Seems that I found the answer myself: https://git.pengutronix.de/cgit/barebox/commit/?id=d353ffd5c6e6d4cee6eee72726125c965a0814f0 regards, Christian On Wednesday, 23 August 2023, 16:53:04 CEST, Christian Eggers wrote: > Hi Ahmad, > > I am currently porting the vf610_adc driver from Linux to Barebox. > Must thing can be done similar as for the imx7_adc driver. > > I have one question about the reference voltage: > > static int imx7d_adc_enable(struct imx7d_adc *info) > { > ... > ret = regulator_get_voltage(info->vref); > ... > } > > What type of regulator do you use? I have declared a > fixed regulator in my device tree: > > reg_adc_vref_3v3: regulator-3v3-adc { > compatible = "regulator-fixed"; > regulator-name = "vref-3v3"; > regulator-min-microvolt = <3300000>; > regulator-max-microvolt = <3300000>; > }; > > &adc2 { > pinctrl-names = "default"; > pinctrl-0 = <&pinctrl_adc2>; > vref-supply = <®_adc_vref_3v3>; > ... > }; > > But it looks like the fixed regulator driver in Barebox > doesn't support reading the voltage (the Linux driver > reports the value from "regulator-min-microvolt")? > > regards, > Christian > >
