[PATCH] arm64: dts: rockchip: rk3399-nanopi-r4s: Disable removed devices

Chen-Yu Tsai
2026-05-05T17:29:13Z

While the design of the NanoPi R4S is based on the common NanoPi 4
family, it is trimmed down a lot.

Disable all the peripherals on the SoC that are not used, and delete
all the external components that are not present.

Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
---
.../boot/dts/rockchip/rk3399-nanopi-r4s.dtsi | 68 +++++++++++++++++++
1 file changed, 68 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dtsi
index 3a9a10f531bd..4274d1b6e80a 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dtsi
@@ -66,16 +66,41 @@ &emmc_phy {
status = "disabled";
};

+/* No USB type-C PD power manager */
+/delete-node/ &fusb0;
+
+&i2c1 {
+ status = "disabled";
+};
+
&i2c4 {
status = "disabled";
};

+&i2c7 {
+ status = "disabled";
+};
+
+&i2s2 {
+ status = "disabled";
+};
+
+&hdmi {
+ status = "disabled";
+};
+
+&hdmi_sound {
+ status = "disabled";
+};
+
&pcie0 {
num-lanes = <1>;
vpcie3v3-supply = <&vcc3v3_sys>;
};

&pinctrl {
+ /delete-node/ fusb30x;
+
gpio-leds {
/delete-node/ status-led-pin;

@@ -101,14 +126,21 @@ reset_button_pin: reset-button-pin {
};
};

+&pwm0 {
+ status = "disabled";
+};
+
&sdhci {
status = "disabled";
};

&sdio0 {
+ /delete-property/ mmc-pwrseq;
status = "disabled";
};

+/delete-node/ &sdio_pwrseq;
+
&u2phy0_host {
phy-supply = <&vdd_5v>;
};
@@ -119,12 +151,48 @@ &u2phy1_host {

&uart0 {
status = "disabled";
+
+ /delete-node/ bluetooth;
};

+&u2phy1_host {
+ status = "disabled";
+};
+
+&usb_host1_ehci {
+ status = "disabled";
+};
+
+&usb_host1_ohci {
+ status = "disabled";
+};
&usbdrd_dwc3_0 {
dr_mode = "host";
};

+/delete-node/ &vbus_typec;
+
&vcc3v3_sys {
vin-supply = <&vcc5v0_sys>;
};
+
+&vopb {
+ status = "disabled";
+};
+
+&vopb_mmu {
+ status = "disabled";
+};
+
+&vopl {
+ status = "disabled";
+};
+
+&vopl_mmu {
+ status = "disabled";
+};
+
+/delete-node/ &bt_host_wake_l;
+/delete-node/ &bt_reg_on_h;
+/delete-node/ &bt_wake_l;
+/delete-node/ &wifi_reg_on_h;
--
2.47.3