Hi Rick, On 9 December 2016 at 18:12, Rick Bronson <r...@efn.org> wrote: > Hi All, > > How do I enable a particular regulator upon boot? I have two > identically set LDO entries: > > vccio_en: LDO_REG1 { > regulator-always-on; > regulator-boot-on; > regulator-min-microvolt = <3300000>; > regulator-max-microvolt = <3300000>; > regulator-name = "vccio_en"; > regulator-state-mem { > regulator-on-in-suspend; > regulator-suspend-microvolt = > <3300000>; > }; > }; > > vcc33_mic: LDO_REG2 { > regulator-always-on; > regulator-boot-on; > regulator-min-microvolt = <3300000>; > regulator-max-microvolt = <3300000>; > regulator-name = "vcc33_mic"; > regulator-state-mem { > regulator-on-in-suspend; > regulator-suspend-microvolt = > <3300000>; > }; > }; > > Yet one is enabled, the other disabled, any idea why?: > > => regulator status > Name Enabled uV mA Mode > ... > vccio_en enabled 3300000 - - > vcc33_mic disabled 3300000 - - > > And oddly, the uV values actually don't come from the DT but from > the rk808_ldo table in drivers/power/regulator/rk808.c
Do you think this is happening by PMIC settings (in the device) rather than through U-Boot? > > Any ideas? > > Thanks for any help. > There is a function called regulators_enable_boot_on() which enables all boot-on regulators that have a fixed voltage, but I don't think that is called with rockchip. Now that I look at it, I cannot see why I put the voltage values in the driver. They should come form DT. > Rick > > > Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot