmpsEWj8mq16YCBDGQ0ARWdINloyK5EfKp/xRgSm S9u7ThvUg9hkp0rua7wovI0oBj0wKVGVRhzejeoFlPazW3/UFrS9/I5XzBwQ0otwRh b/A/UrfMeEw/A== Date: Thu, 4 Dec 2025 15:36:32 -0600 From: "Rob Herring (Arm)" To: Khairul Anuar Romli Cc: linux-mtd@lists.infradead.org, Richard Weinberger , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, Dinh Nguyen , Vignesh Raghavendra , Conor Dooley , Eugeniy Paltsev , Miquel Raynal , Vinod Koul , devicetree@vger.kernel.org, Niravkumar L Rabara , Krzysztof Kozlowski Subject: Re: [PATCH v2 1/3] dt-bindings: mtd: cdns,hp-nfc: Add dma-coherent property Message-ID: <176488419217.2206248.9983976146883123306.robh@kernel.org> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Wed, 03 Dec 2025 07:47:33 +0800, Khairul Anuar Romli wrote: > 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 > --- > Changes in v2: > - Rephrase commit message to describe why the property is needed now > and was not needed previously. > - Remove redundant statement. > --- > Documentation/devicetree/bindings/mtd/cdns,hp-nfc.yaml | 2 ++ > 1 file changed, 2 insertions(+) > Reviewed-by: Rob Herring (Arm)