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author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-10-19 23:19:19 +0400 |
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committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-10-19 23:19:19 +0400 |
commit | e05dacd71db0a5da7c1a44bcaab2a8a240b9c233 (patch) | |
tree | 31382cf1c7d62c03126448affb2fc86e8c4aaa8b /arch/arm/mach-sa1100/assabet.c | |
parent | 3ab0b83bf6a1e834f4b884150d8012990c75d25d (diff) | |
parent | ddffeb8c4d0331609ef2581d84de4d763607bd37 (diff) | |
download | linux-e05dacd71db0a5da7c1a44bcaab2a8a240b9c233.tar.xz |
Merge commit 'v3.7-rc1' into stable/for-linus-3.7
* commit 'v3.7-rc1': (10892 commits)
Linux 3.7-rc1
x86, boot: Explicitly include autoconf.h for hostprogs
perf: Fix UAPI fallout
ARM: config: make sure that platforms are ordered by option string
ARM: config: sort select statements alphanumerically
UAPI: (Scripted) Disintegrate include/linux/byteorder
UAPI: (Scripted) Disintegrate include/linux
UAPI: Unexport linux/blk_types.h
UAPI: Unexport part of linux/ppp-comp.h
perf: Handle new rbtree implementation
procfs: don't need a PATH_MAX allocation to hold a string representation of an int
vfs: embed struct filename inside of names_cache allocation if possible
audit: make audit_inode take struct filename
vfs: make path_openat take a struct filename pointer
vfs: turn do_path_lookup into wrapper around struct filename variant
audit: allow audit code to satisfy getname requests from its names_list
vfs: define struct filename and have getname() return it
btrfs: Fix compilation with user namespace support enabled
userns: Fix posix_acl_file_xattr_userns gid conversion
userns: Properly print bluetooth socket uids
...
Diffstat (limited to 'arch/arm/mach-sa1100/assabet.c')
-rw-r--r-- | arch/arm/mach-sa1100/assabet.c | 89 |
1 files changed, 87 insertions, 2 deletions
diff --git a/arch/arm/mach-sa1100/assabet.c b/arch/arm/mach-sa1100/assabet.c index d673211f121c..6a7ad3c2a3fc 100644 --- a/arch/arm/mach-sa1100/assabet.c +++ b/arch/arm/mach-sa1100/assabet.c @@ -20,6 +20,8 @@ #include <linux/mtd/partitions.h> #include <linux/delay.h> #include <linux/mm.h> +#include <linux/leds.h> +#include <linux/slab.h> #include <video/sa1100fb.h> @@ -37,7 +39,7 @@ #include <asm/mach/map.h> #include <asm/mach/serial_sa1100.h> #include <mach/assabet.h> -#include <mach/mcp.h> +#include <linux/platform_data/mfd-mcp-sa11x0.h> #include <mach/irqs.h> #include "generic.h" @@ -386,7 +388,7 @@ static void __init map_sa1100_gpio_regs( void ) */ static void __init get_assabet_scr(void) { - unsigned long scr, i; + unsigned long uninitialized_var(scr), i; GPDR |= 0x3fc; /* Configure GPIO 9:2 as outputs */ GPSR = 0x3fc; /* Write 0xFF to GPIO 9:2 */ @@ -529,6 +531,89 @@ static void __init assabet_map_io(void) sa1100_register_uart(2, 3); } +/* LEDs */ +#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS) +struct assabet_led { + struct led_classdev cdev; + u32 mask; +}; + +/* + * The triggers lines up below will only be used if the + * LED triggers are compiled in. + */ +static const struct { + const char *name; + const char *trigger; +} assabet_leds[] = { + { "assabet:red", "cpu0",}, + { "assabet:green", "heartbeat", }, +}; + +/* + * The LED control in Assabet is reversed: + * - setting bit means turn off LED + * - clearing bit means turn on LED + */ +static void assabet_led_set(struct led_classdev *cdev, + enum led_brightness b) +{ + struct assabet_led *led = container_of(cdev, + struct assabet_led, cdev); + + if (b != LED_OFF) + ASSABET_BCR_clear(led->mask); + else + ASSABET_BCR_set(led->mask); +} + +static enum led_brightness assabet_led_get(struct led_classdev *cdev) +{ + struct assabet_led *led = container_of(cdev, + struct assabet_led, cdev); + + return (ASSABET_BCR & led->mask) ? LED_OFF : LED_FULL; +} + +static int __init assabet_leds_init(void) +{ + int i; + + if (!machine_is_assabet()) + return -ENODEV; + + for (i = 0; i < ARRAY_SIZE(assabet_leds); i++) { + struct assabet_led *led; + + led = kzalloc(sizeof(*led), GFP_KERNEL); + if (!led) + break; + + led->cdev.name = assabet_leds[i].name; + led->cdev.brightness_set = assabet_led_set; + led->cdev.brightness_get = assabet_led_get; + led->cdev.default_trigger = assabet_leds[i].trigger; + + if (!i) + led->mask = ASSABET_BCR_LED_RED; + else + led->mask = ASSABET_BCR_LED_GREEN; + + if (led_classdev_register(NULL, &led->cdev) < 0) { + kfree(led); + break; + } + } + + return 0; +} + +/* + * Since we may have triggers on any subsystem, defer registration + * until after subsystem_init. + */ +fs_initcall(assabet_leds_init); +#endif MACHINE_START(ASSABET, "Intel-Assabet") .atag_offset = 0x100, |