Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

[linux-2.6-omap-h63xx.git] / drivers / input / serio / i8042.c

diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 13da06fd0b8f36cf27a77f4fe4ecf6a7c4e5dc16..592ff55b62d0684bdcee4e09c549e62ad62f4b8e 100644 (file)
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -12,7 +12,6 @@
 
 #include <linux/delay.h>
 #include <linux/module.h>
-#include <linux/moduleparam.h>
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
 #include <linux/init.h>
@@ -64,6 +63,12 @@ static unsigned int i8042_blink_frequency = 500;
 module_param_named(panicblink, i8042_blink_frequency, uint, 0600);
 MODULE_PARM_DESC(panicblink, "Frequency with which keyboard LEDs should blink when kernel panics");
 
+#ifdef CONFIG_X86
+static unsigned int i8042_dritek;
+module_param_named(dritek, i8042_dritek, bool, 0);
+MODULE_PARM_DESC(dritek, "Force enable the Dritek keyboard extension");
+#endif
+
 #ifdef CONFIG_PNP
 static int i8042_nopnp;
 module_param_named(nopnp, i8042_nopnp, bool, 0);
@@ -880,6 +885,20 @@ static long i8042_panic_blink(long count)
 
 #undef DELAY
 
+#ifdef CONFIG_X86
+static void i8042_dritek_enable(void)
+{
+       char param = 0x90;
+       int error;
+
+       error = i8042_command(&param, 0x1059);
+       if (error)
+               printk(KERN_WARNING
+                       "Failed to enable DRITEK extension: %d\n",
+                       error);
+}
+#endif
+
 #ifdef CONFIG_PM
 /*
  * Here we try to restore the original BIOS settings. We only want to
@@ -937,6 +956,12 @@ static int i8042_resume(struct platform_device *dev)
                return -EIO;
        }
 
+
+#ifdef CONFIG_X86
+       if (i8042_dritek)
+               i8042_dritek_enable();
+#endif
+
        if (i8042_mux_present) {
                if (i8042_set_mux_mode(1, NULL) || i8042_enable_mux_ports())
                        printk(KERN_WARNING
@@ -1155,6 +1180,11 @@ static int __devinit i8042_probe(struct platform_device *dev)
        if (error)
                return error;
 
+#ifdef CONFIG_X86
+       if (i8042_dritek)
+               i8042_dritek_enable();
+#endif
+
        if (!i8042_noaux) {
                error = i8042_setup_aux();
                if (error && error != -ENODEV && error != -EBUSY)
@@ -1166,7 +1196,6 @@ static int __devinit i8042_probe(struct platform_device *dev)
                if (error)
                        goto out_fail;
        }
-
 /*
  * Ok, everything is ready, let's register all serio ports
  */