> > +#ifdef CONFIG_EARLY_PRINTK_INTEL_MID_SPI > > + if (info->port_type == ACPI_DBG2_SERIAL_PORT > > + && info->port_subtype == ACPI_DBG2_INTEL_MID_SPI > > + && info->register_count > 0) { > Is it ever going to be zero? NAK. No register base definition (buggy BIOS?) is meaningless for ACPI launched MID_SPI earlycon. Thanks and best regards/Lv Zheng -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html