From patchwork Mon Jan 4 08:11:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 356507 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 717D9C433E9 for ; Mon, 4 Jan 2021 08:12:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 420AD20702 for ; Mon, 4 Jan 2021 08:12:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726612AbhADIMU (ORCPT ); Mon, 4 Jan 2021 03:12:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57394 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726603AbhADIMR (ORCPT ); Mon, 4 Jan 2021 03:12:17 -0500 Received: from mail-pg1-x529.google.com (mail-pg1-x529.google.com [IPv6:2607:f8b0:4864:20::529]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 64C6BC061795 for ; Mon, 4 Jan 2021 00:11:37 -0800 (PST) Received: by mail-pg1-x529.google.com with SMTP id n10so18592826pgl.10 for ; Mon, 04 Jan 2021 00:11:37 -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=N1N/VRl7IYxshCXfWBMhv9L4GKmc3hy8weZHQ7rGDVA=; b=QghjExDFWmmI4IZigyH0QYWlIx8avgEsfnoIs9PxunNbsBTtE923wXAMJEJ+P8/91R D6t4C9+Fl9vqSVyfoJtajrm0tne9TxIU3OUCnZ9dLy6Fvo26BpDAse8U9ksRrUOPwLl7 gExBmitmk3f8rEZLr1a0EnZzJNGzi8qtod2CWAITbLOWjezObnqxSZr4cbCz8V76+A6B u4tyT2NFpiAjZa1pfG73A2Z+wTUym7bBHSoT4BcBkkY8VEQ/1THZTpwvCqm74ZXgZvIv /Der4OumT93SCJijOyH7oZiqRctlteV9GhRMdxrFHE+mw5VHwsxGCKNBGklCsXEnx86F MOlA== 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=N1N/VRl7IYxshCXfWBMhv9L4GKmc3hy8weZHQ7rGDVA=; b=QqljAJm54ANGaG6tzI9lrFiPa3XjjExojB5/jsRVkb8supAkqVYlGsXJ5+zgIytjMK mhopaKDLWbC9qNI9gnXczTp3idS62gXOInNQEz0710FKl2CIdcdioyXqM+K4E6uYN6GG spm8Ml6s1CY+DDmOjih7HQq2yOt5s0g/q29StqiPPTwGaT1v9T7A3eu35Ex7MDv7qsc/ kze2EO9Cdj1hyczt6RGkFGJrYDEvbFDb+m3LfzLDRlZsCBtl7abUSKbaRFYsbIhn5dW8 Z7kM7TBL1gixhAoCx6RDusLG8bJ9tqVCS8nXyl8gikkFJD/IMue6DXu1X0VAMIzXHDQH 6XIQ== X-Gm-Message-State: AOAM530fVca5RZEZn36yVHW14qEKs1O4qAMd72rB2c/9G8OWdcfitDfb GftmxyLiZXIDKKzWA5hKHH7OEksKl/wo X-Google-Smtp-Source: ABdhPJwBWRJhGyCA+bGdgK0mKkSL72v59XaeOdVINrKkcwTDtJKJKyRpAqgAIYgmNPrd78ZrHLSCiw== X-Received: by 2002:a62:2585:0:b029:1ab:7fb7:b965 with SMTP id l127-20020a6225850000b02901ab7fb7b965mr62847150pfl.2.1609747896658; Mon, 04 Jan 2021 00:11:36 -0800 (PST) Received: from localhost.localdomain ([103.77.37.160]) by smtp.gmail.com with ESMTPSA id n7sm55051339pfn.141.2021.01.04.00.11.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Jan 2021 00:11:36 -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 0/5] Add APCS support for SDX55 Date: Mon, 4 Jan 2021 13:41:20 +0530 Message-Id: <20210104081125.147300-1-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@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 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 | 59 +++++-- 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 | 5 + 7 files changed, 374 insertions(+), 9 deletions(-) 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