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=-3.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 C23F9C76196 for ; Fri, 19 Jul 2019 20:32:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8E8A120693 for ; Fri, 19 Jul 2019 20:32:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="a70ZBH4E"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="bfZWMo7/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388005AbfGSUcf (ORCPT ); Fri, 19 Jul 2019 16:32:35 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:56414 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728057AbfGSUcf (ORCPT ); Fri, 19 Jul 2019 16:32:35 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 3A065611D1; Fri, 19 Jul 2019 20:32:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1563568354; bh=nOzlrnBEamhN2JgiNCP88vDUSaUd5wB7eTA/ysgT7+Y=; h=From:To:Cc:Subject:Date:From; b=a70ZBH4EIBVxceERFjClWJxCJWOzK9nnbr1rAd7bNYiAQqPNW+NzZGnndqU5ZDTDb pXIMvUAYHrr/x2yih7yPPVOQcjT0zKJmKYEmkiDyQECiLiJt1yPfNQNmgwuOIFtM2H PTfRrCJw6WlmKwJlx5h5dyU5KEO23GVn+GxAS7U4= Received: from davidai-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: daidavid1@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 0C18060ACA; Fri, 19 Jul 2019 20:32:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1563568353; bh=nOzlrnBEamhN2JgiNCP88vDUSaUd5wB7eTA/ysgT7+Y=; h=From:To:Cc:Subject:Date:From; b=bfZWMo7/uLhZ5X3/fbuEjCzGmhOqeKzaKIkp37wmbcNKGHmCDMAhPPh9ndEORWLsZ VH7XfUlyVR2l4z7Ab+GNbScfUqP4IyXbTsC/aDf+RwkAscPXispicbGgihr/JtbjB8 pIvJdFVNJcMkFV+cofopcAMQzFJbeckHjhHSKKnI= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 0C18060ACA Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=daidavid1@codeaurora.org From: David Dai To: georgi.djakov@linaro.org, bjorn.andersson@linaro.org, robh+dt@kernel.org Cc: David Dai , evgreen@google.com, ilina@codeaurora.org, seansw@qti.qualcomm.com, elder@linaro.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 0/2] Redefine interconnect provider DT nodes for SDM845 Date: Fri, 19 Jul 2019 13:32:22 -0700 Message-Id: <1563568344-1274-1-git-send-email-daidavid1@codeaurora.org> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Redefine the SDM845 interconnect device nodes as the previous definitions of using a single child node under the apps_rsc device did not accurately capture the description of the hardware. The Network-On-Chip (NoC) interconnect devices should be represented in a manner akin to QCS404 platforms[1] where there is a separation of NoC devices and its RPM/RPMh counterparts. The bcm-voter devices are representing the RPMh devices that the interconnect providers need to communicate with and there can be more than one instance of the Bus Clock Manager (BCM) which can live under different instances of Resource State Coordinators (RSC). There are display use cases where consumers may need to target a different bcm-voter (Some display specific RSC) than the default, and there needs to be a way to represent this connection in devicetree. [1]: https://lkml.org/lkml/2019/6/13/143 David Dai (2): dt-bindings: interconnect: Update Qualcomm SDM845 DT bindings arm64: dts: sdm845: Redefine interconnect provider DT nodes .../bindings/interconnect/qcom,bcm-voter.txt | 32 ++++++++++++ .../bindings/interconnect/qcom,sdm845.txt | 40 ++++++++++---- arch/arm64/boot/dts/qcom/sdm845.dtsi | 61 ++++++++++++++++++++-- 3 files changed, 121 insertions(+), 12 deletions(-) create mode 100644 Documentation/devicetree/bindings/interconnect/qcom,bcm-voter.txt -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project