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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 33047C55162 for ; Mon, 3 Aug 2026 06:33:02 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 89A5310E434; Mon, 3 Aug 2026 06:33:01 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="fatJpDk/"; dkim-atps=neutral Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1A11310E434 for ; Mon, 3 Aug 2026 06:33:00 +0000 (UTC) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id CF5F760A5D; Mon, 3 Aug 2026 06:32:58 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A16221F000E9; Mon, 3 Aug 2026 06:32:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785738778; bh=iBvbbycEFCwsqkOZfuKR0iIpmzS3B9uxNnLL+JAjcyQ=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=fatJpDk/9hZHA8ytryUUaJcsHXnKmUIa3JvdMRJfh5UuR/ZqMHodcxFYCAZmLLIuF 7F7NNSaFrta1OOO7/G2ELCqvGRg3CZ6lNO9c9ZG2LjbIg/t2hwTz+Wv7irzLbv+VQe 1HgRcZFBOg2vwm067Wom00nK09YMVarAwjkyL4iK2ScasL+v4GAqI7g9At0hxBcPT1 RWbwh+YzK0q1PlT40RMKvUVjpg5/BADyWEIj7VhEYY0zk3+j95s5o1finGgjXf6FHc hWWenDDsH6OIR7b3KK20orVUtpMhlltDF0qE9GmZGoVQ0bFbTTbTvibwDZU3JVdubl 0EA7VBZp2n+fw== Message-ID: Date: Mon, 3 Aug 2026 08:32:51 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/2] dt-bindings: display: Add GlandaGPU binding To: Leander Kieweg Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, airlied@gmail.com, simona@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, u.kleine-koenig@baylibre.com References: <20260730173643.256052-1-kieweg.leander@gmail.com> <20260730173643.256052-2-kieweg.leander@gmail.com> <20260731-petrel-of-fascinating-finesse-cd10ae@quoll> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 02/08/2026 18:16, Leander Kieweg wrote: > Thanks for the review. > >>> +properties: >>> + compatible: >>> + const: glanda,gpu-1.0 >> >> What does this 1.0 correspond to? There is no such tag on linked Github. > > I've pushed a v1.0 tag to the GlandaGPU repo now, matching the > register interface described in this binding: > https://github.com/stiangglanda/GlandaGPU/releases/tag/v1.0 > >>> + "^glanda,.*": >>> + description: GlandaGPU >> >> Vendor prefixes are per actual vendor, not product. >> >> I have doubts this is needed in the first place. As a pure FPGA design, >> this cannot work alone and you cannot get it alone (at least yet, >> happily to see resources proving me wrong). Thus it will be always >> customized per final board design, thus that final compatible is what >> matters. > > "opencores" and "openrisc" are both accepted vendor prefixes for > open-source hardware projects rather than commercial vendors, so a > project name seems reasonable to me here too. > > That said, I take your point about board customization. I'm happy to > add a board-specific compatible as the primary match, with > "glanda,gpu-1.0" as the fallback, e.g.: > > compatible = "terasic,de10-standard-glandagpu", "glanda,gpu-1.0"; > > The driver would keep matching on "glanda,gpu-1.0". Let me know > if you'd like this for v3, or if the generic compatible is enough for now, > since there's currently only one board using this core. openrisc is arch. opencores is entire org. Are you saying that "Glanda" is this one: https://www.glanda.com.au/ and opencores releases entire SoCs, thus they integrate their own IPs there into final product. I agree though, that opencores should not define standalone generic compatibles. Best regards, Krzysztof