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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>
This commit is contained in:
Tobias Mueller 2009-06-10 12:48:52 -07:00 committed by Richard Purdie
parent 7fd02170e2
commit 2216c6e83c
2 changed files with 7 additions and 1 deletions
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1
drivers/leds/Kconfig
View File

@ -75,6 +75,7 @@ config LEDS_ALIX2
depends on LEDS_CLASS && X86 && EXPERIMENTAL depends on LEDS_CLASS && X86 && EXPERIMENTAL
help help
This option enables support for the PCEngines ALIX.2 and ALIX.3 LEDs. 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 config LEDS_H1940
tristate "LED Support for iPAQ H1940 device" tristate "LED Support for iPAQ H1940 device"

7
drivers/leds/leds-alix2.c
View File

@ -14,7 +14,7 @@
static int force = 0; static int force = 0;
module_param(force, bool, 0444); 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 alix_led {
struct led_classdev cdev; struct led_classdev cdev;
@ -155,6 +155,11 @@ static int __init alix_led_init(void)
goto out; 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); pdev = platform_device_register_simple(KBUILD_MODNAME, -1, NULL, 0);
if (!IS_ERR(pdev)) { if (!IS_ERR(pdev)) {
ret = platform_driver_probe(&alix_led_driver, alix_led_probe); ret = platform_driver_probe(&alix_led_driver, alix_led_probe);