From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2F640CA9EAF for ; Thu, 24 Oct 2019 15:29:07 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F1DF02064A for ; Thu, 24 Oct 2019 15:29:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="NoclxGZw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F1DF02064A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=vkKX44KXYSyEChMVYW9K3HA/3cFHEPNB6m9OxqHI9Zc=; b=NoclxGZwTkfO2v mmc4jSRHD+gHSBxR8WsMlMCup4BUHbUzvFzjuz8TOMk3/wYuT5qQfWhTmhlZTiMGnzCeaOgL/Ydqf NesaX48ESDtTmzBHd6vsgJphagAQZCxojZN3Pu5ggUcyIBoLI1cFt18KGM7Ob+Jo+oYSMedgaPUvX GPlig4d2EnSAO1YBWNeqISDlsBVLWitiwbWLIAi1kxjl5CCfH7flN3iiRyjyVv0WN+yCGq37CMDFA P/ahF5ALyUnM7qFdObniR3Re+2ByVHlwBRCHPGPgacm7Frfl0r6inOBTD6MRjtRgysVfnszoOZNfi wp6HWAzu0ZnwZX+N3rOg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iNf2w-00016Q-EE; Thu, 24 Oct 2019 15:29:06 +0000 Received: from [217.140.110.172] (helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iNf2r-00015O-Si for linux-arm-kernel@lists.infradead.org; Thu, 24 Oct 2019 15:29:04 +0000 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 2ADD231F; Thu, 24 Oct 2019 08:28:51 -0700 (PDT) Received: from bogus (e107155-lin.cambridge.arm.com [10.1.196.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 23A5C3F71F; Thu, 24 Oct 2019 08:28:49 -0700 (PDT) Date: Thu, 24 Oct 2019 16:28:47 +0100 From: Sudeep Holla To: Ulf Hansson Subject: Re: [PATCH 04/13] of: base: Add of_get_cpu_state_node() to get idle states for a CPU node Message-ID: <20191024152847.GC11467@bogus> References: <20191010113937.15962-1-ulf.hansson@linaro.org> <20191010113937.15962-5-ulf.hansson@linaro.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20191010113937.15962-5-ulf.hansson@linaro.org> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191024_082903_276691_251E8C0D X-CRM114-Status: GOOD ( 11.99 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Lorenzo Pieralisi , linux-pm@vger.kernel.org, Stephen Boyd , linux-arm-msm@vger.kernel.org, Daniel Lezcano , "Rafael J . Wysocki" , Lina Iyer , Bjorn Andersson , Kevin Hilman , Rob Herring , Lina Iyer , Sudeep Holla , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Oct 10, 2019 at 01:39:28PM +0200, Ulf Hansson wrote: > The CPU's idle state nodes are currently parsed at the common cpuidle DT > library, but also when initializing data for specific CPU idle operations, > as in the PSCI cpuidle driver case and qcom-spm cpuidle case. > > To avoid open-coding, let's introduce of_get_cpu_state_node(), which takes > the device node for the CPU and the index to the requested idle state node, > as in-parameters. In case a corresponding idle state node is found, it > returns the node with the refcount incremented for it, else it returns > NULL. > > Moreover, for PSCI there are two options to describe the CPU's idle states > [1], either via a flattened description or a hierarchical layout. Hence, > let's take both options into account. > > [1] Documentation/devicetree/bindings/arm/psci.yaml > > Suggested-by: Sudeep Holla Reviewed-by: Sudeep Holla -- Regards, Sudeep _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel