From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Zyngier Subject: Re: [PATCH v2] irqchip/gic-v3: Ignore disabled ITS nodes Date: Thu, 1 Feb 2018 17:23:46 +0000 Message-ID: <38dd5843-9290-28b2-8acb-aabb81acf00d@arm.com> References: <20180201170329.26916-1-sboyd@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:52782 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751567AbeBARXu (ORCPT ); Thu, 1 Feb 2018 12:23:50 -0500 In-Reply-To: <20180201170329.26916-1-sboyd@codeaurora.org> Content-Language: en-GB Sender: linux-arm-msm-owner@vger.kernel.org List-Id: linux-arm-msm@vger.kernel.org To: Stephen Boyd , Thomas Gleixner , Jason Cooper Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Stuart Yoder , Laurentiu Tudor , Greg Kroah-Hartman , Rajendra Nayak On 01/02/18 17:03, Stephen Boyd wrote: > On some platforms there's an ITS available but it's not enabled > because reading or writing the registers is denied by the > firmware. In fact, reading or writing them will cause the system > to reset. We could remove the node from DT in such a case, but > it's better to skip nodes that are marked as "disabled" in DT so > that we can describe the hardware that exists and use the status > property to indicate how the firmware has configured things. > > Cc: Stuart Yoder > Cc: Laurentiu Tudor > Cc: Greg Kroah-Hartman > Cc: Marc Zyngier > Cc: Rajendra Nayak > Signed-off-by: Stephen Boyd Queued, thanks Stephen. M. -- Jazz is not dead. It just smells funny...