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 4472A18B48F; Wed, 16 Oct 2024 17:33:37 +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=1729100017; cv=none; b=rhM+t87LdyUh/9jlUwR/HZvMwJIEIKxo9qoo/BO7tjJ7DHj/uo+/A2BAtuHr9JjpwLy9fULf8+PW+aV2vXJHhQS4SJHgC1P1IpIz1GwCyafUdYqKXh7QD1Oc6cj6N2TQ3JvNovxfrI5Hd0aScBp0c/pJuLYi5NRW6R59mD90x6w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729100017; c=relaxed/simple; bh=wtfh80IvBuoxq9N6HapzeJouFtMVgk01N3a0zNQebwY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=q6XaAZWWc3PNX9r7Q/UEOS3DYOHnS4fSxvPT14JSi1hXPqU5XXFDzLBWvxdgdqkUASl6ww+bMEgW+saa/7xyerfmFEXmiMF8ihZfjO3KGfC+acFbK6LNsNyRy/thg2CI/Q5oGnAzcbUcqCs628OX+hhJlY6vA6jfRF41LMLV1hw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bNS5eEYv; 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="bNS5eEYv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F3F8BC4CEC5; Wed, 16 Oct 2024 17:33:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729100017; bh=wtfh80IvBuoxq9N6HapzeJouFtMVgk01N3a0zNQebwY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=bNS5eEYvRqJajb3r44E/MqXiN0sPJLO9zE0WvRZwP4EViidiEvNC3vMPyVD6iH39O 22/xqfZUjLo7wVqgCl27Ysy+/3Ykt5RU0c4bJzujMJI+EfNzjK8gyv8cC1msNXDMjB hQstHfqn4her+5zt4L8TDXMHf/XL4aUsUtneUlJzy67G0H6fg9Kkj1K6W0ctNhKoxv M1F8Vtsj2tnMcGYDsl0bD6cjcZMfoERgwYLDWQPa/OhoGXIAjWu8LEcUb++quCxkut y4SiEXGFJ+15lnQaPLplTbpjqjTgzaCilWAxoMpch2tGc9mByUY/hLg43N3/DgKSE4 WhrKcARfumXgw== Date: Wed, 16 Oct 2024 12:33:36 -0500 From: "Rob Herring (Arm)" To: Amelie Delaunay Cc: Vinod Koul , dmaengine@vger.kernel.org, Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Krzysztof Kozlowski , linux-kernel@vger.kernel.org, Conor Dooley , Alexandre Torgue , devicetree@vger.kernel.org Subject: Re: [PATCH v3 4/9] dt-bindings: dma: stm32-dma3: prevent additional transfers Message-ID: <172910001570.2076913.18277281938022731096.robh@kernel.org> References: <20241016-dma3-mp25-updates-v3-0-8311fe6f228d@foss.st.com> <20241016-dma3-mp25-updates-v3-4-8311fe6f228d@foss.st.com> 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: <20241016-dma3-mp25-updates-v3-4-8311fe6f228d@foss.st.com> On Wed, 16 Oct 2024 14:39:56 +0200, Amelie Delaunay wrote: > Some devices require a single transfer. For example, reading FMC ECC status > registers does not support multiple transfers. > Add the possibility to prevent additional transfers, by setting bit 17 of > the 'DMA transfer requirements' bit mask. > > Signed-off-by: Amelie Delaunay > --- > Changes in v3: > - Refine commit description as per Rob's suggestion. > Changes in v2: > - Reword commit title/message/content as per Rob's suggestion. > --- > Documentation/devicetree/bindings/dma/stm32/st,stm32-dma3.yaml | 3 +++ > 1 file changed, 3 insertions(+) > Reviewed-by: Rob Herring (Arm)