Hi Chukun, On Sunday, 25 August 2024 10:25:09 EDT Chukun Pan wrote: > Hi, > > > --- /dev/null > > +++ b/arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5.dts > > ... > > + leds: leds { > > + compatible = "gpio-leds"; > > Maybe there should be a blank line. > > > + work_led: work-led { > > + gpios = <&gpio0 RK_PB4 GPIO_ACTIVE_HIGH>; > > + linux,default-trigger = "heartbeat"; > > + }; > > + }; > > Is the color missing? Actually, after rechecking, this is wrong. There are 2 LEDs on &gpio4: - PB2: Green - PB1: Red I can set the green one as heartbeat and the red one as default-on. > > ... > > + vcc_3v3_rtc_s5: regulator-vcc-3v3-rtc-s5 { > > + compatible = "regulator-fixed"; > > + regulator-name = "vcc_3v3_rtc_s5"; > > + regulator-boot-on; > > + regulator-always-on; > > + regulator-min-microvolt = <3300000>; > > + regulator-max-microvolt = <3300000>; > > + vin-supply = <&vcc_5v0_sys>; > > + }; > > Missing blank line. > > > + vcc_1v8_s0: regulator-vcc-1v8-s0 { > > + compatible = "regulator-fixed"; > > + regulator-name = "vcc_1v8_s0"; > > + regulator-boot-on; > > + regulator-always-on; > > + regulator-min-microvolt = <1800000>; > > + regulator-max-microvolt = <1800000>; > > + vin-supply = <&vcc_1v8_s3>; > > + }; > > ... > > +&gmac0 { > > + phy-mode = "rgmii-rxid"; > > Can we use "rgmii-id" and remove tx_delay here? Indeed, that's better. > > ... > > +&sdmmc { > > + bus-width = <4>; > > + cap-mmc-highspeed; > > + cap-sd-highspeed; > > + disable-wp; > > + max-frequency = <200000000>; > > + no-sdio; > > + no-mmc; > > + non-removable; > > + sd-uhs-sdr104; > > + vmmc-supply = <&vcc_3v3_s3>; > > Indentation error. > > > + vqmmc-supply = <&vccio_sd_s0>; > > + status = "okay"; > > +}; > > ... > > Thanks, > Chukun