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Message-ID: <e215fa4b-e777-454e-9b04-e704285050af@linaro.org>
Date: Thu, 4 Apr 2024 10:49:51 +0200
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Subject: Re: [PATCH 2/2] arm64: dts: rockchip: add Protonic MECSBC device-tree
To: Sascha Hauer <s.hauer@pengutronix.de>, Rob Herring <robh@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Conor Dooley <conor+dt@kernel.org>, Heiko Stuebner <heiko@sntech.de>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
 linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
 David Jander <david@protonic.nl>
References: <20240404-protonic-mecsbc-v1-0-ad5b42ade6c6@pengutronix.de>
 <20240404-protonic-mecsbc-v1-2-ad5b42ade6c6@pengutronix.de>
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From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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In-Reply-To: <20240404-protonic-mecsbc-v1-2-ad5b42ade6c6@pengutronix.de>
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On 04/04/2024 10:34, Sascha Hauer wrote:
> From: David Jander <david@protonic.nl>
> 
> MECSBC is a single board computer for blood analysis machines from
> RR-Mechatronics, designed and manufactured by Protonic Holland, based on
> the Rockchip RK3568 SoC.
> 
> Signed-off-by: David Jander <david@protonic.nl>
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

..

> +	vdd_gpu: regulator-vdd-gpu {
> +		compatible = "pwm-regulator";
> +		pwms = <&pwm1 0 5000 PWM_POLARITY_INVERTED>;
> +		regulator-name = "vdd_gpu";
> +		regulator-min-microvolt = <915000>;
> +		regulator-max-microvolt = <1000000>;
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-settling-time-up-us = <250>;
> +		pwm-dutycycle-range = <0 100>; /* dutycycle inverted 0% => 0.915V */
> +	};
> +
> +	vdd_npu: regulator-vdd-npu {
> +		compatible = "pwm-regulator";
> +		pwms = <&pwm2 0 5000 PWM_POLARITY_INVERTED>;
> +		regulator-name = "vdd_npu";
> +		regulator-min-microvolt = <915000>;
> +		regulator-max-microvolt = <1000000>;
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-settling-time-up-us = <250>;
> +		pwm-dutycycle-range = <0 100>; /* dutycycle inverted 0% => 0.915V */
> +	};
> +
> +	p3v3: p3v3-regulator {
> +		compatible = "regulator-fixed";
> +		regulator-name = "p3v3";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	p1v8: p1v8-regulator {

Please keep consistent naming - your other regulators are
"regulator-foo", not "foo-regulator". The "regulator-foo" is preferred
usually, because it groups devices nicely.

> +		compatible = "regulator-fixed";
> +		regulator-name = "p1v8";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +	};


..

> +&i2c3 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c3m0_xfer>;
> +	status = "okay";
> +
> +	tas2562: tas2562@4c {

Node names should be generic. See also an explanation and list of
examples (not exhaustive) in DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation

e.g. audio-codec, speaker, amplifier

> +		compatible = "ti,tas2562";
> +		reg = <0x4c>;
> +		#sound-dai-cells = <0>;
> +		shutdown-gpios = <&gpio1 RK_PD4 GPIO_ACTIVE_HIGH>;
> +		interrupt-parent = <&gpio1>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_tas2562>;
> +		interrupts = <RK_PD1 IRQ_TYPE_LEVEL_LOW>;
> +		ti,imon-slot-no = <0>;
> +	};
> +};
> +
> +&i2c5 {
> +	status = "okay";
> +
> +	tmp1075n@48 {

Node names should be generic. See also an explanation and list of
examples (not exhaustive) in DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation


> +		compatible = "ti,tmp1075";
> +		reg = <0x48>;
> +	};
> +
> +	pcf8563: rtc@51 {
> +		compatible = "nxp,pcf85363";
> +		reg = <0x51>;
> +		#clock-cells = <0>;
> +		clock-output-names = "rtcic_32kout";
> +	};
> +};
> +

..

> +&pcie3x2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pcie30x2m1_pins>;
> +	reset-gpios = <&gpio2 RK_PD6 GPIO_ACTIVE_HIGH>;
> +	vpcie3v3-supply = <&p3v3>;
> +	status = "okay";
> +};
> +
> +&pinctrl {
> +	ethernet {
> +		eth_phy1_rst: eth_phy1_rst {

No underscores in node names.


Best regards,
Krzysztof