Hello!
We are trying to optimize power usage on imx8ulp. According to AN13951 it is recommended to disable unused modules. Thus, we are trying to disable HIFI4 with API call in M33 code and it returns success:
UPOWER_PowerOffSwitches((upower_ps_mask_t)(kUPOWER_PS_HIFI4));
Than we are monitoring power consumption with another API call:
upwr_vtm_power_measure(PowerSwitchSel_HIFI4, UPOWER_DummyCallback);
upwr_poll_req_status(sg, &sgf, &err, result, 0);
And we observe that it is not 0 as we expect:
HIFI4_POWER: I=44mA
How can we turn off power switch and make sure it is actually disabled?
