diff options
| -rw-r--r-- | drivers/input/serio/i8042-sparcio.h | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/drivers/input/serio/i8042-sparcio.h b/drivers/input/serio/i8042-sparcio.h index fce76812843b..c712c1fe0605 100644 --- a/drivers/input/serio/i8042-sparcio.h +++ b/drivers/input/serio/i8042-sparcio.h @@ -3,6 +3,7 @@ #define _I8042_SPARCIO_H #include <linux/of_device.h> +#include <linux/types.h> #include <asm/io.h> #include <asm/oplib.h> @@ -103,12 +104,25 @@ static struct platform_driver sparc_i8042_driver = { .remove = sparc_i8042_remove, }; -static int __init i8042_platform_init(void) +static bool i8042_is_mr_coffee(void) { - struct device_node *root = of_find_node_by_path("/"); - const char *name = of_get_property(root, "name", NULL); + struct device_node *root; + const char *name; + bool is_mr_coffee; + + root = of_find_node_by_path("/"); + + name = of_get_property(root, "name", NULL); + is_mr_coffee = name && !strcmp(name, "SUNW,JavaStation-1"); - if (name && !strcmp(name, "SUNW,JavaStation-1")) { + of_node_put(root); + + return is_mr_coffee; +} + +static int __init i8042_platform_init(void) +{ + if (i8042_is_mr_coffee()) { /* Hardcoded values for MrCoffee. */ i8042_kbd_irq = i8042_aux_irq = 13 | 0x20; kbd_iobase = ioremap(0x71300060, 8); @@ -136,10 +150,7 @@ static int __init i8042_platform_init(void) static inline void i8042_platform_exit(void) { - struct device_node *root = of_find_node_by_path("/"); - const char *name = of_get_property(root, "name", NULL); - - if (!name || strcmp(name, "SUNW,JavaStation-1")) + if (!i8042_is_mr_coffee()) platform_driver_unregister(&sparc_i8042_driver); } |