linux-kernel - Re: [PATCH v3 2/2] arm64: dts: rockchip: Add FriendlyElec NanoPi M5 support

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Message-Id: <DAS9BQ77MMNE.26Z2XFDOQDRBQ@cknow.org>
Date: Sat, 21 Jun 2025 15:48:42 +0200
From: "Diederik de Haas" <didi.debian@...ow.org>
To: "John Clark" <inindev@...il.com>, <heiko@...ech.de>
Cc: <robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
 <linux-arm-kernel@...ts.infradead.org>,
 <linux-rockchip@...ts.infradead.org>, <devicetree@...r.kernel.org>,
 <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 2/2] arm64: dts: rockchip: Add FriendlyElec NanoPi M5
 support

Hi,

On Sat Jun 21, 2025 at 2:49 PM CEST, John Clark wrote:
> Add device tree for FriendlyElec NanoPi M5 with Rockchip RK3576 SoC
> (4x Cortex-A72, 4x Cortex-A53, Mali-G52 MC3 GPU, 6 TOPS NPU). Enables
> basic booting and connectivity.
> ...
> diff --git a/arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts b/arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts
> new file mode 100644
> index 000000000000..c63be9060651
> --- /dev/null
> +++ b/arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts
> @@ -0,0 +1,999 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2025 FriendlyElec Computer Tech. Co., Ltd.
> + * Copyright (c) 2025 John Clark <inindev@...il.com>
> + */
> +
> +/dts-v1/;
> ...
> +&pcie0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pcie_m2_reset>;
> +	reset-gpios = <&gpio2 RK_PB4 GPIO_ACTIVE_HIGH>;
> +	vpcie3v3-supply = <&vcc_3v3_m2_keym>;
> +	status = "okay";
> +};
> +
> +&pinctrl {
> +	gpio-key {
> +		key1_pin: key1-pin {
> +			rockchip,pins = <1 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;
> +		};
> +	};
> +
> +	gpio-leds {
> +		sys_led_pin: sys-led-pin {
> +			rockchip,pins = <2 RK_PB3 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +		lan_led_pin: lan-led-pin {
> +			rockchip,pins = <2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +		wan_led_pin: wan-led-pin {
> +			rockchip,pins = <4 RK_PC5 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	gmac {
> +		gmac0_int: gmac0-int {
> +			rockchip,pins = <2 RK_PB1 RK_FUNC_GPIO &pcfg_pull_up>;
> +		};
> +		gmac0_rst: gmac0-rst {
> +			rockchip,pins = <2 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +		gmac1_int: gmac1-int {
> +			rockchip,pins = <3 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>;
> +		};
> +		gmac1_rst: gmac1-rst {
> +			rockchip,pins = <3 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	hdmi {
> +		hdmi_con_en: hdmi-con-en {
> +			rockchip,pins = <4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	headphone {
> +		hp_det: hp-det {
> +			rockchip,pins = <2 RK_PD6 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	hym8563 {
> +		hym8563_int: hym8563-int {
> +			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
> +		};
> +	};
> +
> +	pcie {
> +		pcie_m2_pwren: pcie-m2-pwren {
> +			rockchip,pins = <0 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +		pcie_m2_reset: pcie-m2-reset {
> +			rockchip,pins = <2 RK_PB4 RK_FUNC_GPIO &pcfg_pull_up>;
> +		};
> +	};
> +
> +	sdmmc {
> +		sd_s0_pwren: sd-s0-pwren {
> +			rockchip,pins = <0 RK_PB6 RK_FUNC_GPIO &pcfg_pull_up>;
> +		};
> +	};
> +
> +	usb {
> +		usb_host_pwren: usb-host-pwren {
> +			rockchip,pins = <0 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +		usb_otg0_pwren: usb-otg0-pwren {
> +			rockchip,pins = <0 RK_PD1 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +};

Consider using names/label which are (consistently) close to the labels
as used in the schematics.

ref: https://lore.kernel.org/linux-rockchip/5461462.0VBMTVartN@phil/

Cheers,
  Diederik

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