From patchwork Fri Jan 26 07:38:35 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Derek Basehore X-Patchwork-Id: 10185185 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 8D56E602C8 for ; Fri, 26 Jan 2018 07:39:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7B2C628D4B for ; Fri, 26 Jan 2018 07:39:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6F81329069; Fri, 26 Jan 2018 07:39:04 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 023F928D4B for ; Fri, 26 Jan 2018 07:39:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751480AbeAZHit (ORCPT ); Fri, 26 Jan 2018 02:38:49 -0500 Received: from mail-pf0-f196.google.com ([209.85.192.196]:42075 "EHLO mail-pf0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752073AbeAZHir (ORCPT ); Fri, 26 Jan 2018 02:38:47 -0500 Received: by mail-pf0-f196.google.com with SMTP id b25so7740107pfd.9 for ; Thu, 25 Jan 2018 23:38:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=RWu8XvIZNgh5dBYOmf90vSGCY/YXAeUVXYp7dGPNHxk=; b=XkU7n+vzSwEq/Sn0bYj+PiIogjHOggPBdSVO0nQGAYP70uMXN3ga5U0PmvM91rmhmU JBbwJcmeVPp5oKXlpInmYBtFZirG3n6SUwG7mu9mxqa6OwoZd2a3q5iRUABu2mv50GpO ctW75jQ1rLrtrkcuJUIKSw131keXAegggkc8Q= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=RWu8XvIZNgh5dBYOmf90vSGCY/YXAeUVXYp7dGPNHxk=; b=SPy29CBchyPqh2mTuEW5+BoVd0Ntx8e3DevWVyccPdPA9EdzLzayyExJmatFJhRi7W G7wV4s+aLZxsSyjzCqRfd30k3ASgIkkeqNsDMZBbxUVzNiIcksYBRa2rPgiZE6SPrapc l1N8q6t/qud4dLT0u5diGwY85fcBJZ8mGZKR3UhZWr30rokfeYPX8LDPvovuM4/Tzb4W 5Hr8qnATvKbc/11WThfzJsH3QCEz+QqqvNVb3atwptRPoBbNTAH0WW3O3wOsqmuoGt/H f2xR4QwVNSzRYu4r9i+sfxsd9gmCZ9D2R6BOIu90jgnarpGEMrxnaugXp+hp1qD2kp8c iVQw== X-Gm-Message-State: AKwxytd0QylB7WU5mILW5TQppJsCto0uCNw6I+XwEneoINrKuUX3uLyN hNOSQjL2TPkDx1Jf8Z9P2V7G9g== X-Google-Smtp-Source: AH8x227Uh7mqeU8arac6QxNjcWb7Sorb6yh90fUzCsYWzQ5BDXtNktrH4CYbOaoZlaxk6Wg2MgpkiQ== X-Received: by 10.99.184.25 with SMTP id p25mr5985809pge.96.1516952326857; Thu, 25 Jan 2018 23:38:46 -0800 (PST) Received: from exogeni.mtv.corp.google.com ([2620:0:1000:1600:211e:5908:95bc:4888]) by smtp.gmail.com with ESMTPSA id t22sm17856168pfi.118.2018.01.25.23.38.45 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 25 Jan 2018 23:38:46 -0800 (PST) From: Derek Basehore To: linux-kernel@vger.kernel.org Cc: Soby.Mathew@arm.com, sudeep.holla@arm.com, devicetree@vger.kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, linux-pm@vger.kernel.org, rafael.j.wysocki@intel.com, tglx@linutronix.de, briannorris@chromium.org, marc.zyngier@arm.com, Derek Basehore Subject: [PATCH v2 5/5] DT/arm, gic-v3: add collections-reset-on-suspend property Date: Thu, 25 Jan 2018 23:38:35 -0800 Message-Id: <20180126073835.16575-6-dbasehore@chromium.org> X-Mailer: git-send-email 2.16.0.rc1.238.g530d649a79-goog In-Reply-To: <20180126073835.16575-1-dbasehore@chromium.org> References: <20180126073835.16575-1-dbasehore@chromium.org> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This boolean property for the GIC-V3-ITS enables resending the MAP COLLECTIONS commands when resuming for when the state is reset on suspend. Signed-off-by: Derek Basehore --- Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt index a470147d4f14..adb958e046d2 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt @@ -81,6 +81,10 @@ Optional: - reset-on-suspend: Boolean property. Indicates that the ITS state is reset on suspend. The state is then saved on suspend and restored on resume. +- collections-reset-on-suspend : Boolean property. If the collections for the + ITS are stored internally instead of externally, the state will be lost if the + GIC loses power. Setting this enables the kernel to reset the collections + state on resume for this ITS node. The main GIC node must contain the appropriate #address-cells, #size-cells and ranges properties for the reg property of all ITS