From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752218AbdAYN43 (ORCPT ); Wed, 25 Jan 2017 08:56:29 -0500 Received: from foss.arm.com ([217.140.101.70]:37186 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752102AbdAYN40 (ORCPT ); Wed, 25 Jan 2017 08:56:26 -0500 Subject: Re: [PATCH] firmware: arm_scpi: Add hardware dependencies To: Jean Delvare References: <20170125143200.0554ad0f@endymion> <20170125145037.14a790c4@endymion> Cc: Sudeep Holla , LKML , "Jon Medhurst (Tixy)" From: Sudeep Holla Organization: ARM Message-ID: <7561802d-e9d3-2b82-35dc-465c06d6d4eb@arm.com> Date: Wed, 25 Jan 2017 13:56:23 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 MIME-Version: 1.0 In-Reply-To: <20170125145037.14a790c4@endymion> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 25/01/17 13:50, Jean Delvare wrote: > On Wed, 25 Jan 2017 13:38:47 +0000, Sudeep Holla wrote: >> On 25/01/17 13:32, Jean Delvare wrote: >>> With a name like that, I assume that the ARM SCPI protocol is only >>> useful on the ARM architectures. >>> >>> Signed-off-by: Jean Delvare >>> Fixes: 8f1498c03d15 ("firmware: arm_scpi: make it depend on MAILBOX instead of") >>> Cc: Sudeep Holla >>> Cc: Jon Medhurst (Tixy) >>> --- >>> Please correct me if I'm wrong. >> >> I won't say you are wrong but the reason why it's named arm_scpi is >> because the protocol was developed by ARM. It doesnn't mean only >> ARM/ARM64 needs to use it, it can be used on any architecture for >> inter-processor communication using any communication technique >> (currently mailbox is the only supported in the driver) > > OK, thanks for the clarification. In practice, what other architectures > are using it? > None, hence I didn't say you are wrong ;). I am fine having the check if it breaks for any other architecture with COMPILE_TEST. Also you have mentioned it fixes 8f1498c03d15, have you seen any regression with that commit ? If so, details in the commit would be good. -- Regards, Sudeep