Introduce a led trigger for CPU activity and consolidate LED driver in ARM

144 lines not on this page · raw message

index 5884def..b782abd 100644
@@ -210,4 +210,19 @@ struct gpio_led_platform_data {
 struct platform_device *gpio_led_register_device(
 		int id, const struct gpio_led_platform_data *pdata);
 
+#ifdef CONFIG_LEDS_TRIGGER_CPU
+enum cpu_led_event {
+	CPU_LED_IDLE_START,	/* CPU enters idle */
+	CPU_LED_IDLE_END,	/* CPU idle ends */
+	CPU_LED_START,		/* Machine starts, especially resume */
+	CPU_LED_STOP,		/* Machine stops, especially suspend */
+	CPU_LED_HALTED,		/* Machine shutdown */
+};
+
+/* Use this routine to handle LEDs */
+extern void ledtrig_cpu(enum cpu_led_event evt);
+#else
+#define ledtrig_cpu(evt) do {} while (0)
+#endif
+
 #endif		/* __LINUX_LEDS_H_INCLUDED */

index 679b0b7..0f95be9 100644
@@ -55,8 +55,6 @@ static void __init cap9adk_init_early(void)
 	/* Initialize processor: 12 MHz crystal */
 	at91_initialize(12000000);
 
-	/* Setup the LEDs: USER1 and USER2 LED for cpu/timer... */
-	at91_init_leds(AT91_PIN_PA10, AT91_PIN_PA11);
 	/* ... POWER LED always on */
 	at91_set_gpio_output(AT91_PIN_PC29, 1);
 

@@ -359,6 +357,23 @@ static struct ac97c_platform_data cap9adk_ac97_data = {
 //	.reset_pin	= ... not connected
 };
 
+/*
+ * LEDs
+ */
+static struct gpio_led cap9adk_leds[] = {
+	{	/* D1 */
+		.name			= "led1",
+		.gpio			= AT91_PIN_PA10,
+		.active_low		= 1,
+		.default_trigger	= "heartbeat",
+	},
+	{	/* D2 */
+		.name			= "led2",
+		.gpio			= AT91_PIN_PA11,
+		.active_low		= 1,
+		.default_trigger	= "timer",
+	}
+};
 
 static void __init cap9adk_board_init(void)
 {

@@ -386,6 +401,8 @@ static void __init cap9adk_board_init(void)
 	at91_add_device_lcdc(&cap9adk_lcdc_data);
 	/* AC97 */
 	at91_add_device_ac97(&cap9adk_ac97_data);
+	/* LEDs */
+	at91_gpio_leds(cap9adk_leds, ARRAY_SIZE(cap9adk_leds));
 }
 
 MACHINE_START(AT91CAP9ADK, "Atmel AT91CAP9A-DK")

index 17654d5..0b2cdee 100644
@@ -48,9 +48,6 @@ static void __init csb337_init_early(void)
 	/* Initialize processor: 3.6864 MHz crystal */
 	at91_initialize(3686400);
 
-	/* Setup the LEDs */
-	at91_init_leds(AT91_PIN_PB0, AT91_PIN_PB1);
-
 	/* DBGU on ttyS0 */
 	at91_register_uart(0, 0, 0);
 

index 7c0313c..15cbbe4 100644
@@ -51,9 +51,6 @@ static void __init ecb_at91init_early(void)
 	/* Initialize processor: 18.432 MHz crystal */
 	at91_initialize(18432000);
 
-	/* Setup the LEDs */
-	at91_init_leds(AT91_PIN_PC7, AT91_PIN_PC7);
-
 	/* DBGU on ttyS0. (Rx & Tx only) */
 	at91_register_uart(0, 0, 0);
 

@@ -144,6 +141,18 @@ static struct spi_board_info __initdata ecb_at91spi_devices[] = {
 	},
 };
 
+/*
+ * LEDs
+ */
+static struct gpio_led ecb_leds[] = {
+	{	/* D1 */
+		.name			= "led1",
+		.gpio			= AT91_PIN_PC7,
+		.active_low		= 1,
+		.default_trigger	= "heartbeat",
+	}
+};
+
 static void __init ecb_at91board_init(void)
 {
 	/* Serial */

@@ -163,6 +172,9 @@ static void __init ecb_at91board_init(void)
 
 	/* SPI */
 	at91_add_device_spi(ecb_at91spi_devices, ARRAY_SIZE(ecb_at91spi_devices));
+
+	/* LEDs */
+	at91_gpio_leds(ecb_leds, ARRAY_SIZE(ecb_leds));
 }
 
 MACHINE_START(ECBAT91, "emQbit's ECB_AT91")

index 8252c72..efa8e55 100644
@@ -37,9 +37,6 @@ static void __init eco920_init_early(void)
 
 	at91_initialize(18432000);
 
-	/* Setup the LEDs */
-	at91_init_leds(AT91_PIN_PB0, AT91_PIN_PB1);
-
 	/* DBGU on ttyS0. (Rx & Tx only */
 	at91_register_uart(0, 0, 0);
 

@@ -95,6 +92,24 @@ static struct spi_board_info eco920_spi_devices[] = {
 	},
 };
 
+/*
+ * LEDs
+ */
+static struct gpio_led eco920_leds[] = {
+	{	/* D1 */
+		.name			= "led1",
+		.gpio			= AT91_PIN_PB0,
+		.active_low		= 1,
+		.default_trigger	= "heartbeat",
+	},
+	{	/* D2 */
+		.name			= "led2",
+		.gpio			= AT91_PIN_PB1,
+		.active_low		= 1,
+		.default_trigger	= "timer",
+	}
+};
+
 static void __init eco920_board_init(void)
 {
 	at91_add_device_serial();

@@ -125,6 +140,8 @@ static void __init eco920_board_init(void)
 	);
 
 	at91_add_device_spi(eco920_spi_devices, ARRAY_SIZE(eco920_spi_devices));
+	/* LEDs */
+	at91_gpio_leds(eco920_leds, ARRAY_SIZE(eco920_leds));
 }
 
 MACHINE_START(ECO920, "eco920")

index 4a17089..17a470b 100644
@@ -48,9 +48,6 @@ static void __init kafa_init_early(void)
 	/* Initialize processor: 18.432 MHz crystal */
 	at91_initialize(18432000);
 
-	/* Set up the LEDs */
-	at91_init_leds(AT91_PIN_PB4, AT91_PIN_PB4);
-
 	/* DBGU on ttyS0. (Rx & Tx only) */
 	at91_register_uart(0, 0, 0);
 

@@ -75,6 +72,18 @@ static struct at91_udc_data __initdata kafa_udc_data = {
 	.pullup_pin	= AT91_PIN_PB7,
 };
 
+/*
+ * LEDs
+ */
+static struct gpio_led kafa_leds[] = {
+	{	/* D1 */
+		.name			= "led1",
+		.gpio			= AT91_PIN_PB4,
+		.active_low		= 1,
+		.default_trigger	= "heartbeat",
+	},
+};
+
 static void __init kafa_board_init(void)
 {
 	/* Serial */

@@ -89,6 +98,8 @@ static void __init kafa_board_init(void)
 	at91_add_device_i2c(NULL, 0);
 	/* SPI */
 	at91_add_device_spi(NULL, 0);
+	/* LEDs */
+	at91_gpio_leds(kafa_leds, ARRAY_SIZE(kafa_leds));
 }
 
 MACHINE_START(KAFA, "Sperry-Sun KAFA")

index 9dc8d49..bee2a4e 100644
@@ -50,9 +50,6 @@ static void __init kb9202_init_early(void)
 	/* Initialize processor: 10 MHz crystal */
 	at91_initialize(10000000);
 
-	/* Set up the LEDs */
-	at91_init_leds(AT91_PIN_PC19, AT91_PIN_PC18);
-
 	/* DBGU on ttyS0. (Rx & Tx only) */
 	at91_register_uart(0, 0, 0);
 

@@ -112,6 +109,24 @@ static struct atmel_nand_data __initdata kb9202_nand_data = {
 	.partition_info	= nand_partitions,
 };
 
+/*
+ * LEDs
+ */
+static struct gpio_led kb9202_leds[] = {
+	{	/* D1 */
+		.name			= "led1",
+		.gpio			= AT91_PIN_PC19,
+		.active_low		= 1,
+		.default_trigger	= "heartbeat",
+	},
+	{	/* D2 */
+		.name			= "led2",
+		.gpio			= AT91_PIN_PC18,
+		.active_low		= 1,
+		.default_trigger	= "timer",
+	}
+};
+
 static void __init kb9202_board_init(void)
 {
 	/* Serial */

@@ -130,6 +145,8 @@ static void __init kb9202_board_init(void)
 	at91_add_device_spi(NULL, 0);
 	/* NAND */
 	at91_add_device_nand(&kb9202_nand_data);
+	/* LEDs */
+	at91_gpio_leds(kb9202_leds, ARRAY_SIZE(kb9202_leds));
 }
 
 MACHINE_START(KB9200, "KB920x")

index 6f08faa..8694b74 100644
@@ -50,9 +50,6 @@ static void __init dk_init_early(void)
 	/* Initialize processor: 18.432 MHz crystal */
 	at91_initialize(18432000);
 
-	/* Setup the LEDs */
-	at91_init_leds(AT91_PIN_PB2, AT91_PIN_PB2);
-
 	/* DBGU on ttyS0. (Rx & Tx only) */
 	at91_register_uart(0, 0, 0);
 

index 85bcccd..3a96ed3 100644
@@ -50,9 +50,6 @@ static void __init ek_init_early(void)
 	/* Initialize processor: 18.432 MHz crystal */
 	at91_initialize(18432000);
 
-	/* Setup the LEDs */
-	at91_init_leds(AT91_PIN_PB1, AT91_PIN_PB2);
-
 	/* DBGU on ttyS0. (Rx & Tx only) */
 	at91_register_uart(0, 0, 0);
 

index 4d3a02f..8c3a15a 100644
@@ -49,9 +49,6 @@ static void __init ek_init_early(void)
 	/* Initialize processor: 18.432 MHz crystal */
 	at91_initialize(18432000);
 
-	/* Setup the LEDs */
-	at91_init_leds(AT91_PIN_PA9, AT91_PIN_PA6);
-
 	/* DBGU on ttyS0. (Rx & Tx only) */
 	at91_register_uart(0, 0, 0);
 

@@ -184,6 +181,24 @@ static struct at91_mmc_data __initdata ek_mmc_data = {
 //	.vcc_pin	= ... not connected
 };
 
+/*
+ * LEDs
+ */
+static struct gpio_led ek_leds[] = {
+	{	/* D1 */
+		.name			= "led1",
+		.gpio			= AT91_PIN_PA9,
+		.active_low		= 1,
+		.default_trigger	= "heartbeat",
+	},
+	{	/* D2 */
+		.name			= "led2",
+		.gpio			= AT91_PIN_PA6,
+		.active_low		= 1,
+		.default_trigger	= "timer",
+	}
+};
+
 static void __init ek_board_init(void)
 {
 	/* Serial */

@@ -202,6 +217,8 @@ static void __init ek_board_init(void)
 	at91_add_device_mmc(0, &ek_mmc_data);
 	/* I2C */
 	at91_add_device_i2c(NULL, 0);
+	/* LEDs */
+	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 }
 
 MACHINE_START(SAM9_L9260, "Olimex SAM9-L9260")

index 5096a0e..4d7b6fa 100644
@@ -59,9 +59,6 @@ static void __init ek_init_early(void)
 	/* Initialize processor: 18.432 MHz crystal */
 	at91_initialize(18432000);
 
-	/* Setup the LEDs */
-	at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
-
 	/* DBGU on ttyS0. (Rx & Tx only) */
 	at91_register_uart(0, 0, 0);
 

index 95edcbd..9ac5c47 100644
@@ -58,9 +58,6 @@ static void __init yl9200_init_early(void)
 	/* Initialize processor: 18.432 MHz crystal */
 	at91_initialize(18432000);
 
-	/* Setup the LEDs D2=PB17 (timer), D3=PB16 (cpu) */
-	at91_init_leds(AT91_PIN_PB16, AT91_PIN_PB17);
-
 	/* DBGU on ttyS0. (Rx & Tx only) */
 	at91_register_uart(0, 0, 0);
 

index ed544a0..c2a7746 100644
@@ -200,7 +200,6 @@ struct at91_can_data {
 extern void __init at91_add_device_can(struct at91_can_data *data);
 
  /* LEDs */
-extern void __init at91_init_leds(u8 cpu_led, u8 timer_led);
 extern void __init at91_gpio_leds(struct gpio_led *leds, int nr);
 extern void __init at91_pwm_leds(struct gpio_led *leds, int nr);
 

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index 5c23450..3a12b6b 100644
@@ -36,7 +36,6 @@
 #include <asm/system.h>
 #include <mach/hardware.h>
 #include <asm/irq.h>
-#include <asm/leds.h>
 #include <asm/mach-types.h>
 #include <asm/hardware/arm_timer.h>
 #include <asm/hardware/icst.h>

@@ -437,44 +436,6 @@ struct clcd_board clcd_plat_data = {
 	.remove		= versatile_clcd_remove_dma,
 };
 
-#ifdef CONFIG_LEDS
-#define VA_LEDS_BASE (__io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_LED_OFFSET)
-
-void realview_leds_event(led_event_t ledevt)
-{
-	unsigned long flags;
-	u32 val;
-	u32 led = 1 << smp_processor_id();
-
-	local_irq_save(flags);
-	val = readl(VA_LEDS_BASE);
-
-	switch (ledevt) {
-	case led_idle_start:
-		val = val & ~led;
-		break;
-
-	case led_idle_end:
-		val = val | led;
-		break;
-
-	case led_timer:
-		val = val ^ REALVIEW_SYS_LED7;
-		break;
-
-	case led_halted:
-		val = 0;
-		break;
-
-	default:
-		break;
-	}
-
-	writel(val, VA_LEDS_BASE);
-	local_irq_restore(flags);
-}
-#endif	/* CONFIG_LEDS */
-
 /*
  * Where is the timer (VA)?
  */

index 5c83d1e..47ee3bc 100644
@@ -26,7 +26,6 @@
 #include <linux/io.h>
 
 #include <asm/setup.h>
-#include <asm/leds.h>
 
 #define AMBA_DEVICE(name,busid,base,plat)			\
 static struct amba_device name##_device = {			\

@@ -57,7 +56,6 @@ extern void __iomem *timer1_va_base;
 extern void __iomem *timer2_va_base;
 extern void __iomem *timer3_va_base;
 
-extern void realview_leds_event(led_event_t ledevt);
 extern void realview_timer_init(unsigned int timer_irq);
 extern int realview_flash_register(struct resource *res, u32 num);
 extern int realview_eth_register(const char *name, struct resource *res);

index 7a4e3b1..8bdd783 100644
@@ -30,7 +30,6 @@
 
 #include <mach/hardware.h>
 #include <asm/irq.h>
-#include <asm/leds.h>
 #include <asm/mach-types.h>
 #include <asm/pmu.h>
 #include <asm/pgtable.h>

@@ -455,9 +454,6 @@ static void __init realview_eb_init(void)
 		amba_device_register(d, &iomem_resource);
 	}
 
-#ifdef CONFIG_LEDS
-	leds_event = realview_leds_event;
-#endif
 	realview_reset = realview_eb_reset;
 }
 

index ad5671a..72bbe53 100644
@@ -30,7 +30,6 @@
 
 #include <mach/hardware.h>
 #include <asm/irq.h>
-#include <asm/leds.h>
 #include <asm/mach-types.h>
 #include <asm/pmu.h>
 #include <asm/pgtable.h>

@@ -350,9 +349,6 @@ static void __init realview_pb1176_init(void)
 		amba_device_register(d, &iomem_resource);
 	}
 
-#ifdef CONFIG_LEDS
-	leds_event = realview_leds_event;
-#endif
 	realview_reset = realview_pb1176_reset;
 }
 

index b43644b..e6eeffc 100644
@@ -30,7 +30,6 @@
 
 #include <mach/hardware.h>
 #include <asm/irq.h>
-#include <asm/leds.h>
 #include <asm/mach-types.h>
 #include <asm/pmu.h>
 #include <asm/pgtable.h>

@@ -352,9 +351,6 @@ static void __init realview_pb11mp_init(void)
 		amba_device_register(d, &iomem_resource);
 	}
 
-#ifdef CONFIG_LEDS
-	leds_event = realview_leds_event;
-#endif
 	realview_reset = realview_pb11mp_reset;
 }
 

index 763e8f3..f29c640 100644
@@ -29,7 +29,6 @@
 #include <linux/io.h>
 
 #include <asm/irq.h>
-#include <asm/leds.h>
 #include <asm/mach-types.h>
 #include <asm/pmu.h>
 #include <asm/pgtable.h>

@@ -302,9 +301,6 @@ static void __init realview_pba8_init(void)
 		amba_device_register(d, &iomem_resource);
 	}
 
-#ifdef CONFIG_LEDS
-	leds_event = realview_leds_event;
-#endif
 	realview_reset = realview_pba8_reset;
 }
 

index 363b0ab..61d30fa 100644
@@ -28,7 +28,6 @@
 #include <linux/io.h>
 
 #include <asm/irq.h>
-#include <asm/leds.h>
 #include <asm/mach-types.h>
 #include <asm/pmu.h>
 #include <asm/smp_twd.h>

@@ -385,9 +384,6 @@ static void __init realview_pbx_init(void)
 		amba_device_register(d, &iomem_resource);
 	}
 
-#ifdef CONFIG_LEDS
-	leds_event = realview_leds_event;
-#endif
 	realview_reset = realview_pbx_reset;
 }
 

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index 3169fa5..a617a8f 100644
@@ -37,10 +37,10 @@ static const struct {
 } versatile_leds[] = {
 	{ "versatile:0", "heartbeat", },
 	{ "versatile:1", "mmc0", },
-	{ "versatile:2", },
-	{ "versatile:3", },
-	{ "versatile:4", },
-	{ "versatile:5", },
+	{ "versatile:2", "cpu" },
+	{ "versatile:3", "cpu" },
+	{ "versatile:4", "cpu" },
+	{ "versatile:5", "cpu" },
 	{ "versatile:6", },
 	{ "versatile:7", },
 };

@@ -85,6 +85,11 @@ static int __init versatile_leds_init(void)
 		led->cdev.brightness_set = versatile_led_set;
 		led->cdev.brightness_get = versatile_led_get;
 		led->cdev.default_trigger = versatile_leds[i].trigger;
+		/* Some trigger data for CPU LEDs */
+		if (i >= 2 && i <= 5) {
+			/* This is the CPU number actually */
+			led->cdev.trigger_data = (void *) i - 2;
+		}
 		led->mask = BIT(i);
 
 		if (led_classdev_register(NULL, &led->cdev) < 0) {

index b89fb6d..5ebf45d 100644
@@ -181,27 +181,6 @@ static void __init ks8695_add_device_watchdog(void)
 }
 
 
-/* --------------------------------------------------------------------
- *  LEDs
- * -------------------------------------------------------------------- */
-
-#if defined(CONFIG_LEDS)
-short ks8695_leds_cpu = -1;
-short ks8695_leds_timer = -1;
-
-void __init ks8695_init_leds(u8 cpu_led, u8 timer_led)
-{
-	/* Enable GPIO to access the LEDs */
-	gpio_direction_output(cpu_led, 1);
-	gpio_direction_output(timer_led, 1);
-
-	ks8695_leds_cpu	  = cpu_led;
-	ks8695_leds_timer = timer_led;
-}
-#else
-void __init ks8695_init_leds(u8 cpu_led, u8 timer_led) {}
-#endif
-
 /* -------------------------------------------------------------------- */
 
 /*

index 85a3c9a..1e6594a 100644
@@ -18,11 +18,6 @@ extern void __init ks8695_add_device_wan(void);
 extern void __init ks8695_add_device_lan(void);
 extern void __init ks8695_add_device_hpna(void);
 
- /* LEDs */
-extern short ks8695_leds_cpu;
-extern short ks8695_leds_timer;
-extern void __init ks8695_init_leds(u8 cpu_led, u8 timer_led);
-
  /* PCI */
 #define KS8695_MODE_PCI		0
 #define KS8695_MODE_MINIPCI	1

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index ac2873c..36b6b87 100644
@@ -13,7 +13,6 @@
 
 #include <asm/setup.h>
 #include <asm/mach-types.h>
-#include <asm/leds.h>
 #include <asm/param.h>
 
 #include <asm/mach/map.h>

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index 291d22b..fb9c635 100644
@@ -19,7 +19,6 @@
 #include <net/dsa.h>
 #include <asm/mach-types.h>
 #include <asm/gpio.h>
-#include <asm/leds.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/pci.h>
 #include <mach/orion5x.h>

index 3f02362..f4d64e6 100644
@@ -20,7 +20,6 @@
 #include <net/dsa.h>
 #include <asm/mach-types.h>
 #include <asm/gpio.h>
-#include <asm/leds.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/pci.h>
 #include <mach/orion5x.h>

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index ad2eba9..0c5d1d2 100644
@@ -22,7 +22,6 @@
 #include <net/dsa.h>
 #include <asm/mach-types.h>
 #include <asm/gpio.h>
-#include <asm/leds.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/pci.h>
 #include <mach/orion5x.h>

index 77315b9..0ee6af6 100644
@@ -225,6 +225,23 @@ void cm_control(u32 mask, u32 set)
 
 EXPORT_SYMBOL(cm_control);
 
+/**
+ * cm_read - read the CM_CTRL register.
+ */
+u32 cm_read(void)
+{
+	unsigned long flags;
+	u32 val = 0;
+
+	spin_lock_irqsave(&cm_lock, flags);
+	val = readl(CM_CTRL);
+	spin_unlock_irqrestore(&cm_lock, flags);
+
+	return val;
+}
+
+EXPORT_SYMBOL(cm_read);
+
 /*
  * We need to stop things allocating the low memory; ideally we need a
  * better implementation of GFP_DMA which does not assume that DMA-able

index 445d57a..3731508 100644
@@ -2,6 +2,7 @@
  * update the core module control register.
  */
 void cm_control(u32, u32);
+u32 cm_read(void);
 
 #define CM_CTRL_LED			(1 << 0)
 #define CM_CTRL_nMBDET			(1 << 1)

index 0ee6af6..bba9fe2 100644
@@ -28,7 +28,6 @@
 #include <asm/irq.h>
 #include <mach/cm.h>
 #include <asm/system.h>
-#include <asm/leds.h>
 #include <asm/mach/time.h>
 #include <asm/pgtable.h>
 

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index 61fef91..bafc325 100644
@@ -17,7 +17,6 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
-#include <asm/leds.h>
 #include <asm/hardware/clps7111.h>
 
 extern void clps711x_setup_timer(void);

@@ -29,7 +28,6 @@ static irqreturn_t
 p720t_timer_interrupt(int irq, void *dev_id)
 {
 	struct pt_regs *regs = get_irq_regs();
-	do_leds();
 	xtime_update(1);
 #ifndef CONFIG_SMP
 	update_process_times(user_mode(regs));

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index d581ef0..d79fe79 100644
@@ -25,7 +25,6 @@
 
 #include <mach/hardware.h>
 #include <asm/irq.h>
-#include <asm/leds.h>
 #include <asm/hardware/clps7111.h>
 
 #include <asm/mach/time.h>

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index 0b29315..c026efa 100644
@@ -10,7 +10,6 @@
 #include <linux/io.h>
 #include <asm/hardware/dec21285.h>
 #include <mach/hardware.h>
-#include <asm/leds.h>
 #include <asm/mach-types.h>
 
 static inline void arch_idle(void)

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deleted file mode 100644
index bbe4d5f..0000000
@@ -1,32 +0,0 @@
-/*
- * linux/arch/arm/mach-pxa/leds.c
- *
- * xscale LEDs dispatcher
- *
- * Copyright (C) 2001 Nicolas Pitre
- *
- * Copyright (c) 2001 Jeff Sutherland, Accelent Systems Inc.
- */
-#include <linux/compiler.h>
-#include <linux/init.h>
-
-#include <asm/leds.h>
-#include <asm/mach-types.h>
-
-#include "leds.h"
-
-static int __init
-pxa_leds_init(void)
-{
-	if (machine_is_lubbock())
-		leds_event = lubbock_leds_event;
-	if (machine_is_mainstone())
-		leds_event = mainstone_leds_event;
-	if (machine_is_pxa_idp())
-		leds_event = idp_leds_event;
-
-	leds_event(led_start);
-	return 0;
-}
-
-core_initcall(pxa_leds_init);

deleted file mode 100644
index 7f0dfe0..0000000
@@ -1,13 +0,0 @@
-/*
- * arch/arm/mach-pxa/leds.h
- *
- * Copyright (c) 2001 Jeff Sutherland, Accelent Systems Inc.
- *
- * blinky lights for various PXA-based systems:
- *
- */
-
-extern void idp_leds_event(led_event_t evt);
-extern void lubbock_leds_event(led_event_t evt);
-extern void mainstone_leds_event(led_event_t evt);
-extern void trizeps4_leds_event(led_event_t evt);

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index e3bb806..a65ef40 100644
@@ -29,7 +29,6 @@
 #include <linux/platform_device.h>
 
 #include <asm/system.h>
-#include <asm/leds.h>
 #include <asm/mach-types.h>
 
 #include <asm/irq.h>

index 0c8aad4..4385793 100644
@@ -26,7 +26,6 @@
 
 #include <asm/system.h>
 #include <mach/hardware.h>
-#include <asm/leds.h>
 #include <asm/mach/time.h>
 #include <asm/errno.h>
 

index cb7fb1a..e1c764a 100644
@@ -30,9 +30,10 @@
 #include <linux/input.h>
 #include <linux/i2c/tps65010.h>
 #include <linux/smc91x.h>
+#include <linux/leds.h>
+#include <linux/gpio.h>
 
 #include <mach/hardware.h>
-#include <asm/gpio.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>

@@ -331,6 +332,32 @@ static struct platform_device h2_lcd_device = {
 	.id		= -1,
 };
 
+static struct gpio_led h2_gpio_led_pins[] = {
+	{
+		.name		= "h2:red",
+		.default_trigger = "heartbeat",
+		.gpio		= 3,
+	},
+	{
+		.name		= "h2:green",
+		.default_trigger = "cpu",
+		.gpio		= OMAP_MPUIO(4),
+	},
+};
+
+static struct gpio_led_platform_data h2_gpio_led_data = {
+	.leds		= h2_gpio_led_pins,
+	.num_leds	= ARRAY_SIZE(h2_gpio_led_pins),
+};
+
+static struct platform_device h2_gpio_leds = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &h2_gpio_led_data,
+	},
+};
+
 static struct platform_device *h2_devices[] __initdata = {
 	&h2_nor_device,
 	&h2_nand_device,

@@ -338,6 +365,7 @@ static struct platform_device *h2_devices[] __initdata = {
 	&h2_irda_device,
 	&h2_kp_device,
 	&h2_lcd_device,
+	&h2_gpio_leds,
 };
 
 static void __init h2_init_smc91x(void)

@@ -444,6 +472,10 @@ static void __init h2_init(void)
 	omap_cfg_reg(E19_1610_KBR4);
 	omap_cfg_reg(N19_1610_KBR5);
 
+	/* GPIO based LEDs */
+	omap_cfg_reg(P18_1610_GPIO3);
+	omap_cfg_reg(MPUIO4);
+
 	platform_add_devices(h2_devices, ARRAY_SIZE(h2_devices));
 	omap_board_config = h2_config;
 	omap_board_config_size = ARRAY_SIZE(h2_config);

index 31f3487..ec9cabb 100644
@@ -30,11 +30,12 @@
 #include <linux/spi/spi.h>
 #include <linux/i2c/tps65010.h>
 #include <linux/smc91x.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
 
 #include <asm/setup.h>
 #include <asm/page.h>
 #include <mach/hardware.h>
-#include <asm/gpio.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>

@@ -344,6 +345,32 @@ static struct spi_board_info h3_spi_board_info[] __initdata = {
 	},
 };
 
+static struct gpio_led h3_gpio_led_pins[] = {
+	{
+		.name		= "h3:red",
+		.default_trigger = "heartbeat",
+		.gpio		= 3,
+	},
+	{
+		.name		= "h3:green",
+		.default_trigger = "cpu",
+		.gpio		= OMAP_MPUIO(4),
+	},
+};
+
+static struct gpio_led_platform_data h3_gpio_led_data = {
+	.leds		= h3_gpio_led_pins,
+	.num_leds	= ARRAY_SIZE(h3_gpio_led_pins),
+};
+
+static struct platform_device h3_gpio_leds = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &h3_gpio_led_data,
+	},
+};
+
 static struct platform_device *devices[] __initdata = {
 	&nor_device,
 	&nand_device,

@@ -351,6 +378,7 @@ static struct platform_device *devices[] __initdata = {
 	&intlat_device,
 	&h3_kp_device,
 	&h3_lcd_device,
+	&h3_gpio_leds,
 };
 
 static struct omap_usb_config h3_usb_config __initdata = {

@@ -424,6 +452,10 @@ static void __init h3_init(void)
 	omap_cfg_reg(E19_1610_KBR4);
 	omap_cfg_reg(N19_1610_KBR5);
 
+	/* GPIO based LEDs */
+	omap_cfg_reg(P18_1610_GPIO3);
+	omap_cfg_reg(MPUIO4);
+
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 	spi_register_board_info(h3_spi_board_info,
 				ARRAY_SIZE(h3_spi_board_info));

index b08a213..e0d74c4 100644
@@ -398,10 +398,37 @@ static struct platform_device osk5912_lcd_device = {
 	.id		= -1,
 };
 
+static struct gpio_led mistral_gpio_led_pins[] = {
+	{
+		.name		= "mistral:red",
+		.default_trigger = "heartbeat",
+		.gpio		= 3,
+	},
+	{
+		.name		= "mistral:green",
+		.default_trigger = "cpu",
+		.gpio		= OMAP_MPUIO(4),
+	},
+};
+
+static struct gpio_led_platform_data mistral_gpio_led_data = {
+	.leds		= mistral_gpio_led_pins,
+	.num_leds	= ARRAY_SIZE(mistral_gpio_led_pins),
+};
+
+static struct platform_device mistral_gpio_leds = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &mistral_gpio_led_data,
+	},
+};
+
 static struct platform_device *mistral_devices[] __initdata = {
 	&osk5912_kp_device,
 	&mistral_bl_device,
 	&osk5912_lcd_device,
+	&mistral_gpio_leds,
 };
 
 static int mistral_get_pendown_state(void)

@@ -526,6 +553,12 @@ static void __init osk_mistral_init(void)
 	if (gpio_request(2, "lcd_pwr") == 0)
 		gpio_direction_output(2, 1);
 
+	/*
+	 * GPIO based LEDs
+	 */
+	omap_cfg_reg(P18_1610_GPIO3);
+	omap_cfg_reg(MPUIO4);
+
 	i2c_register_board_info(1, mistral_i2c_board_info,
 			ARRAY_SIZE(mistral_i2c_board_info));
 

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deleted file mode 100644
index a1e9fed..0000000
@@ -1,3 +0,0 @@
-extern void innovator_leds_event(led_event_t evt);
-extern void h2p2_dbg_leds_event(led_event_t evt);
-extern void osk_leds_event(led_event_t evt);

index a183777..8abb067 100644
@@ -47,7 +47,6 @@
 
 #include <asm/system.h>
 #include <mach/hardware.h>
-#include <asm/leds.h>
 #include <asm/irq.h>
 #include <asm/sched_clock.h>
 

index 96604a5..85870a8 100644
@@ -48,7 +48,6 @@
 
 #include <asm/system.h>
 #include <mach/hardware.h>
-#include <asm/leds.h>
 #include <asm/irq.h>
 #include <asm/mach/irq.h>
 #include <asm/mach/time.h>

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index b4311b0..90097e8 100644
@@ -22,6 +22,8 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/errno.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>

@@ -69,8 +71,36 @@ static struct platform_device sa1111_device = {
 	.resource	= sa1111_resources,
 };
 
+/* LEDs */
+struct gpio_led badge4_gpio_leds[] = {
+	{
+		.name			= "badge4:red",
+		.default_trigger	= "heartbeat",
+		.gpio			= 7,
+	},
+	{
+		.name			= "badge4:green",
+		.default_trigger	= "cpu",
+		.gpio			= 9,
+	},
+};
+
+static struct gpio_led_platform_data badge4_gpio_led_info = {
+	.leds		= badge4_gpio_leds,
+	.num_leds	= ARRAY_SIZE(badge4_gpio_leds),
+};
+
+static struct platform_device badge4_leds = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &badge4_gpio_led_info,
+	}
+};
+
 static struct platform_device *devices[] __initdata = {
 	&sa1111_device,
+	&badge4_leds;
 };
 
 static int __init badge4_sa1111_init(void)

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index db5e434..1661f2e 100644
@@ -21,6 +21,10 @@
 #include <linux/serial_core.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
+#include <linux/tty.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
+#include <linux/platform_device.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>

@@ -185,9 +189,37 @@ static struct resource hackkit_flash_resource = {
 	.flags		= IORESOURCE_MEM,
 };
 
+/* LEDs */
+struct gpio_led hackkit_gpio_leds[] = {
+	{
+		.name			= "hackkit:red",
+		.default_trigger	= "cpu",
+		.gpio			= 22,
+	},
+	{
+		.name			= "hackkit:green",
+		.default_trigger	= "heartbeat",
+		.gpio			= 23,
+	},
+};
+
+static struct gpio_led_platform_data hackkit_gpio_led_info = {
+	.leds		= hackkit_gpio_leds,
+	.num_leds	= ARRAY_SIZE(hackkit_gpio_leds),
+};
+
+static struct platform_device hackkit_leds = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &hackkit_gpio_led_info,
+	}
+};
+
 static void __init hackkit_init(void)
 {
 	sa11x0_register_mtd(&hackkit_flash_data, &hackkit_flash_resource, 1);
+	platform_device_register(&hackkit_leds);
 }
 
 /**********************************************************************

index 7b9556b..1678fa5 100644
@@ -5,6 +5,9 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/tty.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
+#include <linux/platform_device.h>
 
 #include <mach/hardware.h>
 #include <asm/setup.h>

@@ -45,6 +48,27 @@ static struct map_desc lart_io_desc[] __initdata = {
 	}
 };
 
+/* LEDs */
+struct gpio_led lart_gpio_leds[] = {
+	{
+		.name			= "lart:red",
+		.default_trigger	= "cpu",
+		.gpio			= 23,
+	},
+};
+
+static struct gpio_led_platform_data lart_gpio_led_info = {
+	.leds		= lart_gpio_leds,
+	.num_leds	= ARRAY_SIZE(lart_gpio_leds),
+};
+
+static struct platform_device lart_leds = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &lart_gpio_led_info,
+	}
+};
 static void __init lart_map_io(void)
 {
 	sa1100_map_io();

@@ -58,6 +82,8 @@ static void __init lart_map_io(void)
 	GPDR |= GPIO_UART_TXD;
 	GPDR &= ~GPIO_UART_RXD;
 	PPAR |= PPAR_UPR;
+
+	platform_device_register(&lart_leds);
 }
 
 MACHINE_START(LART, "LART")

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deleted file mode 100644
index 776b602..0000000
@@ -1,13 +0,0 @@
-extern void assabet_leds_event(led_event_t evt);
-extern void badge4_leds_event(led_event_t evt);
-extern void consus_leds_event(led_event_t evt);
-extern void brutus_leds_event(led_event_t evt);
-extern void cerf_leds_event(led_event_t evt);
-extern void flexanet_leds_event(led_event_t evt);
-extern void graphicsclient_leds_event(led_event_t evt);
-extern void hackkit_leds_event(led_event_t evt);
-extern void lart_leds_event(led_event_t evt);
-extern void pfs168_leds_event(led_event_t evt);
-extern void graphicsmaster_leds_event(led_event_t evt);
-extern void adsbitsy_leds_event(led_event_t evt);
-extern void system3_leds_event(led_event_t evt);

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index 5e1e541..d3b70cc 100644
@@ -30,9 +30,9 @@
 #include <linux/uaccess.h>
 #include <linux/random.h>
 #include <linux/hw_breakpoint.h>
+#include <linux/leds.h>
 
 #include <asm/cacheflush.h>
-#include <asm/leds.h>
 #include <asm/processor.h>
 #include <asm/system.h>
 #include <asm/thread_notify.h>

@@ -183,7 +183,7 @@ void cpu_idle(void)
 	/* endless idle loop with no priority at all */
 	while (1) {
 		tick_nohz_stop_sched_tick(1);
-		leds_event(led_idle_start);
+		ledtrig_cpu(CPU_LED_IDLE_START);
 		while (!need_resched()) {
 #ifdef CONFIG_HOTPLUG_CPU
 			if (cpu_is_offline(smp_processor_id()))

@@ -207,7 +207,7 @@ void cpu_idle(void)
 				local_irq_enable();
 			}
 		}
-		leds_event(led_idle_end);
+		ledtrig_cpu(CPU_LED_IDLE_END);
 		tick_nohz_restart_sched_tick();
 		preempt_enable_no_resched();
 		schedule();

index cb634c3..a2a0c88 100644
@@ -27,7 +27,6 @@
 
 #include <linux/mc146818rtc.h>
 
-#include <asm/leds.h>
 #include <asm/thread_info.h>
 #include <asm/sched_clock.h>
 #include <asm/stacktrace.h>

@@ -84,21 +83,6 @@ u32 arch_gettimeoffset(void)
 }
 #endif /* CONFIG_ARCH_USES_GETTIMEOFFSET */
 
-#ifdef CONFIG_LEDS_TIMER
-static inline void do_leds(void)
-{
-	static unsigned int count = HZ/2;
-
-	if (--count == 0) {
-		count = HZ/2;
-		leds_event(led_timer);
-	}
-}
-#else
-#define	do_leds()
-#endif
-
-
 #ifndef CONFIG_GENERIC_CLOCKEVENTS
 /*
  * Kernel system timer support.

@@ -106,7 +90,6 @@ static inline void do_leds(void)
 void timer_tick(void)
 {
 	profile_tick(CPU_PROFILING);
-	do_leds();
 	xtime_update(1);
 #ifndef CONFIG_SMP
 	update_process_times(user_mode(get_irq_regs()));