linux-kernel - Re: [PATCH v6 10/14] arm64: dts: freescale: imx8qxp: Remove unnecessary clock related entries

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Message-ID: <2823c36d-efce-6c02-3b00-df1466c0d2bc@linaro.org>
Date:   Mon, 4 Jul 2022 10:06:39 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Viorel Suman <viorel.suman@....nxp.com>
Cc:     Viorel Suman <viorel.suman@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Dong Aisheng <aisheng.dong@....com>,
        Fabio Estevam <festevam@...il.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Stefan Agner <stefan@...er.ch>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        Abel Vesa <abelvesa@...nel.org>,
        Oliver Graute <oliver.graute@...oconnector.com>,
        Liu Ying <victor.liu@....com>,
        Mirela Rabulea <mirela.rabulea@....com>,
        Peng Fan <peng.fan@....com>, Ming Qian <ming.qian@....com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-input@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-rtc@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-watchdog@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v6 10/14] arm64: dts: freescale: imx8qxp: Remove
 unnecessary clock related entries

On 30/06/2022 21:48, Viorel Suman wrote:
> 
> The question context looks a bit shifted. The "clocks" and "clock-names"
> attributes are removed from a clock provider device.
> 
> The OS clock provider in this case is a client which uses some protocol
> to communicate with SCU via a messaging unit. There is no
> access to xtal clocks via the existing OS<->SCU communication protocol.

SCU does not need to access them via communication protocol. It's enough
that they are clock inputs, physical clocks being fed to your hardware
which you describe in the DTS.


Best regards,
Krzysztof