From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8E27C433E0 for ; Tue, 16 Jun 2020 11:03:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 865F5207C4 for ; Tue, 16 Jun 2020 11:03:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592305432; bh=D5VxNNsWQG7Dnro1Y+aM+B4Rod1A23KmuRCGJah97io=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=RnNECTNrj4CYPmH0F9U0E0JXnySlSwANFC24649k/4W/ZlxB/cVsQ5XEW8tCTHpTq ov5C+cGufOaQ09//WqJpghmPYUYXHpcCZyiTGQTNydr2cCogHrnJiOletZyLnd6e96 R+cWXop6zfS6MkbYrJEwGvRldLCjvoyXonqIioxA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728231AbgFPLDv (ORCPT ); Tue, 16 Jun 2020 07:03:51 -0400 Received: from mail.kernel.org ([198.145.29.99]:41610 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725901AbgFPLDs (ORCPT ); Tue, 16 Jun 2020 07:03:48 -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 53060207C4; Tue, 16 Jun 2020 11:03:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592305427; bh=D5VxNNsWQG7Dnro1Y+aM+B4Rod1A23KmuRCGJah97io=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=QZOoTvElAW7imPfVPdHU3wzfLaqrPFIGRturrOTRFLQADTVSjWQbP5SqaNbBZD72+ fuK1KVqTF9OL7xXIj5AT8tu3USiek8qIpa1DjbfYoFzUnPrUKIp1nMIQtb8+VXfQSg BOjg18+W4AIxefHpJJetfV1EhhguP/3vwOnlHu0w= Date: Tue, 16 Jun 2020 12:03:45 +0100 From: Mark Brown To: Geert Uytterhoeven Cc: Lad Prabhakar , Magnus Damm , Rob Herring , linux-spi , Linux-Renesas , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Linux Kernel Mailing List , Prabhakar Subject: Re: [PATCH 1/2] dt-bindings: spi: renesas,sh-msiof: Add r8a7742 support Message-ID: <20200616110345.GM4447@sirena.org.uk> References: <1591736054-568-1-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com> <1591736054-568-2-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com> <20200610110810.GD5005@sirena.org.uk> <20200610164928.GJ5005@sirena.org.uk> <20200611085004.GC4671@sirena.org.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="glNuw4S6NeIZr5j7" Content-Disposition: inline In-Reply-To: X-Cookie: Offer may end without notice. 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 --glNuw4S6NeIZr5j7 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, Jun 11, 2020 at 02:09:54PM +0200, Geert Uytterhoeven wrote: > On Thu, Jun 11, 2020 at 10:50 AM Mark Brown wrote: > > I'm not sure it's a particular concern, especially since you'll be > > sending this stuff in the same series as a bindings update and an extra > > patch in a series makes very little difference. > Until the DT bindings are split off into their own project... > Listing unneeded compatible values in drivers also increases binary size. > For RSPI and MSIOF that would be +2.5 KiB each. Times tens of drivers. > Considering the RSPI driver itself is only 9 KiB, and some RZ/A1 systems > are really memory-constrained, I think it's better to avoid that. That is an issue, though I can't help wondering if space constrained systems could use some sort of automatic compaction of the ID tables during install. We're also bloating their DTs by adding fallbacks of course! > > > Nowadays we have "make dtbs_check", so if a DTS doesn't conform to the > > > binding, it will be flagged. > > For things that are upstream. > The DT bindings apply to out-of-tree DTS files, too ;-) > If they're not compliant, all odds are off. The point here is to improve robustness and make the interface less fragile. --glNuw4S6NeIZr5j7 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl7opxAACgkQJNaLcl1U h9Clqgf+NXdGTDeyVuyK7mHfxG3TU29aQ6SxLfp1zChued6vIWJ467CxbXbKysTU Y90kMfKvPmR4Yx8yCB26tssThBUgY6z9HS1CgLUEHYJmeHN3qK7cgNJKydxW+wXr QoiIedUNg3qvg+5mmP+HW0KSl7iCYLe37TdZvFrXse0Jsh7uHKg6m8s568s75byG pl0WyBiRotsSsOUrPVFI1kQ3ofUiBecMmyWwL5SDV5fPfPnQLWZgf2KKgsFfeREo tfPgIK6ILBuH5mmSQ4xo3xVIkVg9MMwOG+47Gzm1pkG6p3JX/dv9DiESxmZSuc6W PpEoyXXzPoNbTny9qQTvmss7G3G2OQ== =5KTC -----END PGP SIGNATURE----- --glNuw4S6NeIZr5j7--