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 20BA519DF99; Thu, 30 Jan 2025 23:20:05 +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=1738279207; cv=none; b=pXmTs5kYsN79N++7qLvMrXSD08mN2cGaVdQjHMvrA6vaUMWEkMIknJmDPoejBYvhpXUdzVfhmVIa3wAH5p2dAEVO7hEEJIZjsgjHYj8yeomDyh7KVCaiLSv84sk+nEIQIV0WZrgERWXzHxToEwTWvmvLrk5F1Ssh+pnJnAyWMOg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738279207; c=relaxed/simple; bh=KpU19pPWgjFCuwWnk0SmFXgxBVKLllJYcw36Fo9osrg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=lLdRYk+NQvjgv+Vqpa9N5igQIVUj7PjDYmqHqi8oM7a+uZOSKGld4PILlhjnEHPtsuPiwsaxjrwMCtkbdE7U9DPgCLgxG+t9M6WozVKPHM2QMJq+KT8CzI864fiy1qbaMMYHy9vZRGJn+PTdQ3XhhoqW9iNXeZVVvdLhoINkz6o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ERqVUCNt; 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="ERqVUCNt" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 62DBEC4CED2; Thu, 30 Jan 2025 23:20:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1738279205; bh=KpU19pPWgjFCuwWnk0SmFXgxBVKLllJYcw36Fo9osrg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ERqVUCNtbs+MzLdhNdvgBbEjriNPD+yPZlBdTguGqhpz6nhLt0Q1qEpzAz1NpSC+U UJRC4z+qMWIPBsk+AkOOIm8AAYpM0t2iMy1oWJ3OisQC2mXpY2wDDNo7yMV5e5te0d qjeh/puZLvAbfjwaYR+VQcPxIdPfDGSMakwFr6s5tWOGEYAvliMRWa3/burDmWPvc7 aWJsFVAKeOPJP3JgMiUv3mLaItpjObrdvpYggJrl1DzHKdWgxWFIST81ZsBDj5ZBo1 W7KIlck3OGfLXlCXHkzatU6xx1VGcNbZ0Nmx360SlZWcm1LWhyjcrTQcRMDnsD7Y7D NJYRI+1Iq4ldg== Date: Thu, 30 Jan 2025 17:20:04 -0600 From: Rob Herring To: Florent Tomasin Cc: Vinod Koul , Krzysztof Kozlowski , Conor Dooley , Boris Brezillon , Steven Price , Liviu Dudau , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sumit Semwal , Benjamin Gaignard , Brian Starkey , John Stultz , "T . J . Mercier" , Christian =?iso-8859-1?Q?K=F6nig?= , Matthias Brugger , AngeloGioacchino Del Regno , Yong Wu , dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, nd@arm.com, Akash Goel Subject: Re: [RFC PATCH 1/5] dt-bindings: dma: Add CMA Heap bindings Message-ID: <20250130232004.GA1818629-robh@kernel.org> References: <771534be8dfa2a3bdc3876502752f518224b9298.1738228114.git.florent.tomasin@arm.com> Precedence: bulk X-Mailing-List: dmaengine@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: <771534be8dfa2a3bdc3876502752f518224b9298.1738228114.git.florent.tomasin@arm.com> On Thu, Jan 30, 2025 at 01:08:57PM +0000, Florent Tomasin wrote: > Introduce a CMA Heap dt-binding allowing custom > CMA heap registrations. > > * Note to the reviewers: > The patch was used for the development of the protected mode > feature in Panthor CSF kernel driver and is not initially thought > to land in the Linux kernel. It is mostly relevant if someone > wants to reproduce the environment of testing. Please, raise > interest if you think the patch has value in the Linux kernel. Why would panthor need CMA, it has an MMU. In any case, I agree with Maxime that this is redundant. Rob