[PATCH] s390: 3215 driver.

Convert 3215 console driver to new channel subsystem driver

this adds support for the driver model to the 3215 driver. The console
is one of the biggest problems because the regular device detection
is now done at initcall time although we actually want full
support for channel attached console devices as early as possible.
con3215_init() now uses a special ccw_device_probe_console() function
to do an early initialization of a single device.

The main backdraw for users is that the console can no longer
be autodetected when not running under VM. LPAR or P390 users
with a channel attached console now have to specify
console_device=f00 as a kernel parameter.

Authors:
	Martin Schwidefsky <schwidefsky@de.ibm.com>
	Arnd Bergmann <arndb@de.ibm.com>

drivers/char/tty_io.c

@@ -2222,7 +2222,7 @@ void __init console_init(void)
 #ifdef CONFIG_TN3270_CONSOLE
 	tub3270_con_init();
 #endif
-#ifdef CONFIG_TN3215
+#ifdef CONFIG_TN3215_CONSOLE
 	con3215_init();
 #endif
 #ifdef CONFIG_SCLP_CONSOLE
@@ -2363,10 +2363,7 @@ void __init tty_init(void)
 #ifdef CONFIG_TN3270
 	tub3270_init();
 #endif
-#ifdef CONFIG_TN3215
-	tty3215_init();
-#endif
-#ifdef CONFIG_SCLP
+#ifdef CONFIG_SCLP_TTY
 	sclp_tty_init();
 #endif
 #ifdef CONFIG_A2232

drivers/s390/char/ctrlchar.c

@@ -9,6 +9,7 @@
 
 #include <linux/config.h>
 #include <linux/stddef.h>
+#include <asm/errno.h>
 #include <linux/sysrq.h>
 #include <linux/ctype.h>
 
@@ -20,7 +21,7 @@ static int ctrlchar_sysrq_key;
 static void
 ctrlchar_handle_sysrq(void *tty)
 {
-	handle_sysrq(ctrlchar_sysrq_key, NULL, tty);
+	handle_sysrq(ctrlchar_sysrq_key, NULL, (struct tty_struct *) tty);
 }
 
 static DECLARE_WORK(ctrlchar_work, ctrlchar_handle_sysrq, 0);
@@ -39,7 +40,7 @@ static DECLARE_WORK(ctrlchar_work, ctrlchar_handle_sysrq, 0);
  *         with CTRLCHAR_CTRL
  */
 unsigned int
-ctrlchar_handle(const char *buf, int len, struct tty_struct *tty)
+ctrlchar_handle(const unsigned char *buf, int len, struct tty_struct *tty)
 {
 	if ((len < 2) || (len > 3))
 		return CTRLCHAR_NONE;

drivers/s390/char/ctrlchar.h

@@ -10,7 +10,7 @@
 #include <linux/tty.h>
 
 extern unsigned int
-ctrlchar_handle(const char *buf, int len, struct tty_struct *tty);
+ctrlchar_handle(const unsigned char *buf, int len, struct tty_struct *tty);
 
 
 #define CTRLCHAR_NONE  (1 << 8)