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=-12.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 4BE72C63697 for ; Wed, 18 Nov 2020 11:41:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DFA862225B for ; Wed, 18 Nov 2020 11:41:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="X1VHm5FT" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727994AbgKRLlM (ORCPT ); Wed, 18 Nov 2020 06:41:12 -0500 Received: from mail.kernel.org ([198.145.29.99]:36750 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727934AbgKRLlK (ORCPT ); Wed, 18 Nov 2020 06:41:10 -0500 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 C8EBB22244; Wed, 18 Nov 2020 11:41:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1605699669; bh=/iWyRf0Qo73rzS60vJwLkUm9F/LYP/2TxpHaJJkQEU0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=X1VHm5FT+8S07CtDm7rlRqg7+ZPh+I1bg+R85y88wiOlths0B5oUS0yJCOc/PruVb kXzkyGaPSyomjiOlIX6l9OvTXikH8VMMjTlCQdZU2u9aQV9U8aaUh+WUmSOFSnriDB ejhZTmSXt8kkc7GaV/IPtOpoas7ghjcI30Bd9XZo= Date: Wed, 18 Nov 2020 11:40:49 +0000 From: Mark Brown To: Linus Walleij Cc: Grant Likely , Rob Herring , Sven Van Asbroeck , Andy Shevchenko , Jonathan Cameron , Simon Han , Lukas Wunner , linux-spi , Linux Kernel Mailing List Subject: Re: [PATCH v1] spi: fix client driver breakages when using GPIO descriptors Message-ID: <20201118114049.GA4827@sirena.org.uk> References: <20201106150706.29089-1-TheSven73@gmail.com> <20201111123327.GB4847@sirena.org.uk> <20201116210632.GJ4739@sirena.org.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="/9DWx/yDrRhgMJTb" Content-Disposition: inline In-Reply-To: X-Cookie: A nuclear war can ruin your whole day. User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --/9DWx/yDrRhgMJTb Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wed, Nov 18, 2020 at 02:03:41AM +0100, Linus Walleij wrote: > On Mon, Nov 16, 2020 at 10:06 PM Mark Brown wrote: > > I think the main push in the other direction has always been people who > > want to not have to write a driver at all and put absolutely everything > > into DT which has scaling issues :/ > What I can't understand is what gave them that idea. > This thing looks like a dream to these people for example: > https://gist.github.com/Minecrell/56c2b20118ba00a9723f0785301bc5ec#file-dsi_panel_s6e88a0_ams452ef01_qhd_octa_video-dtsi > And it looks like a nightmare to me. > (There is even a tool to convert this description into a proper display > driver now.) > It just seems to be one of those golden hammer things: everything > start to look like nails. What people think they were sold was the idea that they shouldn't have to write driver code or upstream things, something with more AML like capabilities (not realising that AML works partly because ACPI hugely constrains system design). --/9DWx/yDrRhgMJTb Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl+1CEAACgkQJNaLcl1U h9Cw7Af/eN2uIk9j6rgmXtnqSC8+jausLofGPpPhhJXMNcbfaJ95BXqY3iGv6t+p 9P+7MiPqhttKApFoZr9sz4gCRycPKZjSRDjQNld51LxIHCZlomSVu0/+Zyp1Ox3f pKDrfAam4S5mg//oDpIiNlfblsASf6vNe/yfpPHoKfH/Dup+kRjvZ2FI9dXILNex CsNIVnPn+URCnzRpVLUv6KNWGfDhHmdtvU0XBm0QXjDBBq/K6qt82sDEBomMi+wc YwpWzFgrE0Ml5LVmex9UISJM9txSbcmbL1IIG4rVFWvuMju1Lm2xDijTS1muytp0 pdtd/U3CZB5mFExu6KygsNjR8pwC8Q== =FHzQ -----END PGP SIGNATURE----- --/9DWx/yDrRhgMJTb--