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[188.155.201.27]) by smtp.gmail.com with ESMTPSA id by4-20020a0564021b0400b00418fc410299sm2335191edb.62.2022.04.02.05.16.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 02 Apr 2022 05:16:40 -0700 (PDT) Message-ID: <5e1b6c09-0a8f-f1d9-728b-90ffbaedae83@linaro.org> Date: Sat, 2 Apr 2022 14:16:39 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: [PATCH v3 1/2] dt-bindings: clock: convert rockchip,rk3188-cru.txt to YAML Content-Language: en-US To: Johan Jonker , Krzysztof Kozlowski , =?UTF-8?Q?Heiko_St=c3=bcbner?= , zhangqing@rock-chips.com, Stephen Boyd Cc: robh+dt@kernel.org, krzk+dt@kernel.org, mturquette@baylibre.com, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org References: <20220329111323.3569-1-jbx6244@gmail.com> <20220331225134.7A0A9C340ED@smtp.kernel.org> <3107512.vfdyTQepKt@diego> <7c786619-6fcf-21dd-8e5a-0ec67da2a63d@gmail.com> From: Krzysztof Kozlowski In-Reply-To: <7c786619-6fcf-21dd-8e5a-0ec67da2a63d@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/04/2022 13:45, Johan Jonker wrote: > > > On 4/2/22 13:41, Krzysztof Kozlowski wrote: >> On 01/04/2022 09:55, Heiko Stübner wrote: >>> Hi Stephen, >>> >>> Am Freitag, 1. April 2022, 00:51:32 CEST schrieb Stephen Boyd: >>>> Quoting Johan Jonker (2022-03-29 04:13:22) >>>>> diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3188-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3188-cru.yaml >>>>> new file mode 100644 >>>>> index 000000000..ddd7e46af >>>>> --- /dev/null >>>>> +++ b/Documentation/devicetree/bindings/clock/rockchip,rk3188-cru.yaml >>>>> @@ -0,0 +1,78 @@ >>>>> +# SPDX-License-Identifier: GPL-2.0 >>>>> +%YAML 1.2 >>>>> +--- >>>>> +$id: http://devicetree.org/schemas/clock/rockchip,rk3188-cru.yaml# >>>>> +$schema: http://devicetree.org/meta-schemas/core.yaml# >>>>> + >>>>> +title: Rockchip RK3188/RK3066 Clock and Reset Unit (CRU) >>>>> + >>>>> +maintainers: >>>>> + - Elaine Zhang >>>>> + - Heiko Stuebner >>>>> + >>>>> +description: | >>>>> + The RK3188/RK3066 clock controller generates and supplies clocks to various >>>>> + controllers within the SoC and also implements a reset controller for SoC >>>>> + peripherals. >>>>> + Each clock is assigned an identifier and client nodes can use this identifier >>>>> + to specify the clock which they consume. All available clocks are defined as >>>>> + preprocessor macros in the dt-bindings/clock/rk3188-cru.h and >>>>> + dt-bindings/clock/rk3066-cru.h headers and can be used in device tree sources. >>>>> + Similar macros exist for the reset sources in these files. >>>>> + There are several clocks that are generated outside the SoC. It is expected >>>>> + that they are defined using standard clock bindings with following >>>>> + clock-output-names: >>>>> + - "xin24m" - crystal input - required >>>>> + - "xin32k" - RTC clock - optional >>>>> + - "xin27m" - 27mhz crystal input on RK3066 - optional >>>>> + - "ext_hsadc" - external HSADC clock - optional >>>>> + - "ext_cif0" - external camera clock - optional >>>>> + - "ext_rmii" - external RMII clock - optional >>>>> + - "ext_jtag" - external JTAG clock - optional >>>> >>>> I'd expect all these clks here to be inputs to this node. >>> >>> The optional clocks are all part of a circular dependency. >>> >>> So for example xin32k normally is generated by the pmic and fed >>> back into the system, so to get xin32k, we need the pmic to probe, >>> which needs i2c, which in turn already needs the clock controller. >> >> Are you sure that xin32k (RTC) clock should be input to the clock >> controller? I would expect it is the input to the SoC RTC block, so >> there is no circular dependency. > > clk-rk3188.c: > > PNAME(mux_pll_p) = { "xin24m", "xin32k" }; Thanks, but that's not the answer whether it is an input to the clock controller. It's the answer how the driver implements this. :) Best regards, Krzysztof 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 21E02C433EF for ; Sat, 2 Apr 2022 12:16:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=djNuBwVsvl+LHTIO4z6QVmjQBoeh3vLRicUJdTI6Vf4=; b=zHMus/xQA6bNcv HcdTTGtAJVn6aftKId6Uka59N37c/0UfOczyQH5s50q4QswvUlwH1bchTV8pA7kHMsrREzcB1iWrf kFu5RvBnOqFCxsEUQR05JToCveuKL6VyFG8JfxbOhnZzTjJzjkZDsGQBAgNKhcDjJx6MOe7n50gkX EuJ26OMsTDBjh0tkLf8B2Wi69mdZg7M0OCeQz/CQxw/gdVlvNTgHIoJJWSFC7jr9OafaCFFomhb3I Qj893Zee0WF2iqEzIf59fMVLdDilDCapJITncfzo8mb/fLR1Ulb6VXU79Q1loGrQr4UnphdO7kdQ2 ljTMH/GMWU7LtCPScd8Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nacgS-008gxw-TU; Sat, 02 Apr 2022 12:16:48 +0000 Received: from mail-ed1-x52d.google.com ([2a00:1450:4864:20::52d]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nacgP-008gvV-C2 for linux-rockchip@lists.infradead.org; Sat, 02 Apr 2022 12:16:46 +0000 Received: by mail-ed1-x52d.google.com with SMTP id b24so5809373edu.10 for ; Sat, 02 Apr 2022 05:16:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=message-id:date:mime-version:user-agent:subject:content-language:to :cc:references:from:in-reply-to:content-transfer-encoding; bh=tMn5SFNOvtFJo+djtkMlHoY3ZjZs+JPd7szVA4qbR0Y=; b=Pbq/ZW7pvqgrAMKrviMVZe4Bu5I043VMiSjnc93BbRDEuBloRuz2YHKay8cyFWYQtj b9M8VQVyDNln+LyPr94C2m3TQUmwDCqQuXlpq5NtK3jdS1c3gyNaBSa1tm7bxNZPSz/5 jfNmGubEgRGt9TMc4/G29QDOcrViPofTHKy4md8UAjiK5iKPZT2PVJvbDi/zmLD7xlb6 /5wWpfTb9HXEuWLTBuo+eFkOnTLyNOBRTvZ4TgSyEIWx5y6Px41ypotky6iNGQ07/OA2 mfOKXHEiNnqyjmZPkhAJkQqqyOR6nRfMmlxeR9PqGw1Ch+nKr/5YIbXQ6kryFPQnTdOv yNgQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=tMn5SFNOvtFJo+djtkMlHoY3ZjZs+JPd7szVA4qbR0Y=; b=w19L2Tk6rrX6/PYPcIpj224Feoe8PeomVXBd6UNkVDWqjkyfueszzdsP7qBVScBDyU qRJ6jYsSgW1LGNTYvXq80dN0oPH8b/KuI6+8ZrTQn6KetA3sp32lj9vJ/iTDkcxG8vYa wY+te8UObE8Jso9rJAMhve7jcMdSLTaY1zNhw9ciiKMcEn7rH0l9Abp7EPlvWxQxevt+ WMU6rpRiZHikbxz0zCR6Vv10Vyc3JIopD46jI4TqLM6t8EhRTGZRqQEeEFicumSawMB5 6d+gtLTaEzr+W0WhqEaZHcSFdIyxNzDCkxMbgMf4gAkwYfBf5eLP5ODdwE3j0Qp+84HB BuLg== X-Gm-Message-State: AOAM530iOTvBKwQv8M49Zy7/Q9vBSD7Tjnm+6QtbmX3LwFw9gDF4BTkS rnCO4oDOCTP8GRajVWVGWuGWSg== X-Google-Smtp-Source: ABdhPJwvD68kVUcX+t7XPlpFYBOHkSMjj+wzKh++wVN9zNZNdR9qKez+wcEnMzzi99GmzWo/oy8K2A== X-Received: by 2002:a50:ee05:0:b0:419:39d9:ccd8 with SMTP id g5-20020a50ee05000000b0041939d9ccd8mr25171430eds.369.1648901800793; Sat, 02 Apr 2022 05:16:40 -0700 (PDT) Received: from [192.168.0.171] (xdsl-188-155-201-27.adslplus.ch. [188.155.201.27]) by smtp.gmail.com with ESMTPSA id by4-20020a0564021b0400b00418fc410299sm2335191edb.62.2022.04.02.05.16.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 02 Apr 2022 05:16:40 -0700 (PDT) Message-ID: <5e1b6c09-0a8f-f1d9-728b-90ffbaedae83@linaro.org> Date: Sat, 2 Apr 2022 14:16:39 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: [PATCH v3 1/2] dt-bindings: clock: convert rockchip,rk3188-cru.txt to YAML Content-Language: en-US To: Johan Jonker , Krzysztof Kozlowski , =?UTF-8?Q?Heiko_St=c3=bcbner?= , zhangqing@rock-chips.com, Stephen Boyd Cc: robh+dt@kernel.org, krzk+dt@kernel.org, mturquette@baylibre.com, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org References: <20220329111323.3569-1-jbx6244@gmail.com> <20220331225134.7A0A9C340ED@smtp.kernel.org> <3107512.vfdyTQepKt@diego> <7c786619-6fcf-21dd-8e5a-0ec67da2a63d@gmail.com> From: Krzysztof Kozlowski In-Reply-To: <7c786619-6fcf-21dd-8e5a-0ec67da2a63d@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220402_051645_457292_8B5A7726 X-CRM114-Status: GOOD ( 16.95 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; 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[188.155.201.27]) by smtp.gmail.com with ESMTPSA id by4-20020a0564021b0400b00418fc410299sm2335191edb.62.2022.04.02.05.16.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 02 Apr 2022 05:16:40 -0700 (PDT) Message-ID: <5e1b6c09-0a8f-f1d9-728b-90ffbaedae83@linaro.org> Date: Sat, 2 Apr 2022 14:16:39 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: [PATCH v3 1/2] dt-bindings: clock: convert rockchip,rk3188-cru.txt to YAML Content-Language: en-US To: Johan Jonker , Krzysztof Kozlowski , =?UTF-8?Q?Heiko_St=c3=bcbner?= , zhangqing@rock-chips.com, Stephen Boyd Cc: robh+dt@kernel.org, krzk+dt@kernel.org, mturquette@baylibre.com, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org References: <20220329111323.3569-1-jbx6244@gmail.com> <20220331225134.7A0A9C340ED@smtp.kernel.org> <3107512.vfdyTQepKt@diego> <7c786619-6fcf-21dd-8e5a-0ec67da2a63d@gmail.com> From: Krzysztof Kozlowski In-Reply-To: <7c786619-6fcf-21dd-8e5a-0ec67da2a63d@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220402_051645_458516_3E739C11 X-CRM114-Status: GOOD ( 18.10 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; 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