spm_register_read
ctl_val = spm_register_read(drv, SPM_REG_SPM_CTL);
avs_ctl = spm_register_read(drv, SPM_REG_AVS_CTL);
vctl = spm_register_read(drv, SPM_REG_VCTL);
data0 = spm_register_read(drv, SPM_REG_PMIC_DATA_0);
data1 = spm_register_read(drv, SPM_REG_PMIC_DATA_1);
if (read_poll_timeout_atomic(spm_register_read,