From patchwork Tue Jan 30 01:00:07 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Derek Basehore X-Patchwork-Id: 10191195 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 AEFEA60388 for ; Tue, 30 Jan 2018 01:00:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A1EFB2236A for ; Tue, 30 Jan 2018 01:00:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 93A5F28446; Tue, 30 Jan 2018 01:00:47 +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 48F302236A for ; Tue, 30 Jan 2018 01:00:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752477AbeA3BAZ (ORCPT ); Mon, 29 Jan 2018 20:00:25 -0500 Received: from mail-pf0-f193.google.com ([209.85.192.193]:39638 "EHLO mail-pf0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752446AbeA3BAW (ORCPT ); Mon, 29 Jan 2018 20:00:22 -0500 Received: by mail-pf0-f193.google.com with SMTP id e11so7073317pff.6 for ; Mon, 29 Jan 2018 17:00:22 -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=NtD8iQqiuLeeXtMT3jvIUna+Nl1h78pg7wcBpdWjg/VeIg2j75X/H6WTEq/HwDGSte LmIRcXReeU5ZJIU/uJIvukpV/Td8KYtzPj+IlWj9HDwsG1tzVBkSkKMnQ+Jt+853jszF BIHKeboWxc/peHuCLsn/r53k8mjMadJkbtcAE= 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=lSlDrw237zb5bHs3pC4M5a/py94SJPjVKWKyDkfIrDTzD4oqQHZ2EkvPnb9gPqyfLM xfBxtrPF25PvWvYtCMsPAfPnDMMfcE26uBXPhOY/gk+LkQw9FmK/2Rf2cK5kWYoh7m/N 14Xjr0ouxqYGrtYiRzr5uSZe0gjLiC3EyNYjM7ZFjjHA5Adlq8p7ouL4ZbiAGcIFWNAF bxqF2BZ31XLQnThj5wsl7qlRYU/iGKHCHlS/Kkj51pihRdSt6J/gqn8A9DewIkpVaQs1 gAE2mJhUXdbTfJjY1l8Ec5A1UB4zhkSzEhRmr09EOHLJUXQ3Gp0DBuqzGjj+/apTXX6M OaJQ== X-Gm-Message-State: AKwxytcNB8BASLGLSvIOMKQOI4JV/nSHw2C0XVA2aQAjRVL28rJFY5QB +BEj996l0jv5DC1JAQEXsS7Qxw== X-Google-Smtp-Source: AH8x224K3JTDsVhe3ArE3r3nuHxyG1JvfkycueUU2J4RADcPNYhG8+GkvOrBlO4OJRawIpsOvTz0nA== X-Received: by 10.99.120.8 with SMTP id t8mr13956787pgc.371.1517274022356; Mon, 29 Jan 2018 17:00:22 -0800 (PST) Received: from exogeni.mtv.corp.google.com ([2620:0:1000:1600:211e:5908:95bc:4888]) by smtp.gmail.com with ESMTPSA id c29sm36477492pfd.172.2018.01.29.17.00.21 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 29 Jan 2018 17:00:21 -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 v3 5/5] DT/arm, gic-v3: add collections-reset-on-suspend property Date: Mon, 29 Jan 2018 17:00:07 -0800 Message-Id: <20180130010007.256564-6-dbasehore@chromium.org> X-Mailer: git-send-email 2.16.0.rc1.238.g530d649a79-goog In-Reply-To: <20180130010007.256564-1-dbasehore@chromium.org> References: <20180130010007.256564-1-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