Merge branch 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers into asm-generic

Patches from David Howells <dhowells@redhat.com>:

This is to complete part of the UAPI disintegration for which the
preparatory patches were pulled recently.

Note that there are some fixup patches which are at the base of the
branch aimed at you, plus all arches get the asm-generic branch merged in too.

* 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate include/asm-generic
  UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
  c6x: remove c6x signal.h
  UAPI: Split compound conditionals containing __KERNEL__ in Arm64
  UAPI: Fix the guards on various asm/unistd.h files

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 86 insertions, 1 deletions

diff --git a/arch/arm/mach-sa1100/assabet.c b/arch/arm/mach-sa1100/assabet.c
index d673211f121..e1ccda6128e 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"
@@ -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,