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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8435C433EF for ; Tue, 1 Feb 2022 13:10:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238715AbiBANKG (ORCPT ); Tue, 1 Feb 2022 08:10:06 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:59592 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238716AbiBANJR (ORCPT ); Tue, 1 Feb 2022 08:09:17 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1643720956; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Swdbs0KGcPDJP8bHPLb5XLPBG6TEyMwLGc8obCIfC/8=; b=LEGsYCBg7TXAAfayGgTaQjj9Vzdj4ieCDTShYxGeR3lcaRXgrGEKNDhBXkPSKQa14zEFQl YTKGADDAU6zX18sAdMuO6OPgCfYxE+ppUvRFnZ/q4Zm67ZnQkiYv4YZeN1wQN69YMMW3SE FbZJ4y/TUFDJZApCGjb93w3Hj96rUdU= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-464-fTwgoXliOEKm6HPCcC5q8A-1; Tue, 01 Feb 2022 08:09:15 -0500 X-MC-Unique: fTwgoXliOEKm6HPCcC5q8A-1 Received: by mail-wr1-f71.google.com with SMTP id g17-20020adfa591000000b001da86c91c22so6020416wrc.5 for ; Tue, 01 Feb 2022 05:09:15 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=Swdbs0KGcPDJP8bHPLb5XLPBG6TEyMwLGc8obCIfC/8=; b=L/0p8mFu3EKKfMK5fAG5iIVgeEB78Dk7mUR3LLzBTSzcEauN5VOzNNjhoq3Ws2sBsn iu8z3dcvcIFTSNaVwXDkKRZbotiDRXHkHfaLX1x9VWXNOwbYZXquUllfLHOTy1sg9tDI P1CTIuignLJIf5lkenz8dKqpWJRe9c4SHORz+cWJ/e8hbT5IwmHcFizr2amiXoxo8m7U /MGJPtNdcIanhr9hzRIGMel1MG5ec8bMJeSdP0G8/8x71hK7ca5oDRUTcXHlAobWye8P r9Q2A1s+m6uLMWCyiAsOpVEan6ywuQMCv/mrklHucEgXW5ipVUP5lGq2OhWiiLXy34dM LbqQ== X-Gm-Message-State: AOAM531Px+wUJjatfwMYHZkvXsz9RyYuKiXJ2HQiAtME1kEJiuieFDxO 3qF5eCDq2XFWHbJ8wKZ/H3JYeYiM1esYdVayvuRopaoSkHdvzqUFWBH2OVmiJv/wtCxU/Wf9suK eXm7Sqp+YUTo3+hB4AdEJnlbO X-Received: by 2002:adf:e352:: with SMTP id n18mr21470517wrj.186.1643720954337; Tue, 01 Feb 2022 05:09:14 -0800 (PST) X-Google-Smtp-Source: ABdhPJyOn1oxGJgGYrZTitNon0Jegeh+MsCQ2kZKpT+TAayFOqeP9U5cQ7Py9fW0vZeynCe+/FW0Dg== X-Received: by 2002:adf:e352:: with SMTP id n18mr21470498wrj.186.1643720954131; Tue, 01 Feb 2022 05:09:14 -0800 (PST) Received: from [192.168.1.102] ([92.176.231.205]) by smtp.gmail.com with ESMTPSA id l29sm3177560wms.1.2022.02.01.05.09.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 01 Feb 2022 05:09:13 -0800 (PST) Message-ID: <51f54519-bb8b-f108-1c1e-4fed101ca5ef@redhat.com> Date: Tue, 1 Feb 2022 14:09:12 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH 0/4] drm/tiny: Add driver for Solomon SSD1307 OLED displays Content-Language: en-US To: Geert Uytterhoeven Cc: Andy Shevchenko , Sam Ravnborg , Linux Kernel Mailing List , Linux PWM List , Linux Fbdev development list , Thomas Zimmermann , David Airlie , Daniel Vetter , Mark Brown , DRI Development , Liam Girdwood , =?UTF-8?Q?Noralf_Tr=c3=b8nnes?= , Maxime Ripard , =?UTF-8?Q?Uwe_Kleine-K=c3=b6nig?= , Thierry Reding , Lee Jones References: <20220131201225.2324984-1-javierm@redhat.com> From: Javier Martinez Canillas In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello Geert, On 2/1/22 12:38, Geert Uytterhoeven wrote: [snip] >> >> Since the current binding has a compatible "ssd1305fb-i2c", we could make the >> new one "ssd1305drm-i2c" or better, just "ssd1305-i2c". > > DT describes hardware, not software policy. > If the hardware is the same, the DT bindings should stay the same. > Yes I know that but the thing is that the current binding don't describe the hardware correctly. For instance, don't use a backlight DT node as a property of the panel and have this "fb" suffix in the compatible strings. Having said that, my opinion is that we should just keep with the existing bindings and make compatible to that even if isn't completely correct. Since that will ease adoption of the new DRM driver and allow users to use it without the need to update their DTBs. Best regards, -- Javier Martinez Canillas Linux Engineering Red Hat