parisc: led: Rewrite LED/LCD driver to utilizize Linux LED subsystem

Rewrite the whole driver and drop the own code to calculate load
average, disk and LAN load. Switch instead to use the in-kernel LED
subsystem, which gives us quite some advantages, e.g.
- existing triggers for heartbeat and disk/lan activity can be used
- users can configre the LEDs at will to any existing trigger via
  /sys/class/leds
- less overhead since we don't need to run own timers
- fully integrated in Linux and as such cleaner code.

Note that the driver now depends on CONFIG_LEDS_CLASS which has to
be built-in and not as module.

Signed-off-by: Helge Deller <deller@gmx.de>

1 files changed, 3 insertions, 6 deletions

diff --git a/arch/parisc/include/asm/led.h b/arch/parisc/include/asm/led.h
index 3409c883f1bb..0aea47eff48d 100644
--- a/arch/parisc/include/asm/led.h
+++ b/arch/parisc/include/asm/led.h
@@ -25,16 +25,13 @@
 #define LED_CMD_REG_NONE 0		/* NULL == no addr for the cmd register */
 
 /* register_led_driver() */
-int __init register_led_driver(int model, unsigned long cmd_reg, unsigned long data_reg);
+int register_led_driver(int model, unsigned long cmd_reg, unsigned long data_reg);
 
 #ifdef CONFIG_CHASSIS_LCD_LED
 /* writes a string to the LCD display (if possible on this h/w) */
-int lcd_print(const char *str);
+void lcd_print(const char *str);
 #else
-#define lcd_print(str)
+#define lcd_print(str) do { } while (0)
 #endif
 
-/* main LED initialization function (uses PDC) */ 
-int __init led_init(void);
-
 #endif /* LED_H */