From patchwork Sun Feb 9 18:34:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sibi Sankar X-Patchwork-Id: 11372213 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 79899109A for ; Sun, 9 Feb 2020 18:34:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5724B2080C for ; Sun, 9 Feb 2020 18:34:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="TR4iUTsK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727777AbgBISe2 (ORCPT ); Sun, 9 Feb 2020 13:34:28 -0500 Received: from mail26.static.mailgun.info ([104.130.122.26]:30957 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727413AbgBISe2 (ORCPT ); Sun, 9 Feb 2020 13:34:28 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1581273267; h=Content-Transfer-Encoding: MIME-Version: Message-Id: Date: Subject: Cc: To: From: Sender; bh=aBio5nz03nEeEcJwl1oNFkBeK2euxvmLESZKLdRwEqc=; b=TR4iUTsKc4+J8KC19VEfJ9TgPfKymh/iXYyBqhSl6DzdgaIFoO35I/2q39SN2hTrEe+rnGi6 qIRGL+wAG0IcQT18ICVmXUPHtObXtwljKoImWRlKDFP/KddaXX5uXQAlrhVWBU68KqvAx9ES Dpl5++8K4dvK8OisiZklSB0DEGY= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI5ZDFmMiIsICJsaW51eC1wbUB2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5e4050b2.7f81a23dcd88-smtp-out-n02; Sun, 09 Feb 2020 18:34:26 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 1A39BC447A2; Sun, 9 Feb 2020 18:34:26 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.0 Received: from blr-ubuntu-87.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: sibis) by smtp.codeaurora.org (Postfix) with ESMTPSA id 0EEFCC43383; Sun, 9 Feb 2020 18:34:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 0EEFCC43383 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=sibis@codeaurora.org From: Sibi Sankar To: robh+dt@kernel.org, georgi.djakov@linaro.org, evgreen@chromium.org Cc: bjorn.andersson@linaro.org, agross@kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, mark.rutland@arm.com, daidavid1@codeaurora.org, saravanak@google.com, mka@chromium.org, linux-pm@vger.kernel.org, Sibi Sankar Subject: [PATCH v3 0/6] Split SDM845 interconnect nodes and consolidate RPMh support Date: Mon, 10 Feb 2020 00:04:05 +0530 Message-Id: <20200209183411.17195-1-sibis@codeaurora.org> X-Mailer: git-send-email 2.22.1 MIME-Version: 1.0 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org While there are no current consumers of the SDM845 interconnect device in devicetree, take this opportunity to redefine the 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. This patches series extends the discussions[2][3] involving the SDM845 interconnect bindings by adding accompanying driver implementations using the split NoC devices. Some of the code used to support the SDM845 provider driver are refactored into common modules that can used by other RPMh based interconnect providers such as SC7180[4]. This patch series also updates existing sdm845 binding documentation to DT schema format using json-schema. v3: - Picked up Robs R-b for patch 1 - Fixup qcom,bcm-voter.yaml. comments (Rob) - Use qcom,bcm-voter instead of SoC specific compatible for SDM845 and SC7180 (Odelu/Sibi) - Fixup bindings check failures for qcom,sdm845.yaml - Fixup the misc bugs. comments (Evan/Sibi) - Fixup reg size for aggre1/2_noc v2: - Reorganized dt-binding patches - Fixed a bug that adds duplicate BCM node to voter (Georgi) - Addressed misc. comments (Georgi) v1: https://lkml.org/lkml/2019/12/16/15 [1]: https://lkml.org/lkml/2019/6/13/143 [2]: https://lkml.org/lkml/2019/7/19/1063 [3]: https://lkml.org/lkml/2019/10/16/1793 [4]: https://lkml.org/lkml/2019/11/26/389 David Dai (6): dt-bindings: interconnect: Convert qcom,sdm845 to DT schema dt-bindings: interconnect: Add YAML schemas for QCOM bcm-voter dt-bindings: interconnect: Update Qualcomm SDM845 DT bindings interconnect: qcom: Consolidate interconnect RPMh support interconnect: qcom: sdm845: Split qnodes into their respective NoCs arm64: dts: sdm845: Redefine interconnect provider DT nodes .../bindings/interconnect/qcom,bcm-voter.yaml | 45 + .../bindings/interconnect/qcom,sdm845.txt | 24 - .../bindings/interconnect/qcom,sdm845.yaml | 74 + arch/arm64/boot/dts/qcom/sdm845.dtsi | 65 +- drivers/interconnect/qcom/Kconfig | 13 +- drivers/interconnect/qcom/Makefile | 4 + drivers/interconnect/qcom/bcm-voter.c | 366 +++++ drivers/interconnect/qcom/bcm-voter.h | 27 + drivers/interconnect/qcom/icc-rpmh.c | 147 ++ drivers/interconnect/qcom/icc-rpmh.h | 149 +++ drivers/interconnect/qcom/sdm845.c | 1185 +++++++---------- .../dt-bindings/interconnect/qcom,sdm845.h | 263 ++-- 12 files changed, 1516 insertions(+), 846 deletions(-) create mode 100644 Documentation/devicetree/bindings/interconnect/qcom,bcm-voter.yaml delete mode 100644 Documentation/devicetree/bindings/interconnect/qcom,sdm845.txt create mode 100644 Documentation/devicetree/bindings/interconnect/qcom,sdm845.yaml create mode 100644 drivers/interconnect/qcom/bcm-voter.c create mode 100644 drivers/interconnect/qcom/bcm-voter.h create mode 100644 drivers/interconnect/qcom/icc-rpmh.c create mode 100644 drivers/interconnect/qcom/icc-rpmh.h