From patchwork Mon Jan 18 04:11:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 12026429 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=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 251DDC433E6 for ; Mon, 18 Jan 2021 04:13:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E80A8224B8 for ; Mon, 18 Jan 2021 04:13:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732012AbhARENC (ORCPT ); Sun, 17 Jan 2021 23:13:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34564 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730993AbhAREM7 (ORCPT ); Sun, 17 Jan 2021 23:12:59 -0500 Received: from mail-pl1-x62c.google.com (mail-pl1-x62c.google.com [IPv6:2607:f8b0:4864:20::62c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4EFB4C0613C1 for ; Sun, 17 Jan 2021 20:12:19 -0800 (PST) Received: by mail-pl1-x62c.google.com with SMTP id d4so7932052plh.5 for ; Sun, 17 Jan 2021 20:12:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=dJSz008Gr3fMyHCiz6o58NLkvxxf8SsrpAa4i2B5A9Y=; b=lsrqoPBrRDbShsY2EoTnFVgI9pXnwxl02VqP5w3FhW5fQzc16+sBDocMJ8OyX2aLoI 0Tx0I5lflR0vERpEC14lV6hjWrwWa+GULn+I1VAB/j/ovtUeAfkmxUHqk1oe5diVmYO5 MuCbyArZqKwFk/mgaP6hn6zXn1dcBrj42a7ZPZX8mGQ9tMTsXUhleB6TQ9ZyORGF5C/N I8jUAXgyRMcmGp+W+PGqiW4n8tbsXatrPEBnJbhDRIb4pumnzrF8bpueoRbDGV/d3umv 8gsoE9O3KPQus6sg0HaLO09lrxjc3jUqv6H6WZ/HMrBB2/TTf5P8TUQ6WOVw6UgogcGR ZyrQ== 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:mime-version :content-transfer-encoding; bh=dJSz008Gr3fMyHCiz6o58NLkvxxf8SsrpAa4i2B5A9Y=; b=l/Ap+QWFWY7ESa+2IJrvYKK1fJjupcr7W/TbmtmSXxhQlN+M9fyFnrdRPDlEfNtE83 /LB37HCsrWM5kYPMIowTriNs58HQGfwrWhriCWOUXWRnYigIdmCpkWwFoCcknqVDu/Pk r8Kf7pgr9Wi7K3FsN7BqCtJjKFIx9A6nVNj3WtdjIzInL9mv5RLajAsWxdWApN82u6/W 4ex9jSNWi3gRLLF8/weJYUWHqVj+R2U/zmuAXi8oGAGRPP/ImoEl1n3j645bRzOdlxtS 3wYVKMbekbnIjuMBK/eY7F548p7GnTRjI5FERiVEX8/NhtMnNbmSAtmp1413xWl7JTsB AODw== X-Gm-Message-State: AOAM531kE/R/SFcO4uilOzIGOosWPqm+6L0IkvHHm18HGM5kDmPoJrgP GRoqes3y3i3v3luilU+90Toz X-Google-Smtp-Source: ABdhPJwJIIwOwn0dK83qSwMSm4RoQFAzyfF1XJ5YfGOfsmnCR7lJpFOG2cYzoMEk3RttK5GQpmeHnQ== X-Received: by 2002:a17:903:230b:b029:dd:7cf1:8c33 with SMTP id d11-20020a170903230bb02900dd7cf18c33mr24507515plh.31.1610943138692; Sun, 17 Jan 2021 20:12:18 -0800 (PST) Received: from localhost.localdomain ([103.77.37.182]) by smtp.gmail.com with ESMTPSA id h15sm6727319pja.4.2021.01.17.20.12.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 17 Jan 2021 20:12:17 -0800 (PST) From: Manivannan Sadhasivam To: mturquette@baylibre.com, sboyd@kernel.org, robh+dt@kernel.org, jassisinghbrar@gmail.com Cc: viresh.kumar@linaro.org, ulf.hansson@linaro.org, bjorn.andersson@linaro.org, agross@kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, Manivannan Sadhasivam Subject: [PATCH v3 0/5] Add APCS support for SDX55 Date: Mon, 18 Jan 2021 09:41:51 +0530 Message-Id: <20210118041156.50016-1-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org Hello, This series adds APCS mailbox and clock support for SDX55. The APCS IP in SDX55 provides IPC and clock functionalities. Hence, mailbox support is added to the "qcom-apcs-ipc-mailbox" driver and a dedicated clock driver "apcs-sdx55" is added. Also, the clock to the APCS block is coming from 3 different sources: 1. Board XO 2. Fixed rate GPLL0 3. A7 PLL First source is from crystal osc, second is from GCC and third one is a separate clock source. Hence, a dedicated clk driver is added for the A7 PLL as well. Apart from the mailbox support, another intention of this series is to add the CPUFreq support to SDX55 platform. Since there is no dedicated hardware IP in SDX55 to do CPUFreq duties, this platform makes use of the clock and regulators directly via cpufreq-dt driver. The trick here is attaching the power domain to cpudev. Usually the power domains for the target device is attached in the bus driver or in the dedicated device drivers. But in this case, there is no dedicated CPUFreq driver nor a bus driver. After discussing with Viresh, I concluded that A7 PLL driver might be the best place to do this! But this decision is subject to discussion, hence added Ulf and Viresh to this series. Thanks, Mani Changes in v3: * Incorporated review comments from Stephen for APCS clk driver and Rob for APCS DT binding Changes in v2: * Modified the max_register value as per the SDX55 IPC offset in mailbox driver. Manivannan Sadhasivam (5): dt-bindings: mailbox: Add binding for SDX55 APCS mailbox: qcom: Add support for SDX55 APCS IPC dt-bindings: clock: Add Qualcomm A7 PLL binding clk: qcom: Add A7 PLL support clk: qcom: Add SDX55 APCS clock controller support .../devicetree/bindings/clock/qcom,a7pll.yaml | 51 ++++++ .../mailbox/qcom,apcs-kpss-global.yaml | 33 ++++ drivers/clk/qcom/Kconfig | 17 ++ drivers/clk/qcom/Makefile | 2 + drivers/clk/qcom/a7-pll.c | 100 ++++++++++++ drivers/clk/qcom/apcs-sdx55.c | 149 ++++++++++++++++++ drivers/mailbox/qcom-apcs-ipc-mailbox.c | 7 +- 7 files changed, 358 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/clock/qcom,a7pll.yaml create mode 100644 drivers/clk/qcom/a7-pll.c create mode 100644 drivers/clk/qcom/apcs-sdx55.c