iwm_poll_bit
if (iwm_poll_bit(sc, IWM_CSR_GP_CNTRL,
err = iwm_poll_bit(sc, IWM_CSR_GP_CNTRL,
ready = iwm_poll_bit(sc, IWM_CSR_HW_IF_CONFIG_REG,
if (!iwm_poll_bit(sc, IWM_CSR_GP_CNTRL,
if (!iwm_poll_bit(sc, IWM_CSR_RESET,
int iwm_poll_bit(struct iwm_softc *, int, uint32_t, uint32_t, int);