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 7704BC02182 for ; Tue, 21 Jan 2025 10:00:46 +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:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=lLlgyRyStArmIFUOO0SSD+KwmRWB1muBwX485RB8ANg=; b=f8GpTPubeATnI83Unbq4+i+67y WKQx5ARpbzGZZ5H31qe7xjrTWf+QaaByTHUH2sYHmzv5LLD85u0rtxDYka/Fh+OLnY3KEHigsjGvc T13+ekjdhU1NISo0iz1zclsfn4k/lc/TxaPc1vl1GcKolik/T3hvIztMLP/NIivMx30BruzExgGYU /E2qyeEA/y6mnl43duWvFG6X4gb3F2rofrI8kvw6XVe7qsWSwFqwPcAZ8txmhzv7JiIZn1i0eG8cY Gpqa7eP1nOjcTDqwhh08gw14bsZp/PiSHBzJ7vqCORHitGbdbTrKQmR8/ZHA5EELdVevipywzbGf7 iwRWyRPA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1taB3f-00000007Vfk-2PdJ; Tue, 21 Jan 2025 10:00:31 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1taB2M-00000007VBa-4C4N for linux-arm-kernel@lists.infradead.org; Tue, 21 Jan 2025 09:59:12 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id CB1E5106F; Tue, 21 Jan 2025 01:59:35 -0800 (PST) Received: from bogus (e133711.arm.com [10.1.196.55]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0E6783F740; Tue, 21 Jan 2025 01:59:05 -0800 (PST) Date: Tue, 21 Jan 2025 09:59:03 +0000 From: Sudeep Holla To: Viresh Kumar Cc: Vincent Guittot , Sudeep Holla , Alex =?iso-8859-1?Q?Benn=E9e?= , Bill Mills , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/3] firmware: arm_ffa: Setup of_node for ffa devices Message-ID: References: <0e863a4baea59865aff0d1b5657f548bc0aa8d2a.1737441631.git.viresh.kumar@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <0e863a4baea59865aff0d1b5657f548bc0aa8d2a.1737441631.git.viresh.kumar@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250121_015911_081645_A6A0F10C X-CRM114-Status: GOOD ( 10.26 ) 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 On Tue, Jan 21, 2025 at 12:26:39PM +0530, Viresh Kumar wrote: > Match and bind the of_node for the FFA device. I am bit confused and need more details than the above line 😄, because 1. We don't have any binding for FF-A and compatible "arm,ffa" is not yet defined 2. Even if we have binding, we will not have vm_id and UUID which are discoverable from the firmware 3. DT maintainers rejected the bindings when it was initially proposed as it is discoverable. If we need it for a valid reason, we need more info, this patch doesn't provide full picture to change their stance. I would like to add minimal binding not for vmid or UUID but for interrupts only. It is still WIP but I haven't made up my mind on how that should look. -- Regards, Sudeep