On Tuesday 14 April 2015 12:03:09 Michal Simek wrote: > Do not probe all serial drivers by of_serial.c which are using > device_type = "serial"; property. Only drivers which have valid > compatible strings listed in the driver should be probed. > > When PORT_UNKNOWN is setup probe will fail anyway. > > Arnd quotation about driver historical background: > "when I wrote that driver initially, the idea was that it would > get used as a stub to hook up all other serial drivers but after > that, the common code learned to create platform devices from DT" > > This patch fix the problem with on the system with xilinx_uartps and > 16550a where of_serial failed to register for xilinx_uartps and because > of irq_dispose_mapping() removed irq_desc. Then when xilinx_uartps was asking > for irq with request_irq() EINVAL is returned. > > Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx> > CC: <stable@xxxxxxxxxxxxxxx> > --- > Acked-by: Arnd Bergmann <arnd@xxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
