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 CA7A458ABF; Mon, 9 Sep 2024 16:06:42 +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=1725898002; cv=none; b=XEqBB7Em05Z++C5YvkQca3NK+nsNw7GaQFpcpFgWGiO9XUppyIouloF3CM/4J+M3u5c9aW91UrghGoLDuOccUhRPPM04lHBUhLWnU9h8K6BbnrdGSXfGvVOX6o6W3QsGkRWZHxTpO/+wLqmG18UkTyCPinSHLuRT3XMl/xkbuis= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725898002; c=relaxed/simple; bh=mDVnefQAJunAzspN/WsR1bpxkh1iGXg4R1jTU0SJ5zk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=TbTU/2XJ0wXK1O1mnCfbhBcUztgrLYBeqjNDN2uLxCsb4bj8BWGk5DmKl6AtEkiLANr0TGi2AXuW3RzVP3OmbEP/xVZifk/YxDf2UAA7ChCBu95CFGET4M5pQKWGGaFSmT/4L0qzsgsc2DqbX7GzuSe3DWauR0jf10CA2pZXsgE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=uQEmJJIK; 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="uQEmJJIK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 73B56C4CEC5; Mon, 9 Sep 2024 16:06:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725898002; bh=mDVnefQAJunAzspN/WsR1bpxkh1iGXg4R1jTU0SJ5zk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=uQEmJJIK9i4b2nmvW46aeXYhPMA9/zZm4b9452RpqaHyyfkPcFmPcyapYTH7uULRf S7KnvUrSKOR2mHjaMKH45hlLSYL30kjOy/3TGdGj2qqgXfvIcRVaddtxnD3NdCUtjX OB2+1RWxjcPQYrYfVqcbFjLrnrX1lS3DLAas38fqEWpEvqSUC9oQuQlWmYqp3bZwrE 5xuX75HATmmF5uE06MMgwjWVO5HBkiPH1XaE2tFzC1iXNISST+0NWDQqzKxX6w1dpl YS+UMuBPszxoNcrja40bWNGGOuL7ZtYoqTk1GGbY5JvWoUINd5EzCrNbZ9DQ+/Dm8T GFY9EJmyH5eJQ== Date: Mon, 9 Sep 2024 17:06:37 +0100 From: Conor Dooley To: Nuno =?iso-8859-1?Q?S=E1?= Cc: Conor Dooley , Jonathan Cameron , Angelo Dureghello , Lars-Peter Clausen , Michael Hennerich , Nuno =?iso-8859-1?Q?S=E1?= , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Olivier Moysan , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, David Lechner Subject: Re: [PATCH v2 1/9] dt-bindings: iio: dac: ad3552r: add io-backend property Message-ID: <20240909-retrieval-guide-da2a35e571a5@spud> References: <20240905-wip-bl-ad3552r-axi-v0-iio-testing-v2-0-87d669674c00@baylibre.com> <20240905-wip-bl-ad3552r-axi-v0-iio-testing-v2-1-87d669674c00@baylibre.com> <20240908132925.331c5175@jic23-huawei> <20240909-dwelled-specimen-949f44c8d04d@wendy> <1dca9ce52e7c701c7fb6cbbc723e9dff5d0ace8b.camel@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="QJgtZu1F/+wMZDUF" Content-Disposition: inline In-Reply-To: <1dca9ce52e7c701c7fb6cbbc723e9dff5d0ace8b.camel@gmail.com> --QJgtZu1F/+wMZDUF Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Sep 09, 2024 at 04:03:17PM +0200, Nuno S=E1 wrote: > On Mon, 2024-09-09 at 13:46 +0100, Conor Dooley wrote: > > On Sun, Sep 08, 2024 at 01:29:25PM +0100, Jonathan Cameron wrote: > > I'd also really like to know how this fits in with spi-offloads. It > > /feels/, and I'd like to reiterate the word feels, like a rather similar > > idea just applied to a DAC instead of an ADC. >=20 > The offload main principle is to replay a spi transfer periodically given= an > input trigger. I'm not so sure we have that same principle in here. In he= re I > guess we stream data over the qspi interface based on SCLK which can look > similar. The difference is that this IP does not need any trigger for any= spi > transfer replay (I think).=20 Right, if the trigger part is what decides it for you then I'm wildin here. --QJgtZu1F/+wMZDUF Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCZt8dDQAKCRB4tDGHoIJi 0s4xAQC4NATh6G425B4WZvd5sGTC5i3wnUDbjaIlQmp/hHwjPQD+L1esehPkEcGt 6094n/y+3K7GbjRT7uSXeGW9wQf2LQo= =Wl47 -----END PGP SIGNATURE----- --QJgtZu1F/+wMZDUF--