Hello Manuel, a few more things I noticed: On Tue, Jan 02, 2024 at 05:15:47PM +0100, Manuel Traut wrote: > From: Alexander Warnecke <awarnecke002@xxxxxxxxxxx> > > + leds { > + compatible = "gpio-leds"; > + > + pinctrl-names = "default"; > + pinctrl-0 = <&flash_led_en_h>; > + > + led-0 { > + gpios = <&gpio4 RK_PA5 GPIO_ACTIVE_HIGH>; > + color = <LED_COLOR_ID_WHITE>; > + function = LED_FUNCTION_FLASH; > + }; This LED is supplied by VCC5V_MIDU, so maybe this should be a regulator-led supplied by gpio (FLASH_LED_EN_H) controlled regulator-fixed named f_led which is in turn supplied by VCC5V_MIDU. https://megous.com/dl/tmp/9bf0d85d78946b5e.png > + }; > + > [...] > > + > + speaker_amp: speaker-amplifier { > + compatible = "simple-audio-amplifier"; > + pinctrl-names = "default"; > + pinctrl-0 = <&spk_ctl>; > + enable-gpios = <&gpio4 RK_PC2 GPIO_ACTIVE_HIGH>; > + sound-name-prefix = "Speaker Amplifier"; > + VCC-supply = <&vcc_bat>; > + }; > + > + vcc_3v3: vcc-3v3 { > + compatible = "regulator-fixed"; > + regulator-name = "vcc_3v3"; > + regulator-always-on; > + regulator-boot-on; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + vin-supply = <&vcc3v3_sys>; > + }; > + > + vcc3v3_minipcie: vcc3v3-minipcie { > + compatible = "regulator-fixed"; > + enable-active-high; > + gpio = <&gpio4 RK_PC3 GPIO_ACTIVE_HIGH>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pcie_pwren_h>; > + regulator-name = "vcc3v3_minipcie"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + vin-supply = <&vcc_sys>; This regulator is supplied by vcc_bat: https://megous.com/dl/tmp/4ec71a4a2aea9498.png > + }; > + > + vcc3v3_sd: vcc3v3-sd { > + compatible = "regulator-fixed"; > + gpio = <&gpio0 RK_PA5 GPIO_ACTIVE_HIGH>; > + pinctrl-names = "default"; > + pinctrl-0 = <&sdmmc_pwren_l>; > + regulator-name = "vcc3v3_sd"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + vin-supply = <&vcc3v3_sys>; > + }; > + > + vcc5v0_usb_host0: vcc5v0-usb-host0 { > + compatible = "regulator-fixed"; > + enable-active-high; > + gpio = <&gpio4 RK_PC4 GPIO_ACTIVE_HIGH>; > + pinctrl-names = "default"; > + pinctrl-0 = <&usb_host_pwren1_h>; > + regulator-name = "vcc5v0_usb_host0"; > + regulator-min-microvolt = <5000000>; > + regulator-max-microvolt = <5000000>; > + vin-supply = <&vcc5v_midu>; > + }; > + > + vcc5v0_usb_host2: vcc5v0-usb-host2 { > + compatible = "regulator-fixed"; > + enable-active-high; > + gpio = <&gpio4 RK_PC5 GPIO_ACTIVE_HIGH>; > + pinctrl-names = "default"; > + pinctrl-0 = <&usb_host_pwren2_h>; > + regulator-name = "vcc5v0_usb_host2"; > + regulator-min-microvolt = <5000000>; > + regulator-max-microvolt = <5000000>; > + vin-supply = <&vcc5v_midu>; > + }; > + > + vcc_bat: vcc-bat { > + compatible = "regulator-fixed"; > + regulator-name = "vcc_bat"; > + regulator-always-on; > + regulator-boot-on; > + }; > + > + vcc_sys: vcc-sys { > + compatible = "regulator-fixed"; > + regulator-name = "vcc_sys"; > + regulator-always-on; > + regulator-boot-on; > + vin-supply = <&vcc_bat>; > + }; > + > + vdd1v2_dvp: vdd1v2-dvp { > + compatible = "regulator-fixed"; > + regulator-name = "vdd1v2_dvp"; > + regulator-min-microvolt = <1200000>; > + regulator-max-microvolt = <1200000>; > + vin-supply = <&vcc_3v3>; > + /*enable-supply = <&vcc2v8_dvp>;*/ > + }; There's no vdd1v2_dvp in the schematic on the camera sensor connector, or elsewhere: https://megous.com/dl/tmp/fd95f003d8f3fbfb.png So I guess, you can drop this, entirely. Maybe it's VDD1V5_DVP but I don't think it needs to be described in DT, since it's pretty local to this camera sensor, and nothing else uses it. https://megous.com/dl/tmp/7fc384e196c5428f.png regards, o.