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Message-ID: <3325915.e9J7NaK4W3@diego>
Date:   Tue, 20 Dec 2022 18:32:06 +0100
From:   Heiko Stübner <heiko@...ech.de>
To:     Yuteng Zhong <zonyitoo@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Rob Herring <robh+dt@...nel.org>, Peter Geis <pgwipeout@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, DHDAXCW <lasstp5011@...il.com>
Subject: Re: [PATCH v2] arm64: dts: rockchip: Add RK3566 LubanCat 1

Am Dienstag, 20. Dezember 2022, 17:14:51 CET schrieb Krzysztof Kozlowski:
> On 20/12/2022 11:21, Yuteng Zhong wrote:
> > LubanCat 1 is a Rockchip RK3566 SBC based
> > is developed by EmbedFire Electronics Co., Ltd.
> > Mini Linux Card Type Cheap Computer Development Board
> 
> Please wrap commit message according to Linux coding style / submission
> process:
> https://elixir.bootlin.com/linux/v5.18-rc4/source/Documentation/process/submitting-patches.rst#L586
> 
> > +	rk809: pmic@20 {
> > +		compatible = "rockchip,rk809";
> > +		reg = <0x20>;
> > +		interrupt-parent = <&gpio0>;
> > +		interrupts = <RK_PA3 IRQ_TYPE_LEVEL_LOW>;
> > +		assigned-clocks = <&cru I2S1_MCLKOUT_TX>;
> > +		assigned-clock-parents = <&cru CLK_I2S1_8CH_TX>;
> > +		#clock-cells = <1>;
> > +		clock-names = "mclk";
> > +		clocks = <&cru I2S1_MCLKOUT_TX>;
> > +		pinctrl-names = "default";
> > +		pinctrl-0 = <&pmic_int>;
> > +		rockchip,system-power-controller;
> > +		#sound-dai-cells = <0>;
> > +		vcc1-supply = <&vcc3v3_sys>;
> > +		vcc2-supply = <&vcc3v3_sys>;
> > +		vcc3-supply = <&vcc3v3_sys>;
> > +		vcc4-supply = <&vcc3v3_sys>;
> > +		vcc5-supply = <&vcc3v3_sys>;
> > +		vcc6-supply = <&vcc3v3_sys>;
> > +		vcc7-supply = <&vcc3v3_sys>;
> > +		vcc8-supply = <&vcc3v3_sys>;
> > +		vcc9-supply = <&vcc3v3_sys>;
> > +		wakeup-source;
> > +
> > +		regulators {
> > +			vdd_logic: DCDC_REG1 {
> 
> No underscores in node names. Anything requires it?

looks like the answer is "it depends" :-)

When the regulator-framework searches for the node to get the init-data from
it uses the actual node-name or the regulator-compatible property [0]
to match against.

And going via regulator-compatible was the "old" way, already deprecated
before the yaml-conversion [1] and not even included

So matching against the node-name is the correct way to go and it's actually
part of the rk8xx-binding as well [2]


Hope that helps,
Heiko


[0] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/regulator/of_regulator.c#n477
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/Documentation/devicetree/bindings/regulator/regulator.txt?id=1914a996436b09186489da73b807e1df71259f67
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml#n84


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