From patchwork Fri Jan 10 04:32:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Dai X-Patchwork-Id: 1220788 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.a=rsa-sha256 header.s=smtp header.b=b4c/+ygv; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 47v9995rYGz9sRQ for ; Fri, 10 Jan 2020 15:33:49 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731401AbgAJEdr (ORCPT ); Thu, 9 Jan 2020 23:33:47 -0500 Received: from mail25.static.mailgun.info ([104.130.122.25]:55871 "EHLO mail25.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731162AbgAJEdU (ORCPT ); Thu, 9 Jan 2020 23:33:20 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1578630799; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=FI/mpR0o5+xTEAnYT2bvYhcVqrPO4KjahbOFDjhFyz0=; b=b4c/+ygvBgRpLYPTT8LSs7u2gugEq+BMk5VZXUQWCg5cmuQ4WtuUhPJh+eHbfo89Hs8rq91s cMinVnmgvm8skEeUJp+oOZlF71KpRnw6GY2FdbWOIEocClyZsuolz3Womm2BTTtsNS4Lw6M9 8rvYNAumzCnIew1M1GWVuQGrjgA= X-Mailgun-Sending-Ip: 104.130.122.25 X-Mailgun-Sid: WyI1YmJiNiIsICJkZXZpY2V0cmVlQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== 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 5e17fe8a.7fb8349763b0-smtp-out-n01; Fri, 10 Jan 2020 04:33:14 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 8CF6EC447A2; Fri, 10 Jan 2020 04:33:14 +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 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) by smtp.codeaurora.org (Postfix) with ESMTPSA id 3C760C433A2; Fri, 10 Jan 2020 04:33:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 3C760C433A2 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=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, sboyd@kernel.org, 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 v2 0/6] Split SDM845 interconnect nodes and consolidate RPMh support Date: Thu, 9 Jan 2020 20:32:58 -0800 Message-Id: <1578630784-962-1-git-send-email-daidavid1@codeaurora.org> X-Mailer: git-send-email 1.9.1 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@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. 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 | 61 +- drivers/interconnect/qcom/Kconfig | 8 + drivers/interconnect/qcom/Makefile | 4 + drivers/interconnect/qcom/bcm-voter.c | 363 +++++++ drivers/interconnect/qcom/bcm-voter.h | 28 + drivers/interconnect/qcom/icc-rpmh.c | 158 +++ drivers/interconnect/qcom/icc-rpmh.h | 151 +++ drivers/interconnect/qcom/sdm845.c | 1132 ++++++++------------ include/dt-bindings/interconnect/qcom,sdm845.h | 263 ++--- 12 files changed, 1498 insertions(+), 813 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