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[23.128.96.18]) by mx.google.com with ESMTP id e24si11793353edv.342.2020.07.14.12.29.39; Tue, 14 Jul 2020 12:30:06 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=z9B7j3Nb; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 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 S1728768AbgGNT3R (ORCPT + 99 others); Tue, 14 Jul 2020 15:29:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:45962 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726818AbgGNT3R (ORCPT ); Tue, 14 Jul 2020 15:29:17 -0400 Received: from localhost (fw-tnat.cambridge.arm.com [217.140.96.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3212D225AB; Tue, 14 Jul 2020 19:29:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594754956; bh=lMK7C6ng+T9UttAEHw5V+tYjQ5/2JkOgzpqo9X6mc6A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=z9B7j3NbUZSWppYeDQAoliZQLbE9Iujz+KijRvU37A58urcaPZIpzOIt7+gDmPr7C K8TQT2GWYlKq8154QaHk0XB8nBlOUD26VsMo4nVy95veZI0Bal7PAiSwlZ+sApFtdn fF/kC/KafxtVLpBBTRspGYZTFwUuf1JcYRlMwM8E= Date: Tue, 14 Jul 2020 20:29:07 +0100 From: Mark Brown To: Frieder Schrempf Cc: linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org Subject: Re: [PATCH] spi: spidev: Add compatible for external SPI ports on Kontron boards Message-ID: <20200714192907.GJ4900@sirena.org.uk> References: <20200702141846.7752-1-frieder.schrempf@kontron.de> <20200702142511.GF4483@sirena.org.uk> <24ec4eed-de01-28df-ee1f-f7bcfc80051a@kontron.de> <20200702150725.GI4483@sirena.org.uk> <479d566a-213f-4e33-8ac7-7637ae88e31c@kontron.de> <20200713151108.GB4420@sirena.org.uk> <2eb6971b-7ea4-c9c8-5452-6f4b17e8860a@kontron.de> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="ibvzjYYg+QDzMCy1" Content-Disposition: inline In-Reply-To: <2eb6971b-7ea4-c9c8-5452-6f4b17e8860a@kontron.de> X-Cookie: Your password is pitifully obvious. User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --ibvzjYYg+QDzMCy1 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Jul 14, 2020 at 10:54:15AM +0200, Frieder Schrempf wrote: > It would still be quite nice to benefit from the flexibility of DT overlays > not only for the SPI use case. But before I come up with any custom > solution, for now I will rather have the device in the DT statically. > I just wonder if I need to keep the DT node for the device in a separate > patch in our own tree, or if a node with a custom compatible string like for > example "kontron,user-spi" would be accepted upstream, without a matching > driver? I'm having a hard time getting enthusiastic about it TBH - can you not just use spidev and live with the warning? --ibvzjYYg+QDzMCy1 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl8OB4IACgkQJNaLcl1U h9DpaQf7BBqueEOqSjOvjtORDyHTDzwMyXjqzEizOxoc3v+nwMk+G90WhXg0aEM5 VPv8HBBGSPnQlzkc6qHJFYZ5axm4lNsQsED/KDm2nZ5pHYVHvg+S/+JOkAJXqaYx JI/gqdu+JFZYqUcV4i5/BwGO00zR3OntARea/24y/atTbxqB9Lm/vGrTs/Qw8FUR oflKzZdlg+s5aUiQvl7Gwa+9O2oJLM5EwpFjfGJ967GtKJfkMjHEKhwVqEvJgfeM 6unCikuBQrE4/w7S0xjlm/M+2fT2ussP0nr8yZmzsEN+q7AtHkyorPsvWiPnI9i2 HaD2ydvutHJVTqX5P2RYDtYromP/WA== =O3jF -----END PGP SIGNATURE----- --ibvzjYYg+QDzMCy1--