leds: alix-leds2 fixed for Award BIOS

Add initialisation of GPIO ports for compatibility with boards with Award
BIOS (e.g.  ALIX.3D3).

Signed-off-by: Tobias Mueller <Tobias_Mueller@twam.info>
Reviewed-by: Constantin Baranov <const@mimas.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 9b60b6b..37e9118 100644 (file)
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -75,6 +75,7 @@ config LEDS_ALIX2
        depends on LEDS_CLASS && X86 && EXPERIMENTAL
        help
          This option enables support for the PCEngines ALIX.2 and ALIX.3 LEDs.
+         You have to set leds-alix2.force=1 for boards with Award BIOS.
 
 config LEDS_H1940
        tristate "LED Support for iPAQ H1940 device"

diff --git a/drivers/leds/leds-alix2.c b/drivers/leds/leds-alix2.c
index ddbd773..731d4ee 100644 (file)
--- a/drivers/leds/leds-alix2.c
+++ b/drivers/leds/leds-alix2.c
@@ -14,7 +14,7 @@
 
 static int force = 0;
 module_param(force, bool, 0444);
-MODULE_PARM_DESC(force, "Assume system has ALIX.2 style LEDs");
+MODULE_PARM_DESC(force, "Assume system has ALIX.2/ALIX.3 style LEDs");
 
 struct alix_led {
        struct led_classdev cdev;
@@ -155,6 +155,11 @@ static int __init alix_led_init(void)
                goto out;
        }
 
+       /* enable output on GPIO for LED 1,2,3 */
+       outl(1 << 6, 0x6104);
+       outl(1 << 9, 0x6184);
+       outl(1 << 11, 0x6184);
+
        pdev = platform_device_register_simple(KBUILD_MODNAME, -1, NULL, 0);
        if (!IS_ERR(pdev)) {
                ret = platform_driver_probe(&alix_led_driver, alix_led_probe);