linux-kernel - Re: [PATCH v3 01/15] dt-bindings: soc: tegra-pmc: Add Tegra PMC clock bindings

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Message-ID: <20191206185800.GB20259@qmqm.qmqm.pl>
Date:   Fri, 6 Dec 2019 19:58:00 +0100
From:   Michał Mirosław <mirq-linux@...e.qmqm.pl>
To:     Sowjanya Komatineni <skomatineni@...dia.com>
Cc:     thierry.reding@...il.com, jonathanh@...dia.com, digetx@...il.com,
        mperttunen@...dia.com, gregkh@...uxfoundation.org,
        sboyd@...nel.org, tglx@...utronix.de, robh-dt@...nel.org,
        mark.rutland@....com, allison@...utok.net, pdeschrijver@...dia.com,
        pgaikwad@...dia.com, mturquette@...libre.com,
        horms-renesas@...ge.net.au, Jisheng.Zhang@...aptics.com,
        krzk@...nel.org, arnd@...db.de, spujar@...dia.com,
        josephl@...dia.com, vidyas@...dia.com, daniel.lezcano@...aro.org,
        mmaddireddy@...dia.com, markz@...dia.com,
        devicetree@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, alexios.zavras@...el.com,
        alsa-devel@...a-project.org
Subject: Re: [PATCH v3 01/15] dt-bindings: soc: tegra-pmc: Add Tegra PMC
 clock bindings

On Thu, Dec 05, 2019 at 06:48:41PM -0800, Sowjanya Komatineni wrote:
> Tegra PMC has clk_out_1, clk_out_2, clk_out_3 clocks and each of
> these clocks has mux and a gate as a part of PMC controller.
[...]
> --- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
> +++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
[...]
> +Clock consumer example:
> +	host1x@...00000 {
> +		...
> +		vi@...80000 {
> +			...
> +			assigned-clocks = <&pmc TEGRA_PMC_CLK_OUT_3_MUX>;
> +			assigned-clock-parents = <&tegra_car TEGRA210_CLK_EXTERN3>;
> +		};
> +		...
> +	};
> +	...
> +	i2c@...0c500 {
> +		cam_sensor {
> +			...
> +			clocks = <&pmc TEGRA_PMC_CLK_OUT_3>;
> +			clock-names = "mclk";
> +			...
> +		};
> +	};

The assigned-clocks should be in the cam_sensor node, unless vi device
also uses the clock.

Best Regards,
Michał Mirosław