This is more Linux question not so much HW.
We have custom i.MX6Q based and so far VDDARM_IN and VDDSOC_IN had been set to same 1.425V. Now there is need to set VDDSOC_IN to 1.375V, but leave VDDARM_IN to 1.425V.
In Linux device tree pmic voltage configured like this:
operating-points = <
/* kHz uV */
fsl,soc-operating-points = <
/* ARM kHz SOC-PU uV */
arm-supply = <&sw1c_reg>; /* SW1A/B/C combined */
soc-supply = <&sw2_reg>;
pu-supply = <®_pu>;
These settings set both VDDSOC_IN and VDDARM_IN voltages even If I change soc-operating points only. So how do I change only VDDSOC_IN if that's even possible with current system?