fiq_debugger: Add fiq_debugger.disable option

This change allows to use same kernel image with
different console options for uart and fiq_debugger.
If fiq_debugger.disable will be set to 1/y/Y,
fiq_debugger will not be initialized.

Change-Id: I71fda54f5f863d13b1437b1f909e52dd375d002d
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>

diff --git a/drivers/staging/android/fiq_debugger/fiq_debugger.c b/drivers/staging/android/fiq_debugger/fiq_debugger.c
index 0c558331a3d23b16e3045d3b570d92a1bfe77f80..b132cff14f01c8a3ca59271651269fac50c0faba 100644 (file)
--- a/drivers/staging/android/fiq_debugger/fiq_debugger.c
+++ b/drivers/staging/android/fiq_debugger/fiq_debugger.c
@@ -123,11 +123,13 @@ static bool initial_console_enable;
 #endif
 
 static bool fiq_kgdb_enable;
+static bool fiq_debugger_disable;
 
 module_param_named(no_sleep, initial_no_sleep, bool, 0644);
 module_param_named(debug_enable, initial_debug_enable, bool, 0644);
 module_param_named(console_enable, initial_console_enable, bool, 0644);
 module_param_named(kgdb_enable, fiq_kgdb_enable, bool, 0644);
+module_param_named(disable, fiq_debugger_disable, bool, 0644);
 
 #ifdef CONFIG_FIQ_DEBUGGER_WAKEUP_IRQ_ALWAYS_ON
 static inline
@@ -1230,6 +1232,10 @@ int fiq_debugger_uart_overlay(void)
 
 static int __init fiq_debugger_init(void)
 {
+       if (fiq_debugger_disable) {
+               pr_err("serial_debugger: disabled\n");
+               return -ENODEV;
+       }
 #if defined(CONFIG_FIQ_DEBUGGER_CONSOLE)
        fiq_debugger_tty_init();
 #endif