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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 F3847CCF9F5 for ; Thu, 30 Oct 2025 09:29:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=5JhskAMSbPVlSOTNFjzse6L3MehkffYRFL9WqDX3wYY=; b=cn3zmnepmqyZsZ+iJjhu7Icaal N+HulU2tTJIIGJaPC2zZldnb1NFB8BbLgjI6nYAYyeQ7+rk5NkV9NDbyuUrlwnj0Lfk9/qcQNcmRG xWhsNzGZquQuEBE5SC3lOpygIG013Pc8lqUPaSzOqq+rOL9vfXzgSkpNaCxaTl7P+DtrrUVUIIse2 wFIQ24Pc9Q9+jkrJsgHt58aBEyoUSEoHCyhYObJorOrO/s0Y62qMRFPSYIZUYvmMnTIEGDe9roCDx OdWtprn8HFENSwUjOrfQkeCbesGkRNoaIqSXKM4NmCF63glfBaZvXlhhZcSRh7berC6xd3QfvvoiX Xi7AYpkA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vEOy9-00000003rsv-3g4Y; Thu, 30 Oct 2025 09:29:21 +0000 Received: from bali.collaboradmins.com ([148.251.105.195]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vEOy8-00000003rsA-0BcI; Thu, 30 Oct 2025 09:29:21 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1761816556; bh=YyjGQwr4n5Ubu59xZkUEL74ae/TqjsZuDDm5YLuW3Q8=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=h+EBRGb1uH174RYx0/bt3F70i7EFNqYF93qQh2fbnEAFwy2dpGvFYenEKMS2c7UU1 ajeipmS2ovXFxr38PeuwYBCW3/8Y2ZAa5waMC+8HcTQUy6q1ThdCCuZairmfVDsPt3 JN7iwVBc2TQ6+gmcscpsp1jWpg7oOMPyv/bT7NIAtELUFab65OzsjNvwfsqjMAIGvx 7XDoageZ3llaz05qDybsO5Sn3wVTYn65Yx/EdCwv6Kua3IBb+mWyEIcCR+CIZE0/Z8 O5Ecwjxdm9yBpI7y0I+7X10LXc22Rlf8IMz+pMgc4HiOC2t0e07Ut1lmhwWE7EuTbo ctLRWe8Ii8XDw== Received: from [192.168.1.100] (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) (Authenticated sender: kholk11) by bali.collaboradmins.com (Postfix) with ESMTPSA id 9203217E1380; Thu, 30 Oct 2025 10:29:16 +0100 (CET) Message-ID: <141839e6-1dbe-4e98-8412-d47e853d997b@collabora.com> Date: Thu, 30 Oct 2025 10:29:16 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] remoteproc: mtk_scp: Construct FW path if firmware-name not present To: Arnd Bergmann , Chen-Yu Tsai Cc: Mathieu Poirier , linux-remoteproc@vger.kernel.org, Bjorn Andersson , Matthias Brugger , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, kernel@collabora.com References: <20251015084103.10737-1-angelogioacchino.delregno@collabora.com> <9f5a3dc5-d0f8-4172-a4b4-867919612a2d@collabora.com> From: AngeloGioacchino Del Regno Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251030_022920_248754_350A7F12 X-CRM114-Status: GOOD ( 18.80 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Il 30/10/25 10:10, Arnd Bergmann ha scritto: > On Thu, Oct 30, 2025, at 09:21, Chen-Yu Tsai wrote: >> On Wed, Oct 29, 2025 at 7:05 PM AngeloGioacchino Del Regno >> wrote: >>> >>>> >>>> I guess I can send a followup patch? >>> >>> The only followup patch that I deem to be necessary is one adding a symlink >>> or renaming for MT8188's SCP and nothing else. >> >> The firmware was uploaded in March of 2025, and is packaged in Debian >> Trixie, and was also backported to Bookworm. Either adding a symlink or >> renaming it won't trickle down to users for some time. So this seems >> like a possible ABI break, where the ABI is the file name. >> >> Or maybe you don't consider it as such because SCP hasn't been enabled >> in the kernel in any release yet? Just as a clarification: Exactly, SCP hasn't been enabled in the kernel in any release in the specific case of MT8188, so this is not breaking anything, and it's not creating any regression. > > It's normally up to the kernel driver to know about the firmware > file names and the order of trying the possible fallbacks, which > is exactly why I originally asked to not rely on the property > from dtb. > > If you want a symlink in linux-firmware, that would go the other > way, pointing the old filename to the new location. > > Arnd Cheers! Angelo