From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 2CAF11E98F1 for ; Tue, 21 Jan 2025 09:59:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737453550; cv=none; b=HN8DJi7H8Fsn3JeJMJXFGL3lo+WqHEu30nMvOc3DFELjagy2rrJ5Vmvw8gRnU6unoy15ChUEcACna3GbfE7Ehfpf53UAQDJgOBFrf93tAIlvWRkqblYx89z68SBdsEPEpX6GI7wPySgaG2fZyFE1KDA2h3d4VA2gyOq42gUGhVc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737453550; c=relaxed/simple; bh=vq5gKyY71noQeNV8T5bUQGClY641QWMnqjJTfaGOf4Q=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=BKhakuMAiR1HYlwojmJpy3QuBsmTvVSb7Nysz23Z7owlFcLE3P9qS+DAeq6G+jOA70fttKjGUJXRPPJSrCa6hhlMKoSB0B87GEjoTbeVXQW/l7WejFgzrjmXCfXyqY+n0pHjNRw1yGobPVfvgyz4VjS4DwFWG54gGmtnH2sFWrA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com 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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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> 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