[POWERPC] CPM_UART: Fix non-console initialisation

The cpm_uart driver is initialised incorrectly, if there is a frame buffer
console, and CONFIG_SERIAL_CPM_CONSOLE is defined. The driver fails to
call cpm_uart_init_portdesc() and set_lineif() in this case.

Signed-off-by: Kalle Pokki <[e-mail]>
Signed-off-by: Vitaly Bordug <[e-mail]>
Signed-off-by: Paul Mackerras <[e-mail]>

drivers/serial/cpm_uart/cpm_uart.h

···
 
 /* these are located in their respective files */
 void cpm_line_cr_cmd(int line, int cmd);
-int cpm_uart_init_portdesc(void);
+int __init cpm_uart_init_portdesc(void);
 int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con);
 void cpm_uart_freebuf(struct uart_cpm_port *pinfo);
 

drivers/serial/cpm_uart/cpm_uart_core.c

···
 		pr_info("cpm_uart: WARNING: no UART devices found on platform bus!\n");
 		pr_info(
 		"cpm_uart: the driver will guess configuration, but this mode is no longer supported.\n");
-#ifndef CONFIG_SERIAL_CPM_CONSOLE
-		ret = cpm_uart_init_portdesc();
-		if (ret)
-			return ret;
-#endif
+
+		/* Don't run this again, if the console driver did it already */
+		if (cpm_uart_nr == 0)
+			cpm_uart_init_portdesc();
 
 		cpm_reg.nr = cpm_uart_nr;
 		ret = uart_register_driver(&cpm_reg);
···
 			int con = cpm_uart_port_map[i];
 			cpm_uart_ports[con].port.line = i;
 			cpm_uart_ports[con].port.flags = UPF_BOOT_AUTOCONF;
+			if (cpm_uart_ports[con].set_lineif)
+				cpm_uart_ports[con].set_lineif(&cpm_uart_ports[con]);
 			uart_add_one_port(&cpm_reg, &cpm_uart_ports[con].port);
 		}
 

drivers/serial/cpm_uart/cpm_uart_cpm1.c

···
 }
 
 /* Setup any dynamic params in the uart desc */
-int cpm_uart_init_portdesc(void)
+int __init cpm_uart_init_portdesc(void)
 {
 	pr_debug("CPM uart[-]:init portdesc\n");