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[2620:137:e000::1:20]) by mx.google.com with ESMTP id 30-20020a17090a001e00b002507cbb009bsi2758288pja.112.2023.06.02.05.35.57; Fri, 02 Jun 2023 05:36:09 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=el95joKQ; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235918AbjFBMXI (ORCPT + 99 others); Fri, 2 Jun 2023 08:23:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34836 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235687AbjFBMWx (ORCPT ); Fri, 2 Jun 2023 08:22:53 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 726D1E45; Fri, 2 Jun 2023 05:22:43 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 0DF9864FD4; Fri, 2 Jun 2023 12:22:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 12D26C433EF; Fri, 2 Jun 2023 12:22:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1685708562; bh=shNWx6PFTlZH3l3m3BnGPmtrxXFRFCsjkB9++JCK98M=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=el95joKQmeHIrPzPxwzjZ6qgl0W4VWbIztz33qjwDs5PNcAqt9GHZj1DMCTz+SM7l xF3m6LHnFputavM2+e8nrZIVLi5zq6YsKwNeLiIfQKU43zuTX58KR66OnHA+a2+Tdv iwGBOUc1IlTI5evUTyA/9RRLL8n2APTDXzxfBzYvRioGkerCGtBRylnOLVI06lwBMg HfzQoIbVfX1S20pFUzd34/vMyrUei+pEWvmZ3LvmYMtvytHnjqUm6up+iIhcwTUYgk omwxAu+WUyib1tkhkR+55dEIebp7+HAh4T1+UU/DwxPuF7eta0Thy/lhhL4JeYIw7k 4lTEEQv0q6iZw== Date: Fri, 2 Jun 2023 13:22:36 +0100 From: Mark Brown To: Matthias Schiffer Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Linus Walleij , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux@ew.tq-group.com Subject: Re: [PATCH 1/2] spi: dt-bindings: introduce linux,use-rt-queue flag Message-ID: <628b7411-7d12-4915-80c8-cabb74ac6590@sirena.org.uk> References: <20230602115201.415718-1-matthias.schiffer@ew.tq-group.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="46S1Pyf2fGJjRDRn" Content-Disposition: inline In-Reply-To: <20230602115201.415718-1-matthias.schiffer@ew.tq-group.com> X-Cookie: War is an equal opportunity destroyer. X-Spam-Status: No, score=-7.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --46S1Pyf2fGJjRDRn Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jun 02, 2023 at 01:52:00PM +0200, Matthias Schiffer wrote: > We have seen a number of downstream patches that allow enabling the > realtime feature of the SPI subsystem to reduce latency. These were > usually implemented for a specific SPI driver, even though the actual > handling of the rt flag is happening in the generic SPI controller code. >=20 > Introduce a generic linux,use-rt-queue flag that can be used with any > controller driver. The now redundant driver-specific pl022,rt flag is > marked as deprecated. This is clearly OS specific tuning so out of scope for DT... --46S1Pyf2fGJjRDRn Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmR53wwACgkQJNaLcl1U h9ATnwf8DeqEMGZX6YWquv4DiwGh9r4pUYflsXOy0mAeVMTZzGlUg4S65jr1G/lK Pky2kCDuOXO3NhC4sZF+l7OStNmj8JEhMdEYic3dUv5ypPKBYqDQ9RVbHTtBO6bK KsEjSA+xOJz0MV9P7jRQrS0UbiY2PiwZ+EuHr+FFxy8aTJ4ZUSFZlgwf6dMXnhHw jrkq/h9Gfey75Bn0g0WfVpXhap6CoMpkwcykfWtjxss+6GYjGJnO5iOgSoK1/hlD O5YLIrB6dP1uI1WnTtwoQLy5il6+k3egJ2cxHPu/IAIADtYhwly4yyTV5V8FiZV5 +vP8P2wCBCY03hZlP+WPGi4fHFfqhQ== =qcmR -----END PGP SIGNATURE----- --46S1Pyf2fGJjRDRn--